CN101320434B - Display apparatus and method for recognizing location - Google Patents

Abstract

Provided are a display device and method for identifying a location. The display device identifies the location and communicates with an external device having a tag reader. The display device includes: a display unit; a plurality of labels arranged on the display unit, each label has a different identification (ID); a location information storage unit, which stores the location information of each label; and a control unit, if externally The device receives the tag ID recognized by the external device, and the control unit determines the location of the external device by comparing the ID with location information stored in the location information storage unit.

Description

Display device and method for identifying location

This application claims Korean Patent Application No. 10-2007-0055263 filed with the Korean Intellectual Property Office on June 5, 2007 and Korean Patent Application No. 10-2007-0087282 filed with the Korean Intellectual Property Office on August 29, 2007 priority of a patent application, which is hereby incorporated by reference in its entirety.

Technical field

Apparatus and methods consistent with the present invention relate to an interface for a display device, and more particularly, to an interface for identifying an external device such as a cellular telephone, digital camera, camcorder, or personal digital assistant (PDA). Apparatus and method for displaying location.

Background technique

A display device for identifying an external device in the related art uses one of a Radio Frequency Identification (RFID) technology, a camera, and a Global Positioning System (GPS). Devices using RFID technology include: radio frequency (RF) readers, which can be read and decoded; RFID tags, on which unique information is stored; application software and networks. An RF reader is installed on the outside of the display device and an RFID tag is attached to the external device, and thus, the RF reader senses an identification (ID) of the external device. A method of an apparatus using a camera includes installing a camera on a lower or upper portion of a watch display and sensing a position of an external device. In a device using GPS, a GPS receiver estimates precise time and distance from more than three measurement units, and calculates each of the three distances by using a triangulation method to identify a location of an external device.

However, according to the prior art, when a reader such as an RFID reader is installed outside the display device, the indicated information simply shows that an external device with a predetermined ID is located in front of the display device without displaying the device s position. Although the position of the external device can be detected by using a camera, since image processing is performed by the camera, a recognition rate may be relatively low and high processing capability is required. When GPS is used, an error in position such as a small space of a display device is increased, implementation of the device may become complicated, and cost may increase.

Contents of Invention

Exemplary embodiments of the present invention overcome the above disadvantages and other disadvantages not described above. Also, the present invention is not required to overcome the disadvantages described above, and an exemplary embodiment of the present invention may not overcome any of the problems described above.

The present invention provides a display apparatus and method for identifying a location of an external device by using a label on the display device.

According to an aspect of the present invention, there is provided a display device for identifying a position, the display device communicates with an external device having a tag reader, the display device includes: a display unit; a plurality of tags provided on the display unit, each Each tag has a different ID; a position information storage unit stores the position information of each tag; a control unit, when receiving a tag ID recognized by an external device from an external device, the control unit stores the ID with the position information The location information in the storage unit is compared to determine the location of the external device.

Labels can be provided on the front or back of the display unit.

If there are a plurality of received IDs, the control unit may determine a center position between corresponding tags as a position of the external device based on the plurality of IDs and position information stored in the position information storage unit.

The display apparatus may further include: a communication unit that communicates with an external device by using at least one of a wired method and a wireless method.

The display unit may include a touch screen panel that senses user input.

When an ID is received from an external device and one or more inputs are sensed by the touch screen panel, the control unit can determine the position of the corresponding tag based on the received ID and the position information stored in the position information storage unit, and can place the closest The location of the external device is determined as the location of the external device.

If there are a plurality of received IDs, the control unit may determine the center position between the corresponding tags based on the plurality of IDs and the position information stored in the position information storage unit, and determine the position closest to the center position as the outer The location of the device.

The control unit may determine the direction of the external device at the determined position of the external device based on the position information sensed by the touch screen.

The display device may further include: a tag writer that records predetermined information on one of the tags; and a tag antenna that allows communication to be established between each tag and the tag writer.

