JP2012235331A - Telephone system, television receiver, and remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to communicate via free videophone in a telephone system, to enable communication via videophone without feeling anxious about a telephone charge.SOLUTION: When a video signal and an audio signal of videophone are received, a TV receiver 2 displays the received video of the videophone on a liquid crystal display panel 9, and wirelessly transmits the received voice signal to a remote controller 3. The remote controller 3 then outputs a voice based on the received voice signal of the videophone to headphones 12. When the user transmits a voice signal of the videophone, the remote controller 3 transmits the voice signal of user voice input from an incorporated microphone to the TV receiver 2 through radio. Then, the TV receiver 2 transmits the received voice signal of the user voice and the video signal of a user video imaged by a compact camera 8 to another communication device.

Description

  The present invention relates to a telephone system including a television receiver and a remote controller capable of transmitting and receiving audio signals to and from the television receiver.

  Conventionally, a television receiver having a function of connecting to the Internet is known. If this type of television receiver can be provided with an Internet telephone function, it is not only very convenient, but both telephone speakers can use free internet such as Skype (Sky peer-to-peer). By using software for telephone service, you can make free calls to any country. An Internet telephone system using this type of television receiver is described in, for example, Patent Document 1 below.

  The system disclosed in Patent Document 1 includes a television receiver having a function of connecting to the Internet, and a remote controller (hereinafter abbreviated as a remote controller) capable of transmitting and receiving audio signals to and from the television receiver. It consists of and. In this system, when an audio signal from the other party is transmitted, the television receiver converts the Internet telephone audio signal into a radio signal and transmits the radio signal to the remote controller, and the remote controller receives the radio signal received from the television receiver. The signal is converted into an audio signal and output to a headset (connected to a remote control) so that the user can hear the audio output from the headset. When the user transmits an audio signal to the other party, the remote controller generates an audio signal based on the user's audio input from the headset, and then converts the generated audio signal into a radio signal to convert the audio signal to the television. Transmit to the receiver, and the television receiver converts the radio signal received from the remote control into an audio signal for the Internet telephone, and transmits the audio signal to the communication device used by the other party via the Internet. It has become. Furthermore, in the above system, the user can listen to the sound of the television broadcast from the headset connected to the above remote control even in the TV mode (the mode in which the above system is used as a television system). is there.

  According to the above system, in the telephone mode (the mode in which the system is used as an Internet telephone), as described above, both speakers of the telephone use software for free Internet telephone service such as Skype. Thus, the user can make a call with a partner in any country for free. Also, in the TV mode, the user can choose to listen to the TV broadcast sound from the headset connected to the above remote control, so that the TV can be concentrated even in the middle of the night or when there is noisy surroundings. You can watch the broadcast.

JP 2008-141487 A

  By the way, with a recent personal computer, it is possible to use a free videophone service compatible with high-quality video provided by software for free Internet telephone service such as Skype. Therefore, when both speakers of the telephone use the above free videophone service, it is possible to make a videophone call free of charge.

  However, in the system described in Patent Document 1, as described above, despite the existence of software for Internet phone service that provides a free video phone service that supports high-quality video, a user can make a video phone call. There was a problem that could not make a call.

  The present invention solves the above-described problem, and enables a user to make a call by a free videophone so that the user can make a call by a videophone without worrying about a telephone charge. In addition, when the user is watching the television broadcast on the television receiver in the system, it is possible to concentrate on watching the television broadcast even at midnight or when there is noise around it. The purpose is to provide a telephone system.

