JP4850121B2 - Content display system and content display method - Google Patents

Description

  The present invention relates to a content display system and a content display method.

  An example of a remote control system using a network is disclosed in Patent Document 1. In this system, when sharing a web page or the like with the other party on the phone, such content is displayed on a display device in the vicinity of the telephone device. At this time, display device content that can perform communication using a near field communication means such as infrared communication or RF-ID is displayed on the telephone device.

  Further, for example, Patent Document 2 discloses that the user can perform the selection. In this system, a user selects a display destination from a list of display devices.

In the system disclosed in Patent Document 3, a list of linkage operations by a plurality of devices is displayed, and the user selects a desired linkage operation from the list.
Japanese Patent No. 3870882 Japanese Patent No. 3389200 JP 2005-332070 A

  In the system disclosed in Patent Document 1, a user brings a desired display device close to a telephone device, but the display device may not have a display capability according to content. For example, just because there is a television receiver near the telephone device, there is content that cannot be displayed on the television receiver. Such content is, for example, a web page shared with a telephone partner, and even if there is a display device that can display the content, the user cannot be notified of it and the display device cannot be used.

  In this regard, as in the system disclosed in Patent Document 2, the user can be notified by displaying a list of display devices and a list of linked operations. However, since the display device in the list cannot know which display device is in front of the user, the user needs to store the corresponding relationship.

  Further, even with the system disclosed in Patent Document 3, it is impossible to provide the user with the correspondence between the linked operation in the list and the actual device.

  In addition, since the list display destination is a telephone device, for example, a mobile phone or a cordless phone is used by touching it to the ear, so the list displayed on the display unit may not be visible. Is often inconvenient.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to intuitively know on which display device the content can be displayed, and to display the content by natural operation. It is an object of the present invention to provide a content display system that can be used.

In order to solve the above problem, the content display system according to claim 1 is a content display system in which a communication device and a plurality of display devices are connected, and the communication device includes a voice call unit that realizes a voice call; Display device information storage unit for storing display device information including display capability of each display device, and display device information transmitted from each display device are stored in the display device information storage unit, and the voice call unit is in operation If it is necessary to display the content, the display device information including the display capability necessary for the display is retrieved from the display device information storage unit, and the content is limited to the display device corresponding to the retrieved display device information. sends a display request, has received the display operation information indicating that there is an operation for displaying the content from the display device, the display device which has transmitted the display operation information Wherein a display apparatus management unit for displaying the content, the display device, if receiving a display unit, the content display request from the display apparatus management unit, the display operation request for requesting an operation for displaying the content An operation request image display control unit for displaying an image on the display unit, and display capability information indicating the display capability of the display device are transmitted to the display device management unit. And a communication unit that transmits display operation information indicating that to the display device management unit.

According to the first aspect of the present invention, when the display device management unit needs to display content during the operation of the voice call unit, the display device information including the display capability necessary for the display is displayed. Search from the storage unit and transmit a content display request only to the display device corresponding to the searched display device information, and the operation request image display control unit of each display device receives the content display request from the display device management unit Then, since the display operation request image for requesting the operation for displaying the content is displayed, the user can intuitively know on which display device the content can be displayed. Additionally, if the communication unit of the display device, if there is the operation, and transmits the display operation information indicating that there is an operation on the display apparatus management unit, a display apparatus management unit receiving the display operation information, Since the content is displayed on the display device that has transmitted the display operation information, the content can be displayed by a natural operation. Further, since a communication device is not used for selecting a display device, the selection can be performed even during a call.

The content display system according to claim 2, wherein a communication device and a relay device are connected, and the relay device is connected to a plurality of display devices. The relay device is transmitted from each display device, a voice call relay unit that realizes relay of the voice call, a display device information storage unit that stores display device information including display capability of each display device, and Display device information is stored in the display device information storage unit, and if display of content becomes necessary during operation of the voice call relay unit, display device information including display capability necessary for the display is displayed. searches the information storage unit, it sends the content display request only display device corresponding to the retrieved display equipment information, operation of displaying the content from those the display device Upon receiving the display operation information indicating that Tsu, a display apparatus management unit for displaying the content on a display device that has transmitted the display operation information, the display device includes a display unit, the content display request Is received from the display device management unit , an operation request image display control unit for displaying a display operation request image for requesting an operation for displaying content on the display unit, and display capability information indicating the display capability of the display device And a communication unit that transmits display operation information indicating that the operation is performed to the display device management unit when the operation is performed.