According to another aspect of the present invention, there is provided a display device for identifying a position, the display device communicating with an external device having a tag reader, the display device comprising: a display unit; a plurality of tags provided on the display unit, Each tag has different location information; the control unit, when receiving location information of the tag recognized by the external device from the external device, determines the location of the external device based on the location information.

According to another aspect of the present invention, there is provided a method of identifying the location of an external device having a tag reader, the method comprising: receiving an ID recognized by the external device; determining based on the received ID and location information of the ID The location of the external device.

According to another aspect of the present invention, there is provided a method of identifying an external device having a tag reader, the method including: sensing an input by using a display unit having a touch screen panel; receiving an ID recognized by the external device; and based on The received ID and the location information of the ID are used to determine the position of the corresponding tag, and the position closest to the corresponding tag in the position coordinates sensed by the touch screen is determined as the position of the external device.

If there are a plurality of IDs and position information, the step of determining the position of the external device by calculating the position of the external device may include: determining the distance between the corresponding tag coordinates based on the plurality of IDs and the position information of the plurality of IDs. center position; draw the position coordinates sensed by the touch screen closest to the center position of the tag coordinates; determine the drawn coordinates as the position of the external device.

According to another aspect of the present invention, there is provided an apparatus for communicating with an external device having a tag reader, the apparatus comprising: a display unit; a plurality of tags provided on the display unit; a tag recorder for storing predetermined information Recorded in the plurality of tags, wherein the predetermined information includes location information; a control unit that determines the location of the external device according to the predetermined information when the external device recognizes the predetermined information and receives the predetermined information from the external device.

A label can be located on the back of the display unit.

The display device may also include a tag antenna allowing communication to be established between each tag and the tag recorder.

A tag recorder and tag antenna can be located on the back of the display unit.

The predetermined information may include text information.

According to another aspect of the present invention, there is provided a method of identifying a position of an external device having a tag reader, the method comprising: if predetermined information is displayed on a display unit, the tag recorder converts the predetermined information and the predetermined information The position information is recorded in the tag; if the external device recognizes the predetermined information and the position information, the predetermined information and the position information are received from the external device; and the position of the external device is determined based on the received predetermined information and the position information.

The optional step of recording the predetermined information and the location information includes the tag recorder recording the predetermined information and the location information in the tag via the tag antenna if the predetermined information is displayed on the display unit.

As described above, the present invention provides a display apparatus and method for recognizing a location of an external device on a display device in real time. Accordingly, interaction between each external device and the display device can be performed. The invention is easy to implement and saves cost. Furthermore, the invention is applicable to web-based home appliances and wall displays with simple and adaptive interfaces. Furthermore, according to the present invention, simple text information can be recorded in a tag, so that the information can be easily used by an external device without being reprocessed.

Description of drawings

The above and other aspects of the invention will become more apparent from the detailed description of exemplary embodiments of the invention with reference to the accompanying drawings, in which:

1 is a block diagram illustrating a display device according to an exemplary embodiment of the present invention;

Fig. 2 shows a display unit according to an exemplary embodiment of the present invention;

3 is a block diagram illustrating a display device according to another exemplary embodiment of the present invention;

4 illustrates a display unit with a touch screen panel according to an exemplary embodiment of the present invention;

FIG. 5 is a flowchart of a method of recognizing a location of an external device according to an exemplary embodiment of the present invention;

FIG. 6 is a flowchart of a method of identifying a location of an external device according to another exemplary embodiment of the present invention;

7 is a flow chart of a method of recognizing a location of an external device on a touch screen panel;

8 is a flowchart of a method of recognizing a location on a touch screen panel of an external device according to another exemplary embodiment of the present invention;

9 is a block diagram illustrating a display device according to another exemplary embodiment of the present invention; and

FIG. 10 is a flowchart of a method of recognizing a location of an external device according to another exemplary embodiment of the present invention.

Detailed ways

The accompanying drawings illustrate exemplary embodiments of the invention, reference being made to said drawings in order to fully understand the invention together with its advantages and objects.

FIG. 1 is a block diagram illustrating a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 1 , the display device 100 includes: a display unit 110 , a control unit 120 , a location information storage unit 130 , and a communication unit 140 . The display unit 110 includes a label 111 .

