CN108600827A - A kind of wireless home theater - Google Patents

Abstract

The present invention relates to a wireless home theater, and particularly proposes a home theater system, including: an audio decoding device; a wireless transceiver electrically connected to the audio decoding device; and one or more than one wireless speakers, which receive audio from the wireless transceiver an audio signal; wherein the sound mode is determined based at least in part on one or more external wireless speakers.

Description

A wireless home theater

technical field

The invention relates to the field of electrical appliances, in particular to a wireless home theater.

Background technique

As the entertainment center of the family, the television is undergoing an exciting transformation. With 2K, 4K and other high-definition TVs, large screens over 50 inches, OLED TVs, laser TVs and other new products gradually entering the home, people can now enjoy a visual feast at home.

However, what cannot match the visual feast is the sound experience brought by these new TVs. Newer TVs don't even sound as good as they did in the days of CRT TVs, thanks to thinner bodies. Although the existing home theater can improve the sound effect, the overly complicated wiring and high cost discourage most families. In the prior art, this problem has a long history, but has not been solved. People can only continue to endure poor sound effects while enjoying high-quality film and television content.

Contents of the invention

Aiming at the technical problems existing in the prior art, the present invention proposes a home theater system, comprising: an audio decoding device; a wireless transceiver, which is electrically connected to the audio decoding device; and one or more than one wireless speakers, which receive audio from An audio signal from a wireless transceiver; wherein the sound mode is determined based at least in part on one or more external wireless speakers.

The above-mentioned home theater system, wherein the audio decoding device is a TV, a projector, a set-top box, a TV box, a tablet or a mobile phone.

One or more home theater systems as described above, wherein the sound mode is further determined based at least in part on one or more wired speakers electrically connected to the audio decoding device and/or speakers of the audio decoding device.

One or more home theater systems as described above, wherein the audio decoding device comprises: an audio decoder, which decodes audio content; and an audio manager, which processes the decoded audio signal from the audio decoder to obtain an audio mode conforming multiple channel audio signals, and forward at least some of the multiple channel audio signals to a wireless transceiver.

One or more home theater systems as described above, wherein the audio decoding device further comprises: a first two-way communication interface, which communicates with the wireless transceiver; wherein the audio manager transmits at least part of the The multiple channel audio signals, and receiving device information of one or more wireless speakers from the wireless transceiver.

One or more home theater systems as described above, wherein the first communication interface is a USB interface.

One or more home theater systems as described above, wherein the audio management module includes an audio information table, wherein the audio information table includes information of one or more wireless speakers and/or wired speakers and/or speakers of the audio decoding device.

One or more home theater systems as described above, wherein the audio encoding device includes: an audio decoding and post-processing module configured to decode audio content and perform post-processing; a channel management module configured to process audio content from The decoding and post-processing module generates a plurality of channel audio signals in accordance with the audio mode after decoding the audio signal; an output management module, which is configured to forward multiple channel audio signals; and a configuration module, which determines the audio signal according to the audio information table. mode and set the audio decoding and post-processing module, channel management module, and output management module.

One or more home theater systems as described above, wherein the audio decoding device includes an audio decoding chip and/or a memory chip, wherein the audio decoder, audio manager, audio decoding and post-processing module, channel management module, output management The modules and/or configuration modules run on audio decoding chips and/or memory chips.

In the above home theater system, the device information includes one or more of device identification information, device parameter information, and device status information.

One or more home theater systems as above, wherein the audio manager includes a device information library.

One or more home theater systems as described above, wherein the wireless transceiver includes: a second two-way communication interface, which receives an audio signal from an audio decoding device and reports device information of one or more wireless speakers; a processor, It performs operations related to wireless transmission protocols and sound signal processing; memory, which buffers the audio signal to be played and stores temporary data during operation; signal converter, which converts the audio signal to be played into the form of a radio frequency wireless signal; a radio frequency front end, which increases the power of a transmitted signal or amplifies a received signal; and a first antenna.

One or more home theater systems as described above, wherein the wireless speakers include: a second antenna; a signal processor that receives audio signals from the wireless transceiver and reports to the wireless transceiver one or more wireless speakers information; a power amplifier, which amplifies the audio signal from the wireless transceiver and drives the speaker; and the speaker.

One or more home theater systems as above, wherein the wireless speaker transmits device information for the wireless speaker in response to the wireless transceiver.

According to another aspect of the present invention, a method of constructing a home theater is provided, comprising: identifying one or more wireless speakers in a system; and determining an acoustic mode of the home theater based at least in part on the one or more wireless speakers.

The above-mentioned method includes: determining the sound mode of the home theater based at least in part on the audio decoding device's own speaker and/or device information of one or more wired speakers connected to the audio decoding device in a wired manner.

One or more methods as described above, further comprising: processing the decoded audio signal to obtain audio signals of a plurality of channels conforming to the acoustic mode; and forwarding part of the audio signals of the plurality of channels to one or More than one wireless speaker.

One or more of the above methods further include: setting a decoding method of the audio content according to the sound mode.

One or more methods as above, further comprising: forwarding the decoded audio signal to a wireless transceiver; and sending the decoded audio signal to one or more wireless speakers via the wireless transceiver.

One or more methods as above, wherein the wireless transceiver is electrically connected to the audio decoding device through a USB interface.

One or more methods as described above, further comprising: establishing an audio information table, which includes device information of one or more wireless mailboxes and/or one or more wireless mailboxes and/or speakers of the audio decoding device itself .