  In order to solve the above problems, the invention of claim 1 is directed to a telephone system including a television receiver and a remote controller capable of transmitting and receiving audio signals to and from the television receiver. The receiver receives video and audio signals including video signals and audio signals of videophones from other communication devices via the Internet, and received by the video and audio signal receiving means. Display means for displaying video based on the video signal; TV-side radio signal transmitting means for wirelessly transmitting the audio signal received by the video / audio signal receiving means to the remote controller; and a user located in front of the display means. Shooting means for shooting and outputting a video signal of the user's video, transmitted from the remote controller. A television-side wireless signal receiving means for receiving a wireless signal including an audio signal for the user's voice, a video signal for the user's image captured by the photographing means, and the television-side wireless signal receiving means Signal converting means for converting an audio signal of the user's audio into a video signal and audio signal in a format according to the Internet protocol, and a video signal and audio in a format according to the Internet protocol after conversion by the signal converting means. And a video / audio signal transmitting means for transmitting a signal to another communication device via the Internet, and the remote controller is inputted by the voice input means for inputting a user's voice and the voice input means. Remote-control-side radio signal transmitting means for transmitting a radio signal including a voice signal for the user's voice; The remote control side radio signal receiving means for receiving the radio signal including the audio signal transmitted by the television side radio signal transmitting means, and the audio output means for outputting the sound based on the audio signal received by the remote control side radio signal receiving means And a connection means for making a connection.

  According to a second aspect of the present invention, in the telephone system according to the first aspect, the sound output means is a headphone.

  According to a third aspect of the present invention, there is provided a telephone system including a television receiver and a remote controller capable of transmitting and receiving audio signals to and from the television receiver, wherein the television receiver is connected via the Internet. A video / audio signal receiving means for receiving a video signal including a video signal and an audio signal of a videophone and an audio signal from another communication device, and a video based on the video signal received by the video / audio signal receiving means is displayed. Photographing a user located in front of the display means, a television-side radio signal transmitting means for wirelessly transmitting the audio signal received by the video / audio signal receiving means to the remote controller, and the user's video The image capturing means for outputting the video signal about the user's voice transmitted from the remote controller. TV-side radio signal receiving means for receiving a radio signal including the audio signal of the user, a video signal for the user's video shot by the shooting means, and an audio signal for the user's voice received by the TV-side radio signal receiving means Is converted into a video signal and an audio signal in a format according to the Internet protocol, and a video signal and an audio signal in a format according to the Internet protocol after the conversion by the signal conversion unit are transmitted via the Internet. Video and audio signal transmitting means for transmitting to other communication devices, wherein the remote controller is a voice input means for inputting the user's voice, and an audio signal for the user's voice input by the voice input means. Remote-control-side radio signal transmitting means for transmitting a radio signal including the TV-side radio signal transmitter Those with a remote control radio signal receiving means for receiving a radio signal including an audio signal transmitted, and audio output means for outputting a sound based on the sound signal received by the remote control radio signal receiver by.

  According to a fourth aspect of the present invention, there is provided a television receiver capable of transmitting and receiving an audio signal to and from a remote controller. The video signal includes a videophone video signal and an audio signal from another communication device via the Internet. And audio / video signal receiving means, display means for displaying video based on the video signal received by the audio / video signal receiving means, and audio signal received by the audio / video signal receiving means wirelessly A television-side radio signal transmitting means for transmitting to a remote controller, a photographing means for photographing a user located in front of the display means, and outputting a video signal about the user's video, transmitted from the remote controller, Television-side radio signal receiving means for receiving a radio signal including an audio signal for the user's voice, and the photographing A signal for converting a video signal for a user's video shot by a stage and a voice signal for a user's voice received by the television side radio signal receiving means into a video signal and a voice signal in a format according to the Internet protocol Conversion means, and video and audio signal transmission means for transmitting video signals and audio signals in a format according to the Internet protocol after conversion by the signal conversion means to other communication devices via the Internet. .

  According to a fifth aspect of the present invention, there is provided a remote controller capable of transmitting / receiving audio signals to / from a television receiver, audio input means for inputting user's voice, and user's input by the audio input means. Remote-control-side radio signal transmission means for transmitting a radio signal including a voice signal for audio, remote-control-side radio signal reception means for receiving a radio signal including a voice signal transmitted from the television receiver, and the remote-control-side radio And connecting means for electrically connecting to sound output means for outputting sound based on the sound signal received by the signal receiving means.