The electronic tag is an automatic identification and data capture (AIDC) technology that reads data stored in an electronic tag having a microchip in a non-contact manner by using radio frequency. The tag semiconductor chip and antenna transmit data wirelessly within a distance of several meters to tens of meters, and the reader receives the signal and decodes the data. Electronic chips are very small chips that store information and send information. Also, the electronic chip transmits the stored information when receiving a higher RF signal. The type of the tag is not limited to an electronic chip, and may vary as long as the ID can be identified, such as an electronic tag or an image tag. The plurality of tags 111 according to an exemplary embodiment of the present invention include IDs different from each other. ID is a unique identification number of the corresponding tag. The location information storage unit 130 stores location information on each tag. The location information is information on coordinates indicating where a corresponding tag is placed on the display unit 110 . When receiving the ID from the external device 220 (see FIG. 2 ) having a tag reader, the control unit 120 determines the location of the external device 220 based on the ID and the location information stored in the location information storage unit 130 . When the external device 220 approaches a tag located on the display unit 110, the external device 220 reads data on the ID of the tag. The external device 220 then transmits the read tag ID to the display apparatus 100 . The control unit 120 in the display apparatus 100 finds out the location of the corresponding tag according to the received tag ID and the location information stored in the location information storage unit 130, and then determines the location as the location of the external device.

The arrangement of the labels will be explained with reference to FIG. 2 . FIG. 2 illustrates a display unit according to an exemplary embodiment of the present invention. Referring to FIG. 2 , a plurality of labels may be disposed on the front and/or rear of the display unit 110 . On the front, a transparent label such as an image label may be provided, and on the back of the display unit 110 any type of label may be provided. The labels may be arranged at a predetermined distance from each other. As the number of tags increases, the accuracy of obtained position information of the external device 220 increases. The external device 220 includes a tag reader and a communication unit. The external device 220 is a consumer electronics (CE) device for communication, such as a cellular phone, a Moving Picture Experts Group (MPEG) layer 3 player (MP3P), or a portable media player (PMP), but the type of the external device 220 is not Not limited to these devices. The tag reader converts the signal received from the tag, or stores the data of the signal in a memory as a storage device while verifying the signal of the data, and then transmits the data when necessary. Currently, there are cellular phones with tag readers on the market. The communication unit may transmit the ID recognized from the tag together with unique information of the external device 220 to the display device.

Also, if the external device 220 is located within a distance from which the tags can be recognized, multiple tags may be recognized simultaneously or sequentially. When the external device 220 recognizes a plurality of IDs and transmits the IDs, the display apparatus receives the plurality of IDs. In this case, the control unit determines the position that is the center of the corresponding tag as the position of the external device 220 based on the plurality of IDs and the position information stored in the information storage unit. For example, referring to FIG. 2, when the external device 220 recognizes the tag "1" 211 and the tag "2" 212, and sends the ID of the tag to the display device, the display device receives the ID of the tag "1" 211 and the tag "2" 212. . In this case, the control unit determines the center position between the tag “1” 211 and the tag “2” 212 based on the position information stored in the position information storage unit, and assumes that the external device 220 is located in the middle of the tags 211 and 212 , to determine the location of the external device 220 .

Tags 111 may include their own location information. In this case, when receiving location information from the external device 220 having a tag reader, the control unit 120 determines the location of the external device 220 based on the location information.

The communication unit 140 receives the ID recognized by the external device 220 from the external device 220 .

The above explanation is given assuming that it is the position of a single external device that will be determined. The external device has its own unique information, and can transmit the unique information together with the identified ID. The unique information of the external device may include information indicating what type of device the external device is (eg, cellular phone, MP3P, or PMP). When a plurality of external devices are located at the display device, the display apparatus receives unique information of each external device, and determines a position of a single external device based on a position of a corresponding tag having the unique information of the same external device. Therefore, when multiple IDs are received, it is determined whether the multiple IDs are the result of a single external device or multiple external devices, and then the location is determined.