According to another aspect of the present invention, a method for playing sound using multiple playback devices is proposed, including: decoding audio content and outputting a first plurality of channel audio signals; wherein, between the multiple channels and the multiple playback devices The corresponding relationship is based on the sound mode, and at least one or more than one playback device is a wireless speaker; the audio signals of at least some channels in the first plurality of channel audio signals are sent to the wireless transceiver; The audio signals of at least some channels in the audio signals of multiple channels are forwarded to one or more wireless speakers.

The method as above, wherein the sound pattern is based at least in part on an sound information table; wherein the sound information table includes device information for one or more wireless speakers.

One or more methods as described above, further comprising: updating the sound mode according to the change of one or more playback devices; decoding the audio content and outputting the second plurality of channel audio signals according to the updated sound mode; The audio signals of at least some channels of the two plurality of channel audio signals are sent to the wireless transceiver.

One or more methods as described above, wherein the sound information table further includes device information of one or more wired speakers and/or speakers of the audio decoding device itself.

One or more methods as described above, further comprising sending audio signals of at least some channels in the first or second plurality of channel audio signals to wired speakers and/or speakers of the audio decoding device itself.

According to another aspect of the present invention, a home theater is proposed, including: a wireless transceiver, which is suitable for electrical connection with an audio decoding device; and one or more wireless speakers, which receive audio signals from the wireless transceiver; wherein, An audio mode for the home theater is determined based at least in part on the one or more wireless speakers.

The home theater as above, wherein the audio signal received by the wireless transceiver from the audio decoding device is determined by the sound mode.

One or more home theaters as described above, wherein the sound mode is further determined based at least in part on a wired speaker connected to the audio decoding device and/or a speaker of the audio decoding device.

One or more home theaters as described above, wherein the wireless transceiver includes: a second two-way communication interface, which receives an audio signal from an audio decoding device and reports device information of one or more wireless speakers; a processor, which Perform operations related to wireless transmission protocols and sound signal processing; memory, which buffers the audio signal to be played and stores temporary data at runtime; signal converter, which converts the audio signal to be played into the form of a radio frequency wireless signal; radio frequency a front end, which boosts the power of a transmitted signal or amplifies a received signal; and a first antenna.

One or more home theaters as described above, wherein the second communication interface is a USB interface.

One or more home theaters as described above, wherein the wireless speakers include: a second antenna; a signal processor that receives audio signals from the wireless transceiver and reports device information of one or more wireless speakers to the wireless transceiver ; a power amplifier, which amplifies the audio signal from the wireless transceiver and drives the speaker; and the speaker.

One or more home theaters as above, wherein the signal processor transmits device information of the wireless speaker in response to the wireless transceiver.

According to another aspect of the present invention, a home theater system is proposed, including: an audio decoding device; one or more audio decoding device speakers, which are electrically connected to the audio decoding device; and one or more wired speakers, which are connected to the audio decoding device The audio decoding device is electrically connected; wherein the sound mode is determined based at least in part on one or more speakers of the audio decoding device and/or one or more wired speakers.

The above-mentioned home theater system, wherein the audio decoding device is a TV, a projector, a set-top box, a TV box, a tablet or a mobile phone.

The home theater system as described above includes: a wireless transceiver electrically connected to an audio decoding device; and one or more wireless speakers receiving audio signals from the wireless transceiver; wherein, further at least partially based on one or more Determines the audio mode for an external wireless speaker.

According to another aspect of the present invention, a method of constructing a home theater is provided, comprising: identifying one or more wired speakers electrically connected to an audio decoding device; A wired speaker determines the sound mode of the home theater.

The method as described above, comprising: identifying one or more wireless speakers in the system; and further determining an audio mode of the home theater based at least in part on the one or more wireless speakers.

Description of drawings

Below, preferred embodiment of the present invention will be described in further detail in conjunction with accompanying drawing, wherein:

FIG. 1 is a schematic diagram of a wireless home theater system according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the TV structure of a home theater according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a wireless transceiver of a home theater according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a wireless speaker of a home theater according to an embodiment of the present invention

Fig. 5 is a schematic diagram of the TV structure of a home theater according to another embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a TV in a home theater according to an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a USB interface wireless transceiver according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a home theater system according to another embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a home theater system according to another embodiment of the present invention;

Figure 10 is a method of constructing a home theater according to an embodiment of the present invention; and

Fig. 11 is a method for playing sound according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the following detailed description, reference is made to the accompanying drawings which are included in the specification and which illustrate specific embodiments of the application and which are included in this application. In the drawings, like reference numerals describe substantially similar components in different views. Various specific embodiments of the present application are described in sufficient detail below, so that those of ordinary skill in the art can implement the technical solutions of the present application. It should be understood that other embodiments may also be utilized or structural, logical or electrical changes may be made to the embodiments of the present application.

According to one embodiment of the present invention, a wireless home theater is proposed. Users only need simple operations without any professional knowledge to expand and connect multiple external speakers for audio decoding equipment such as TVs, thereby greatly improving the sound experience.

The "wireless home theater" mentioned in this article includes wireless transceivers and wireless speakers, not audio and video decoding equipment.

The "wireless home theater system" mentioned in this article includes audio and video decoding equipment, wireless transceivers, and wireless speakers.

The audio and video decoding devices mentioned in this article include TVs with audio and video decoding functions, projectors, set-top boxes, TV boxes, and even tablet computers, mobile phones and other devices.

Fig. 1 is a schematic diagram of a wireless home theater system according to an embodiment of the present invention. As shown in Figure 1, the wireless home theater of the present invention is used in conjunction with a TV. Specifically, the wireless home theater system 100 includes a television 101, a wireless transceiver 102, and wireless speakers 103-108. The television 101 is electrically connected to the wireless transceiver 102 . The wireless transceiver 102 obtains audio signals to be played from the television 101 . The wireless transceiver 102 communicates wirelessly with the wireless speakers 103-108. The wireless transceiver 102 sends the audio signal to be played to the wireless speakers 103-108. The wireless speakers 103-108 play sounds according to the received audio signals.

