CN111866411A - Content display apparatus, method, apparatus, and computer-readable storage medium - Google Patents

Abstract

Embodiments of the present disclosure relate to a content display apparatus, method, apparatus, and computer-readable storage medium. The content display device described herein includes: a deformation in a housing of the content display device, the deformation adapted to reflect the combined visible light and to cause a change in a pattern characteristic of the combined visible light for positioning the content display device; and a Visible Light Communication (VLC) receiver disposed at a position in the housing corresponding to the deformation, and configured to convert the light signal emitted in the form of combined visible light into content corresponding to the position of the content display device. The method combines the visible light communication technology with the structured light positioning technology, reduces the number of required wireless routers, provides higher data rate, and simultaneously ensures data security.

Description

Content display apparatus, method, apparatus, and computer-readable storage medium

technical field

Embodiments of the present disclosure generally relate to the field of communication technologies, and more particularly, to devices, methods, apparatuses, and computer-readable storage media for content display.

Background technique

As users' requirements for video experience continue to increase, technologies such as interactive virtual reality (VR)/augmented reality (AR) provide ultra-high-definition picture quality and enable participants to interact with the created virtual environment, even fully immersed in it. Simulation technology came into being. Such interactive technology has a sensory function, which can capture the reactions and behaviors of participants, and then use computer processing to generate video content that is adapted to the participants' reactions and behaviors.

Wireless Local Area Networks (WLANs) compliant with the 802.11 family of standards are the most commonly used technology to provide effective bandwidth to VR-enabled wireless devices. At present, in order to meet the needs of multiple users watching VR images or experiencing VR games at the same time, it is possible to expand the wireless network coverage and increase the available network bandwidth by increasing the number of wireless routers (eg, Wi-Fi APs). However, interference occurs between Wi-Fi APs, degrading the user experience.

SUMMARY OF THE INVENTION

In general, example embodiments of the present disclosure propose a content display apparatus, method, apparatus, and computer-readable storage medium.

In a first aspect, a content display device is provided. The content display device includes: a deformation in a housing of the content display device adapted to reflect the combined visible light and change a pattern characteristic of the combined visible light for positioning the content display device; and a visible light communication (VLC) receiver, It is arranged in the housing at a position corresponding to the deformation, and is configured to convert the light signal emitted in the form of combined visible light into content corresponding to the position of the content display device.

In a second aspect, an integrated communication device is provided. The integrated communication device includes a visible light communication (VLC) transmitter and a combined light projector. The VLC transmitter is configured to: modulate the content data signal into an optical signal; and emit the optical signal in visible light. The combined light projector is configured to: combine the visible light with the pattern features to obtain the combined visible light; and project the combined visible light.

In a third aspect, a media server is provided. The media server includes at least one processor and at least one memory including computer program code. At least one memory and computer program code are configured to, with the at least one processor, cause the media server to: set a first communication address for downlink data transmission for the content display device according to the first aspect, and for uplink data A second communication address that is different from the first communication address is transmitted.

In a fourth aspect, a content display system is provided. The content display system includes a content display device according to the first aspect, an integrated communication device according to the second aspect, and a media server according to the third aspect.

In a fifth aspect, a method for displaying content is provided. The method includes receiving, from an integrated communication device, an optical signal emitted in the form of combined visible light, the optical signal being transmitted based on location information of the content display device, the location information of the content display device using deformations located in a housing of the content display device and being determined; and converting the light signal into content corresponding to the location of the content display device.

In a sixth aspect, a method for communicating is provided. The method includes: modulating a content data signal into an optical signal; emitting the optical signal in the form of visible light; combining the visible light with pattern features to obtain the combined visible light; and projecting the combined visible light.

In a seventh aspect, a method for communicating is provided. The method includes setting, for the content display device according to the first aspect, a first communication address for downlink data transmission, and a second communication address for uplink data transmission that is different from the first communication address.

In an eighth aspect, an apparatus for displaying content is provided. The apparatus includes: means for receiving, from an integrated communication device, an optical signal emitted in the form of combined visible light, the optical signal being transmitted based on location information of the content display device, the location information of the content display device using a location information located at the content display device deformation of the housing; and means for converting the light signal into content corresponding to the position of the content display device.

In a ninth aspect, an apparatus for communicating is provided. The device includes: means for modulating a content data signal into an optical signal; means for emitting the optical signal in visible light; means for combining the visible light with pattern features to obtain the combined visible light; and for projecting the combined Visible light components.

In a tenth aspect, an apparatus for communicating is provided. The apparatus includes: for setting a first communication address for downlink data transmission with respect to the content display device according to the first aspect, and a first communication address different from the first communication address for uplink data transmission Two communication address components.

In an eleventh aspect, there is provided a computer-readable storage medium having a computer program stored thereon. The computer program comprises instructions which, when executed by a processor on the device, cause the device to perform the method according to the fifth aspect.

In a twelfth aspect, example embodiments of the present disclosure provide a computer-readable storage medium having a computer program stored thereon. The computer program comprises instructions which, when executed by a processor on the device, cause the device to perform the method according to the sixth aspect.

In a thirteenth aspect, example embodiments of the present disclosure provide a computer-readable storage medium having a computer program stored thereon. The computer program includes instructions which, when executed by a processor on the device, cause the device to perform the method according to the seventh aspect.

It should be understood that the matters described in this Summary are not intended to limit key or critical features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Description of drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent when taken in conjunction with the accompanying drawings and with reference to the following detailed description. In the drawings, the same or similar reference numbers refer to the same or similar elements, wherein:

FIG. 1 illustrates an example communication system in which embodiments of the present disclosure may be implemented;

Figure 2 shows a schematic diagram of the principle of structured light positioning;

FIG. 3 shows a flowchart of an interaction process according to an example embodiment of the present disclosure;

4A shows a schematic diagram of a content display device according to an example embodiment of the present disclosure;

4B shows a block diagram of a visible light communication (VLC) receiver according to an example embodiment of the present disclosure;

5 shows a flowchart of a method for implementation at a content display device according to an example embodiment of the present disclosure;

6A shows a block diagram of an integrated communication device according to an example embodiment of the present disclosure;

6B shows a block diagram of a visible light communication (VLC) transmitter according to an example embodiment of the present disclosure;

7 shows a flowchart of a method for implementation at an integrated communication device according to an example embodiment of the present disclosure;

8 shows a block diagram of a media server according to an example embodiment of the present disclosure;

9 shows a flowchart of a method for implementation at a media server according to an example embodiment of the present disclosure;

10 shows a block diagram of an apparatus suitable for implementing example embodiments of the present disclosure.

Detailed ways

Some example embodiments will be described below with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for further A thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the protection scope of the present disclosure.

The term "visible light (VLC) communication" used herein refers to a wireless communication method in which light in the visible light band is used as an information carrier to directly transmit optical signals in the air. Visible light communication technology can achieve data rates of 1Gbps to 3.4Gbps. Fluorescent lamps, incandescent lamps, fluorescent lamps, light emitting diodes (LEDs) and the like can all be used as light sources of visible light. For the convenience of discussion, the example embodiments of the present disclosure are described by taking an example of an LED as a light source of visible light.