  According to a sixth aspect of the present invention, in the remote controller according to the fifth aspect, the sound output means is a headphone.

  According to the first and third aspects of the invention, when a videophone video signal and an audio signal are transmitted from another communication device (used by the other party) via the Internet, the television receiver The video based on the video signal of the received videophone is displayed on the display means, and the received audio signal is wirelessly transmitted to the remote controller. Then, the remote controller outputs sound based on the received audio signal of the videophone. When the user transmits an audio signal to another communication device (used by the other party) via the Internet, the remote controller wirelessly transmits the input audio signal of the user's voice to the television receiver. Send to. Then, the television receiver converts the received audio signal for the user's voice and the video signal for the user's video captured by the imaging means into a video signal and an audio signal in a format according to the Internet protocol. Then, the converted video signal and audio signal in accordance with the Internet protocol are transmitted to another communication device (used by the other party) via the Internet. Thus, both speakers of the telephone use software for free Internet telephone service such as Skype, so that the user can make a telephone call using a free videophone. Accordingly, the user can make a videophone call without worrying about the telephone charge.

  According to the second aspect of the present invention, since the sound based on the audio signal wirelessly received by the remote controller from the television receiver is output from the headphones, the user can use the television receiver in the system to When watching a broadcast, it is possible to concentrate on watching a television broadcast even at night or when there is noise around it. In addition, the degree of freedom during viewing by the user is higher than when a wired headphone is connected directly to the television receiver.

  According to the invention of claim 4, the same effect as that of claim 1 can be obtained in the television receiver capable of transmitting and receiving audio signals to and from the remote controller.

  According to the invention of claim 5, the same effect as that of claim 1 can be obtained in the remote controller capable of transmitting and receiving audio signals to and from the television receiver.

  According to the invention of claim 6, the same effect as that of claim 2 can be obtained in the remote controller capable of transmitting and receiving audio signals to and from the television receiver.

The lineblock diagram of the telephone system concerning one embodiment of the present invention. The front view of the remote control in FIG. The electrical block block diagram of the same remote control. FIG. 2 is an electrical block configuration diagram of the TV receiver in FIG. 1.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, an example will be described in which the television receiver in the telephone system of the present invention is an IPTV (Internet Protocol Television) type network television receiver (hereinafter referred to as a TV receiver). FIG. 1 shows a telephone system 1 including a TV receiver 2 and a remote controller 3 (hereinafter abbreviated as a remote controller) capable of transmitting and receiving audio signals to and from the TV receiver 2.

  As shown in FIG. 1, the TV receiver 2 is connected to a LAN 6 via a LAN (Local Area Network) cable 4, and is connected to the Internet 7 via the LAN 6 and a router 5. Further, the TV receiver 2 and the remote controller 3 can wirelessly transmit and receive video signals and audio signals of videophones and television broadcasts.

  The TV receiver 2 shoots a liquid crystal display panel 9 (display means) for displaying video based on the received video signal and a user located in front of the liquid crystal display panel 9 and outputs a video signal for the video of the user. A small camera 8 (photographing means) for outputting and a radio signal transmitting / receiving unit 10 (television-side radio signal transmitting means and television-side radio signal receiving means) for transmitting and receiving audio signals to and from each other wirelessly with the remote controller 3 ing. In addition, the remote controller 3 includes a wireless signal transmission / reception unit 11 (remote control side wireless signal transmission unit and remote control side wireless signal reception unit) that wirelessly transmits and receives audio signals to and from the TV receiver 2, and headphones. 12 (audio output means).