According to an embodiment of the present invention, the wireless speakers may include a left front speaker FL, a right front speaker FR, a center speaker C, a left rear speaker RL, a right rear speaker RR, a left surround speaker SL, and a right surround speaker SR , low-frequency effect speaker LFE, subwoofer SW, overhead left front speaker TFL, overhead right front speaker TFR, overhead left rear speaker TRL, overhead right rear speaker TRR, upper left front speaker FHL, upper right front speaker One or more speakers in the FHR, the upper left front speaker FHL, the upper right front speaker FHR, the left overhead center speaker TML, the right overhead center speaker FHR, and the like.

Figure 1 schematically shows a standard 5.1-channel multiple wireless speaker configuration. Wireless speakers 103-108 include front left speakers FL, front right speakers FR, center speakers C, rear left speakers RL, rear right speakers RR, and subwoofers SW.

In order to achieve the best sound effect, each speaker plays the sound of its own channel. The TV 101 identifies the wireless speakers 103-108 and sends the audio signal of the corresponding channel to each wireless speaker 103-108 through the wireless transceiver 102 for playback. In some embodiments, a speaker may contain more than one channel. Depending on the speaker design, a speaker can reproduce one or more independent channels. In the following description of the present invention, a sound box is taken as an example as a description object, and those skilled in the art should understand that the sound box can also be replaced by a sound channel to form different embodiments.

Fig. 2 is a schematic structural diagram of a home theater TV according to an embodiment of the present invention. As shown in FIG. 2 , the TV 200 includes an audio decoder 201 , an audio manager 202 , TV speakers 203 and 204 , and a two-way communication interface 205 .

The audio decoder 201 decodes audio content encoding in any multi-channel compression format, including but not limited to Dolby, DTS, AAC, etc. Sources of audio content include Internet WAN, Internet local network, local storage, network storage, HDMI input, DTV input, mode input, etc.

The audio manager 202 controls the audio decoder 201 to decode audio content according to the sound mode. The audio manager 202 processes the decoded audio signal to obtain a multi-channel audio signal conforming to the acoustic mode. The audio manager 202 further sends at least a portion of the multi-channel audio signal to the bi-directional communication interface 205 . According to an embodiment of the present invention, the audio manager 202 may also send part of the audio signals of multiple channels, such as audio signals of one or several channels, to the TV speakers 203 and 204 . The two-way communication interface 205 of the television 200 is electrically connected with the wireless transceiver. Using the two-way communication interface 205, the TV 200 realizes two-way communication with the wireless speaker through the wireless transceiver: sending the audio signal to be played, obtaining the device information of the wireless speaker, and realizing the control of the wireless speaker.

Fig. 3 is a schematic structural diagram of a wireless transceiver of a home theater according to an embodiment of the present invention. Those skilled in the art should understand that what is shown in FIG. 3 is an example of a wireless transceiver. In some other examples of the present invention, these modules or functions may not all exist or be integrated together according to actual conditions. As shown in the figure, the wireless transceiver 300 includes a bidirectional communication interface 301 , a processor 302 , a memory 303 , a signal converter 304 , a radio frequency front end 305 and a transceiver antenna 306 .

The two-way communication interface 301 performs two-way communication with the TV, and receives audio signals to be played from the TV. Further, through the two-way communication interface 301, control information may also be received from the TV or device information of the wireless sound box may be reported to the TV. The processor 302 performs operations related to wireless transmission protocols and necessary sound signal processing. The memory 303 is used for buffering audio signals to be played and storing temporary data during operation. The signal converter 304 converts the form of the audio signal to be played and the radio frequency wireless signal to be suitable for transmission and reception by the antenna. The radio frequency front end 305 is used to increase the power of the transmitted signal or amplify the received signal. Those skilled in the art should understand that the wireless transceiver 300 has two functions of signal sending and receiving. In the two different working modes of sending and receiving, the functional structure of the wireless transceiver is the same, and the transmission direction of the signal is opposite. The wireless transceiver 300 of the present invention supports full-duplex mode. According to an embodiment of the present invention, the wireless transceiver 300 may further include an audio signal interface 307 for receiving audio input from other devices or audio sources.

Fig. 4 is a schematic structural diagram of a wireless speaker for a home theater according to an embodiment of the present invention. As shown in the figure, the wireless speaker 400 includes an antenna 401 , a signal processor 402 , a power amplifier 403 and a speaker 404 . The signal processor 402 receives the audio signal to be played and/or the control signal from the wireless transceiver, and forwards it to the power amplifier 403 . The signal processor 402 is also configured to report the device information of the wireless speaker to the wireless transceiver. The power amplifier 403 amplifies the audio signal to be played and drives the speaker 404 to emit sound. The wireless speaker 400 further includes a power supply 405 for supplying power to various parts of the wireless speaker.

According to an embodiment of the present invention, the TV, the wireless transceiver and the wireless sound box shown in FIGS. 2-4 can constitute a home theater system of the present invention. Through the wireless transceiver 300, the audio manager 202 of the TV 200 can obtain the reported device information of each wireless speaker, and set the audio decoder 201 accordingly. Specifically, when the wireless speaker 400 is connected to the home theater system, the wireless speaker 400 communicates with the wireless transceiver 300 and reports its own device information. These device information can be only simple device identification information, and can also include specific device parameter information such as the brand, model, and parameters of the wireless speaker device, and can also include device status information, including but not limited to information such as battery power and wireless signal strength. The wireless transceiver 300 sends the device information of the wireless speaker 400 to the audio manager 202 of the TV 200 . The audio manager 202 summarizes the device information of all wireless speakers, and then determines the sound mode of the current home theater system. According to an embodiment of the present invention, the speaker of the TV itself, the wired sound box connected to the TV can be combined with the wireless sound box to form a combined sound mode. The audio manager 202 summarizes device information of all wireless speakers, wired speakers and/or speakers of the TV itself, and then determines the sound mode of the current home theater system.

