JP2008182463A - Television receiving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a television receiving device such that a viewer of a television receiving device having an IP telephone function can allow another viewer of speech communication to view the same video as that the viewer himself/herself views without requiring any expensive facilities. <P>SOLUTION: In a video display system 1, televisions 10 and 20 having IP telephone functions form an IP telephone session according to user's operations. When the viewer of the television 10 operates to transmit video displayed on the television 10 as video display information to the television 20, data corresponding to the data are encoded in a format related to the television 20 and packets including the encoded data are transmitted to the television 20. The television 20 displays video corresponding to the signal obtained by decoding the data of the packets in a display area 24 as part of a display area 22 of the television 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a television receiver, and more particularly to a television receiver that can be connected to a communication line.

  Conventionally, various techniques have been disclosed regarding a television receiver that can be connected to a communication line.

  For example, Japanese translations of PCT publication No. 2003-508977 (patent document 1) discloses a technique used for controlling various devices such as a video recording apparatus in addition to causing a handset to function as a cordless telephone in an interactive television system. .

  Note that it is also conceivable that such a television receiver can be used for a video conference or the like by configuring such a television receiver so that the same video can be viewed simultaneously by a plurality of devices. From this point of view, various techniques have been disclosed.

  For example, Japanese Patent Laid-Open No. 2002-185943 (Patent Document 2) discloses that in a television broadcast viewing system, a television broadcast server provides not only broadcast data to a mobile terminal that has directly accessed the server, but also multipoint calling / television. It is a technology that provides broadcast data to broadcast control viewing devices.

  Japanese Patent Laying-Open No. 2006-39883 (Patent Document 3) is capable of transmitting video and audio from the outside in addition to the imaging and audio of the caller in the video-phone call device. A technique that can be transmitted is disclosed.

  Japanese Patent Laid-Open No. 2006-229726 (Patent Document 4) allows both users of an IP videophone terminal to proceed with a conversation while simultaneously viewing a playback image of specific video content data during a call connection. Discloses a technique for reproducing video content data.

Japanese Patent Laying-Open No. 2004-40698 (Patent Document 5) discloses a technique capable of finding a partner to talk to when someone wants to talk to someone about the program while watching TV.
Japanese translation of PCT publication No. 2003-508977 JP 2002-185943 A JP 2006-39883 A JP 2006-229726 A JP 2004-40698 A

  With the development of information communication equipment, technologies such as e-mails and homepages that allow multiple people to share information have been realized. Based on this current situation, there is a growing demand for those who are watching videos such as television programs to improve their interest by watching the same videos at the same time as others. In particular, if a viewer of a television receiver having an IP telephone function can cause the other party of the telephone to view the same video, it is expected that the interest in the telephone call will be significantly improved.

  However, according to the technology disclosed in Japanese Patent Laid-Open No. 2002-185943, it is necessary to provide a multipoint call / television broadcast control viewing device in order to provide broadcast data to a mobile terminal that does not directly access the server. There is a problem that costs are high.

  Further, according to the technology disclosed in Japanese Patent Application Laid-Open No. 2006-39883, since the voice of the speaker and the voice of the video are switched and transmitted, the configuration of the apparatus may be complicated. Also, according to the technology disclosed in Japanese Patent Application Laid-Open No. 2006-229726, video data is transmitted during a call, so traffic increases and the call is blocked, so that the sender and the receiver have the same timing. In some cases, I could not enjoy it. Also, according to the technology disclosed in Japanese Patent Application Laid-Open No. 2004-40698, a call can be made when both have already watched the same program. There was also the problem of not being able to share the fun.

  The present invention has been made to solve the above-described problems, and its purpose is to make it possible for a viewer of a television receiver having an IP telephone function to be a call partner without requiring expensive equipment. It is an object of the present invention to provide a television receiver capable of viewing the same video as the video that the user views.

  A television receiver according to an aspect of the present invention is a television receiver connected to an information processing device that receives viewing program information from a terminal via a communication line. A signal acquisition means for acquiring a signal for displaying a video, a communication means for transmitting or receiving a signal in accordance with IP (Internet Protocol), a designation means for designating a partner device by an IP telephone number, and an IP telephone number Format storage means for associating and storing the encoding format and encoding means for encoding a signal for displaying the video acquired by the signal acquisition means, wherein the encoding means stores the format storage Encoding a signal for displaying the video acquired by the signal acquisition means in a format associated with the IP telephone number designated by the designation means in the means, The communication means transmits the signal encoded by the encoding means to the counterpart apparatus designated by the designation means, and transmits a radio signal for controlling the operation of the television receiving apparatus, Receiving means for receiving a radio signal transmitted by the remote control terminal, wherein the remote control terminal is capable of carrying out a call processing via the communication means, and comprises an operation means for instructing transmission of a signal to the counterpart device. The communication unit starts transmission of the signal encoded by the encoding unit to the counterpart device on the condition that the operation on the operation unit is started, and the operation on the operation unit is stopped. On the condition that the transmission of the signal is stopped, the format storage means sets the format for the moving image as the encoding format associated with the IP telephone number. H.264 / MPEG-4 AVC (MPEG-4 Part 10 Advanced Video Coding) is stored, and JPEG (Joint Photographic Experts Group) is stored as a format for still images. When the image to be transmitted is a moving image or a still image, the encoding means encodes the signal in the second format when the specifying means specifies a moving image, and the specifying means An information acquisition unit that encodes a signal in the first format when an image is specified, and causes the communication unit to acquire viewing program information of the counterpart device specified by the specification unit from the information processing device; It further comprises display means for displaying the viewing program information acquired by the information acquisition means.

  A television receiver according to another aspect of the present invention is a television receiver connected to a communication line, a signal acquisition means for acquiring a signal for displaying an image, and an IP (Internet Protocol). Communication means for transmitting or receiving a signal, designation means for designating a partner apparatus by IP telephone number, format storage means for storing the IP telephone number and encoding format in association with each other, and the signal acquisition means Encoding means for encoding a signal for displaying the acquired video, wherein the encoding means obtains the signal in a format associated with the IP telephone number designated by the designation means in the format storage means. The signal for displaying the video acquired by the means is encoded, and the communication means converts the signal encoded by the encoding means to the designation means. Accordingly, it characterized to be sent to the specified remote device.

