JP2005287013A - Communication system and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a general television telephone system is large-scale and too complicated. <P>SOLUTION: At first, a signal 101 for requesting an entry to communication is transmitted from a television receiver 1 to a portable television telephone at the time of starting communication (at the time of connection). The portable television telephone transmits an entry response signal 102 together with a piece ID1 of key information to the television receiver. Next, when a switching button of the portable television telephone is depressed (104), a connection request 105 is transmitted to the television receiver together with a piece ID2 of key information. Here, the piece ID1 of key information and the piece ID2 of key information are compared with each other (key determination 106). When they are not coincident with each other (No), the succeeding processing is not executed. Therefore, the connection is not permitted. When they ID1, ID2 are coincident with each other in the key determination (YES), a connection permission signal for permitting the connection is transmitted from the television receiver 1 to the portable television telephone. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication technology using a mobile phone, and more particularly, to a cooperation technology between a mobile phone having a videophone function and another electronic device having a communication function and a monitor display function.

  As a communication system using a mobile phone and a television receiver, in a system comprising a home server, a video phone system, and a mobile video phone, a video signal transmitted to a mobile video phone call partner is transmitted to the video phone system. A system has been proposed in which it is possible to select whether to use the side camera image or the mobile video phone camera image (see, for example, Patent Document 1).

JP 2003-125365 A

  A general videophone system is difficult to use in a general household from the viewpoint of cost and location because the system is large-scale and too complicated. Further, as a method of using the mobile videophone, for example, as shown in FIG. 11A, unlike the general mobile phone style, the mobile phone 103 is set from the front of the user 100 as indicated by an arrow. It becomes the style to look into. In such a style, since the camera 107 is positioned in front, the user's own video can be sent to the other party, but there is a problem that it is difficult to catch the voice from the other party by the ear. Further, in the style in which the user 100 uses the general mobile phone 103 as shown in FIG. 11B, it is necessary to bring the speaker 107 close to the user's 100 ear and the microphone 105 close to the mouth. Is difficult to send to the other party, and it is difficult to see the other party's video.

  An object of the present invention is to provide a communication technology including a new mobile videophone style using a mobile phone.

  According to one aspect of the present invention, there is provided a communication system including a portable terminal having a first communication unit for a call, and a television receiver having a display unit and a tuner unit for receiving a broadcast. The terminal has a second communication unit that wirelessly transmits information from the portable terminal to the television receiver, and the television receiver is transmitted from the second communication unit by wireless communication. There is provided a communication system including a third communication unit that receives information wirelessly and an output control unit that performs control to output the information.

  According to the communication system, information received by the mobile terminal can be output from the television receiver.

  Entry that is a response indicating that the transmitting side, which is either the television receiver or the mobile terminal, transmits an entry request signal for a request to enter communication, and the receiving side that has received the entry request signal wants to start communication By sending a response signal to the other party, the portable terminal and the television receiver are controlled to be in a connectable state. The portable terminal further includes a direct signal transmission unit that sends a direct signal that can directly identify a television receiver that actually wants to communicate in the connectable state, and the television receiver receives the direct signal. A direct signal receiving unit is provided. Thereby, a specific device can be directly selected from the connection candidate devices.

  The television receiver is based on first key information sent from the second communication unit and received by the third communication unit, and second key information sent accompanying the direct signal. The portable terminal device includes a key determination unit that identifies a mobile terminal that has transmitted a connection request and determines whether or not to grant connection permission. The portable terminal and the television receiving device include an encryption / decryption unit that encrypts or decrypts the information with at least one of the first key information and the second key information. To do. Thereby, the terminal connected can be identified and access can be ensured.

  When the television receiving device receives the entry response signal, the television receiving device displays an icon for notifying the fact on the display unit. The user can know from this icon that the mobile terminal is connected.

  The television receiver can prepare several icons in advance and select which icon to display according to the received intensity of the received radio wave.

  The television receiver performs display control for forming a sub-screen for displaying information transmitted from the portable terminal on the display unit when sending a connection permission signal in response to the direct signal. And By providing a small screen for viewing information, a display based on television broadcasting can be continuously viewed.