The audio modes of the home theater system of the present invention include but are not limited to the following modes:

According to an embodiment of the present invention, the audio manager 202 includes a sound information table 206 and a device information library 207 . The audio manager 202 searches the device parameters of the wireless speaker in the device information library 207 according to the wireless speaker device information from the wireless transceiver 300 , and adds the retrieved information into the sound information table 206 . According to an embodiment of the present invention, the wireless speaker device information received by the audio manager 202 from the wireless transceiver already includes parameter information; the audio manager 202 can directly add the device information to the audio information table 206 without searching. According to an example of the present invention, the sound information table may include device information of the speakers of the television 200 itself. According to an example of the present invention, the audio information table may include device information of wired speakers connected to the TV 200 in a wired manner.

Different audio equipment has different frequency response parameters, power parameters, sampling rate support range, transmission delay response time and other characteristics. The device information in the sound information table is beneficial for the audio manager 202 to determine the best sound mode of the current home theater system and perform appropriate parameter configuration. Specifically, the audio manager 202 determines the sound mode according to the number of wireless speakers and/or wired speakers and/or TV speakers in the sound information table 206 and the device information of each device. The device information includes one or more of the following information: brand, type, frequency response parameters of speakers, power parameters, sampling rate support range, transmission delay time, etc.

For example, when the audio information table includes 2 TV speakers and 3 wireless speakers, one of which is suitable for playing low-frequency sound, and the other two wireless speakers are suitable for playing mid-frequency sound, then the appropriate audio mode is combined 4.0 mode . According to one embodiment of the present invention, the user can specify the sound mode of the home theater.

The audio manager 202 specifies a channel for the wireless speaker and/or the wired speaker and/or the TV speaker in the sound information table 206 according to the determined sound mode. The audio manager 202 sets the audio decoder 201 according to the sound mode. The audio manager 202 processes the audio signals decoded by the audio decoder 201 to obtain audio signals of FL, FR, RL, and RR channels. Further, the audio manager 202 forwards the audio signals of the FL and FR channels to the TV speakers 203 and 204 for playback; Speaker 400 playback. Thus, the user can enjoy the sound effect of the 4.0 mode, which greatly improves the sound experience.

According to an embodiment of the present invention, a schematic audio information table example is as follows:

Sound Mode 4.0 name source parameter SL Wireless speaker 1 wireless transceiver -- SR Wireless speaker 2 wireless transceiver -- FL TV speaker 1 TV Line 1 -- FR TV speaker 2 TV Line 2 --

The first column in the above table shows the audio mode determined by the audio manager and the corresponding channels; the second column in the table shows the name of each audio device; the third column in the table shows each audio device source; the fourth column in the table schematically indicates that the audio information table also includes some parameters of each audio device (not specifically shown). Those skilled in the art should understand that the above audio information table is only illustrative. In practical applications, the audio information table can be any form of data collection. For example, the audio information table may have form data structures such as arrays, linked lists, two-dimensional tables, and graphs, and may also non-explicitly exist in functional structures such as data structures, storage structures, functions, and classes. The audio information table may include device information and/or parameters of one or more audio devices. In a simplified example, the audio information table may only include the names of each audio device, and the audio manager may determine the audio mode only based on the number and names of the audio devices.

Fig. 5 is a schematic structural diagram of a home theater TV according to another embodiment of the present invention. Those skilled in the art should understand that what is described in FIG. 5 is an example of a smart TV. In some other examples of the present invention, these modules or functions may not all exist or be integrated together according to actual conditions.

As shown in the figure, the TV 500 includes an audio decoding and post-processing module 501 , a channel management module 502 , a channel post-processing module 503 , an output management module 504 , a configuration module 505 , a two-way communication interface 508 , and TV speakers 509 and 510 .

The audio decoding and post-processing module 501 is used for decoding and necessary post-processing of the input audio content. Sources of audio content include Internet WAN, Internet local network, local storage, network storage, HDMI input, DTV input, mode input, etc. The audio decoding and post-processing module 501 decodes audio codes in any multi-channel compression format, including but not limited to Dolby, DTS, AAC and so on.

The channel management module 502 is used to process the decoded and post-processed multi-channel audio signal, so that relevant parameters such as the number of channels and frequency response meet the requirements of playback devices such as wireless speakers, wired speakers, or TV speakers. The channel post-processing module 503 is optional, and it is used for further processing the audio signal to add necessary sound effects. The output management module 504 is used for forwarding the audio signal of each channel to the corresponding playback device.

The configuration module 505 establishes the audio information table 506 according to the device information of the wireless speaker from the two-way communication interface 508, the device information of the wired speaker from other interfaces, and/or the device information of its own speaker, and determines the audio mode of the current home theater system accordingly . According to the sound mode, the configuration module 505 sets the audio decoding and post-processing module 501, the channel management module 502, the channel post-processing module 503, and the output management module 504 to realize the decoding and processing of the audio content in the sound mode. The device information library 507 is used to store the information of the local device and other devices. This information can be used to implement functions such as device identification, authentication, and configuration.