FIG. 3 is a block diagram illustrating a display device according to another exemplary embodiment of the present invention.

Referring to FIG. 3 , the display device 300 includes: a display unit 310 , a control unit 320 , a location information storage unit 330 , and a communication unit 340 . Also, the display unit 310 includes a label 311 and a touch screen panel 312 . The display unit 310, the tag 311, and the communication unit 340 according to an exemplary embodiment of the present invention are similar to components that have been previously explained, and thus, their detailed explanations are omitted here.

The display unit 310 includes a touch screen panel 312 that senses a user's input with respect to an external device. The touch screen panel can be a multi-touch screen. An ID is received from an external device, and the touch screen can sense one or more inputs. For example, when a touch of a user's finger is sensed while an external device is in contact with the touch screen panel, the touch screen may sense more than two inputs. When the touch screen panel senses another input other than the external device, the position of the external device may be incorrectly determined. To solve this problem, the control unit 320 may determine the position of the corresponding tag 311 based on the received ID and the position information stored in the position information storage unit 330, and may determine the position of the external device as the position sensed by the touch screen 312. The position closest to the corresponding label 311 in .

Furthermore, multiple tags can be identified simultaneously or sequentially if an external device is located within a distance from which the tags can be sensed. When an external device recognizes a plurality of IDs and transmits the IDs, the display device receives the plurality of IDs. In this case, based on the plurality of IDs and the position information stored in the position information storage unit 330, the center position of the corresponding tag is determined. For example, referring to FIG. 4, when the external device 420 recognizes the tag "1" 411 and the tag "2" 412, and sends the ID of the tag to the display device, the display device receives the ID of the tag "1" 411 and the tag "2" 412. . In this case, the control unit determines the center position between the label "1" 411 and the label "2" 412, and determines the center position. Then, the control unit 320 may determine the position of the external device as the position closest to the center position among the positions sensed by the touch screen.

Tags 311 may include their own unique location information. In this case, when the display device receives position information from the external device 420 having a tag reader and the touch screen panel senses one or more inputs, the control unit 320 determines the position of the corresponding tag based on the received position information, and The location of the external device is determined as the location closest to the location of the corresponding tag among the locations sensed by the touch screen.

The above explanation is given assuming that it is the position of a single external device that will be determined. The external device has its own unique information, and can transmit the unique information together with the identified ID. When a plurality of external devices are located at the display unit, the display unit receives unique information of each external device, and determines a location of a single external device based on a location of a corresponding tag having the unique information of the same external device. Therefore, when multiple IDs are received, it is determined whether the multiple IDs are the result of a single external device or a plurality of external devices, and then the location of the external device is determined.

In addition, the direction of the external device may be determined at the determined position of the external device by calculating all position information of the external device sensed by the touch screen.

FIG. 5 is a flowchart of a method of recognizing a location of an external device according to an exemplary embodiment of the present invention.

Referring to FIG. 5, when an external device having a tag reader approaches or contacts a display device having a tag, data on an ID stored in the tag is recognized. The display device then receives the identified ID (operation 501). The control unit determines the location of the external device based on the received ID and location information of the ID (operation 502). FIG. 6 is a flowchart of a method of recognizing a location of an external device according to another exemplary embodiment of the present invention.

Referring to FIG. 6, the display apparatus receives an ID recognized by an external device (operation 601). If the ID recognized by the external device is single ("YES" in operation 602), the location of the external device is determined based on the received ID and location information of the corresponding ID (operation 603). If the plurality of IDs are recognized by the external device ("No" in operation 602), the center position between the corresponding tags is determined based on the plurality of IDs and the position information of the corresponding plurality of IDs (operation 604), thereby The central location is determined as the location of the external device (operation 605).

FIG. 7 is a flowchart of a method of recognizing a location of an external device on a touch screen panel.