According to the second aspect of the present invention, if the display device management unit needs to display content during the operation of the voice call relay unit, the display device management unit displays the display device information including the display capability necessary for the display. A search is performed from the information storage unit, and a content display request is transmitted only to the display device corresponding to the searched display device information. The operation request image display control unit of each display device receives the content display request from the display device management unit. If received, a display operation request image for requesting an operation for displaying the content is displayed, so that the user can intuitively know on which display device the content can be displayed. Additionally, if the communication unit of the display device, if there is the operation, and transmits the display operation information indicating that there is an operation on the display apparatus management unit, a display apparatus management unit receiving the display operation information, Since the content is displayed on the display device that has transmitted the display operation information, the content can be displayed by a natural operation. Further, since a communication device is not used for selecting a display device, the selection can be performed even during a call.

The content display system according to claim 3 is the content display system according to claim 1 or 2, wherein when the display device management unit receives the display operation information, the display device management unit displays the display on a display device that does not transmit display operation information. The operation request image is erased.

According to the third aspect of the present invention, when the display device management unit receives the display operation information , the display device requesting image is deleted by the display device that does not transmit the display operation information, so that the operation is no longer necessary. Can be notified to the user.

A content display system according to a fourth aspect of the present invention is the content display system according to any one of the first to third aspects, wherein when the operation request image display control unit receives the content display request, the content is displayed. An image requesting an operation for rejecting the operation is displayed on the display unit, and when the operation is performed, the communication unit transmits display rejection operation information indicating that the operation has been performed to the display device management unit. When the display device management unit receives the display refusal operation information, the display device management unit stops displaying the content.

According to the present invention described in claim 4, the operation requested image display control unit has received the content display request to display an image requesting the refuse manipulate the content is displayed on the display unit, a communication If there is an operation, the unit transmits display refusal operation information indicating that there is an operation to the display device management unit, and the display device management unit displays the content when receiving the display refusal operation information. Since the content is canceled, the content can be prevented from being displayed.

6. The content display method according to claim 5, wherein the communication device is a content display system in a content display system in which a communication device and a plurality of display devices are connected. The communication device includes a voice call unit for realizing a voice call, and a display of each display device. A display device information storage unit that stores display device information including the capability, each display device includes a display unit, and the content display method includes the operation of the voice call unit by the display device management unit of the communication device. The display device information storage unit including the display device information including the display capability necessary for content display is searched from the display device information storage unit, and the display device management unit is limited to the display device corresponding to the searched display device information. sending a content display request Te, operation request image display control unit of the display device the content display request is received from the display apparatus management unit A step of displaying a display operation request image for requesting an operation for displaying content on the display unit, and the communication unit of the display device displaying the display operation information indicating that the operation has been performed if the operation has been performed. The step of transmitting to a device management unit, and the step of causing the display device management unit to display the content on the display device.

According to the fifth aspect of the present invention, in the content display method, the display device management unit of the communication device displays the display device information including the display capability necessary for displaying the content during the operation of the voice call unit. The step of searching from the storage unit, the step of the display device management unit transmitting the content display request only to the display device corresponding to the searched display device information, and the content display request received from the display device management unit The operation request image display control unit of the display device includes a step of causing the display unit to display a display operation request image for requesting an operation for displaying the content, so that the user can intuitively determine on which display device the content can be displayed. I can know. Further, if the communication unit of the display device is operated, a step of transmitting display operation information indicating that the operation has been performed to the display device management unit, and a step of causing the display device management unit to display content on the display device Therefore, the content can be displayed by a natural operation. Further, since a communication device is not used for selecting a display device, the selection can be performed even during a call.

7. The content display method according to claim 6, wherein a communication device and a relay device are connected, and the content display method in a content display system in which the relay device and a plurality of display devices are connected, the communication device realizes a voice call. And the relay device includes a voice call relay unit that realizes relay of the voice call, and a display device information storage unit that stores display device information including display capability of each display device, The display device includes a display unit, and in the content display method, the display device management unit of the relay device displays the display device information including display capability necessary for displaying the content during the operation of the voice call relay unit. The step of searching from the display device information storage unit, and the display device management unit transmits a content display request only to the display device corresponding to the searched display device information That step a, the operation requested image display control unit of the display device the content display request is received from the display apparatus management unit, displays the display operation requested image that requests an operation for displaying the content on the display unit of the display device And, if the communication unit of the display device performs the operation, the step of transmitting display operation information indicating that the operation has been performed to the display device management unit, and the display device management unit And displaying the content on a display device.

According to the sixth aspect of the present invention, in the content display method, the display device management unit of the communication device displays the display device information including the display capability necessary for displaying the content during the operation of the voice call relay unit. A step of searching from the information storage unit, a step of the display device management unit transmitting a content display request only to a display device corresponding to the searched display device information, and a content display request received from the display device management unit The operation request image display control unit of the displayed device includes a step of causing the display unit to display a display operation request image for requesting an operation for displaying the content, so that the user can intuitively determine on which display device the content can be displayed. Can know. Further, if the communication unit of the display device is operated, a step of transmitting display operation information indicating that the operation has been performed to the display device management unit, and a step of causing the display device management unit to display content on the display device Therefore, the content can be displayed by a natural operation. Further, since a communication device is not used for selecting a display device, the selection can be performed even during a call.