  When the portable terminal and the television receiver are communicating wirelessly, and receiving a signal indicating that the communication sent from the direct signal transmitting unit is to be terminated together with third key information, the third key information is A determination unit is provided that compares with at least one of the first and second key information and determines whether or not to actually permit cutting based on the comparison result. Thereby, it is possible to prevent communication from being disconnected due to a disconnection request from an irrelevant portable terminal.

  The information is transmitted from the portable terminal to the television receiver by one-way communication. Thereby, it becomes easy to secure a band between the two, and it becomes possible to view high-quality information. In addition to the communication system, if the information distribution server that can be associated with the second communication unit is included, various information can be viewed on the television receiver via the portable terminal.

  According to another aspect of the present invention, a first communication unit for calling, a second communication unit that wirelessly transmits information to another device having a communication unit and a display unit, and the first And a communication control unit that controls the information received from the communication unit to perform one-way communication with the other device.

  A television receiver having a display unit, a broadcast receiving tuner unit, a wireless communication unit, and a direct reception unit, wherein when the information received by the wireless communication unit is displayed on the display unit, a connection candidate terminal The first key information received in association with the wireless entry response from the first key information and the second key information attached to the connection request received by the direct receiving unit from the actual connection terminal are collated, and based on the collation result Thus, a television receiver is provided that includes a determination unit that determines whether or not to permit transmission of actual information through wireless communication.

  According to still another aspect of the present invention, a portable terminal having a first communication unit for calling and a second communication unit for wireless communication, a display unit, a tuner for receiving broadcasts, and a first unit for wireless communication. A communication method comprising a television receiver having a communication unit, and a first step of making a request and response regarding entry between the mobile terminal and the television receiver; A second step of directly requesting a connection from the portable terminal to the specific television receiver; a third step of issuing a connection permission from the specific television receiver to the portable terminal by radio; and the portable terminal And a fourth step of performing one-way communication of information received by the mobile terminal to the television receiver wirelessly.

  According to the present invention, there is an advantage that a call can be made without changing the call style of the telephone by viewing the information sent from the mobile phone on the television receiver side. In addition, if one-way communication is performed from a mobile phone to a television receiver, high-quality video can be displayed or music can be output.

  The inventor thought that it would be convenient if only the video acquired from the mobile phone was transmitted to a television receiver or the like at home in a wireless manner and the video could be viewed on the television receiver. Furthermore, when there are many television receivers, it was desired to display an image only on a desired television receiver nearby. To that end, we propose a new usage style for mobile phones. New styles include, for example, use as a normal mobile phone outdoors, use as a video phone indoors, and selecting a specific television receiver from a plurality of television receivers and projecting video etc. on it It is.

  The communication technique according to the first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a communication system according to the present embodiment. As shown in FIG. 1, a communication system A according to the present embodiment includes a television receiver 1, a mobile videophone 3, and a public network (network) 5. In addition to the communication function, the mobile videophone 3 has a monitor screen 21, an input unit 23, and an imaging device 25. The mobile videophone 3 communicates with the other party via the public network 5 and acquires various information. You can do it. On the other hand, the television receiver 1 has a television screen 11 as well as a communication function. Furthermore, although the imaging device 17 may be provided, it is not an essential configuration. A sub-screen 15 can be displayed on the television screen 11 as described later. FIG. 3 is a functional block diagram showing a system configuration example of the mobile videophone 3 according to the present embodiment. As shown in FIG. 3, the mobile videophone 3 according to the present embodiment includes a control unit 51, a wireless communication unit 52 such as a LAN, a mobile phone communication unit 53, an imaging unit (camera) 54, a microphone 55, , An operation unit 56, a recording unit 57, a display unit (LCD monitor) 58, a speaker 59, and a remote control light emitting unit 60. The control unit 51 includes an encryption / decryption processing unit 51a. FIG. 4 is a functional block diagram showing a system configuration example of the television receiver 1 according to the present embodiment. As shown in FIG. 4, the television receiver 1 according to the present embodiment includes a control unit 71, a wireless communication unit 72 such as a LAN, a broadcast receiving unit 73, an imaging unit (camera) 74, a microphone 75, An operation unit 76, a recording unit 77, a display unit (LCD monitor) 78, a speaker 79, and a remote control light receiving unit 80 are provided. The control unit 71 has an encryption / decryption processing unit 71a. The television receiver 1 includes, for example, a device having a display device and a communication function, such as a personal computer with a TV tuner, in addition to a general television.