The term "combined visible light" as used herein refers to visible light having structural or patterned features and modulated and carrying digital signals thereon. The structural or pattern features may include stripe patterns, spot patterns, circle patterns, grid patterns, and any suitable combination thereof, depending on specific needs. By projecting the combined visible light to the device supporting VLC technology, the function of measuring the location information of the device and transmitting data to the device can be realized at the same time.

The term "content display device" as used herein refers to a device having wireless communication capabilities for displaying images, and may be a multimedia player, a tablet computer, a smart phone, a wearable device, and the like. For the convenience of discussion, the exemplary embodiments of the present disclosure are described by taking a virtual reality (VR)/augmented reality (AR) all-in-one machine as an example of a content display device.

The term "Ultra High Definition (UHD)" as used herein refers to Ultra High Definition, with resolutions up to 4K and beyond. For example, 4K is a resolution standard of 3840*2160 pixels, and 8K is a resolution standard of 7680*4320 pixels. The term "high definition (HD)" refers to the full HD resolution of 720P or higher, and its resolution reaches the standard of 1280*720 pixels or higher. The term "standard definition (SD)" refers to standard definition, which can achieve a resolution standard of more than 720*480 pixels.

The term "circuit" as used herein refers to one or more of the following:

(a) hardware-only circuit implementations (such as analog and/or digital-only circuit implementations); and

(b) a combination of hardware circuits and software, such as (if applicable): (i) a combination of analog and/or digital hardware circuits and software/firmware, and (ii) any portion of a hardware processor and software (including working together to digital signal processors, software, and memory that cause devices, such as OLTs or other computing devices, to perform various functions); and

(c) Hardware circuits and/or processors, such as a microprocessor or portion of a microprocessor, that require software (eg, firmware) for operation, but may be absent when software is not required for operation.

The definition of circuit applies to all uses of this term in this application, including in any claims. As another example, the term "circuitry" as used herein also covers an implementation of only a hardware circuit or processor (or processors), or a portion of a hardware circuit or processor, or its accompanying software or firmware. For example, if applicable to a particular claim element, the term "circuitry" also covers a baseband integrated circuit or a processor integrated circuit or similar integrated circuit in an OLT or other computing device.

As used herein, the term "including" and variations thereof are open inclusive, ie "including but not limited to". The term "based on" is "based at least in part on." The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". Relevant definitions of other terms will be given in the description below.

Currently, with the popularization of VR/AR technology, more and more UHD VR/AR applications, such as interactive VR/AR video or game applications, are welcomed by the majority of users. As mentioned earlier, when performing a VR/AR experience, the VR/AR system needs to capture the participant's reactions and behaviors to convert them into necessary interactive inputs. For example, the user's position in the virtual environment can be located by tracking the user's head movement through the VR headset used by the user. This requires the headset VR/AR all-in-one to provide high-precision tracking and positioning functions. In order not to restrict the user's movement, the head-mounted VR/AR all-in-one machine generally adopts wireless communication technology. At the same time, in order not to degrade the user experience, the head-mounted VR/AR all-in-one machine should also have the smallest possible size and light weight. However, in traditional VR/AR all-in-one machines, the functions for tracking and positioning and the functions for wireless communication are provided by two independent systems. This is obviously unfavorable for the weight, volume and cost of the VR/AR all-in-one machine.

On the other hand, in order to support UHD 360-degree panorama technologies such as VR/AR video applications, sufficient WLAN coverage and bandwidth requirements far higher than SD standards are required. However, the data rates provided by the commonly used 802.11 family of standards are not sufficient to support many simultaneous users of UHD VR/AR experiences. As an example, 802.11ay is the wireless standard with the highest data rate currently achievable in the 802.11 family of standards. According to the standard established by IEEE, 802.11ay can achieve a single-stream transmission rate of 44 Gbps, and a four-stream concurrent transmission rate of up to 176 Gbps, of which 44 Gbps is used for downlink and 132 Gbps is used for uplink. Assuming a downlink data rate of 2Gbps required for a single user in an indoor environment capable of providing a VR/AR video or gaming experience (such as a movie theater, gaming bar, gaming cabin, the cabin of an airplane or cruise ship, etc.), an 802.11 ay AP can only support about 22 users to experience at the same time.

As mentioned earlier, one solution is to expand the coverage of WLANs and provide adequate data rates by deploying high-density wireless routers such as Wi-Fi APs. However, this solution will at least face the following problems: 1) wireless routers interfere with each other, thereby reducing the effective transmission rate; 2) it is very difficult to allocate radio spectrum resources for high-density deployment of wireless routers; 3) wireless routers will Other radio communication systems deployed in the scene cause interference; and 4) data transmitted via Wi-Fi is easily intercepted in the air, so that data security is not guaranteed.

The inventor realized that visible light communication has the advantages of high transmission rate, strong data security, no electromagnetic interference, and no need for spectrum certification. A good solution to the above problem.

To this end, example embodiments of the present disclosure propose an interactive communication mechanism that combines VLC technology and structured light technology. The mechanism modulates the media data into an optical signal transmitted with visible light as a carrier, and combines the visible light with the pattern features used for positioning, thereby forming a combined visible light. In this way, when the combined visible light is projected to a content display device (eg, VR headset, VR kiosk), the content display device can receive streaming media data via a downlink using, eg, a VLC-enabled receiver. At the same time, since a part of the combined visible light will be reflected by the content display device, the pattern characteristics of the part of the combined visible light will change, and the position information of the content display device can be determined based on the degree of change.

In other words, the communication mechanism according to the exemplary embodiments of the present disclosure simultaneously realizes the functions of positioning and data transmission by combining visible light, which will greatly alleviate the problem of insufficient effective bandwidth, reduce the number of required wireless routers, and provide high accuracy positioning function. Such an interactive communication mechanism makes it possible for more users to simultaneously experience VR/AR video or gaming in the same space.

In particular, such a communication mechanism can be well integrated with indoor environments with limited electromagnetic wave transmission and many obstacles, because visible light sources (eg, LEDs, incandescent lamps, fluorescent lamps, etc.) Energy efficient and economical.

In addition, the communication mechanism according to the exemplary embodiments of the present disclosure is more secure and reliable than the communication mechanism completely relying on WLAN.

FIG. 1 illustrates an example communication system in which embodiments of the present disclosure may be implemented. As shown in FIG. 1 , the communication system 100 includes a content display device 110 , an integrated communication device 120 , a media server 130 , a wireless router 140 , and a routing switching device 150 .

The content display device 110 may wirelessly communicate with the media server 130 via the wireless router 140 and the routing switching device 150 , eg, transmit uplink data to or receive downlink data from the media server 130 . The content display device 110 and the integrated communication device 120 communicate wirelessly using VLC technology, eg, the content display device 110 may receive downlink data from visible light projected by the integrated communication device 120 . The content display device 110 will be discussed in detail later.