  The television receiver according to the present invention further includes a remote control terminal for transmitting a radio signal for controlling the operation of the television receiver, and a receiving means for receiving a radio signal transmitted by the remote control terminal, The remote control terminal is capable of performing call processing via the communication means, and includes an operation means for instructing transmission of a signal to the counterpart device, and the communication means is provided that an operation is performed on the operation means. Preferably, the signal encoded by the encoding unit is transmitted to the counterpart device specified by the specifying unit.

  In the television receiver according to the present invention, the communication means transmits the signal encoded by the encoding means to the partner apparatus on condition that an operation on the operation means is started. It is preferable that the transmission of the signal is stopped on the condition that the operation is started and the operation on the operation unit is stopped.

  In the television receiver according to the present invention, the format storage means stores a first format as a format for a moving image as a format of encoding associated with an IP telephone number, and further a format for a still image. When the second means is stored, the designation means designates whether the image to be transmitted to the counterpart device is a moving picture or a still picture, and the encoding means designates the moving picture as the designation means. Preferably, the signal is encoded in the second format, and the signal is encoded in the first format when the designation means designates a still image.

  In the television receiver according to the present invention, the first format is an H.264 / MPEG-4 AVC (MPEG-4 Part 10 Advanced Video Coding) format, and the second format is JPEG. (Joint Photographic Experts Group) format is preferred.

  The television receiver according to the present invention is connected to an information processing device that receives viewing program information from a terminal via the communication line, and the communication means is connected to the information processing device. It is preferable that the apparatus further comprises information acquisition means for acquiring the viewing program information of the counterpart apparatus designated by the designation means from the apparatus, and display means for displaying the viewing program information acquired by the information acquisition means.

  According to the television receiver of the present invention, a signal for displaying a video that can be displayed on the television receiver is associated with the IP telephone number to the counterpart apparatus specified by the IP telephone number. Encoded in the form and transmitted. Therefore, the viewer of the television receiving apparatus can surely display the same image as that of the own apparatus on another terminal capable of making a call using the IP telephone function. Thus, the viewer of the television receiver having the IP telephone function can cause the other party to view the same video as the video he / she views.

  In addition, since encoding and transmission of information after encoding are performed in the television receiver, the above-described effects can be achieved without requiring expensive equipment.

  In addition, since the encoding is performed in a format associated with the IP telephone number of the counterpart device, the same video as the video displayed on the television receiver is displayed on the counterpart device regardless of the form of the counterpart device. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<First Embodiment>
Initially, with reference to FIG. 1, the technical idea which implement | achieves the video display system 1 which concerns on the 1st Embodiment of this invention is demonstrated. FIG. 1 is a sequence chart showing communication performed between the televisions 10 and 20 constituting the video display system 1. The television 10 and the television 20 are connected via the Internet 90.

  In step S <b> 100, television 10 performs a calling operation for making a phone call according to IP (Internet Protocol) to television 20. In step S <b> 110, television 10 receives a signal indicating that a call for the calling operation is being performed from television 20. In step S <b> 120, television 10 receives a signal indicating that there is a response to the call operation from television 20.

  In step S <b> 130, the television 10 transmits a confirmation signal for the response to the television 20. Further, a telephone session is established between the television 10 and the television 20 in accordance with SIP (Session Initiation Protocol). When this telephone session is established, a voice call is made by each user between the television 10 and the television 20 (step S140).

  In step S <b> 150, television 10 transmits information for identifying the video displayed on itself (hereinafter “video display information”) to television 20. More specifically, the television 10 encodes the video signal acquired by the television 10 in a format corresponding to the television 20, and then transmits the signal after the encoding process to the television 20.

  In step S <b> 160, television 10 receives a status signal representing the state of operation of television 20 from television 20.

  In step S170, audio signals and video signals are communicated between the television 10 and the television 20. In the television 10, when a user of the television 10 operates a remote control terminal (a remote control terminal 30 described later) of the television 10 to speak, an audio signal corresponding to the speech is transmitted to the television 20 and the Internet. A call is realized.

  In step S180, the television 10 notifies the television 20 of the end of the IP phone. In step S <b> 190, the television 10 receives confirmation (acceptance) for the end from the television 20.

  With reference to FIG. 2, video display system 1 according to the present embodiment will be further described. FIG. 2 is a diagram showing the configuration of the video display system 1. The video display system 1 includes a SIP management server 60 in addition to the televisions 10 and 20. Connected to the television 10 are a DVD (Digital Versatile Disc) player 50, a HDD (Hard Disk Drive) recorder, and other video playback devices. Television 10 is controlled by a control signal issued by remote control terminal 30. The television 20 is controlled by a control signal issued by the remote control terminal 40.

  The television 10 displays an image corresponding to the channel selected by the remote control terminal 30 in the display area 12. The television 10 further displays the video of the channel corresponding to the video displayed on the television 20 in the display region 14 shown in a part of the display region 12. The television 10 transmits a packet 300 including video display information to the television 20. The packet 300 is received by the television 20 and video display information is extracted from the packet 300. The television 20 decodes the encoded data included in the information based on the video display information, and displays the video corresponding to the decoded signal in the display area 24. The television 20 displays a video corresponding to the channel selected by the remote control terminal 40 in the video display area 22.

  The SIP management server 60 manages IP phones that comply with SIP. The SIP management server 60 is realized by, for example, a computer system having a storage device that stores data and a processor that executes instructions.

  The storage device of the SIP management server 60 stores data for realizing the IP telephone by the television 10 and the television 20. More specifically, data (TV-ID) for identifying each television is stored in the memory area 62. The IP address assigned to each television is stored in the memory area 64. The IP telephone number of each television is stored in the memory area 66. The processor of the SIP management server 60 establishes a communication session according to SIP with each terminal device based on the data and program stored in the storage device. When the session is established, each terminal device can use an IP phone. The SIP management server 60 is realized by a computer system having a known configuration. Therefore, the description thereof will not be repeated here.

  With reference to FIG. 3, data communicated between the television 10 and the television 20 will be described. FIG. 3 is a diagram conceptually showing the configuration of packet 300. The packet 300 includes a header part 310, a user data part 320, and an FCS (Frame Check Sequence) 330. The header portion 310 includes a destination address and a transmission source address. The destination address is the IP address (123.456. **. 2) of the television 20. The transmission source address is the IP address (123.456. **. 1) of the television 10 that transmits the packet 300.