  FIG. 2 is a diagram illustrating an example of a method of using the communication system according to the present embodiment. As shown in FIG. 2, there is a room R1 and, for example, a room R2 that is adjacent in the left-right or up-down direction, and a television receiver 31 and a television receiver 45 are arranged in each of the rooms R1 and R2. Has been. The room R1 and the room R2 may assume different spaces in the same room. As shown in FIG. 2, when the user of the mobile videophone 35 selects the TV receiver 31 among the TV receivers 31 and 45, for example, a mobile phone mark 41 is displayed on the TV screen of the TV receiver 31. The mobile videophone 35 and the television receiver 31 notify that they are in a communicable state. At this time, the mark is not displayed on the television receiver 45 and the communication is not possible. The switching button 37 is used when switching between a video displayed on the mobile phone and a screen of the television receiver. In this way, by displaying on the TV screen whether or not the TV is communicable with the mobile videophone 35, the user can know that his / her selection has actually been performed.

  Hereinafter, two examples of the configuration for starting communication between the mobile videophone 35 and the television receiver 31 or 45 will be described. First, in the first method, a control signal (a so-called beacon signal or the like) is periodically transmitted from at least one of the television receiver 31 or 45 side, and the mobile videophone 35 receiving this beacon signal performs communication. This is a method for informing the television receiver 31 of the start. At this time, the user can select which television to start communication with. The advantage of this method is that a strong radio wave can be transmitted because a beacon signal is generally transmitted from the television side where power consumption related to communication is not dominant. The second method is a method in which the television receiver 31 or 45 notifies the mobile videophone 35 that communication is to be started. In this case, communication is performed on the display screen of the mobile videophone 35. The identification mark of the TV receiver that started is displayed. In this method, unlike the first method, the mobile videophone 35 does not need to periodically respond to the TV receiver 1, and the mobile videophone 35 only waits for the start of communication from the TV receiver 31. Since it is good, there is little power consumption in the mobile videophone 35 side, and it is not necessary to worry about battery consumption.

  Next, a communication procedure between the mobile videophone and the television receiver will be described. FIG. 5 is a diagram showing a procedure at the start of communication, and FIG. 6 is a diagram showing a procedure at the end of communication. Assume that the first method is followed. The description will be made with reference to FIGS. 1 to 4 as appropriate. As shown in FIG. 5, at the start of communication (at the time of connection), first, an entry request signal 101 for communication is transmitted from the television receiver 1 to the mobile videophone 3 by radio. Receiving this, the mobile videophone 3 transmits an entry response signal 103 to the television receiver 1 by radio. At this time, key information ID1 is sent together. In response to this, the television receiver 1 displays an icon on the TV screen, for example (103).

  Next, when the switching button 37 of the mobile videophone 3 is pressed (104), a connection request 105 (a signal having good straightness such as infrared rays is used for the television receiver 1 so that the device can be easily specified). Preferred). At this time, key information ID2 is sent together. Here, the key information ID1 and the key information ID2 are compared (key determination 106). If the two do not match (No), the subsequent processing is not performed, and the connection is not permitted. If the key information matches in the key determination 106 (YES), a connection permission signal 107 indicating that the connection is permitted wirelessly is transmitted from the television receiver 1 to the mobile videophone 3. Further, in the television receiver 1, a small screen display 108 is performed. The mobile videophone 3 that has received the connection permission signal 107 continues to transmit, for example, a video signal received by itself or previously to the TV receiver 1 by radio. When communication with the television receiver 1 is started by pressing the switching button 37, for example, the volume of the audio of the television receiver 1 may be decreased, so that a call by the mobile videophone 3 can be easily performed. You may make it send the user's image imaged with the imaging device 17 to the other party. Even in this case, it is possible to send the state of the self to the other party without changing the telephone call style.