  In the above telephone system 1, when the video signal and the audio signal of the videophone are transmitted from the other communication device (used by the other party) via the Internet 7, the TV receiver 2 receives the video signal. An image based on the video signal of the videophone is displayed on the liquid crystal display panel 9 and the received audio signal is transmitted to the remote control 3 wirelessly. The remote controller 3 then outputs audio based on the received videophone audio signal to the headphones 12. When the user transmits an audio signal to another communication device (used by the other party) via the Internet 7, the user's voice input from the remote controller 3 with the built-in microphone 34 (see FIG. 2) is used. Is transmitted to the TV receiver 2 wirelessly. Then, the TV receiver 2 converts the received audio signal for the user's voice and the video signal for the user's video taken by the small camera 8 into a video signal and an audio signal in a format according to the Internet protocol. Then, the converted video signal and audio signal in accordance with the Internet protocol are transmitted to another communication device (used by the other party) via the Internet 7. Thus, both speakers of the videophone use software for free Internet phone service such as Skype, so that the user can make a call using the free videophone.

  Next, with reference to FIG. 2, various instruction operation keys and the like included in the remote controller 3 will be described. The remote controller 3 includes a power key 22, a menu key 23, a numeric input key 24, a channel up key 25, and a channel down key 26 in addition to the wireless signal transmitting / receiving unit 11 that transmits wireless remote control signals corresponding to various instruction operation keys. , Volume up key 27, volume down key 28, cross key 29, enter key 30, headphone button 31, telephone button 32, and headphone volume adjustment button 33.

  The power key 22 is a key for instructing on / off of the power of the TV receiver 2. The menu key 23 is a key for instructing display of a menu screen for various settings for the TV receiver 2. The numeric input key 24 is used for channel selection and input of a telephone number using a software keyboard. The channel up key 25 and the channel down key 26 are used for channel selection. The volume up key 27 and the volume down key 28 are used to instruct the adjustment of the volume of the sound output from the speaker 59 (see FIG. 4) of the TV receiver 2. The cross key 29 and the decision key 30 are used for selecting items on the menu screen.

  The headphone button 31 is a button for enabling the output of sound from the headphones 12. When the headphone button 31 is pressed, normally, no sound is output from the speaker 59 (see FIG. 4) of the TV receiver 2, but the user performs the setting using the menu screen described above. Whether or not sound is output from the speaker 59 when the headphone button 31 is pressed can be selected (whether or not to mute).

  In addition, the telephone button 32 changes the mode of the telephone system 1 from a television mode (a mode in which the telephone system 1 is used as a television system) to a telephone mode (including the TV receiver 2). Button for switching to a mode used as When the telephone button 32 is pressed, the function of the videophone by the telephone system 1 is normally enabled. However, the user performs the setting using the above menu screen, so that the TV when the telephone button 32 is pressed is set. Enable / disable of the telephone function can be selected. When the user has selected to disable the videophone function when the telephone button 32 is pressed on the menu screen, the telephone system 1 is connected to the normal (voice call only) Internet when the telephone button 32 is pressed. Act as a phone.

  When the user presses the telephone button 32, the telephone system 1 switches to the telephone mode, and the liquid crystal display panel 9 of the TV receiver 2 becomes a screen for inputting a telephone number. The user can input a telephone number using a software keyboard using the numeric input keys 24 of the remote controller 3 in a state where the above-described screen for inputting the telephone number is displayed on the liquid crystal display panel 9.

  The headphone volume adjustment button 33 is used for instructing the adjustment of the volume of sound output from the headphones 12 when the headphones 12 are used. Thus, by providing the headphone volume adjustment button 33 on the remote controller 3 side, the volume of the sound output from the headphones 12 by the user can be easily compared with the case where the headphone volume adjustment button is provided on the TV receiver 2 side. Adjustments can be made.

  The remote controller 3 also includes a microphone 34 (voice input means) for inputting user's voice and a headphone jack 35 (connection means) for electrical connection with the headphones 12. The user inputs a telephone number using the software keyboard and uses the remote control 3 to instruct connection to a connected device corresponding to the telephone number. When the connection with the connection device is completed, the user uses the microphone 34 of the remote controller 3 and the headphones 12 (or the microphone 34 of the remote control 3 and the speaker 59 of the TV receiver 2) to connect the connection device. You can talk to the other party you use.