  The user data section 320 includes a code indicating that video display information is included, compression-coded video data, and a code for requesting decoding of the video data. When the packet 300 having such a configuration is received by the television 20, the decoding means (decoding unit 445 described later) in the television 20 decodes the video data included in the user data unit 320, and the original video Restore to signal. The FCS 330 includes data for correcting data errors in the packet 300.

  A packet 300 shown in FIG. 3 is transmitted from the television 10 to the television 20. Conversely, the packet transmitted from the television 20 to the television 10 is also realized by the same configuration as the configuration of the packet 300 shown in FIG.

  With reference to FIG. 4, the function which implement | achieves the video display system 1 is demonstrated. FIG. 4 is a block diagram showing a configuration of functions realized by television 10 and television 20.

  The television 10 includes a first control unit 410, a first acquisition unit 420, a first operation unit 422, a first storage unit 424, a first display unit 426, and a first communication unit 428. With. The first control unit 410 includes a SIP communication management unit 412, an encoding unit 414, and a packet generation unit 416.

  The first acquisition unit 420 acquires a signal for displaying an image on the first display unit 426. In one aspect, the first acquisition unit 420 is implemented as an input unit that receives input of a plurality of television broadcast signals and a tuner unit that selects at least one of these television broadcast signals. In another aspect, the first acquisition unit 420 is realized as a video signal input unit that receives a video signal input from the outside of the television 10. The television broadcast signal includes terrestrial broadcast, BS (Broadcast Satellite) broadcast, CS (Commercial Satellite) broadcast, cable television broadcast, and Internet television broadcast. Further, the video signal input from the outside of the television 10 includes a video signal reproduced by the DVD player 50 and input to the television 10.

  The first operation unit 422 receives an operation command input to the television 10. In one aspect, the first operation unit 422 is realized as an operation button provided on the front surface of a housing that constitutes the outline of the television 10. The first operation unit 422 is realized as a receiving unit that receives a control signal transmitted from the remote control terminal 30 that controls the operation of the television 10.

  The first control unit 410 realizes video display on the first display unit 426 based on a command given to the television 10 and a video signal acquired by the television 10. First control unit 410 implements communication with television 20 based on data and programs stored in first storage unit 424 and a command given to first operation unit 422. . More specifically, the SIP communication management unit 412 communicates with the television 20 via the first communication unit 428 based on a command for establishing a telephone session with the television 20. The SIP communication management unit 412 confirms the establishment of a telephone session between the television 10 and the television 20 and transmits a signal according to a command given to the first operation unit 422 to the television 20.

  The encoding unit 414 compresses and encodes the video signal acquired by the first acquisition unit 420. Data generated by compression encoding is input to the packet generation unit 416.

  The packet generation unit 416 generates packet data for communication via the Internet 90 based on the data. The generated data is transmitted from the first communication unit 428 to the television 20 via the SIP communication management unit 412.

  The first communication unit 428 transmits or receives signals according to the Internet protocol. When the telephone session is established by the SIP communication management unit 412, the first communication unit 428 transmits an audio signal from the television 10 to the television 20 while the session is formed. Conversely, the first communication unit 428 receives the audio signal transmitted from the television 20 and transmits it to the SIP communication management unit 412.

  Note that, in the television 10, the compression encoding format in the encoding unit 414 corresponds to the television 20 as described later.

  Referring to FIG. 4 again, the television 20 includes the second acquisition unit 460, the second operation unit 462, the second control unit 450, the second storage unit 464, and the second display unit 466. And a second communication unit 468. Second control unit 450 includes a SIP communication management unit 452.

  The second acquisition unit 460 acquires a signal for displaying a video from the outside of the television 20. The second operation unit 462 receives an instruction input to the television 20. The second control unit 450 controls the operation of the television 20 based on a command given to the television 20 and data and programs stored in the television 20. The second storage unit 464 stores data given in advance to the television 20 and a program for realizing an operation prescribed in advance for the television 20. The second display unit 466 displays an image based on a signal given to the television 20.

  Second communication unit 468 transmits or receives a signal in accordance with the Internet protocol.

  Second control unit 450 includes a confirmation unit 454, a decryption unit 456, and a SIP communication management unit 452. The confirmation unit 454 confirms whether video display based on the signal included in the video display information is possible based on the data received by the second communication unit 468. More specifically, the confirmation unit 454 refers to the second storage unit 464 and determines whether or not video display based on information given from the television 10 is permitted. If such display is not permitted, confirmation unit 454 generates data indicating that fact and sends the data to SIP communication management unit 452. Confirmation unit 454 generates data representing the determination result, and transmits the generated data to SIP communication management unit 452.

  The SIP communication management unit 452 sends the data to the television 10. In this case, when the television 10 transmits the compression-encoded video signal to the television 20, the data is sent from the SIP communication management unit 452 to the decoding unit 456. The decoding unit 456 decodes the video signal from the packet and sends it to the second display unit 466. Second display unit 466 displays an image based on the signal.

  The SIP communication management unit 452 performs processing for enabling a telephone call based on an IP telephone based on a command given to the second operation unit 462 or based on a signal received by the second communication unit 468 Is executed with the television 10. When this process is executed, an IP telephone session is established. SIP is well known to those skilled in the art. Therefore, a detailed description will not be given.

  In the present embodiment, second control unit 450 displays a video based on the video display information received from television 10 in a part of the display area in second display unit 466. For example, the second acquisition unit 460 displays an image based on the signal acquired by the tuner on the entire display area of the second display unit 466 (for example, the display area 22 in FIG. 2). Further, the second control unit 450 displays a video based on the video display information sent from the television 10 on a part of the display area of the second display unit 466 (for example, the display area 24 in FIG. 2). In addition, when the video based on the video display information sent from the television 10 is displayed on the second display unit 466, the television 20 sets the data corresponding to the video as display data by being thinned out, for example. The data after the thinning is displayed on the second display unit 466. Thereby, the video displayed on the display area 12 can be easily displayed on the display area 22. Further, such data thinning may be performed on the television 10 side by providing means for appropriately performing processing before the encoding unit 414.