  In addition, when the video signal is wirelessly transmitted from the portable videophone 3 to the television receiver 1, it is preferable to encrypt the video signal with the key information ID1. The encryption information ID 1 has already been sent to the television receiver 1, and the video information can be decrypted using this and displayed on the television screen 11 or the sub screen 15. By displaying on the sub-screen 15, it is possible to check the information (for example, the state of the other party) transmitted wirelessly and make a call while continuing to watch the TV program currently being viewed. . The television program may be displayed on the child screen on the other party's status on the entire screen, or switching for that may be performed.

The icon (mark) is displayed when a notification indicating that a beacon signal has been received from the mobile videophone 3 and when the call is in a call state or a call state, It is preferable that the information is displayed so as to be distinguishable from the display when the notification that the beacon signal is received from the telephone 3 is received and the telephone 3 is not in a call state or a call state. This is because in the former case, the conditions for making a call for the first time have been prepared.
One of the marks may be a complete display and the other may be a blinking display.

  As shown in FIG. 5, the video signal is transmitted from the mobile videophone 3 to the television receiver 1 only in one direction, so that a band can be secured and a clear video can be displayed. By encrypting the video information, it is possible to prevent an unauthorized person from viewing the video.

  Next, the operation at the end of connection will be described with reference mainly to FIG. First, when the switch button 37 of the mobile videophone 3 is pressed from the state in which the video signal 121 is transmitted wirelessly from the mobile videophone 3 to the television receiver 1, a request 123 for disconnecting is transmitted by infrared rays. Is done. At this time, key information 124 is also sent. The television receiver 1 performs the key information matching determination 125, and continues video display if they do not match. If the key information matches (YES), the display of the displayed child screen is stopped (126), and a disconnection permission signal 127 is transmitted to the mobile videophone 3 by radio. Thereby, the communication state between the mobile videophone 3 and the television receiver can be canceled. Even in the connection release operation, it is possible to prevent an unintended connection release operation from being performed due to irrelevant access by performing collation using key information.

  As described above, the communication state between the mobile videophone 3 and the television receiver 1 can be connected or disconnected by the procedure described with reference to FIGS. 5 and 6. In the above description, when the television receiver 1 is specified from the portable videophone 3, the case where a connection request or a disconnection request is made by infrared rays having strong linearity has been described. The request may be made by a signal. In addition, when specifying a device for displaying video, a television receiver that is frequently used on a daily basis can be easily accessed by registering the device in the mobile videophone from the beginning. It can also be configured.

  Next, a communication system according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a diagram showing a configuration example of a communication system according to the present embodiment, including a content distribution server. The communication system according to the present embodiment is characterized in that a content distribution server 51 that can be connected to the mobile phone 3 via a public network (network) 5 is provided. The content distribution server 51 is a server that distributes various contents such as moving images, music, and streaming data to the mobile videophone 3 via the network. When the user of the mobile videophone 3 acquires desired content from the content distribution server 51, it is not satisfactory if the video is displayed on the monitor screen 21 or music is played back by the speaker of the mobile videophone. There are many cases.

  In such a case, the mobile videophone 3 sends a content distribution request to the content distribution server 51 and connects to the desired television receiver 1 by the above-described procedure, thereby transmitting the content from the content distribution server 51. The received content is wirelessly transmitted to the television receiver 1 and displayed on the sub-screen 15 or the television screen 11. Thereby, it is possible to view high-quality video or audio. At this time, by using the key information acquired from the content distribution server 51 as the above-described key information, only those who have a legitimate right to view the content can view the content in a good quality state. In this case as well, higher quality video can be enjoyed on the television receiver by transmitting information such as video in only one direction via the wireless network 7.