The integrated communication device 120 communicates with the media server 130 wired or wirelessly via a broadband local area network (eg, via Gigabit Ethernet) or any suitable network. In some example embodiments, integrated communication device 120 may be configured to request content data signals from media server 130 . The integrated communication device 120 will be discussed in detail later.

In the communication system shown in FIG. 1 , the media server 130 may act as a data source, providing content data signals to the integrated communication device 120 so that the integrated communication device 120 sends the content data signal to the content display device 110 . In other example embodiments, the media server 130 may retrieve content data from a remote node such as an application server, portal server, content server, or cloud server (not shown) via the Internet and provide it to the integrated communication device 120 . In such an embodiment, the content server may store all content data and act as a data source, the portal server and application server may be configured to support VR/AR applications installed on the content display device 110, and provide an electronic program guide (EPG) system to provide indexing and navigation of various services to the content display device 110. The media server 130 will be discussed in detail later.

The wireless router 140 is connected to the media server via the routing switching device 150 and is configured to provide wireless network coverage to the indoor environment in which the user is located. The wireless router 140 may be a network device compliant with the 802.11 series of standards or implemented by any suitable device, such as a Wi-Fi AP, and the scope of the present disclosure is not limited in this regard.

Routing switching device 150 may be any suitable network device capable of network interconnection, and the scope of the present disclosure is not limited in this regard.

In particular, in example embodiments, the communication system 100 may be a content delivery network (CDN) architecture based communication system. At this point, the media server 130 may act as a CDN edge delivery server or edge node, while the remote node may act as a central content server.

It should also be understood that the communication system 100 is described for exemplary purposes only and does not imply any limitation on the scope of the present disclosure. For example, example embodiments of the present disclosure may also be applied to systems other than the communication system 100 . The number of elements or entities shown is merely an example, not a limitation. Furthermore, any communication technology currently known and developed in the future may be employed for communication between elements or entities. As an example, in scenarios such as VR/AR theaters, game bars, or cabins of airplanes or cruise ships that support VR/AR display systems, there may be many users performing VR/AR experiences at the same time. At this time, the communication system 100 may include more than one content display device 110 and more than one integrated communication device 120 , and a single integrated communication device 120 may correspond to one or more content display devices 110 .

Exemplary embodiments of the present disclosure track the movement of the content display device 110 with the help of the structured light-based measurement technology, using the principle that the pattern features of the structured light change when encountering obstacles or people, thereby achieving high accuracy for the user Degree positioning. Figure 2 shows the principle of structured light positioning. As shown in FIG. 2 , when the structured light having a striped pattern projected from the projector 210 encounters the protruding structures 220 , the pattern characteristics thereof are changed, such as distortion or deformation. The camera 230 can capture the reflected structured light whose pattern features have changed, and then the position of the protruding structures 220 can be calculated according to the change degree of the pattern features. For calculating location information, many algorithms are known and will not be described here.

3 shows a flowchart of an example interaction process according to example embodiments of the present disclosure. For discussion purposes, an example interaction process 300 will be described with reference to FIG. 1 . Process 300 may involve content display device 110 , integrated communication device 120 , and media server 130 as shown in FIG. 1 . It should be understood that although the process 900 is described with respect to the communication system 100 of FIG. 1, the process shown in FIG. 3 is equally applicable to other communication scenarios.

In process 300, media server 130 sets (305) a first communication address for downlink data transmission and a second communication address for uplink transmission for content display device 110. Depending on the wireless communication technology used, the communication address may include an IP address or any other type of wireless communication address, such as a Bluetooth-compliant device address, a ZigBee-compliant device address, and the like.

According to example embodiments of the present disclosure, the content display device 110 may be implemented by any suitable device supporting image/video playback, VR/AR display systems, including but not limited to multimedia players, smartphones, laptops, tablet devices , wearable devices (for example, head-mounted VR devices, VR/AR all-in-one machines, etc.), etc.

The media server 130 may employ any suitable protocol or mechanism to set and manage the communication addresses for the content display device 110, such as a Netconf network configuration protocol based dynamic IP address mechanism and/or a static IP address machine. According to an exemplary embodiment of the present disclosure, the first communication address set by the media server 130 is different from the second communication address, and the two communication addresses respectively correspond to two wireless communication mechanisms supported by the content display device 110, which will be detailed later discuss.

The media server 130 sets ( 310 ) a first communication address for the integrated communication device 120 .

Optionally, the content display device 110 may send ( 315 ) a content data signal request to the media server 130 using the set second communication address, eg, via the wireless router 140 . The content data signal request may include configuration and settings of the content display device 110, eg, a first communication address and a second communication address. In such an embodiment, the media server then sends at least the first communication address in the configuration of the content display device 110 to the corresponding integrated communication device 120 . Optionally, the content display device 110 may also receive data from the media server 130 via the wireless router 140 using the set second communication address, for example.

The media server 130 signals ( 320 ) the content data to the integrated communication device 120 . Content data signals may include, but are not limited to, multimedia files, VR/AR video streams, and the like. In an example embodiment, the media server 130 may transmit the content data signal in response to a content data signal request, or may transmit it directly.

The integrated communication device 120 modulates (325) the content data signal into an optical signal, emits (330) the optical signal as visible light, combines the visible light with the pattern features, and obtains (335) the combined visible light. The pattern features combined with visible light may include at least one of a stripe pattern, a speckle pattern, a circle pattern, and a grid pattern.

In an example embodiment, the integrated communication device 120 is a network device supporting visible light communication technology. In addition, the integrated communication device 120 can also serve as a lighting device in the indoor environment covered by the communication system 100 . As an example, the integrated communication device 120 may be installed within a venue providing a VR/AR video or gaming experience where one or more users are viewing VR/AR content using the content display device 110 .

The integrated communication device 120 then projects (340) the combined visible light. In an example embodiment, the housing of the content display device 110 has a deformation adapted to receive and reflect light (eg, combined light). Since the combined light has pattern characteristics, when the combined light is projected on the content display device, the pattern characteristics will change. As discussed above, the principle that the pattern characteristics of structured light change when encountering obstacles or people can be used to track the movement of a user or a specific part of a user's body (eg, head). In this way, the deformation of the housing of the content display device can serve as an identification block for locating the head movement of the user.

The integrated communication device 120 receives ( 345 ) the combined visible light reflected by the content display device 110 . As described above, the pattern characteristics of the combined visible light have changed, and based on the changes in the pattern characteristics, the integrated communication device 120 determines ( 350 ) the location information of the content display device 110 .

In some example embodiments, the position of the content display device 110 may be defined by multiple degrees of freedom (nDoF). For example, nDoF may include three degrees of freedom (3DoF) and six degrees of freedom (6DoF). When 3DoF is used to locate the content display device, the user's actions or movements can be reflected in three degrees of freedom, such as up and down, left and right, and front and back. 6DoF is an additional consideration of pitch, yaw, and roll three degrees of freedom on the basis of 3DoF. Thus, when the content display device is positioned using 6DoF, the user's actions or movements can be reflected in the above-mentioned six degrees of freedom.

In some example embodiments, the integrated communication device 120 may also determine the speed of movement of the content display device 110 based on, for example, changes in pattern characteristics over a period of time.