  Next, a specific configuration of the television 10 will be described with reference to FIG. FIG. 5 is a block diagram illustrating a hardware configuration of the television 10. The television 10 includes an external input unit 504, a tuner 514, a switching circuit 516, a light receiving unit 506, an operation unit 508, a CPU 510, an antenna 560, a wireless communication circuit 562, a signal processing circuit 520, and a display driver. 528, a display 530, amplifiers 536a and 536b, speakers 540a and 540b, and a communication I / F (Interface) 570. CPU 510 includes memory 512. The signal processing circuit 520 includes a separation circuit 522 and an OSD (On Screen Display) circuit 524. An antenna 502 is connected to the tuner 514.

  A broadcast signal received by the antenna 502 is transmitted to the tuner 514. The tuner 514 selects a designated channel based on a control signal output from the CPU 510.

  The external input unit 504 receives an input of a video / audio signal from the outside of the television 10. For example, the external input unit 504 accepts an input of an audio / video signal output from a video tape recorder (VTR), a DVD player, or other video playback device. The video / audio signal is transmitted from the external input unit 504 to the switching circuit 516. The external input unit 504 may receive a video signal input and an audio signal input separately, or may receive a connection of a cable that collectively transmits these signals.

  Switching circuit 516 selectively outputs either a signal output from tuner 514 or a signal transmitted from external input unit 504 based on a switching command output from CPU 510. The output signal is input to the signal processing circuit 520.

  The memory 552 is realized as a flash memory, for example. The memory 552 includes data (for example, an IP address assigned to the television 10 (memory area 64 in FIG. 2)) for realizing the IP telephone by the television 10 and an IP telephone number assigned to the television 10 (memory area 66). And store. The separation circuit 522 separates the video signal and the audio signal based on a command output from the CPU 510. The video signal output from the separation circuit 522 is input to the OSD circuit 524. The audio signal output from the separation circuit 522 is input to the amplifiers 536a and 536b.

  The OSD circuit 524 generates a signal for displaying an image on the display 530 based on a command output from the CPU 510. This image includes, for example, the channel number, the display of the channel selected on the other television 20, the registered user of the television 20, and other character information. The character information includes a display indicating the volume level and a display indicating the operation of the television 10. The display indicating the operation includes volume up / down, contrast change, and the like.

  The OSD circuit 524 further generates a signal for displaying two channels of video on the display 530. For example, the OSD circuit 524 generates a signal for displaying an image based on a channel selected by the user of the television 10 on the entire display area, and further, an image of the channel selected by the user of the television 20. An image is generated so that a signal for displaying is displayed on a part of the display area. More specifically, the OSD circuit 524 combines the image signals of the two channels output from the separation circuit 522, and outputs a signal generated by the combination to the driver 528. The driver 528 controls display of video on the display 530 based on the signal.

  The amplifiers 536a and 536b amplify each audio signal output from the separation circuit 522 based on a command output from the CPU 510, and transmit the signals obtained by the amplification to the speakers 540a and 540b. Speakers 540a and 540b output sound based on the signals. Note that the number of speakers included in the television 10 is not limited to two, and may be one (monaural output) or three or more.

  Antenna 560 transmits and receives radio signals to and from remote control terminal 30. More specifically, when the remote control terminal 30 functions as an IP telephone receiver, the remote control terminal 30 transmits a signal corresponding to the voice uttered by the user as a radio signal. This radio signal conforms to a call format used by, for example, an existing cordless telephone. The signal is received by antenna 560 and sent to wireless communication circuit 562. The wireless communication circuit 562 converts the signal into digital data and sends it to the CPU 510. CPU 510 transmits the data to Internet 90 and realizes a call with television 20.

  Further, the wireless communication circuit 562 converts data output from the CPU 510 into an analog signal. This data corresponds to the voice of the IP phone received by the television 10 from the television 20. This sound corresponds to what the user of the television 20 speaks to the remote control terminal 40. The antenna 560 transmits the signal output from the wireless communication circuit 562 as a wireless signal. When the remote control terminal 30 is within a range where radio waves transmitted from the television 10 can be received, the user of the remote control terminal 30 can listen to sound based on the signal. In this way, an IP phone is realized.

  Next, a data structure of data stored in the television 10 will be described with reference to FIG. FIG. 6 is a diagram conceptually showing one mode of data storage in memory 552. Memory 552 includes a plurality of memory areas for storing data. Data defining permission or prohibition of data transmission from the television 10 to the television 20 is stored in the memory area 610. More specifically, data that permits or prohibits transmission of information for displaying video displayed on the display 530 of the television 10 (for example, a channel number that identifies the channel selected by the tuner 514a) is stored in the memory. Stored in area 610. In the example shown in FIG. 6, transmission of video display information is set to be possible at the present time. This setting can be changed by the user of the television 10.

  The attribute information of other televisions registered for the television 10 to make an IP phone call is stored in the memory areas 620, 622, 630, and 640.

  More specifically, data for specifying the other party (device) of the television 10 is stored in the memory area 620. The IP address assigned to each television is stored in the memory area 622. The IP telephone number assigned to each television is stored in the memory area 630. The encoding format set for each television as a transmission destination when the above-mentioned compression-encoded video signal is transmitted to each television is stored in the memory area 640. Information stored in the memory area 640 may be input by the user of the television 10 from the operation unit 508.

  Note that the encoding format set for each IP telephone number is determined by the resolution suitable for the display screen of the device corresponding to the IP telephone number. For example, a general television broadcast video is encoded with MPEG-2, but a signal encoded with MPEG-2 is considered to have a high image resolution for viewing on a general portable terminal. If the device corresponding to the IP phone number is a portable terminal (having a TV function), the IP phone number corresponding to the device is stored in the memory area 640, for example, “H.264 / MPEG-4 AVC ( MPEG-4 Part 10 Advanced Video Coding) ”is stored.

  When a user of the remote control terminal 30 operates the remote control terminal 30 to give a call instruction by IP telephone, the instruction is input to the television 10. The television 10 refers to the IP telephone number (memory area 630) stored in the memory 552, and the IP telephone number included in the command given by the remote control terminal 30 matches the IP telephone number registered in the television 10 Confirm whether or not to do. If these IP telephone numbers match, CPU 510 attempts to establish a session by IP telephone with television 20 via communication I / F 570. When the IP telephone session is established, the television 10 and the television 20 can perform voice communication.