  Next, a communication system according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a diagram illustrating a configuration example of a communication system according to the present embodiment. FIG. 9A is a diagram showing a simplified data configuration example of packet data including MPEG-4 used for transmission of a video signal between mobile phones. FIG. 9B is a table showing the relationship between operation buttons (numeric keys) of a mobile videophone, a television receiver (see FIG. 4) having a communication function and a display function in the communication system, and an identification ID thereof. It is. FIG. 10 is a diagram showing an exchange procedure between the mobile videophone and the television receiver. The description will be given with reference to FIGS. 3 and 4 as appropriate. Differences between the communication system according to the first and second embodiments and the communication system according to the present embodiment are as follows. That is, the former selects a television receiver for displaying an image from the other party by a direct signal excellent in straightness such as an infrared signal from a mobile video phone. On the other hand, in the latter, an identification ID for uniquely identifying the television receiver is assigned to each television receiver. For example, an operation button (numeric key) of a mobile videophone or the like is associated with an identification ID, and a television receiver that displays the other party's video without using a direct signal by pressing the numeric key is used as the identification ID. Identify based on. Hereinafter, the embodiment will be described more specifically.

  As shown in FIG. 8, for example, a television receiver X, a television receiver Y, and a television receiver Z are installed in a place where a videophone call can be made by a mobile videophone 3 in a viewable state. And 4 together with the remote control light receiving units 80a, 80b, 80c corresponding to the remote control light receiving unit 80 in the functional block of the television receiver shown in FIG. 4, the wireless communication units 72a, 72b corresponding to the wireless communication unit 72 in the television receivers X, Y, Z. , 72c are provided. For communication between the wireless communication unit 72 and the mobile videophone 3, a general high-frequency signal that does not have a straight traveling property is used. The user of the mobile videophone 3 determines which television receiver the other party's video is to be displayed by other means that identifies the television receiver, not a signal based on straightness. For example, as shown in FIG. 9B, any one of the numeric keys (channel buttons) 23 of the mobile videophone 3 and each of the television receivers are associated in advance. As shown in FIG. 9B, for example, the numeric key “1” of the mobile videophone 3 is associated with the television receiver X, and for example, X1 is assigned as an identification number (ID). A table including this identification number is stored in an ID storage area 57a, which is one area of the storage unit 57 of the mobile videophone 3 shown in FIG. 3, and a storage area 77a of the storage unit 77 of the television receiver shown in FIG. The number of the associated numeric key is stored. Thereby, the user can display the image of the other party in the portable videophone 3 on an arbitrary television receiver. It is also possible to display images from the same call partner on a plurality of television receivers, and when there is a call from another second call partner during a call with the first call partner. Can display the other party's video on different television receivers.

  Next, the call and display process flow will be described. With reference to FIG. 10, the exchange between the mobile videophone 3, the mobile videophone 200 of the other party, and the TV receiver X (Y, Z) will be described. As shown in FIG. 10, first, an identification ID is assigned to the television receiver X (or Y, Z) using the mobile videophone 3 (201). In this case, it may be specified using the remote control light emitting unit 60 (FIG. 3), or the device ID of the television receiver X may be specified via the wireless communication unit 72. With this processing, the identification ID (X1 in this case) is stored in the ID storage area 57a (FIG. 3) of the television receiver X (Y, Z).

  When the other party's mobile videophone 200 accesses the mobile videophone 3 (203) and receives an incoming call to his / her mobile videophone 3 (204), the user (self) wants to display the other party's video, for example, a television receiver X The numeric key “1” associated with is pressed (205). The identification ID (X1) is transmitted to the television receiver X (206). In the television receiver X, an identification ID determination process 207 is performed. This identification ID is compared with the identification ID stored in the ID storage area 77a of the television receiver X, and the process ends if they do not match. If they match, a connection permission signal is transmitted to the mobile videophone 3 (208), and in response, the video transmitted from the other party mobile videophone 200 is transferred to the TV receiver X (209). The video transmitted from the other party mobile videophone 200 is displayed on the television receiver X.

  By the above processing, the video from the other party videophone 200 can be displayed on an arbitrary television receiver in accordance with the designation from the mobile videophone 3 itself.