The content display device 110 may convert (355) the light signal emitted in the form of combined visible light into content for display. As an example, the content may be image or video content.

The integrated communication device 120 then requests ( 360 ) the content data signal corresponding to the location information from the media server 130 .

As an example, in the case where the content display device 110 is a head-mounted VR device, the location information of the content display device 110 corresponds to the user's head movement and may indicate the user's current field of view. When the location of the user undergoing VR/AR experience changes, the picture presented to the user should also change accordingly, so the media server 130 needs to be requested for content adapted to the user's current field of view.

In response to the request from the integrated communication device 120, the media server 130 provides (365) the content data signal corresponding to the location to the integrated communication device 120.

Similar to steps 325-335, the integrated communication device 120 modulates (370) the received content data signal into an optical signal, transmits (375) the optical signal in visible light, and combines the visible light with pattern features to obtain ( 380) Combining visible light.

In turn, the integrated communication device 120 projects (385) a combined visible light to the content display device 110, the light signal emitted in the form of the combined visible light including the content data signal corresponding to the location of the content display device 110.

The content display device 110 converts ( 390 ) the light signal emitted in the form of combined visible light into content corresponding to the location of the content display device 110 . In an example embodiment, the content display device 110 utilizes the first communication address to perform downlink transmission, ie, receive optical signals. After receiving the optical signal, the content display apparatus 110 may convert the optical signal into an electrical signal, and demodulate the electrical signal to obtain a content data signal corresponding to the location. The content display device 110 may then display the content associated with the content data signal.

Although the various steps in the above interaction process 300 are described in a particular order, this order is for illustrative and non-limiting purposes only. Unless explicitly stated, it should not be understood that such interactions are required to be performed in the particular order shown or in a sequential order. In some cases, multitasking or parallel processing can be beneficial. Additionally, the interactive process 300 may also include additional operations not shown and/or one or more operations shown may be omitted. As an example, for example, operations 330 and 335, operations 350 and 355 may be performed synchronously, and so on.

FIG. 4A shows a schematic diagram of a content display device according to an example embodiment of the present disclosure. The content display device may be implemented as the content display device 110 shown in FIG. 1 .

As shown in FIG. 4A, the housing of the content display device 110 has a deformation adapted to receive and reflect visible light. The content display apparatus 110 includes a visible light communication (VLC) receiver 412 arranged at a position corresponding to the deformation of the casing. In some example embodiments, the VLC receiver 412 may be mounted or inlaid on the housing of the content display device 110 to impart deformation to the housing. As an example, the VLC receiver 412 may be directly mounted on the housing surface of the content display device 110, or a certain area may be hollowed out from the housing surface of the content display device 110 and the VLC receiver 412 embedded in the area. Although in FIG. 4A the VLC receiver 412 is shown in a raised structure on the housing of the content display device 410, the VLC receiver 412 may also have other topographical structures suitable for reflecting light, such as a recessed structure. Alternatively, in the case where the VLC receiver 412 is embedded on the casing of the content display device 110 and the two are in the same continuous plane, since the material of the VLC receiver 412 is different from the material of the casing surface, the existence of the VLC receiver 412 It still causes the pattern characteristics of the reflected visible light to change. As described above, the deformation of the housing can be used as an identification block for locating the user's head movement, so as long as the deformation is suitable for reflecting visible light and changing the pattern characteristics of the visible light.

In an example embodiment, the content display device 110 may also include a wireless signal transmitter so that the content display device 110 may communicate using other wireless communication technologies such as LTE, LTE-A, 5G, Wi-Fi, Bluetooth, ZigBee, and the like. In some example embodiments, the wireless signal transmitter may communicate with the media server 130 via the wireless router 140 and the routing switching device 150 . In some example embodiments, the wireless signal transmitter may be replaced by a wireless signal transceiver, which simultaneously has the function of uplink/downlink bidirectional transmission, and the present disclosure is not limited in this respect.

It should be understood that the content display device 110 also includes other components necessary for content display, including but not limited to a core processing unit, a display terminal, a driving component, an input/output component, a touch sensor, a data transmission interface, a power supply, and the like. For ease of discussion and for simplicity, these components are not shown in the figures, but are not meant to be absent from embodiments of the present disclosure, and the scope of the present disclosure is not limited in this regard. It should be understood that the routing switching device 150 includes, but is not limited to, gateways, routers, switches, and other devices or apparatuses having routing switching functions.

4B shows a block diagram of a VLC receiver according to an example embodiment of the present disclosure. The VLC receiver may be implemented by the VLC receiver 412 shown in Figure 4A. As shown in FIG. 4B , the VLC receiver 412 includes a photodiode 414 , an amplification and filtering module 416 , an analog-to-digital (AD) converter 418 , a signal processing module 420 , and a modulation module 422 . It should be understood that the VLC receiver 412 is merely an example, the VLC receiver may also include additional components or modules not shown, and the scope of the present disclosure is not limited in this regard.

FIG. 5 shows a flowchart of a method 500 for implementation at a content display device according to an example embodiment of the present disclosure. For ease of discussion, the method 500 will be described below from the perspective of the content display device 110 in conjunction with FIGS. 4A and 4B.

As shown in FIG. 5 , at block 510 , the VLC receiver 412 of the content display device 110 receives from the integrated communication device 120 the optical signal transmitted in combined visible light.

At block 520 , the VLC receiver 412 converts the light signal into content corresponding to the location of the content display device 110 . According to embodiments of the present disclosure, optical signals emitted in the form of combined visible light are used to carry content data.

In some example embodiments, an example implementation of the steps at block 520 may include receiving, by the VLC receiver 412, a light signal corresponding to the location of the content display device. The optical signal is converted to an electrical signal by the photodiode 414 . The electrical signal is processed by the AD converter 418, the signal processing module 420 and the demodulation module 422, and then the content data signal is obtained. The display device 110 then displays content associated with the content data signal, such as VR/AR video content adapted to the user's current field of view.

In some example embodiments, the content display device 110 further includes a wireless signal transmitter. The wireless signal transmitter may utilize any suitable wireless communication technology and standard, whether currently known or developed in the future, such as LTE, LTE-A, 5G, Wi-Fi, Bluetooth, ZigBee, Long Range Communication (LoRa), and the like. The scope of the present disclosure is not limited in this regard.

Also, in an example embodiment, the VLC receiver 412 of the content display device 110 may be configured to perform downlink data transmission, such as receiving optical signals transmitted in combined optical, wireless signal transmitters, for example using the first communication address Uplink data transmissions, such as sending registration requests, service requests, content data signal requests, etc. to the server, may be performed using a second communication address different from the first communication address.

The content display device according to the exemplary embodiment of the present disclosure has a deformation suitable for reflecting combined visible light, in particular, by arranging the VLC receiver at a position corresponding to the deformation, so that positioning and downlinking can be simultaneously achieved by processing the combined visible light function of data transmission. Such a content display device has a lower weight, a smaller volume, and a lower cost than conventional devices that employ two separate systems to provide positioning functions and wireless communication functions, respectively.