For example, for the audio mode 4.0, the configuration module 505 sets the working parameters of the audio decoding and post-processing module 501, the channel management module 502, the channel post-processing module 503, and the output management module 504 according to the audio mode 4.0. The audio decoding and post-processing module 501 is configured to decode audio content, and the channel management module 502 is configured to generate 4-channel audio signals. After these audio signals are processed by the channel post-processing module 503, the FL and FR channels are forwarded to the TV speakers 509 and 510 by the output management module 504, and broadcast by the TV speakers 509 and 510. The output management module 504 is configured The RL and RR channel audio signals are forwarded to the wireless transceiver through the two-way communication interface 508, and then forwarded to the wireless speaker, and played by the wireless speaker.

According to an embodiment of the present invention, the audio decoding and post-processing module 501 can be considered as an example of an audio decoder, and the channel management module 502, the channel post-processing module 503, the output management module 504 and the configuration module 505 can be Think of it as an instance of the audio manager.

Fig. 6 is a schematic structural diagram of a home theater TV according to an embodiment of the present invention. FIG. 6 shows an exemplary chip structure of a TV. As shown in the figure, TV 600 includes audio and video decoding chip 601, one or more memory chips 602, memory 603, TV signal interface 604, infrared/WiFi/Bluetooth interface 605, USB interface 606, HDMI interface 607, audio and video output interface 608. Optionally, television 600 includes a GPU 609 . Audio and video decoding chip 601 , memory chip 602 and/or memory 603 (and GPU 609 ) form the processing system of TV 600 . Further, the TV 600 includes a screen driving module 610 and a power supply module 611 . According to an embodiment of the present invention, an example of the audio decoder or the audio decoding and post-processing module 501 of the present invention is the audio decoding core of the audio and video decoding chip 601 . The audio manager or channel management module 502, channel post-processing module 503, output management module 504 and configuration module 505 of the present invention are an example of software running on the processing system of the TV 600, which manages audio decoding and the forwarding of the decoded audio signal.

According to an embodiment of the present invention, the USB interface 606 serves as an interface for connecting with a wireless transceiver. Although the TV 600 already includes an infrared/WiFi/Bluetooth interface 605, some of these interfaces that come with the TV 600 do not support QoS, and some do not support functions such as option transmission, so a very large adjustment must be made, which will increase the cost . Furthermore, since most audio decoding chips 601 support audio devices with USB interfaces, such as USB speakers. Therefore, in this embodiment, the transmission of audio signals from the audio decoding chip to the USB interface can utilize this existing standard, thereby simplifying the configuration of modules such as configuration modules (such as device identification) and output management modules in audio function modules. design. More importantly, due to the adoption of the USB interface, the wireless transceiver can be easily plugged and connected to or separated from the TV, thus bringing very high flexibility. For example, when replacing a TV, it is convenient to plug the wireless transceiver into the new TV. Furthermore, the home theater combined with wireless transceiver and wireless speakers can be used in conjunction with other audio decoding devices such as TVs, projectors, and TV boxes.

Fig. 7 is a schematic structural diagram of a USB interface wireless transceiver according to an embodiment of the present invention. As shown in FIG. 7 , the wireless transceiver 700 includes a standard USB interface 701 , a USB audio module 702 , a high-speed memory 703 , a wireless module 704 and an antenna 705 . The wireless transceiver 700 is connected to the USB interface on the TV through a standard USB interface 701 . The USB audio module 702 communicates with the television. The USB audio module includes a USB audio class (USB Audio Class), which includes all audio streams and audio control functions compatible with the USB interface. Thus, the TV automatically recognizes the USB wireless transceiver as a USB audio device, and uses the interface defined by the USB audio class to communicate with the USB wireless transceiver. Because the USB interface has a bandwidth much higher than the audio demand, it can transmit extremely high-quality (high sampling rate, high encoding rate, multi-channel) audio data. The USB audio module 702 obtains the audio signal to be sent from the TV through the USB interface 701 . The USB audio module 702 creates a speaker configuration table 706 and creates one or more queues in the high-speed memory 703, wherein each queue corresponds to a wireless speaker. According to an embodiment of the present invention, the wireless module 704 is a WiFi module supporting Qos function, a high-bandwidth infrared module, or a multi-channel Bluetooth module, or other wireless modules. Those skilled in the art should understand that, in addition to communication protocols such as WiFi, infrared or Bluetooth, other existing or self-defined communication protocols can also be applied to the wireless module 704, so as to realize the communication between the wireless transceiver and the wireless speaker. According to an embodiment of the present invention, the USB audio module can be a single chip or include a USB chip and a processor for USB communication. According to an embodiment of the present invention, the wireless module and the USB audio module or the processor can be integrated into the same chip instead of an independent wireless communication module.

Fig. 8 is a schematic structural diagram of a home theater system according to another embodiment of the present invention. In the embodiment of Fig. 8, a projector is used instead of a TV. Similar to the previous embodiments, in the embodiment of FIG. 8 , the projector 801 includes an audio decoder, an audio manager and a communication interface such as a USB interface. The wireless transceiver 802 communicates with the projector 801 through a communication interface such as a USB interface. The wireless transceiver 802 communicates wirelessly with one or more wireless speakers 803 .

Fig. 9 is a schematic structural diagram of a home theater system according to another embodiment of the present invention. In the embodiment of FIG. 9 , the audio and video decoding chip in the TV is replaced by a TV box, and the TV in the embodiment of FIG. 9 can only be used for screen display. Similar to the previous embodiments, in the embodiment of FIG. 9 , the TV box 901 includes an audio decoder, an audio manager and a communication interface such as a USB interface. The wireless transceiver 902 communicates with the TV box 901 through a communication interface such as a USB interface. The wireless transceiver 902 communicates wirelessly with one or more wireless speakers 903 .