  In addition, although the example which displays the image | video from the other party on the television receiver designated by the user was shown, the MPEG-4 video data sent from the other party and the characteristics related to the display of the television receiver, such as the resolution and the display A television receiver that can automatically display appropriately may be selected based on the size or the like. In this case, for example, a television receiver suitable for characteristics such as the data capacity of the data part 183 described in the header part 181 of the MPEG-4 data structure shown in FIG. It is sufficient to display the video.

  As described above, according to the communication system according to the present embodiment, since an image from the other party can be displayed on an arbitrary television receiver, there is an advantage that the degree of freedom regarding display is increased. In particular, it can be displayed on a television receiver having a display portion suitable for display characteristics or position among television receivers having different display characteristics (resolution, number of inches of display screen, etc.) and installed positions. Is advantageous.

  As mentioned above, although embodiment of this invention was described, this invention is not interpreted limitedly by these description. For example, as information to be displayed on the television receiver, audio may be output instead of the video or together with the video. The television receiver may be a device in which a television tuner is attached to a PC or the like. In addition, although a mobile videophone has been described as an example of the terminal, it goes without saying that a general mobile phone is also included.

  According to the present invention, there is an advantage that it is possible to make a call by a mobile videophone without changing the telephone call style and to output higher quality information on the TV receiver.

  The present invention can also be applied when a general mobile phone or mobile terminal is used.

It is a figure which shows the structural example of the communication system by the 1st Embodiment of this invention. It is a figure which shows an example of the utilization method of the communication system by the 1st Embodiment of this invention. 1 is a functional block diagram showing a system configuration example of a mobile videophone according to a first embodiment of the present invention. It is a functional block diagram which shows the system configuration example of the television receiver by the 1st Embodiment of this invention. It is a figure explaining the procedure of the exchange by communication between a portable videophone and a television receiver, and is a figure which shows the procedure at the time of communication start. It is a figure explaining the procedure of the exchange by communication between a portable videophone and a television receiver, and is a figure which shows the procedure at the time of the end of communication. It is a communication system by the 2nd Embodiment of this invention, Comprising: It is a figure which shows the structural example of the communication system containing a content delivery server. It is a figure which shows the structural example of the communication system by the 3rd Embodiment of this invention. FIG. 9A is a diagram showing a simplified data configuration example of packet data including MPEG-4 used for transmission of a video signal between mobile phones. FIG. 9B is a table showing the relationship between operation buttons (numeric keys) of a mobile videophone, a television receiver having a communication function and a display function in the communication system, and identification IDs thereof. It is a figure which shows the procedure of the exchange between a mobile videophone and a television receiver. FIG. 11A is a diagram showing a general call style in a mobile videophone in which a mobile phone is looked into from the front. FIG. 11B is a diagram showing a general mobile phone call style in which a speaker is placed near the ear and a microphone is placed close to the mouth.

Explanation of symbols

A ... communication system, 1 ... TV receiver, 3 ... mobile videophone, 5 ... public network (network), 11 ... TV screen, 15 ... sub-screen, 17 ... imaging device, 21 ... monitor screen, 23 ... input unit, DESCRIPTION OF SYMBOLS 25 ... Imaging device 51 ... Control part 52 ... Wireless communication part 53 ... Cell-phone communication part 54 ... Imaging part (camera) 55 ... Microphone 56 ... Operation part 57 ... Recording part 57a ... ID storage area 58 ... Display unit (LCD monitor), 59 ... Speaker, 60 ... Remote control light emitting unit, 77 ... Storage unit, 77a ... ID storage area.