  Next, a specific configuration of the television 20 will be described with reference to FIG. FIG. 7 is a block diagram illustrating a hardware configuration of the television 20. The television 20 includes an external input unit 704, a light receiving unit 706, an operation unit 708, a CPU 710, a tuner 714, a switching circuit 716, a signal processing circuit 720, a display driver 728, a display 730, an amplifier 736a, 736b, speakers 740a and 740b, a memory 752, an antenna 760, a wireless communication circuit 762, and a communication I / F 770. The signal processing circuit 720 includes a separation circuit 722 and an OSD circuit 724. The CPU 710 includes a memory 712. The tuner 714 is connected to an antenna 702 that receives a television broadcast signal.

  The hardware configuration of the television 20 shown in FIG. 7 is the same as the hardware configuration of the television 10 shown in FIG. Their operations are the same except for the points described later. Therefore, description of the same operation will not be repeated.

  Next, a data structure of data stored in the television 20 will be described with reference to FIG. FIG. 8 is a diagram conceptually showing one mode of data storage in memory 752. The memory 752 includes a plurality of memory areas for storing data provided for defining the operation of the television 20.

  Data for controlling the display of video based on information given to the television 20 is stored in the memory area 810. More specifically, data defining whether to display a video based on the video display information is stored in the memory area 810. In the example shown in FIG. 8, this display is currently set to “possible”. This setting can be changed by the user of the television 20 by giving a command to the operation unit 708 or the light receiving unit 706.

  Identification data for identifying a call partner with whom the television 20 makes an IP phone call is stored in a memory area 820. The IP telephone number of each call partner is stored in the memory area 830.

  When a user of the television 20 operates the remote control terminal 40 to make an IP phone call, a signal corresponding to the operation is input to the television 20. The CPU 710 refers to the memory 752 based on the input of the signal and confirms whether or not the telephone number included in the command is registered in the memory area 830. If the telephone number is registered in memory area 832, CPU 710 makes a call via communication I / F 770 based on the IP telephone number (memory area 830).

  On the other hand, when the television 20 receives an incoming IP phone call via the communication I / F 770, the phone number included in the incoming call signal is taken out by the CPU 710 and whether it matches the IP phone number registered in the memory 752 or not. Is confirmed. When these telephone numbers match, CPU 710 transmits a signal including identification data (memory area 820) corresponding to the IP telephone number from antenna 760 via wireless communication circuit 762. When the remote control terminal 40 receives the signal, the sender of the signal (that is, the sender of the IP phone) is displayed on the display of the remote control terminal 40.

  Next, remote control terminal 30 according to the present embodiment will be described with reference to FIG. FIG. 9 is a block diagram showing a configuration of functions realized by remote control terminal 30. The remote control terminal 30 has a function of controlling the television 10 and an IP telephone function.

  The remote control terminal 30 includes an operation unit 902, a generation unit 904, a transmission unit 906, a reception unit 908, a conversion unit 910, a display unit 912, an antenna 914, a wireless reception unit 916, a demodulation unit 918, A modulation unit 920, a wireless transmission unit 922, a storage unit 930, and an audio output unit 924 are provided. The operation unit 902 receives an input of an operation on the remote control terminal 30. The operation unit 902 sends a signal corresponding to the operation to the generation unit 904.

  The generation unit 904 generates a signal for controlling the operation of the television 10 based on the signal output from the operation unit 902, and sends the generated signal to the transmission unit 906. Transmitter 906 transmits the control signal. For example, the transmitting unit 906 transmits the control signal as an infrared signal.

  The receiving unit 908 receives input of speech uttered by the user of the remote control terminal 30. The reception unit 908 sends the audio signal to the conversion unit 910. The converter 910 processes the signal output from the receiver 908 and converts it into a signal format for wireless transmission.

  The display unit 912 displays an image corresponding to the signal output from the generation unit 904 or an image corresponding to the data output from the conversion unit 910. The displayed image includes a number for selecting a channel on the TV 10, a telephone number input for making an IP telephone call, and an IP telephone of the TV 20 when an incoming call is received from the other party (for example, the TV 20). Contains a number.

  The antenna 914 receives a signal transmitted from the television 10. More specifically, the antenna 914 receives a call signal generated based on an incoming call from the television 20. After the IP telephone session is established, the antenna 914 transmits the voice uttered to the receiver 908 by the user of the remote control terminal 30 in addition to the signal for the IP telephone sent from the television 20. A corresponding signal is transmitted.

  The wireless reception unit 916 receives an input of a signal received by the antenna 914. The wireless reception unit 916 sends the signal to the demodulation unit 918. Demodulation section 918 demodulates the signal and sends the signal obtained by the demodulation to conversion section 910.

  Modulation section 920 modulates the signal output from conversion section 910, generates a signal for wireless transmission, and sends the generated signal to wireless transmission section 922. The wireless transmission unit 922 transmits the signal toward the antenna 914. The antenna 914 transmits the signal. The transmitted signal is received by the antenna 560 of the television 10.

  In another aspect, when remote control terminal 30 receives a signal for an IP phone transmitted from television 10, conversion unit 910 converts the telephone number of the caller (TV 20) included in the signal. Acquire and send the number to the display unit 912. Display unit 912 displays the other party's telephone number based on the signal.

  Also, the conversion unit 910 extracts an audio signal from the signal demodulated by the demodulation unit 918 and sends the extracted audio signal to the audio output unit 924. The audio output unit 924 outputs audio based on the audio signal. For example, when the remote control terminal 30 receives an incoming call for an IP phone, the voice output unit 924 outputs a ringing tone for the phone. Thereafter, when the user of the remote control terminal 30 performs an operation of receiving the receiver, the voice output unit 924 outputs the caller's voice.

  The remote control terminal 30 will be further described with reference to FIG. FIG. 10 is a diagram showing the appearance of remote control terminal 30. The remote control terminal 30 includes an antenna 1014, an operation unit 1002, a light emitting unit 1060, and a display 1020. Specifically, the operation unit 1002 is realized by a button, a touch panel, a dial, or the like. The operation unit 1002 includes cursor buttons 1004a, 1004b, 1004c, and 1004d that define the vertical and horizontal directions of the cursor displayed on the display 1020, an enter button 1114, an up / down button 1008, and a numeric button 1006. The enter button 1114 receives an operation for confirming the content of input by the user of the remote control terminal 30. Up / down button 1008 accepts an operation for increasing or decreasing the value included in the output control signal. A number button 1006 accepts input of each number. The up / down button 1008 includes a first up button 1018a, a first down button 1018b, a second up button 1028a, and a second down button 1028b. The first up button 1018a and the first down button 1018b accept, for example, a command for selecting a channel. The second up button 1028a and the second down button 1028b accept a command for increasing or decreasing the volume.