As can be seen from the above description, no matter what kind of audio decoding device, such as a TV, projector or TV box, or even a tablet or mobile phone, it can cooperate with the home theater of the present invention (including wireless transceiver and wireless speaker) Use, and form the home theater system of the present invention. However, the home theater of the present invention can omit the audio decoding chip and the independent power amplifier, thereby greatly reducing the cost of the home theater of the present invention. Furthermore, the audio manager of the present invention is also configured in the audio decoding device, that is, it uses the data processing capabilities of the TV, projector, TV box and other equipment itself, which further reduces the cost of the home theater of the present invention . Further, taking the home theater with USB wireless transceiver as an example, the present invention does not add any hardware devices to audio decoding devices such as TVs, projectors or TV boxes, or even flat panels or mobile phones, nor does it increase audio decoding. The cost of the equipment. According to estimates, the cost of the home theater of the present invention is only 1/4 of the cost of existing home theaters on the market.

On the other hand, the home theater system of the present invention is very convenient to use. The user only needs to turn on the power of the wireless speaker, insert the wireless transceiver into the communication interface of the audio decoding device such as the TV, projector or TV box, such as the USB interface, and the audio decoding device such as the TV, projector or TV box will automatically Identify one or more wireless speakers in the home theater system, use or not use the speakers of audio decoding devices such as TVs, and automatically determine the best sound mode without user participation in the whole process. Due to the use of wireless transceivers and wireless speakers, the complicated wiring process is eliminated. Users can enjoy the high-quality sound experience brought by the home theater system of the present invention without any professional knowledge. This is undoubtedly a revolution in the home theater system.

According to an embodiment of the present invention, the video decoding device in the home theater system of the present invention is an Android platform, an ISO platform, or other multimedia intelligent systems developed based on Linux and Unix open source systems, such as systems developed by Samsung or LG based on Linux. These platforms are widely used operating systems in audio decoding devices such as smart TVs, projectors, TV boxes, tablets and mobile phones. Different from the windows platform, these platforms run more efficiently, the system is more stable, and the support for hardware is better. For example, the openness of the Android system makes it easier to be configured to implement the audio management function of the present invention, and its good user interaction also makes it easier for users to manage it.

According to one embodiment of the present invention, the audio decoding device software of the home theater of the present invention is installed on audio decoding devices such as smart TVs, projectors, TV boxes, tablets, and mobile phones, so as to implement the audio manager of the present invention on it . According to an embodiment of the present invention, the audio management function on the audio decoding device can be managed through an application App installed on a mobile phone or a tablet computer.

Those skilled in the art should understand that although the technical solutions of the present invention are described in the above embodiments in the form of a wireless transceiver and a wireless speaker, this does not represent an implementation limitation. In fact, the present invention can also be a semi-wireless system. According to an embodiment of the present invention, in addition to its own speakers, for example, an audio decoding device of a television further includes one or more sound boxes connected to it in a wired manner. After the system recognizes one or more connected speakers, the audio information table coordinates each functional module to determine the best audio mode according to the configuration of the speakers, how to deal with each channel, how to choose the appropriate output, specifically which ones Which device the channel is outputting to. Therefore, the present invention can also be implemented as a semi-wireless home theater system.

Fig. 10 is a method of constructing a home theater according to an embodiment of the present invention. As shown in the figure, the method 1000 for building a home theater includes the following steps: In step 1010, one or more wireless speakers in the system are identified. According to an embodiment of the present invention, when the power of the wireless speaker is turned on, the wireless speaker establishes communication with the wireless transceiver and reports its information. The wireless transceiver obtains the information reported from the wireless speaker and forwards it to the audio decoding device for identification of the wireless speaker. The audio decoding device identifies the wireless speaker according to the reported device information. The audio decoding device can further obtain more relevant information from the wireless speaker or from the locally stored audio device information.

In step 1020, an audio information table is created. The audio information table includes information of one or more wireless speakers. Further, the sound information table may include information about a speaker of the audio decoding device itself or one or more sound boxes connected to the audio decoding device in a wired manner.

In step 1030, the audio mode of the home theater is determined according to the audio information table. According to an embodiment of the present invention, according to the number of wired speakers, wireless speakers and/or their own speakers in the audio information table and their equipment information, the audio mode suitable for the current home theater is determined. The device information and working parameters of wired speakers, wireless speakers and/or their own speakers may reflect their respective sound characteristics. Based on this information, it can be determined which sound mode can bring the best sound effect, and accordingly the sound mode of the home theater can be determined.

In step 1040, according to the determined sound mode, set the audio decoding method and allocate sound channels for wired speakers, wireless speakers and/or their own speakers. According to an embodiment of the present invention, the sound mode determines the number of output channels, channel mixing mode, channel allocation, and operating parameters such as frequency response, power, and volume of each channel. Accordingly, each functional module of each audio decoding device is configured using the determined optimal working parameters, so that these functional modules work according to the configured parameters.

In step 1050, a forwarding mode is set, and the allocated sound channel is forwarded to each wired speaker, wireless speaker and/or the allocated sound channel of its own speaker. According to an embodiment of the present invention, according to the channel allocated according to the sound information table, the forwarding mode is set to send the audio signal of the corresponding channel to each wired speaker, wireless transceiver (wireless speaker) and/or its own speaker. Thus, the wired speakers, wireless speakers and/or their own speakers in the audio information list cooperate with each other to form a required audio system.