  FIG. 3 is a schematic electrical block diagram of the remote controller 3 described above. In addition to the wireless signal transmission / reception unit 11, the microphone 34, and the headphone jack 35, the remote control 3 includes a CPU 40 that controls the entire apparatus, and various programs and data including a control program 42 that is used to control the apparatus by the CPU 40. And an amplifier 43 for amplifying the audio signal. The remote controller 3 is connected to the headphones 12 via the headphone jack 35. In addition, the remote control 3 performs an audio signal processing circuit 44 that performs various audio signal processing including amplification processing and noise removal processing on the audio signal of the user's audio input using the microphone 34, and the above-described FIG. And an operation unit 45 including various instruction operation keys shown in FIG. Based on the control program 42, the CPU 40 converts an audio signal in the form of a radio signal received by the radio signal transmission / reception unit 11 into a normal audio signal and outputs it to the amplifier 43, or an audio signal processing circuit 44. The processing of converting the audio signal after the processing into an audio signal in the form of a radio signal and outputting it to the radio signal transmitting / receiving unit 11 is also performed.

  FIG. 4 is a schematic electrical block diagram of the TV receiver 2 described above. In addition to the small camera 8, the liquid crystal display panel 9, and the wireless signal transmission / reception unit 10, the TV receiver 2 includes a CPU 51 that controls the entire apparatus, a tuner 52, and a network card 53 (video / audio signal receiving means, And a video / audio signal transmitting means), a decoder 54, a video signal processing circuit 55, an electrode driving circuit 56, an audio signal processing circuit 57, an amplifier 58, and a speaker 59.

  The tuner 52 sends the digital television broadcast received via the antenna 61 to the decoder 54. The network card 53 is connected to the LAN 6 shown in FIG. 1 via the LAN terminal 2a and the LAN cable 4 shown in FIG. This is an interface circuit for transmitting and receiving a video signal and a voice signal including a video signal and a voice signal of a telephone. The network card 53 can receive video signals and audio signals including video signals and audio signals of videophones from other communication devices via the Internet 7, and a user who has taken a picture with the small camera 8. The video signal based on the video and the audio signal based on the audio signal received by the wireless signal transmitting / receiving unit 10 can be transmitted to other communication devices via the Internet 7.

  The decoder 54 incorporates not only a decoder for decoding digital television broadcasts but also a decoder for decoding contents of various network services, such as digital television broadcasts sent from the tuner 52 and network cards 53. The network service content sent from is decoded, and the video signal and the audio signal based on the digital television broadcast or the network service content are output to the video signal processing circuit 55 and the audio signal processing circuit 57, respectively.

  The video signal processing circuit 55 receives the video signal sent from the decoder 54 (based on digital television broadcast or network service content) or the video phone video signal sent from the network card 53 via the CPU 51. Then, various video signal processing is performed and sent to the electrode drive circuit 56. The electrode driving circuit 56 displays an image based on the video signal on the liquid crystal display panel 9 by driving the display electrode based on the video signal received from the video signal processing circuit 55.

  The audio signal processing circuit 57 is an audio signal sent from the decoder 54 (based on digital television broadcast or network service content) or an audio signal in the form of a radio signal sent from the radio signal transmitting / receiving unit 11 of the remote controller 3. After performing various audio signal processing and D / A conversion processing on the normal audio signal based on the above, the analog audio signal after these processing is sent to the amplifier 58. The amplifier 58 amplifies the analog audio signal received from the audio signal processing circuit 57 and outputs it to the speaker 59. The speaker 59 outputs sound based on the analog sound signal after being amplified by the amplifier 58.

  The TV receiver 2 also has a memory 60 that stores various control programs and data. The programs stored in the memory 60 include a control program 61 that is a program for controlling the TV receiver 2 and free Internet videophone service software such as Skype (Sky peer-to-peer). IP phone software 62 is included. The processing performed by the CPU 51 in accordance with the free IP phone software 62 includes a video signal for the user's video captured by the small camera 8 and a voice signal for the user's voice received by the wireless signal transmission / reception unit 10 as an Internet protocol. According to the Internet protocol received by the network card 53, processing for converting the video signal in the format according to the Internet protocol received by the network card 53 into a normal video signal, and the Internet received by the network card 53 A process of converting an audio signal in a format according to the protocol into a normal audio signal is included. The CPU 51 and the free IP phone software 62 correspond to the signal conversion means in the claims.