  Remote control terminal 30 includes a button 1082 that accepts an instruction to receive or send an IP phone, and a button 1080 that accepts an instruction to end an IP phone.

  When the user of the remote control terminal 30 presses the button 1082, the remote control terminal 30 waits for a calling operation in the same manner as a normal telephone. When the user inputs a number to the number button 1006, the calling operation is performed by the IP telephone number specified by the number, and the television 10 is called. On the other hand, when the user of remote control terminal 30 presses button 1080, the IP telephone using remote control terminal 30 ends in response to the press.

  Remote control terminal 30 further includes a speaker 1070 and a microphone 1071. The speaker 1070 notifies an incoming IP phone call to the remote control terminal 30. Further, when a telephone session is established, a voice based on a voice signal sent from the other party is output. The microphone 1071 receives an utterance to the remote control terminal 30, and sends a signal corresponding to the utterance as a voice signal to a processor (not shown) that defines the operation of the remote control terminal 30. The processor generates a radio signal based on the signal and transmits the radio signal via the antenna 1014. Thereby, the telephone call by the IP telephone is realized.

  The data structure of the remote control terminal 30 will be described with reference to FIG. FIG. 11 is a diagram conceptually showing one mode of data storage in storage unit 930. Storage unit 930 is realized as a flash memory, for example. Other non-volatile memories may be used. Storage unit 930 includes a plurality of memory areas for storing data for defining the operation of remote control terminal 30.

  Data for identifying the other party registered as the calling party of the television 10 is stored in the memory area 1110. The telephone number assigned to the other party is stored in the memory area 1120. A program for executing an IP phone call by remote control terminal 30 is stored in memory area 1130. This program is executed by a processor included in the remote control terminal 30 to realize processing to be described later.

  A program for generating a signal for controlling the operation of the television 10 is stored in the memory area 1140. When the remote control terminal 30 functions as a normal terminal that controls the operation of the television 10, a control signal is generated according to this program and transmitted from the remote control terminal 30. Note that the operation of the remote control terminal 30 is not limited to that realized by the cooperation of the above-described program and processor, that is, realized by a combination of software and hardware. For example, the remote control terminal 30 may be realized by a combination of hardware such as a combination of circuits that output signals corresponding to operations on the operation unit 902.

  Next, a control structure of remote control terminal 30 according to the present embodiment will be described with reference to FIG. FIG. 12 is a flowchart showing a part of a series of operations executed by control unit 950 included in remote control terminal 30.

  In step S1210, control unit 950 detects the input of the IP telephone number and the calling command based on the button operation on operation unit 902.

  Next, in step S1220, control unit 950 generates, as generation unit 904, a control signal including an IP telephone number and a calling instruction.

  In step S1230, control unit 950 causes transmission unit 906 to transmit the control signal as an infrared signal.

  Next, in step S 1240, control unit 950 receives from TV 10 a signal indicating that an IP telephone session has been established, based on the signal received by antenna 914.

  Next, in step S1250, control unit 950 detects that an instruction to start transmission of video display information is input based on an operation for starting transmission of video display information to operation unit 902. .

  Next, in step S1260, control unit 950 generates a control signal for causing television 20 to transmit information including video display information. More specifically, the control unit 950 generates a control signal for causing the first communication unit 428 to transmit the data generated by the encoding unit 414 to the television 20 as described above.

  Next, in step S1270, control unit 950 transmits the control signal generated in step S1260 as an infrared signal.

  Next, in step S1280, control unit 950 detects that an instruction to stop transmission of video display information has been input based on an operation for stopping transmission above video display on operation unit 902. .

  Then, in step S1290, control unit 950 generates a control signal for stopping transmission of data generated by encoding unit 414 by first communication unit 428 to television 20, and in step S1291, The control signal generated in step S1290 is transmitted as an infrared signal, and the process ends.

  Next, the control structure of the television 10 will be described with reference to FIG. FIG. 13 is a flowchart showing a part of a series of operations executed by CPU 510 of television 10.

  In step S 1310, CPU 510 detects that a control signal has been received from remote control terminal 30 based on the signal output from light receiving unit 506.

  Next, in step S1312, CPU 510 obtains an IP phone call instruction and an IP phone number of television 20 from the control signal.

  Next, in step S1314, CPU 510 performs a call operation according to the IP telephone number acquired in response to the command. More specifically, CPU 510 generates an IP telephone session start request in accordance with SIP, and transmits the request (packet data) to Internet 90 via communication I / F 570. When the SIP management server 60 receives the packet, the SIP management server 60 extracts the IP telephone number of the television 20 included in the packet, and transmits an IP telephone start request to the television 20 based on the telephone number.

  Next, in step S1316, CPU 510 detects that an IP telephone session has been established with television 20. More specifically, when the television 20 transmits a signal indicating acceptance in response to a request from the SIP management server 60, the signal is transmitted to the television 10 through a session based on the signal. When CPU 510 receives the signal, CPU 510 can know that a session has been formed between television 10 and television 20.

  Next, in step S1318, CPU 510 converts the signal output from wireless communication circuit 562 (that is, the audio signal from remote control terminal 30) into a packet, and makes a call with television 20 using the packet. When the television 10 receives a packet from the television 20, an audio signal based on the packet is transmitted from the wireless communication circuit 562 through the antenna 560. The user of the remote control terminal 30 can talk with the user of the television 20 by listening to the sound based on the signal.

  Next, in step S1320, CPU 510 determines whether or not a control signal requesting the start of transmission of video display information from remote control terminal 30 has been received. This determination is performed based on, for example, whether a control signal output from operation unit 508 includes a code representing a transmission request for the video display information. When CPU 510 determines that the control signal has been received (YES in step S1320), CPU 510 switches control to step S1330. If not (NO in step S1320), CPU 510 switches control to step S1340.

  In step S1330, CPU 510 determines whether or not transmission of video display information is permitted based on data (memory area 610) stored in memory 552. If transmission of video display information is permitted (YES in step S1330), CPU 510 switches control to step S1332. If not (NO in step S1330), CPU 510 switches control to step S1340.