Fig. 11 is a method for playing sound according to an embodiment of the present invention. As shown in FIG. 11 , the method 1100 for playing sound by using multiple playback devices includes the following steps: at step 1110 , decode the audio content according to the sound mode and output the first multiple channel audio signals. Wherein, the corresponding relationship between multiple sound channels and multiple playback devices is based on sound modes, and at least one or more than one playback devices are wireless speakers. Further, the sound mode is at least partially based on the sound information table; wherein the sound information table includes device information of one or more wireless sound boxes. According to an embodiment of the present invention, the audio information table includes device information of one or more wired speakers and/or speakers of the audio decoding device itself.

In step 1120, audio signals of at least some channels in the first plurality of channel audio signals are sent to a wireless transceiver. The audio decoding device is electrically connected with the wireless transceiver. According to an example of the present invention, the two can be electrically connected through a USB interface. According to an embodiment of the present invention, step 1120 further includes sending audio signals of at least some channels in the first plurality of channel audio signals to wired speakers and/or speakers of the audio decoding device itself.

In step 1130, the audio signals of at least some channels in the first plurality of channel audio signals are forwarded to one or more wireless speakers through the wireless transceiver.

At step 1140, the sound mode is updated according to the change of one or more playback devices.

In step 1150, the audio content is decoded according to the updated sound mode and a second plurality of channel audio signals are output.

In step 1160, audio signals of at least some channels in the second plurality of channel audio signals are sent to the wireless transceiver. According to an embodiment of the present invention, step 1160 further includes sending audio signals of at least some channels in the second plurality of channel audio signals to wired speakers and/or speakers of the audio decoding device itself.

In step 1170, the audio signals of at least some channels in the second plurality of channel audio signals are forwarded to one or more wireless speakers through the wireless transceiver.

According to some embodiments of the present invention, in the simplest way, intelligent multimedia playback terminal equipment (smart TV, laser TV, screenless TV, smart projection, (OTT, IPTV) TV box, etc.) form, extending 1 or more speakers to provide a better or even home theater-quality sound experience. According to some embodiments of the present invention, while improving the sound experience of the device, the computing performance of the multimedia terminal is fully utilized, an external decoder and an external host are omitted to form an integrated system, and the total system cost is reduced. According to some embodiments of the present invention, one or more speakers are externally extended in an integrated or separate form, and can communicate with the audio playback terminal in two directions, realizing functions such as automatic identification and automatic adaptation of external speakers. The optimal combination has been achieved in terms of economy, ease of use, and comprehensive cost.

The above-described embodiments are only for illustrating the present invention, rather than limiting the present invention. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the scope of the present invention. Therefore, all Equivalent technical solutions should also belong to the scope of the disclosure of the present invention.

Claims (38)

1. a kind of household audio and video system, including：

Audio decoding apparatus；

Wireless transceiver is electrically connected with audio decoding apparatus；And

One or more than one wireless sound box receives the audio signal from wireless transceiver；

Wherein, it is at least partially based on one or more than one external wireless sound box and determines Audio mode.

2. household audio and video system according to claim 1, wherein audio decoding apparatus are TV, projecting apparatus, set-top box, electricity Depending on box, tablet or mobile phone.

3. household audio and video system according to claim 1, wherein being further at least partially based on and audio decoding apparatus electricity One or more than one wired speaker of connection and/or the loudspeaker of audio decoding apparatus determine Audio mode.

4. household audio and video system according to claim 1, wherein audio decoding apparatus include：

Audio decoder decodes audio content；And

Audio manager, processing is from the decoded audio signal of audio decoder to obtain the multiple sound for meeting Audio mode Audio channel signal, and at least partly the multiple channel audio signal is forwarded to wireless transceiver.

5. household audio and video system according to claim 4, wherein audio decoding apparatus further comprise：First two-way communication Interface is communicated with wireless transceiver；Wherein audio manager is sent to by the first bi-directional communication interface to wireless transceiver The multiple channel audio signal of small part, and receive the equipment letter of one or more wireless sound boxes from wireless transceiver Breath.

6. household audio and video system according to claim 5, wherein the first communication interface is USB interface.

7. household audio and video system according to claim 4, wherein audio management module include aural information table, wherein sound equipment Information table includes the information of one or more than one wireless sound box and/or the loudspeaker of wired speaker and/or audio decoding apparatus.

8. household audio and video system according to claim 1, wherein audio coding apparatus include：

Audio decoder and post-processing module are configured to decoding audio content and are post-processed；

Sound channel management module is configured to handle from audio decoder and the decoded audio signal of post-processing module, generate Meet multiple channel audio signals of Audio mode；

Outgoing management module is configured to forward multiple channel audio signals；And

Configuration module determines Audio mode according to aural information voting and audio decoder and post-processing module, sound channel management is arranged Module and outgoing management module.

9. household audio and video system according to claim 8, wherein audio decoding apparatus include audio decoder chip and/or interior Deposit chip, wherein audio decoder, audio manager, audio decoder and post-processing module, sound channel management module, outgoing management mould Block and/or configuration module operate on audio decoder chip and/or memory chip.

10. household audio and video system according to claim 5, wherein facility information include equipment identification information, device parameter One or more of information and status information of equipment.

11. household audio and video system according to claim 4, wherein audio manager include facility information library.

12. household audio and video system according to claim 5, wherein wireless transceiver include：

Second bi-directional communication interface receives the audio signal from audio decoding apparatus and reports one or more than one nothing The facility information of line speaker；

Processor carries out operation related with wireless transmission protocol and sound signal processing；

Memory caches ephemeral data when audio signal to be played and storage running；

Signal adapter converts the form of audio signal and rf wireless signal to be played；

Radio-frequency front-end, improves transmitting signal power or amplification receives signal；And

First antenna.