In addition, the content display device according to the exemplary embodiment of the present disclosure can realize interactive communication through a flexible two-way high-speed communication mechanism. Since uplink/downlink data transmission utilizes different wireless communication technologies, the downlink data transmission requiring high data rate is configured to utilize VLC technology, while the uplink data transmission requiring less data rate and bandwidth is configured to utilize VLC technology. Other wireless communication technologies can not only help reduce delays, enable image content such as VR/AR videos to be displayed smoothly, and realize real-time interaction with VR/AR video applications, but also effectively reduce the time required for VR/AR experience venues. The number of wireless routers can significantly improve the user experience when watching VR/AR videos.

6A shows a schematic diagram of an integrated communication device according to an example embodiment of the present disclosure. The integrated communication device may be implemented by integrated communication device 120 as shown in FIG. 1 . As shown in FIG. 6A , the integrated communication device 120 includes a VLC transmitter 612 and a combined light projector 614 . In an example embodiment, the integrated communication device 120 may also include at least one camera 616 .

At least one camera 616 may be a specially designed infrared camera or any suitable camera. In an example embodiment, the at least one camera may be arranged independently of the integrated communication device 120 . In particular, where permitted, a dual-camera arrangement may also be employed.

According to an example embodiment of the present disclosure, the integrated communication device 120 may be an optoelectronic communication device supporting photoelectric conversion. It should be understood that the integrated communication device 120 may also include other physical or virtual elements or components, such as digital-to-analog converters, and that the illustrated numbers of elements or entities are merely examples. For convenience of discussion, an integrated communication device including a camera is taken as an example for description below. However, it should be noted that all the features described are equally applicable to the embodiment in which the camera exists independently.

6B shows a schematic diagram of a VLC transmitter according to an example embodiment of the present disclosure. The VLC transmitter may be implemented by the VLC transmitter 612 shown in Figure 6A. As shown in FIG. 6B , the VLC transmitter 612 includes a modulation module 622 , a signal processing module 624 , a digital-to-analog (DA) converter 626 , an amplification and biasing module 628 , and a light emitting diode (LED) 630 . It should be understood that the VLC transmitter 612 shown in FIG. 6B is only an example, and the VLC transmitter may also include additional components or modules not shown, such as structured light imaging components, etc., and the scope of the present disclosure is not limited in this respect.

FIG. 7 shows a flowchart of a method 700 for implementation at an integrated communication device according to an example embodiment of the present disclosure. For ease of discussion, the method 700 will be described below from the perspective of the integrated communication device 120 in conjunction with Figures 6A and 6B.

At block 710, the VLC transmitter 612 modulates the content data signal into an optical signal. For example, according to example embodiments of the present disclosure, content data signals obtained from a source of content data signals, eg, media server 130, may be modulated by modulation module 622 of VLC transmitter 612 and converted via signal processing module 624, DA conversion The amplifier 626 and the amplification and biasing module 628 process to obtain the optical signal.

At block 720, the VLC transmitter 612 emits an optical signal in visible light. For example, according to example embodiments of the present disclosure, the LED 630 may be used as a light source of visible light. It should be understood, however, that other light sources may also be used to emit light signals, such as incandescent lamps, fluorescent lamps, and the like. Also, the number of light sources is merely an example, and the scope of the present disclosure is not limited in this regard.

At block 730, the combined light projector 614 combines the visible light with the pattern features to obtain combined visible light. Only in the aspect of the combination of visible light and pattern features, the known principle of structured light is applied, so the specific manner of realizing the combination will not be described in detail here.

At block 740, the combined light projector 614 projects combined visible light. As an example, the range of projecting combined visible light may be limited to a certain spatial range, such as a place where a user performs a VR/AR experience.

In some embodiments, at least one camera 616 may receive combined visible light reflected by the content display device (eg, deformation of the housing of the content display device), and determine the location of the content display device based on changes in pattern characteristics of the reflected combined visible light information.

In some embodiments, the at least one camera 616 may compare the change in the pattern characteristic to the reference pattern characteristic, and based on the comparison, determine the location information of the content display device. In the context of the present disclosure, reference pattern features may be original, undistorted, or unaltered pattern features. In addition, as mentioned above, many algorithms are known for calculating location information, so they will not be repeated here. Additionally or alternatively, in example embodiments, a dual camera arrangement may be employed, which would provide greater positioning accuracy and reliability.

Additionally or alternatively, in a situation where the user's motion range is relatively large, a relatively wide-ranging and relatively low-accuracy positioning may first be performed by at least one camera 616 to determine the user's range of motion. Furthermore, by using the method 700 shown in FIG. 7 , a positioning with a relatively small range and high precision is performed within the determined activity range. In this way, the integrated communication device 120 can implement a multi-level positioning function with a wide range and high accuracy.

In some example embodiments, the integrated communication device 120 may also request a content data signal corresponding to the location information of the content display device 110 from the media server 130 according to the determined location information.

Additionally or alternatively, the integrated communication device 120 may also determine the speed of movement of the content display device based on changes in the pattern characteristics of the combined visible light reflected over a certain period of time.

Additionally or alternatively, the integrated communication device 120 may also decide whether to request the media server 130 for a content data signal corresponding to the location information according to whether the location information of the content display device 110 changes. In such an embodiment, the at least one camera 616 detects changes in the location information of the content display device 110 . If the location information of the content display device 110 changes, which means that the user's field of view changes, a corresponding content data signal is requested from the media server 130 to adapt to the current field of view. Conversely, if the location information has not changed, meaning that the user's field of view has not changed, there is no need to send a request.

By forming and projecting combined visible light, the integrated communication device and the communication mechanism adopted according to the embodiments of the present disclosure can not only track or locate all persons or objects within a spatial range, but also transmit to the content display device as the recipient. light signal. Thus, it is possible to simultaneously benefit from the high data rate of VLC technology and the high precision positioning of structured light technology.

Figure 8 shows a schematic diagram of a media server according to an example embodiment of the present disclosure. The media server may be implemented as the media server 130 shown in FIG. 1 .

In the context of the present disclosure, the media server may be implemented using any suitable machine and may be equipped with sufficient resources. For example, as shown in FIG. 8 , the media server 130 may include at least one processor 812 and at least one memory 814 . For example, memory 814 may be implemented as a redundant array of independent disks (RAID) for storing frequently used content data. The media server 130 may communicate with the integrated communication device 120 in the communication system over a local area network (eg, Gigabit Ethernet). In addition, the media server 130 communicates with the wireless router 140 in the communication system via the routing switching device 150 . In an example embodiment, the media server 130 may also communicate with remote nodes, such as application servers, portal servers, content servers, or cloud servers, via the Internet. The scope of the present disclosure is not limited in this regard.

Figure 9 shows a flow diagram of a method 900 for implementation at a media server according to an example embodiment of the present disclosure. For ease of discussion, 900 will be described below from the perspective of media server 130 in conjunction with FIG. 8 . It should be understood that method 900 may also include additional actions not shown, and the scope of the present disclosure is not limited in this regard.