  Next, in step S1332, CPU 510 causes encoding unit 414 to compress and encode the video signal acquired by first acquisition unit 420 and causes the packet generation unit 416 to input the data.

  Next, in step S1334, CPU 510 causes packet generation unit 416 to generate packet data (packet 300) for communication via Internet 90 based on the data input in step S1332.

  Next, in step S1336, CPU 510 transmits the packet data (packet 300) generated in step S1334 to television 20 via communication I / F 570.

  Next, in step S 1338, CPU 510 determines whether or not a control signal requesting to stop transmission of video display information has been received from remote control terminal 30. This determination is made based on, for example, whether or not a control signal output from operation unit 508 includes a code representing a request to stop transmission of the video display information. If CPU 510 determines that the control signal has been received (YES in step S1338), it switches control to step S1340. If not (NO in step S1338), CPU 510 switches control to step S1330.

  In step S 1340, CPU 510 determines whether or not a signal indicating the end of the IP telephone is received from remote control terminal 30 based on the signal output from light receiving unit 506. More specifically, CPU 510 extracts a code that defines the operation of television 10 from the control signal, and checks whether or not the code defines the termination of the IP phone. When CPU 510 determines that the signal has been received (YES in step S1340), CPU 510 switches control to step S1350. If not (NO in step S1340), the control returns to step S1318.

  In step S 1350, CPU 510 ends the IP telephone session established with television 20 by transmitting a termination command to television 20 via communication I / F 570.

  Next, the control structure of the television 20 will be described with reference to FIG. FIG. 14 is a flowchart showing a part of a series of operations executed by CPU 710 included in television 20.

  In step S1410, CPU 710 detects that IP phone call is being performed by television 10 based on the data received from communication I / F 770.

  Next, in step S1412, CPU 710 forms an IP telephone session with television 10 based on the signal received by light receiving unit 706 (the control signal transmitted from remote control terminal 40). More specifically, when the user of the television 20 operates the remote control terminal 40 in response to an IP telephone call and responds to the call, a signal representing the response is sent to the SIP management server 60. The SIP management server 60 generates a signal indicating that the television 20 has accepted the call by the television 10 based on the signal, and transmits the generated signal to the television 10. Thereafter, when an IP telephone session is established between the television 10 and the television 20, a telephone call can be made.

  Next, in step S1414, CPU 710 receives a packet having audio data via communication I / F 770.

  Next, in step S 1416, CPU 710 converts the packet into an audio signal and sends it to radio communication circuit 762.

  Next, in step S1418, CPU 710 causes wireless communication circuit 762 to wirelessly transmit the audio signal via antenna 760. When the remote control terminal 40 is within a range in which a signal transmitted from the television 20 can be received, communication between the remote control terminal 40 and the television 20 is realized.

  Next, in step S 1420, CPU 710 detects that packet 300 having video display information has been received based on the data output from communication I / F 770. In step S1422, CPU 710 obtains user data from packet 300. More specifically, CPU 710 requests display of a video based on a code indicating that video display information is included, video display information (encoded data included in the information), and the video display information. Code is acquired and temporarily stored in a memory area secured in the memory 712.

  Next, in step S1430, CPU 710 determines whether or not video display based on video display information is permitted based on these data stored in memory 712. More specifically, the CPU 710 refers to the memory 752 (memory area 810) and determines whether the display is permitted. When CPU 710 determines that video display based on video display information is permitted (YES in step S1430), CPU 710 switches control to step S1440. If not (NO in step S1430), the process ends.

  Next, in step S1440, CPU 710 decodes the encoded data included in the video display information, and displays the video corresponding to the decoded signal in a partial area (display area 24) of display 730. The television 20 can also display an image corresponding to the channel selected by the remote control terminal 40 in the video display area 22, but when the channel is not selected by the remote control terminal 40 (in the video display area 22). Even when the video is not displayed), the video corresponding to the signal decoded in step S1440 can be displayed on the display 730.

  Next, in step S1442, CPU 710 determines whether or not packet 300 having video display information has been received based on the data output from communication I / F 770, and determines that it has been received (in step S1442). YES) The process is switched to step S1430, and if it is determined that it has not been received (NO in step S1442), the process is switched to step S1444.

  In step S1444, CPU 710 detects the end of the IP telephone call based on data transmitted from communication I / F 770 or based on data output from wireless communication circuit 762.

  In step S1450, CPU 710 ends the display of the video displayed in a part of the display area of display 730 (the video corresponding to the encoded data included in the video display information transmitted from television 10). To finish the control.

  As described above, according to the video display system according to the first embodiment of the present invention, the televisions 10 and 20 having the IP telephone function form an IP telephone session in accordance with each user's operation. When a viewer of the television 10 performs an operation of transmitting the video currently displayed on the television 10 to the television 20 as video display information, data corresponding to the video is shown in FIG. Thus, the packet 300 is encoded in the associated format, and the packet 300 including the encoded data is transmitted to the television 20.

  The television 20 takes out the encoded data from the packet 300 and displays the video corresponding to the signal obtained by decoding the data with the decoding unit 456 in the display area 24 of a part of the display area 22 of the television 20. The video displayed in the display area 24 is the same as the video displayed in the display area 12 of the television 10. Thereby, since the user of the television 10 and the user of the television 20 can view the same program and the same video (video reproduced by the DVD player 50), the topic can be shared.

  In the present embodiment, the video display information transmitted to the television 20 includes a signal obtained by encoding the video displayed on the television 10 in a format associated with the television 20, so that the television 20 carries the video. Even when the display area is configured to be significantly narrower than that of the television 10 such as a telephone, the video corresponding to the transmitted video display information can be appropriately displayed on the television 20.

  In this embodiment, the encoding format is stored in the transmission-side device (television 10). However, the format is not necessarily stored in the transmission-side device. In other words, the video display system transmits a signal for inquiring of the receiving device (TV 20) when the transmitting device is connected to the IP telephone, and in response to this, the receiving device responds to the receiving device. Information specifying an encoding format suitable for display may be transmitted to a transmission-side apparatus.

<Second Embodiment>
Hereinafter, a second embodiment of the present invention will be described. The video display system according to the present embodiment is different from the first embodiment described above in that it can be realized even when the device on the video reception information receiving side does not have a function of receiving a television broadcast signal. .