Referring to FIG. 7 , when an external device having a tag reader approaches or contacts the display unit having the tag and the touch screen panel, data of an ID stored in the tag is recognized. A display unit having a touch screen panel simultaneously or sequentially senses inputs (operation 701). The ID recognized by the external device is then received (operation 702). The control unit determines the location of the corresponding tag based on the received ID and location information of the received ID (operation 703 ). Among the position coordinates sensed by the touch screen, the position closest to the position of the corresponding tag is determined as the position of the external device.

8 is a flowchart of a method of recognizing a location on a touch screen panel of an external device according to another exemplary embodiment of the present invention.

Referring to FIG. 8, a display apparatus having a touch screen panel senses an input (operation 801), and then, an ID recognized by an external device is received (operation 802). If the ID is single ("YES" in operation 803), the location of the corresponding tag is determined based on the received ID and location information of the received ID (operation 804). Among the position coordinates sensed by the touch screen, the position closest to the position of the corresponding tag is determined as the position of the external device (operation 805). If there are a plurality of IDs ("No" in operation 803), a center position between corresponding tag coordinates is determined based on the plurality of IDs and position information of the plurality of IDs (operation 806). The location coordinates sensed by the touch screen closest to the center location of the tag coordinates are mapped (operation 807 ). The drawn coordinates are determined as the location of the external device (operation 808).

FIG. 9 is a block diagram of a display device 900 according to another exemplary embodiment of the present invention.

Referring to FIG. 9 , a display device 900 includes a display unit 910 and a control unit 920 . The display unit 910 includes: a tag 912 , a tag writer (writer) 914 and a tag antenna 916 . The configurations of the display unit 910 and the tag 912 are the same as those of the display unit 110 and the tag 111 shown in FIG. 1 , respectively, and thus their detailed descriptions will be omitted.

When the predetermined information is displayed on the display unit 910 , the label recorder 910 records the predetermined information in a label located at the position of the predetermined information on the display unit 910 . In order to display predetermined information on the display unit 910 , the display device 900 transmits a command that the predetermined information is recorded at a predetermined position to both the display unit 910 and the label recorder 914 . The tag recorder 914 receiving the command records the information on the predetermined position and the predetermined information in the tag at the predetermined position. The predetermined information is text information and/or graphic information.

Tag antenna 916 enables communication to be established between tag 912 and tag recorder 914 . Tag recorder 914 may record information in tag 912 via tag antenna 916 . A tag recorder 914 and a tag antenna 916 may be located on the back of the display unit 910 .

An external device (not shown) having a tag reader receives information on the predetermined location and predetermined information from the tag 912 located at the predetermined location, so as to approach the display unit 910 displaying the predetermined information. An external device can directly read the displayed information by using the tag 912 . If the display device 900 receives location information recognized by the external device, the control unit 920 detects the location of the tag 912 based on the location information, and then determines the detected location as the location of the external device.

FIG. 10 is a flowchart of a method of recognizing a location of an external device according to another exemplary embodiment of the present invention. Referring to FIG. 10 , if predetermined information is displayed on the display unit, the tag recorder records the predetermined information and location information about the predetermined information in the tag (operation 1001). In this case, predetermined information as well as location information may be recorded in the tag via the tag antenna.

The external device reads predetermined information and location information from the tag, and then, the display device receives the location information from the external device (operation 1002).

Accordingly, the location of the external device is determined from the received location information (operation 1003). The location of the tag is determined as the location of the external device.

While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that changes may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. Various changes in form and detail. The exemplary embodiments should be considered as descriptive only, not limiting. Therefore, the scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention.

Claims (24)