  When the TV receiver 2 receives a videophone video signal and an audio signal by the network card 53, the CPU 51 converts the received videophone video signal and audio signal in a format according to the Internet protocol to a free IP. After converting to a normal video signal and an audio signal using the telephone software 62, the converted video signal is sent to the video signal processing circuit 55 to display the videophone video on the liquid crystal display panel 9, and the normal (remote control) 3 is set to output videophone audio from the headphone 12 connected to 3), the converted normal audio signal is further converted into an audio signal in the form of a radio signal, and the format of this radio signal is Is transmitted to the remote control 3 by the wireless signal transmission / reception unit 10, and the videophone sound is output from the headphones 12 connected to the remote control 3. To.

  As described above, according to the telephone system 1 of the present embodiment, when a videophone video signal and audio signal are transmitted from another communication device (used by the other party) via the Internet 7. The TV receiver 2 displays an image based on the received video signal of the videophone on the liquid crystal display panel 9 and transmits the received audio signal to the remote control 3 wirelessly. Then, the remote controller 3 outputs sound based on the received videophone audio signal from the headphones 12. When the user transmits an audio signal to another communication device (used by the other party) via the Internet 7, the remote control 3 outputs an audio signal regarding the user's voice input from the built-in microphone 34. It transmits to the TV receiver 2 by radio. Then, the TV receiver 2 converts the received audio signal for the user's voice and the video signal for the user's video taken by the small camera 8 into a video signal and an audio signal in a format according to the Internet protocol. Then, the converted video signal and audio signal in accordance with the Internet protocol are transmitted to another communication device (used by the other party) via the Internet 7. Thus, both speakers of the telephone use software for free Internet telephone service such as Skype, so that the user can make a telephone call using a free videophone. Accordingly, the user can make a videophone call without worrying about the telephone charge.

  Further, according to the telephone system 1 of the present embodiment, since the sound based on the audio signal received wirelessly by the remote controller 3 from the TV receiver 2 is output from the headphones 12, the user can receive the TV image in the telephone system 1. When watching the television broadcast on the machine 2, it is possible to concentrate on watching the television broadcast even at midnight or when there is noise around. In addition, the degree of freedom during viewing by the user is higher than when a wired headphone is connected directly to the TV receiver 2.

  In addition, this invention is not restricted to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, in the above embodiment, the videophone sound is output from the headphones 12 connected to the remote control 3, but a speaker may be provided on the remote control and the videophone sound may be output from the speaker. . The speaker provided in the remote controller corresponds to the sound output means in claim 3.

1 Telephone system 2 TV receiver (television receiver)
3 Remote control
7 Internet 8 Small camera (photographing means)
9 Liquid crystal display panel (display means)
10 Radio signal transmitter / receiver (TV-side radio signal transmitting means, TV-side radio signal receiving means)
11 Radio signal transmitter / receiver (remote control side radio signal transmission means, remote control side radio signal reception means)
12 Headphone (Audio output means)
34 Microphone (voice input means)
35 Headphone jack (connection method)
51 CPU (signal conversion means)
53 Network card (video / audio signal receiving means, video / audio signal transmitting means)
62 Free IP phone software (signal conversion means)

Claims (6)