13. household audio and video system according to claim 12, wherein wireless sound box include：

Second antenna；

Signal processor receives audio signal from wireless transceiver and reports one to wireless transceiver or be more than one The facility information of a wireless sound box；

Audio signal from wireless transceiver is amplified and drives loudspeaker by power amplifier；And

Loudspeaker.

14. household audio and video system according to claim 13, wherein wireless sound box send nothing in response to wireless transceiver The facility information of line speaker.

15. a kind of method of structure home theater, including：

One or more than one wireless sound box in identifying system；And

It is at least partially based on the Audio mode that one or more than one wireless sound box determines home theater.

16. according to claim 15 the method, including：Be at least partially based on audio decoding apparatus itself loudspeaker and/or with The facility information for one or more than one wired speaker that audio decoding apparatus connects in a wired fashion determines the sound of home theater Ring pattern.

17. according to claim 15 the method, further comprise：

Decoded audio signal is handled to obtain the audio signal for the multiple sound channels for meeting Audio mode；And

The audio signal of the multiple sound channel in part is forwarded to one or more than one wireless sound box.

18. according to claim 17 the method, further comprise：The decoding process of audio content is set according to Audio mode.

19. according to claim 17 the method, further comprise：Decoded audio signal is forwarded to wireless transceiver；With And decoded audio signal is sent to by one or more than one wireless sound box by wireless transceiver.

20. according to claim 19 the method, wherein wireless transceiver is electrically connected with audio decoding apparatus by USB interface.

21. according to claim 17 the method, further comprise：Establish aural information table comprising one or more than one The facility information of wireless mailbox and/or the loudspeaker of one or more than one wireless mailbox and/or audio decoding apparatus itself.

22. a kind of method playing sound using multiple playback equipments, including：

It decodes audio content and exports more than first a channel audio signals；Wherein, between multiple sound channels and multiple playback equipments Correspondence is based on Audio mode, and at least one or more than one playback equipment is wireless sound box；

The audio signal of at least partly sound channel in more than first a channel audio signals is sent to wireless transceiver；And

By wireless transceiver by the audio signal of at least partly sound channel in more than first a channel audio signals be forwarded to one or Multiple wireless sound boxes.

23. the method as described in right wants 22, wherein Audio mode are at least partially based on aural information table；Wherein, aural information Table includes the facility information of one or more wireless sound boxes.

24. the method as described in right wants 22, further comprises：

Audio mode is updated according to the variation of one or more than one playback equipment；

Audio content is decoded according to newer Audio mode and exports more than second a channel audio signals；And

The audio signal of at least partly sound channel in more than second a channel audio signals is sent to wireless transceiver.

25. the method as described in right wants 24, wherein aural information table further include one or more wired speakers and/or audio solution The facility information of the loudspeaker of decoding apparatus itself.

26. the method as described in right wants 25, further comprise by the multiple channel audio signals of the first or second at least partly The audio signal of sound channel is sent to the loudspeaker of wired speaker and/or audio decoding apparatus itself.

27. a kind of home theater, including：

Wireless transceiver is suitable for being electrically connected with audio decoding apparatus；And

One or an extra wireless sound box receive the audio signal from wireless transceiver；

Wherein, it is at least partially based on the Audio mode that one or more than one wireless sound box determines home theater.

28. the sound from audio decoding apparatus that home theater according to claim 27, wherein wireless transceiver receive Frequency signal is determined by Audio mode.

29. home theater according to claim 27 connects wherein being further at least partially based on audio decoding apparatus point The loudspeaker of the wired speaker and/or audio decoding apparatus that connect determine Audio mode.

30. home theater according to claim 27, wherein wireless transceiver include：

Second bi-directional communication interface receives the audio signal from audio decoding apparatus and reports one or more than one nothing The facility information of line speaker；

Processor carries out operation related with wireless transmission protocol and sound signal processing；

Memory caches ephemeral data when audio signal to be played and storage running；

Signal adapter converts the form of audio signal and rf wireless signal to be played；

Radio-frequency front-end, improves transmitting signal power or amplification receives signal；And

First antenna.

31. home theater according to claim 30, wherein the second communication interface is USB interface.

32. home theater according to claim 27, wherein wireless sound box include：

Second antenna；

Signal processor receives audio signal from wireless transceiver and reports one to wireless transceiver or be more than one The facility information of a wireless sound box；

Audio signal from wireless transceiver is amplified and drives loudspeaker by power amplifier；And

Loudspeaker.

33. home theater according to claim 32, wherein signal processor send wireless sound in response to wireless transceiver The facility information of case.

34. a kind of household audio and video system, including：

Audio decoding apparatus；

One or more than one audio decoding apparatus loudspeaker, is electrically connected with audio decoding apparatus；And

One or more than one wired speaker, is electrically connected with audio decoding apparatus；

Wherein, the loudspeaker of one or more than one audio decoding apparatus are at least partially based on and/or one or more than one is wired Speaker determines Audio mode.

35. household audio and video system according to claim 34, wherein audio decoding apparatus be TV, projecting apparatus, set-top box, TV box, tablet or mobile phone.

36. household audio and video system according to claim 34, including：

Wireless transceiver is electrically connected with audio decoding apparatus；And

One or more than one wireless sound box receives the audio signal from wireless transceiver；

Wherein, it is further at least partially based on one or more than one external wireless sound box and determines Audio mode.

37. a kind of method of structure home theater, including：

Identify one or more than one the wired speaker being electrically connected with audio decoding apparatus；And

The loudspeaker and one or more than one wired speaker for being at least partially based on audio decoding apparatus itself determine home theater Audio mode.

38. according to claim 37 the method, including：

One or more than one wireless sound box in identifying system；And

Further it is at least partially based on the Audio mode that one or more than one wireless sound box determines home theater.