1. A display device that identifies a location and communicates with an external device having a tag reader, the display device comprising: Display unit; a plurality of tags provided on the display unit, each tag having a different ID; a location information storage unit for storing location information of each tag; and The control unit, if a tag ID recognized by the external device is received from the external device, determines the location of the external device based on the recognized tag ID and location information stored in the location information storage unit. 2. The display device of claim 1, wherein the label is provided on at least one of a front surface and a rear surface of the display unit. 3. The display device according to claim 1, wherein if a plurality of IDs are received, the control unit sets the center position between the corresponding tags based on the plurality of IDs and the position information stored in the position information storage unit. Determine the location for the external device. 4. The display apparatus of claim 1, further comprising: a communication unit that communicates with the external device via at least one of wired communication and wireless communication. 5. The display device of claim 1, wherein the display unit comprises a touch screen panel to sense user input. 6. The display device according to claim 5 , wherein, if an ID is received from an external device and at least one input is sensed by the touch screen panel, the control unit performs an operation based on the received ID and the location information stored in the location information storage unit. The position of the corresponding tag is determined, and the input position closest to the position of the corresponding tag is determined as the position of the external device. 7. The display device according to claim 6, wherein, if a plurality of IDs are received, the control unit determines a center position between corresponding tags based on the plurality of IDs and position information stored in the position information storage unit , and determine the input position closest to the center position as the position of the external device. 8. The display apparatus of claim 5, further comprising: a communication unit that communicates with the external device via at least one of wired communication and wireless communication. 9. The display apparatus of claim 6, wherein the control unit determines the direction of the external device at the determined position of the external device based on all position information sensed by the touch screen. 10. A display device for identifying a location and communicating with an external device having a tag reader, the display device comprising: Display unit; a plurality of labels disposed on the display unit, each label having different position information; and The control unit, if the position information of the tag recognized by the external device is received from the external device, the control unit determines the position of the external device based on the position information. 11. The display device of claim 10, wherein the label is provided on at least one of a front surface and a rear surface of the display unit. 12. The display device of claim 10, wherein the display unit comprises a touch screen panel to sense user input. 13. The display device according to claim 12, wherein if the position information is received from the external device and at least one input is sensed by the touch screen panel, the control unit determines the position of the corresponding tag based on the received position information, and sets the final The input position close to the position of the corresponding tag is determined as the position of the external device. 14. A method of identifying the location of an external device having a tag reader using the display device of any one of claims 1-4, the method comprising: receiving a tag ID recognized by an external device; and The location of the external device is determined based on the ID and location information of the ID. 15. The method of claim 14, wherein determining the location of the external device comprises: If a plurality of IDs are received, a center position between corresponding tags is determined based on the plurality of IDs and position information of the plurality of IDs, and the center position is determined as a position of the external device. 16. A method for identifying an external device having a tag reader using the display device according to any one of claims 5-9, the method comprising: sensing input by using a display unit with a touch screen panel; receiving a tag ID recognized by an external device; and The location of the corresponding tag is determined based on the ID and the location information of the ID, and the location coordinate closest to the corresponding tag among the location coordinates sensed by the touch screen is determined as the location of the external device. 17. The method of claim 16, wherein the determining step comprises: If multiple IDs are received, then determine a center position between corresponding tag coordinates based on the multiple IDs and the position information of the multiple IDs; plotting the touchscreen sensed position coordinates closest to the center position of the label coordinates; and The drawn coordinates are determined as the position of the external device. 18. An apparatus for communicating with an external device having a tag reader, the apparatus comprising: Display unit; a plurality of labels provided on the display unit; a tag recorder, recording predetermined information in the plurality of tags, wherein the predetermined information includes location information; and The control unit, if the external device recognizes the predetermined information and the predetermined information is received from the external device, the control unit determines the location of the external device according to the predetermined information. 19. The device of claim 18, wherein the label is located on the rear of the display unit. 20. The device of claim 18, further comprising a tag antenna through which communication is established between each tag and the tag recorder. 21. The device of claim 20, wherein the tag recorder and tag antenna are located on the back of the display unit. 22. The apparatus of claim 18, wherein the predetermined information comprises text information. 23. A method of identifying the location of an external device having a tag reader using a display device according to any one of claims 18-22, said method comprising: if the reservation information is displayed on the display unit, recording the reservation information and the location information of the reservation information in the tag; If the external device recognizes the predetermined information and the location information, receiving the predetermined information and the location information from the external device; and The location of the external device is determined based on the received predetermined information and location information. 24. The method of claim 23, wherein recording the predetermined information and the location information comprises recording the predetermined information and the location information in the tag via a tag antenna if the predetermined information is displayed on the display unit.

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