At block 910, the media server 130 sets, for the content display device 110, a first communication address for downlink data transmission, and a second communication address different from the first communication address for uplink data transmission. Depending on the wireless communication technology used by the content display device 110, the communication address may include an IP address or any other type of wireless communication address, such as a device address associated with Bluetooth, a device address associated with ZigBee, and the like.

In some embodiments, the VLC receiver 412 of the content display device 110 receives the light signal transmitted in visible light from, eg, the integrated communication device 120 via a first communication address, while the wireless signal transmitter of the content display device 110 is via a second communication address Uplink data transmissions are performed, such as sending registration requests, service requests, signaling for interaction, data signal requests, etc. to the media server 130 .

In some additional example embodiments, the method 900 may also inform the integrated communication device 120 and the media server 130 about the configuration (eg, the first communication address) of the content display device 110 so that the integrated communication device 120 and the media server 130 can The first communication address is used to communicate with the content display device 110 .

In the example of FIG. 9 , at block 920 , the media server 130 may send the first communication address to the integrated communication device 120 .

Optionally, at block 930 , the media server 130 receives a request from the integrated communication device 120 for a content data signal corresponding to the location information of the content display device 110 .

Optionally, at block 940, in response to the request from the integrated communication device 120, the media server 130 provides the content data signal to the integrated communication device 120 such that the integrated communication device 120 transmits the content data signal to the first communication address.

In some embodiments, the request for the content data signal corresponding to the location information of the content display device includes the location information of the content display device 110 . The media server 130 retrieves the corresponding content data signal according to the location information.

In some embodiments, the memory 814 of the media server 130 may store certain multimedia files, such as VR/AR video streams, movies, and the like. When the memory 814 stores the content data requested by the integrated communication device 120 , the media server 130 can locally retrieve the content data corresponding to the location information and provide the content data to the integrated communication device 120 . Alternatively, in response to a request from the integrated communication device 120, the media server 130 may request retrieval of the content data corresponding to the location information from a remote node in the Internet when the memory 814 does not store the requested content data. The remote node may be a remote server such as a portal server, an application server, a content server, or a cloud server, and the scope of the present disclosure is not limited in this regard.

It should be understood that method 900 may also include additional actions not shown, and the scope of the present disclosure is not limited in this regard.

The media server according to the exemplary embodiment of the present disclosure may set different communication addresses for different wireless communication technologies. By setting the first communication address for the VLC technology and setting the second communication address for other wireless communication technologies, the uplink/downlink data transmission can be implemented using different wireless communication technologies. In this way, not only the problems of insufficient network bandwidth and low data rate can be solved, but also a flexible and high-speed interactive communication mechanism can be realized.

10 shows a block diagram of a device 1000 suitable for implementing example embodiments of the present disclosure. Device 1000 may be implemented at content display device 110, integrated communication device 120, media server 130 shown in FIG. 1, or a portion thereof.

As shown in FIG. 10, device 1000 includes one or more processors 1010, one or more memories 1020 coupled to processors 1010, a communication module 1040 coupled to processor 1010, and a communication interface (not shown) coupled to communication module 1040 Shows). The memory 1020 stores at least the program 1030 .

The communication module 1040 is used for two-way communication. Communication module 1040 has at least one antenna for facilitating communication. A communication interface may represent any interface necessary for communication.

The processor 1010 may be of any suitable type suitable for use in the local technical environment, and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal controllers (DSPs), and multicore-based processors architecture of the processor. Device 1000 may include multiple processors, such as application specific integrated circuit chips temporally slaved to a clock that synchronizes the master processor.

Memory 1020 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memory include, but are not limited to, read only memory (ROM) 1024, electrically programmable read only memory (EPROM), flash memory, hard disks, compact disks (CDs), digital video disks (DVDs), and other magnetic storage and/or optical storage. Examples of volatile memory include, but are not limited to, random access memory (RAM) 1022 and other volatile memory that will not be maintained during a power outage.

The computer program 1030 includes computer-executable instructions for execution by the associated processor 1010 . Program 1040 may be stored in ROM 1024 . Processor 1010 may perform any suitable actions and processes by loading program 1030 into RAM 1022.

Example embodiments of the present disclosure may be implemented with program 1030 so that device 1000 may perform any of the processes as discussed herein with reference to FIGS. 1-9. Example embodiments of the present disclosure may also be implemented by hardware or a combination of software and hardware.

In some embodiments, program 1030 may be tangibly embodied in a computer-readable medium, which may be included in device 1000 (such as memory 1020 ) or other storage device accessible by device 1000 . Device 1000 may load program 1030 from a computer-readable medium into RAM 1022 for execution. Computer readable media may include any type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, and the like.

In general, the various example embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device. While aspects of the embodiments of the present disclosure are illustrated or described as block diagrams, flowcharts, or using some other graphical representation, it is to be understood that the blocks, apparatus, systems, techniques, or methods described herein may be taken as non-limiting Examples are implemented in hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controllers or other computing devices, or some combination thereof.

The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. A computer program product includes computer-executable instructions, such as those included in program modules, executed in a device on a target real or virtual processor to implement the method as described above with reference to FIGS. 1-9 . Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data structures. In various example embodiments, the functionality of the program modules may be combined or divided among the described program modules. Machine-executable instructions for program modules may be executed within local or distributed devices. In a distributed facility, program modules may be located in both local and remote storage media.

Computer program code for implementing the methods of the present disclosure may be written in one or more programming languages. The computer program code may be provided to a processor of a general purpose computer, special purpose computer or other programmable data processing apparatus such that the program code, when executed by the computer or other programmable data processing apparatus, results in the flowchart and/or block diagrams The functions/operations specified in are implemented. The program code may execute entirely on the computer, partly on the computer, as a stand-alone software package, partly on the computer and partly on a remote computer or entirely on the remote computer or server.

In the context of the present disclosure, computer program code or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and the like.

Examples of signals may include electrical, optical, radio, acoustic, or other forms of propagated signals, such as carrier waves, infrared signals, and the like.

The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. Computer-readable media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any suitable combination thereof. More detailed examples of computer readable storage media include electrical connections with one or more wires, portable computer disks, hard disks, random memory access (RAM), read only memory (ROM), erasable programmable read only Memory (EPROM or flash memory), fiber optics, portable compact disc read only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

Additionally, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in a sequential order, or that all illustrated operations be performed to obtain desired results. In some cases, multitasking or parallel processing can be beneficial. Likewise, although the above discussion contains some specific implementation details, these should not be construed as limiting the scope of any invention or claims, but rather as descriptions of specific embodiments that may be directed to specific inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Various example embodiments of the technology have been described. As an alternative to or in addition to the above, the following examples are described. Features described in any of the examples below may be used with any of the other examples described herein.

Example 1. A content display device comprising: a deformation in a housing of the content display device adapted to reflect combined visible light and change a pattern characteristic of the combined visible light for positioning the content display a device; and a visible light communication (VLC) receiver, disposed in the housing at a position corresponding to the deformation, and configured to: convert an optical signal emitted in the combined visible light form into an optical signal corresponding to the combined visible light The content displays the content corresponding to the location of the device.