Claims (31)

A communication system comprising a mobile terminal having a first communication unit for a call, and a television receiver having a display unit and a tuner unit for receiving a broadcast,
The portable terminal has a second communication unit that wirelessly transmits information from the portable terminal to the television receiver,
The television receiver includes a third communication unit that wirelessly receives information transmitted from the second communication unit by wireless communication, and an output control unit that performs control to output the information. Communication system.   Entry that is a response indicating that the transmitting side, which is either the television receiver or the mobile terminal, transmits an entry request signal for a request to enter communication, and the receiving side that has received the entry request signal wants to start communication The communication system according to claim 1, wherein the mobile terminal and the television receiver are controlled to be in a connectable state by sending a response signal to the other party.   The portable terminal further includes a direct signal transmission unit that sends a direct signal that can directly identify a television receiver that actually wants to communicate in the connectable state, and the television receiver receives the direct signal. The communication system according to claim 1, further comprising a direct signal receiving unit. The television receiver
A connection request is sent based on the first key information sent from the second communication unit and received by the third communication unit, and the second key information sent accompanying the direct signal. 4. The communication system according to claim 1, further comprising: a key determination unit that identifies a portable terminal and determines whether or not to grant connection permission. 5.   The portable terminal and the television receiving device include an encryption / decryption unit that encrypts or decrypts the information with at least one of the first key information and the second key information. The communication system according to any one of claims 1 to 4.   6. The communication system according to claim 2, wherein, when the television receiver receives the entry response signal, an icon for notifying the fact is displayed on the display unit. 6. .   The television receiver performs display control for forming a sub-screen for displaying information transmitted from the portable terminal on the display unit when sending a connection permission signal in response to the direct signal. The communication system according to any one of claims 3 to 6.   When the portable terminal and the television receiver are communicating wirelessly, and receiving a signal indicating that the communication sent from the direct signal transmitting unit is to be terminated together with third key information, the third key information is 4. A determination unit that compares with at least one of the first and second key information and determines whether or not to actually permit cutting based on a result of the comparison. The communication system according to any one of claims 1 to 6.   9. The portable terminal has a videophone function including an imaging device, and a status of a call partner is displayed on the display unit or a sub-screen. Communication system.   The communication device according to claim 1, wherein the television receiver includes an imaging device.   The communication apparatus according to any one of claims 1 to 10, wherein the information is transmitted from the mobile terminal to the television receiver by one-way communication.   12. The communication system according to claim 1, further comprising a distribution server for the information that can be associated with the second communication unit in addition to the communication system according to claim 1.   The communication system according to claim 12, wherein the information is information received by the mobile terminal from the distribution server. A first communication unit for calling;
A second communication unit for wirelessly transmitting information to another device having a communication unit and a display unit;
A communication terminal, comprising: a communication control unit that controls the information received from the first communication unit to perform one-way communication with the other device. A television receiver having a display unit, a broadcast receiving tuner unit, a wireless communication unit, and a direct receiving unit,
When displaying the information received by the wireless communication unit on the display unit, the first key information received in association with the wireless entry response from the connection candidate terminal and the direct receiving unit received from the actual connection terminal. A television receiver comprising: a determination unit configured to collate with second key information attached to the connection request and determine whether to permit transmission of actual information by wireless communication based on the collation result .   Furthermore, when receiving the wireless participation response from the said connection candidate terminal, it has a display control part which performs control which displays the mark which identifies the terminal which received the said wireless participation response on the said display part. Item 16. The television receiver according to Item 15.   17. The television receiver according to claim 16, wherein when the mark is displayed, a display mode is changed according to received radio wave intensity.   The display control unit generates a sub-screen on the display unit for displaying wireless information from a terminal that has permitted connection when the connection request is accepted for the connection request received by the direct receiving unit from an actual connection terminal. The television receiver according to any one of claims 15 to 17, wherein control is performed.   Furthermore, when the determination unit receives a disconnection request from a connected terminal, the determination unit collates the third key information received accompanying the disconnection request with the first or second key information. The television receiver according to any one of claims 15 to 18, wherein the television receiver determines whether to cut off transmission of actual information by wireless communication based on a collation result. In a communication system including a mobile terminal and an information display device,
The portable terminal includes communication means for transmitting video and / or audio to the information display device;