In a telephone system including a television receiver and a remote controller capable of transmitting and receiving audio signals to and from the television receiver,
The television receiver is
Video and audio signal receiving means for receiving a video signal and an audio signal including a video signal and an audio signal of a videophone from other communication devices via the Internet;
Display means for displaying video based on the video signal received by the video / audio signal receiving means;
A television-side wireless signal transmitting means for wirelessly transmitting the audio signal received by the video / audio signal receiving means to the remote controller;
A photographing means for photographing a user located in front of the display means and outputting a video signal of the user's video;
A television-side radio signal receiving means for receiving a radio signal including an audio signal about a user's voice transmitted from the remote controller;
The video signal for the user's video captured by the imaging means and the audio signal for the user's voice received by the television-side radio signal receiving means are converted into a video signal and an audio signal in a format according to the Internet protocol. Signal converting means for
Video and audio signal transmission means for transmitting the video signal and audio signal in a format according to the Internet protocol after conversion by the signal conversion means to other communication devices via the Internet,
The remote controller is
Voice input means for inputting user's voice;
Remote-control-side radio signal transmitting means for transmitting a radio signal including a voice signal for the user's voice input by the voice input means;
Remote control side radio signal receiving means for receiving a radio signal including an audio signal transmitted by the television side radio signal transmitting means;
A telephone system comprising: connection means for electrically connecting to sound output means for outputting sound based on the sound signal received by the remote control-side radio signal receiving means.   The telephone system according to claim 1, wherein the voice output unit is a headphone. In a telephone system including a television receiver and a remote controller capable of transmitting and receiving audio signals to and from the television receiver,
The television receiver is
Video and audio signal receiving means for receiving a video signal and an audio signal including a video signal and an audio signal of a videophone from other communication devices via the Internet;
Display means for displaying video based on the video signal received by the video / audio signal receiving means;
A television-side wireless signal transmitting means for wirelessly transmitting the audio signal received by the video / audio signal receiving means to the remote controller;
A photographing means for photographing a user located in front of the display means and outputting a video signal of the user's video;
A television-side radio signal receiving means for receiving a radio signal including an audio signal about a user's voice transmitted from the remote controller;
The video signal for the user's video captured by the imaging means and the audio signal for the user's voice received by the television-side radio signal receiving means are converted into a video signal and an audio signal in a format according to the Internet protocol. Signal converting means for
Video and audio signal transmission means for transmitting the video signal and audio signal in a format according to the Internet protocol after conversion by the signal conversion means to other communication devices via the Internet,
The remote controller is
Voice input means for inputting user's voice;
Remote-control-side radio signal transmitting means for transmitting a radio signal including a voice signal for the user's voice input by the voice input means;
Remote control side radio signal receiving means for receiving a radio signal including an audio signal transmitted by the television side radio signal transmitting means;
A telephone system comprising voice output means for outputting voice based on the voice signal received by the remote-control-side radio signal receiving means. In a television receiver capable of transmitting and receiving audio signals to and from a remote controller,
Video and audio signal receiving means for receiving a video signal and an audio signal including a video signal and an audio signal of a videophone from other communication devices via the Internet;
Display means for displaying video based on the video signal received by the video / audio signal receiving means;
A television-side wireless signal transmitting means for wirelessly transmitting the audio signal received by the video / audio signal receiving means to the remote controller;
A photographing means for photographing a user located in front of the display means and outputting a video signal of the user's video;
A television-side radio signal receiving means for receiving a radio signal including an audio signal about a user's voice transmitted from the remote controller;
The video signal for the user's video captured by the imaging means and the audio signal for the user's voice received by the television-side radio signal receiving means are converted into a video signal and an audio signal in a format according to the Internet protocol. Signal converting means for
A television comprising: a video / audio signal transmitting unit configured to transmit a video signal and an audio signal in a format according to the Internet protocol after conversion by the signal converting unit to another communication device via the Internet. Receiver. In a remote controller that can send and receive audio signals to and from a television receiver,
Voice input means for inputting user's voice;
Remote-control-side radio signal transmitting means for transmitting a radio signal including a voice signal for the user's voice input by the voice input means;
A remote control-side radio signal receiving means for receiving a radio signal including an audio signal transmitted from the television receiver;
A remote controller comprising: connection means for electrically connecting to sound output means for outputting sound based on the sound signal received by the remote-control-side wireless signal receiving means.   The remote controller according to claim 5, wherein the sound output unit is a headphone.

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