Example 2. The device of Example 1, wherein converting the light signal emitted in the combined visible light form into content corresponding to the location of the content display device comprises: receiving an optical signal corresponding to the location of the content display device converting the optical signal into an electrical signal; demodulating the electrical signal to obtain a content data signal; and displaying the content associated with the content data signal.

Example 3. The device of Example 1, wherein the deformation includes at least one of a raised feature and a recessed feature formed on a surface of the housing of the content display device.

Example 4. The apparatus of Example 1, wherein the pattern features include at least one of a stripe pattern, a spot pattern, a circle pattern, and a grid pattern.

Example 5. The device of Example 1, wherein the VLC receiver is configured to perform downlink data transmission using the first communication address, and wherein the content display device further comprises: a wireless signal transmitter configured to Uplink data transmission is performed using a second communication address different from the first communication address.

Example 6. An integrated communication device comprising: a visible light communication (VLC) transmitter configured to: modulate a content data signal into an optical signal; and transmit the optical signal in visible light; a combined light projector configured to : combining the visible light with pattern features to obtain combined visible light; and projecting the combined visible light.

Example 7. The device of Example 6, further comprising: at least one camera configured to: receive the combined visible light reflected by the content display device; and determine the combined visible light based on a change in a pattern characteristic of the reflected combined visible light The above content displays the location information of the device.

Example 8. The apparatus of example 7, wherein the VLC transmitter is further configured to obtain a content data signal corresponding to the determined location information from a media server.

Example 9. The device of Example 7, wherein determining the location information of the content display device comprises: comparing a change in the pattern feature to a reference pattern feature; and calculating the content display based on a result of the comparison the position information of the device in multiple degrees of freedom.

Example 10. The apparatus of Example 6, wherein the VLC emitter comprises a light emitting diode (LED) as a light source for the visible light.

Example 11. The apparatus of Example 6, wherein the pattern features include at least one of a stripe pattern, a spot pattern, a circle pattern, and a grid pattern.

Example 12. A media server comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the Media server: setting a first communication address for downlink data transmission and a second communication address different from the first communication address for uplink data transmission for the content display device according to Example 5.

Example 13. The media server of example 12, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the media server to: an integrated communication device transmits the first communication address; and in response to a request from the integrated communication device for a content data signal corresponding to location information of the content display device, providing the content data signal to the content display device An integrated communication device such that the integrated communication device transmits the content data signal to the first communication address.

Example 14. A content display system comprising: the content display device according to any one of Examples 1-5, the integrated communication device according to any one of Examples 6-11, and the content display device according to any one of Examples 12-13 The media server of any one.

Example 15. A method for displaying content, comprising receiving, from an integrated communications device, an optical signal emitted in combined visible light, the optical signal being transmitted based on location information of the content display device, the content displaying The location information of the device is determined using deformation of the housing of the content display device; and the light signal is converted into content corresponding to the location of the content display device.

Example 16. The method of Example 15, wherein converting the optical signal to content corresponding to the location of the content display device comprises: converting the optical signal to an electrical signal; demodulating the electrical signal to acquiring a content data signal; and displaying the content associated with the content data signal.

Example 17. The method of Example 15, wherein the deforming includes at least one of raised and recessed structures formed on a surface of the housing of the content display device.

Example 18. The method of Example 15, wherein the pattern features include at least one of a stripe pattern, a spot pattern, a circle pattern, and a grid pattern.

Example 19. The method of Example 15, further comprising: performing downlink data transmission using a first communication address; and performing uplink data transmission using a second communication address different from the first communication address.

Example 20. A method for communicating, comprising: modulating a content data signal into an optical signal; emitting the optical signal in visible light; combining the visible light with pattern features to obtain combined visible light; and projecting the Combined visible light.

Example 21. The method of Example 20, further comprising: receiving the combined visible light reflected by a content display device; and determining location information of the content display device based on a change in a pattern characteristic of the reflected combined visible light.

Example 22. The method of example 20, further comprising obtaining a content data signal corresponding to the determined location information from a media server.

Example 23. The method of Example 20, wherein determining the location information of the content display device comprises: comparing a change in the pattern feature to a reference pattern feature; and calculating the content display based on a result of the comparison the position information of the device in multiple degrees of freedom.

Example 24. The method of Example 20, wherein the pattern features include at least one of a stripe pattern, a spot pattern, a circle pattern, and a grid pattern.

Example 25. A method for communication, comprising: setting a first communication address for downlink data transmission with respect to the content display device of Example 5, and for uplink data transmission with the first communication address. A second communication address with a different communication address.

Example 26. The method of example 25, comprising: sending the first communication address to the integrated communication device of examples 6-11; and in response to a request from the integrated communication device for communication with the content display device The content data signal corresponding to the location information of the device is requested, and the content data signal is provided to the integrated communication device, so that the integrated communication device sends the content data signal to the first communication address.

Example 27. An apparatus for displaying content, comprising means for receiving, from an integrated communication device, an optical signal emitted in combined visible light, the optical signal being transmitted based on location information of the content display device, position information of the content display device is determined using deformation of a housing of the content display device; and means for converting the light signal into content corresponding to the position of the content display device .

Example 28. The apparatus of Example 27, wherein the means for converting comprises: means for converting the optical signal into an electrical signal; means for demodulating the electrical signal to obtain a content data signal; and for A component that displays the content associated with the content data signal.

Example 29. The apparatus of Example 27, wherein the deformation includes at least one of raised and recessed structures formed on a surface of the housing of the content display device.

Example 30. The apparatus of Example 27, wherein the pattern features comprise at least one of a stripe pattern, a spot pattern, a circle pattern, and a grid pattern.

Example 31. The apparatus of example 27, further comprising: means for performing downlink data transmission using a first communication address; and performing uplink using a second communication address different from the first communication address components for data transmission.

Example 32. An apparatus for communicating, comprising: means for modulating a content data signal into an optical signal; means for emitting the optical signal in visible light; combining the visible light with pattern features , to obtain means for combining visible light; and means for projecting said combined visible light.

Example 33. The apparatus of Example 32, further comprising: means for receiving the combined visible light reflected by a content display device; and for determining the content based on a change in a pattern characteristic of the reflected combined visible light A widget that displays location information for a device.

Example 34. The apparatus of example 32, further comprising means for obtaining a content data signal corresponding to the determined location information from a media server.

Example 35. The apparatus of Example 32, wherein the means for determining comprises: means for comparing a change in the pattern feature to a reference pattern feature; and calculating the A component of the position information of the content display device in multiple degrees of freedom.

Example 36. The apparatus of Example 32, wherein the pattern features include at least one of a stripe pattern, a spot pattern, a circle pattern, and a grid pattern.

Example 37. An apparatus for communicating, comprising: for setting a first communication address for downlink data transmission for the content display device of example 5, and for uplink data transmission and all A component with a second communication address that is different from the first communication address.

Example 38. The apparatus of Example 37, further comprising: means for sending the first communications address to the integrated communications device of Examples 6-11; and means for: responsive to the a request from the integrated communication device for a content data signal corresponding to the location information of the content display device, the content data signal is provided to the integrated communication device, so that the integrated communication device sends the information to the first The communication address transmits the content data signal.