Storage means for storing key information for identifying the portable terminal;
Transmission means for transmitting the key information,
The information display device includes a receiving unit that receives the video and / or audio;
Receiving means for receiving the key information;
And a determination unit that determines whether to receive the video and audio based on the key information. In a system consisting of a mobile videophone and a TV receiver,
The mobile videophone includes communication means for transmitting video and / or audio to a television receiver;
Storage means for storing key information for identifying the mobile videophone;
Transmission means for transmitting the key information,
The television receiver includes a receiving means for receiving the video and / or audio;
Receiving means for receiving the key information;
And a determination unit that determines whether to receive the video and audio based on the key information. Television receiver having portable terminal having first communication unit for call and second communication unit for wireless communication, display unit, tuner for receiving broadcast, and third communication unit for wireless communication A communication method using a communication system comprising:
A first step of making a request and response regarding entry between the mobile terminal and the television receiver;
A second step of directly making a connection request from the portable terminal to the specific television receiver;
A third step of issuing a connection permission wirelessly from the specific television receiver to the mobile terminal;
And a fourth step of wirelessly unidirectionally communicating information received by the portable terminal from the portable terminal to the television receiver. In the first step and the second step, the accompanying first and second key information is sent,
23. The communication method according to claim 22, further comprising a step of collating the first and second key information as a premise for executing the third step.   24. A program for causing a computer to execute the method according to claim 22 or 23. A communication system comprising a mobile terminal having a first communication unit for a call, and one or more television receivers having a display unit and a tuner for receiving a broadcast, wherein the mobile terminal A second communication unit configured to wirelessly transmit information from the portable terminal to the television receiver; and the television receiver wirelessly transmits information transmitted from the second communication unit via wireless communication. A communication system comprising: a third communication unit for receiving; and an output control unit for performing control to output the information,
The portable terminal specifies which of the display units of the television receiving device displays the information from the second communication unit based on an identification ID for identifying the television receiving device. A communication system. The mobile terminal has a storage unit that stores a table that associates the operation key of the mobile terminal and the identification ID,
26. The communication system according to claim 25, wherein a signal capable of specifying a television receiver that displays the information is transmitted based on an operation of the operation key.   The said portable terminal specifies the television receiver which displays the said information based on the attribute regarding the display contained in the video information from the other party using the said 1st communication part, It is characterized by the above-mentioned. The communication system described. 1 or 2 having a portable terminal having a first communication unit for calling and a second communication unit for wireless communication, a display unit, a tuner unit for receiving broadcasts, and a third communication unit for wireless communication A communication method using a communication system comprising the above television receiver,
A first step of associating an operation key of the portable terminal with an identification ID of the television device;
A second step of receiving an incoming call from the first communication unit in the portable terminal and accessing the television receiver having the identification ID by a key operation using the operation key associated with the identification ID;
It is determined whether or not the identification ID and the device ID of the television receiving device match, and if the identification ID and the device ID match as a result of the determination, the matching television receiver to the portable terminal A third step of permitting connection to
And a fourth step of wirelessly unidirectionally communicating information received by the portable terminal from the portable terminal to the television receiver. 1 or 2 having a portable terminal having a first communication unit for calling and a second communication unit for wireless communication, a display unit, a tuner unit for receiving broadcasts, and a third communication unit for wireless communication A communication method using a communication system comprising the above television receiver,
A first step of associating an operation key of the portable terminal with an identification ID of the television device;
A second step of accessing, with the identification ID, a television receiver selected based on display characteristics of information received by the first communication unit in the portable terminal;
It is determined whether or not the identification ID and the device ID of the television receiving device match, and if the identification ID and the device ID match as a result of the determination, the matching television receiver to the portable terminal A third step of permitting connection to
And a fourth step of wirelessly unidirectionally communicating information received by the portable terminal from the portable terminal to the television receiver.   A program for causing a computer to execute the steps according to claim 28 or 29. A communication system comprising a mobile terminal having a first communication unit for calling and a display device having a display unit,
The mobile terminal has a second communication unit that wirelessly transmits information from the mobile terminal toward the display device,
The display device includes a third communication unit that wirelessly receives information transmitted from the second communication unit by wireless communication, and an output control unit that performs control to output the information. Communications system.

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