  A video display system according to the present embodiment will be described with reference to FIG. FIG. 15 is a diagram showing a configuration of a video display system 1A realized by a mobile phone 100 having an IP telephone function instead of the television 20 shown in FIG.

  The mobile phone 100 includes a display unit 101. In the video display system 1A, video based on video display information transmitted from the television 10 is displayed on the display unit 101 (instead of being displayed on the display area 24 of the television 20 in the first embodiment). The

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. In addition, the configurations described in each embodiment in the present specification are intended to be implemented in combination as much as possible.

It is a sequence chart showing communication performed between television 10,20 grade | etc., Which comprises the video display system 1 which concerns on the 1st Embodiment of this invention. 1 is a diagram illustrating a configuration of a video display system 1. FIG. It is a figure which represents notionally the structure of the packet 300 communicated between the television 10 and the television 20. FIG. 2 is a block diagram showing a configuration of functions realized by a television 10 and a television 20 constituting the video display system 1. FIG. 2 is a block diagram illustrating a hardware configuration of a television 10. FIG. 3 is a diagram conceptually showing one mode of data storage in a memory 552 of the television 10. FIG. 2 is a block diagram illustrating a hardware configuration of a television 20. FIG. FIG. 3 is a diagram conceptually showing one aspect of data storage in a memory 752 of the television 20. 3 is a block diagram showing a configuration of functions realized by remote control terminal 30. FIG. 2 is a diagram illustrating an appearance of a remote control terminal 30. FIG. FIG. 11 is a diagram conceptually showing one aspect of data storage in storage unit 930 of remote control terminal 30. It is a flowchart showing a part of a series of operations executed by control unit 950 included in remote control terminal 30. 4 is a flowchart showing a part of a series of operations executed by CPU 510 of television 10. 7 is a flowchart showing a part of a series of operations executed by CPU 710 included in television 20. It is a figure which shows the structure of the video display system which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

  1,1A video display system, 10,20 TV, 30,40 remote control terminal, 90 Internet, 50 DVD player, 60 SIP management server, 100 mobile phone, 101 display unit, 300 packets, 412, 452 SIP communication management unit, 414 Encoding unit, 416 packet generation unit, 454 confirmation unit, 456 decoding unit, 502, 702, 914 antenna, 528, 728 display driver, 536a, 536b, 736a, 736b amplifier.

Claims (7)

A television receiver connected to an information processing device that receives viewing program information from a terminal via the communication line via the communication line,
Signal acquisition means for acquiring a signal for displaying video;
A communication means for transmitting or receiving a signal according to IP (Internet Protocol);
A designation means for designating a partner device by an IP telephone number;
Format storage means for associating and storing the IP telephone number and the encoding format;
Encoding means for encoding a signal for displaying the video acquired by the signal acquisition means,
The encoding means encodes a signal for displaying the video acquired by the signal acquisition means in a format associated with the IP telephone number designated by the designation means in the format storage means,
The communication means transmits the signal encoded by the encoding means to the counterpart device designated by the designation means,
A remote control terminal for transmitting a radio signal for controlling the operation of the television receiver;
Receiving means for receiving a radio signal transmitted by the remote control terminal;
The remote control terminal is
Call processing is possible via the communication means,
An operation means for instructing transmission of a signal to the counterpart device;
The communication means starts transmission of the signal encoded by the encoding means to the counterpart device on the condition that the operation on the operation means is started, and the operation on the operation means is stopped. On condition that the transmission of the signal is stopped,
The format storage means stores H.264 / MPEG-4 AVC (MPEG-4 Part 10 Advanced Video Coding) as a format for video as a format of encoding associated with an IP telephone number, and further, for a still image Store JPEG (Joint Photographic Experts Group) as a format,
The designation means designates whether an image to be transmitted to the counterpart device is a moving image or a still image,
The encoding means encodes the signal in the second format when the designation means designates a moving image, and encodes the signal in the first format when the designation means designates a still image. ,
Information acquisition means for causing the communication means to acquire viewing program information of the counterpart apparatus designated by the designation means from the information processing apparatus;
Display means for displaying the viewing program information acquired by the information acquisition means,
Television receiver. A television receiver connected to a communication line,
Signal acquisition means for acquiring a signal for displaying video;
A communication means for transmitting or receiving a signal according to IP (Internet Protocol);
A designation means for designating a partner device by an IP telephone number;
Format storage means for associating and storing the IP telephone number and the encoding format;
Encoding means for encoding a signal for displaying the video acquired by the signal acquisition means,
The encoding means encodes a signal for displaying the video acquired by the signal acquisition means in a format associated with the IP telephone number designated by the designation means in the format storage means,
The television receiving apparatus, wherein the communication means transmits the signal encoded by the encoding means to a counterpart apparatus specified by the specifying means. A remote control terminal for transmitting a radio signal for controlling the operation of the television receiver;
Receiving means for receiving a radio signal transmitted by the remote control terminal;
The remote control terminal is
Call processing is possible via the communication means,
An operation means for instructing transmission of a signal to the counterpart device;
The television according to claim 2, wherein the communication unit transmits the signal encoded by the encoding unit to a partner apparatus specified by the specifying unit on condition that an operation has been performed on the operation unit. Receiver device.   The communication means starts transmission of the signal encoded by the encoding means to the counterpart device on the condition that the operation on the operation means is started, and the operation on the operation means is stopped. The television receiver according to claim 3, wherein transmission of the signal is stopped on the condition of The format storage means stores a first format as a format for a moving image as a format of encoding associated with an IP telephone number, and further stores a second format as a format for a still image,
The designation means designates whether an image to be transmitted to the counterpart device is a moving image or a still image,
The encoding means encodes the signal in the second format when the designation means designates a moving image, and encodes the signal in the first format when the designation means designates a still image. The television receiver according to any one of claims 2 to 4. The first format is H.264 / MPEG-4 AVC (MPEG-4 Part 10 Advanced Video Coding) format,
6. The television receiver according to claim 5, wherein the second format is a JPEG (Joint Photographic Experts Group) format. Via the communication line, connected to an information processing device that receives viewing program information from the terminal via the communication line,
Information acquisition means for causing the communication means to acquire viewing program information of the counterpart apparatus designated by the designation means from the information processing apparatus;
The television receiver according to claim 2, further comprising display means for displaying the viewing program information acquired by the information acquisition means.

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