Example 39. A computer-readable storage medium having stored thereon a computer program comprising instructions that, when executed by a processor on a device, cause the device to perform the methods according to Examples 15-19. The method of any one.

Example 40. A computer-readable storage medium having stored thereon a computer program comprising instructions that, when executed by a processor on a device, cause the device to perform the methods according to Examples 20-24. The method of any one.

Example 41. A computer-readable storage medium having stored thereon a computer program comprising instructions that, when executed by a processor on a device, cause the device to perform the methods according to Examples 25-26. The method of any one.

Claims (32)

1. A content display device, comprising:

a deformation in a housing of the content display device adapted to reflect combined visible light and to change a pattern feature of the combined visible light for positioning the content display device; and

a Visible Light Communication (VLC) receiver disposed in the housing at a position corresponding to the deformation and configured to:

Converting the light signal emitted in the form of the combined visible light into content corresponding to the location of the content display device.

2. The device of claim 1, wherein converting the light signal emitted in the combined visible light form to content corresponding to the location of the content display device comprises:

receiving the light signal corresponding to a location of the content display device;

converting the optical signal into an electrical signal;

demodulating the electrical signal to obtain a content data signal; and

displaying the content associated with the content data signal.

3. The device of claim 1, wherein the deformation comprises at least one of a raised structure and a recessed structure formed on a surface of the housing of the content display device.

4. The apparatus of claim 1, wherein the pattern features comprise at least one of a stripe pattern, a blob pattern, a circle pattern, and a grid pattern.

5. The device of claim 1, wherein the VLC receiver is configured to perform downlink data transmissions using a first communication address, and wherein the content display device further comprises:

a wireless signal transmitter configured to perform uplink data transmission using a second communication address different from the first communication address.

6. An integrated communication device, comprising:

a Visible Light Communication (VLC) transmitter configured to:

modulating the content data signal into an optical signal; and

emitting the optical signal in the form of visible light;

a combined light projector configured to:

combining the visible light with pattern features to obtain combined visible light; and

projecting the combined visible light.

7. The apparatus of claim 6, further comprising:

at least one camera configured to:

receiving the combined visible light reflected by a content display device; and

determining location information of the content display device based on a change in a pattern feature of the reflected combined visible light.

8. The device of claim 7, wherein the VLC transmitter is further configured to:

acquiring a content data signal corresponding to the determined location information from a media server.

9. The device of claim 7, wherein determining location information of the content display device comprises:

comparing the change in the pattern feature to a reference pattern feature; and

based on a result of the comparison, the positional information of the content display device in a plurality of degrees of freedom is calculated.

10. The apparatus of claim 6, wherein the VLC transmitter comprises a Light Emitting Diode (LED) as a light source of the visible light.

11. The apparatus of claim 6, wherein the pattern features comprise at least one of a stripe pattern, a blob pattern, a circle pattern, and a grid pattern.

12. A media server, comprising:

at least one processor; and

at least one memory including computer program code;

the at least one memory and the computer program code configured to, with the at least one processor, cause the media server to:

setting a first communication address for downlink data transmission and a second communication address different from the first communication address for uplink data transmission for the content display apparatus according to claim 5.

13. The media server of claim 12, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the media server to:

sending the first communication address to the integrated communication device of claims 6-11; and

In response to a request from the integrated communication device for a content data signal corresponding to the location information of the content display device, providing the content data signal to the integrated communication device to cause the integrated communication device to transmit the content data signal to the first communication address.

14. A content display system, comprising: the content display device according to any one of claims 1-5, the integrated communication device according to any one of claims 6-11, and the media server according to any one of claims 12-13.

15. A method for displaying content, comprising:

receiving, from an integrated communication device, an optical signal emitted in a combined visible light form, the optical signal transmitted based on position information of the content display device, the position information of the content display device determined using deformation of a housing located at the content display device; and

converting the light signal into content corresponding to a location of the content display device.

16. The method of claim 15, wherein converting the light signal into content corresponding to a location of the content display device comprises:

Converting the optical signal into an electrical signal;

demodulating the electrical signal to obtain a content data signal; and

displaying the content associated with the content data signal.

17. The method of claim 15, wherein the deformation comprises at least one of a raised structure and a recessed structure formed on a surface of the housing of the content display device.

18. The method of claim 15, the pattern features comprising at least one of a stripe pattern, a blob pattern, a circle pattern, and a grid pattern.

19. The method of claim 15, further comprising:

performing downlink data transmission using the first communication address; and

performing uplink data transmission using a second communication address different from the first communication address.

20. A method for communication, comprising:

modulating the content data signal into an optical signal;

emitting the optical signal in the form of visible light;

combining the visible light with pattern features to obtain combined visible light; and

projecting the combined visible light.

21. The method of claim 20, further comprising:

receiving the combined visible light reflected by a content display device; and

Determining location information of the content display device based on a change in a pattern feature of the reflected combined visible light.

22. The method of claim 20, further comprising:

acquiring a content data signal corresponding to the determined location information from a media server.

23. The method of claim 20, wherein determining location information of the content display device comprises:

comparing the change in the pattern feature to a reference pattern feature; and

based on a result of the comparison, the positional information of the content display device in a plurality of degrees of freedom is calculated.

24. The method of claim 20, the pattern features comprising at least one of a stripe pattern, a blob pattern, a circle pattern, and a grid pattern.

25. A method for communication, comprising:

for the content display device according to claim 5, setting a first communication address for downlink data transmission, and setting a second communication address different from the first communication address for uplink data transmission.

26. The method of claim 25, further comprising:

sending the first communication address to the integrated communication device of claims 6-11; and

In response to a request from the integrated communication device for a content data signal corresponding to the location information of the content display device, providing the content signal to the integrated communication device to cause the integrated communication device to transmit the content data signal to the first communication address.

27. An apparatus for displaying content, comprising:

means for receiving from an integrated communication device an optical signal emitted in a combined visible form, the optical signal transmitted based on location information of the content display device, the location information of the content display device determined with a deformation of a housing located at the content display device; and

means for converting the light signal into content corresponding to a location of the content display device.

28. An apparatus for communication, comprising:

means for modulating the content data signal into an optical signal;

means for emitting the optical signal in the form of visible light;

means for combining the visible light with pattern features to obtain combined visible light; and

means for projecting the combined visible light.

29. An apparatus for communication, comprising:

Means for setting a first communication address for downlink data transmission and a second communication address different from the first communication address for uplink data transmission for the content display device according to claim 5.

30. A computer-readable storage medium having stored thereon a computer program comprising instructions which, when executed by a processor on a device, cause the device to perform the method of any one of claims 15-19.

31. A computer-readable storage medium having stored thereon a computer program comprising instructions which, when executed by a processor on a device, cause the device to perform the method of any one of claims 20-24.

32. A computer-readable storage medium having stored thereon a computer program comprising instructions which, when executed by a processor on a device, cause the device to perform the method of any one of claims 25-26.

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