The content display method according to claim 7 is the content display method according to claim 5 or 6, wherein when the display device management unit receives the display operation information, the display operation is performed on a display device that does not transmit the display operation information. And a step of erasing the requested image .

According to the seventh aspect of the present invention, the display device management unit includes a step of causing the display device that does not transmit the display operation information to delete the display operation request image when the display operation information is transmitted. The user can be informed that it is not necessary .

The content display method according to claim 8 is the content display method according to any one of claims 5 to 7 , wherein the content is displayed when the operation request image display control unit receives the content display request. Displaying an image requesting an operation for rejecting the display on the display unit, and, if the operation is performed, the communication unit transmits display refusal operation information indicating the operation to the display device management unit. a step of the display apparatus management unit, has received the display refusal operation information, characterized by comprising the steps you cease to display the content.

According to the eighth aspect of the present invention, when the operation request image display control unit receives the content display request , the operation request image display control unit causes the display unit to display an image requesting an operation for refusing to display the content, and the communication unit If there is an operation, display refusal operation information indicating that the operation has been performed is sent to the display device management unit, and if the display device management unit receives the display refusal operation information, the display device management unit stops displaying the content. Therefore, the content can be prevented from being displayed .

  According to the present invention, when the display device management unit needs to display content during the operation of the voice call unit or the voice call relay unit, the display device information is displayed on the display device information including the display capability necessary for the display. A search is performed from the storage unit, and a content display request is transmitted only to the display device corresponding to the searched display device information, and the operation request image display control unit of each display device displays the content if the content display request is transmitted. Since a display operation request image for requesting an operation for displaying is displayed, the user can intuitively know which display device can display the content. Furthermore, if there is an operation, the communication unit of the display device transmits display operation information indicating that the operation has been performed to the display device management unit, and if the display device management unit transmits the display operation information, Since the content is displayed on the display device that has transmitted the display operation information, the content can be displayed by a natural operation. Further, since a communication device is not used for selecting a display device, the selection can be performed even during a call.

  Further, by using a relay device, the communication device can be an analog telephone device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a block diagram of a content display system according to the first embodiment of the present invention. In this system, a telephone device 1 which is a communication device for a telephone call and a plurality of display devices 2 in the vicinity of the telephone device 1 are connected. Although only two display devices are illustrated here, the number may be three or more.

  The telephone device 1 includes a telephone unit 11, an operation detection unit 12, a display device information storage unit 13, and a display device management unit 14. The telephone device 1 is, for example, an analog telephone device.

  The telephone unit 11 uses a voice call unit 111 for realizing a voice call, and displayable content and audio content (referred to as “speech information” to distinguish it from the former, and simply referred to as “content” for the former). A material sharing unit 112 for sharing with the telephone device 100 is provided. The telephone unit 11 has, for example, a modem function for terminating the IP network, thereby eliminating the need for a relay device specialized for the modem function.

  The operation detecting unit 12 detects an operation performed by the user of the telephone device 1 and transmits a control command corresponding to the operation to the telephone unit 11. The operation detection unit 12 also has a function of notifying the user of call information transmitted from the telephone unit 11.

  The display device information storage unit 13 stores display device information for each display device 2. The display device information includes the display capability of the corresponding display device, and further includes, for example, an IP address and a port number.

  The display device management unit 14 manages the display device information storage unit 13 and transmits a control command to the display device 2.

  The display device 2 includes a communication unit 21, a user interface unit 22, and a display unit 23. The display unit 23 is composed of, for example, a liquid crystal display device. The display device 2 includes an input device (not shown). An input device when the display device 2 is a personal computer is a mouse or a keyboard.

  The communication unit 21 performs communication with the telephone device 1.

  The user interface unit 22 includes an operation request image display control unit 221 and a content display control unit 222.

  The operation request image display control unit 221 displays a display operation request image 221A for requesting an operation for displaying content on the display unit 23, and also has a function of detecting the operation.

  Note that the user interface unit 22 may include a user interface of the display device 2 itself.

(Operation of the first embodiment)
Next, the operation of the system according to the first embodiment will be described.

  FIG. 2 is a sequence diagram showing the operation.

  The communication unit 21 of each display device 2 transmits display device information including the display capability of the display device 2 to the display device management unit 14 when the display device 2 and the telephone device 1 become communicable or periodically. (S1). The display device information corresponding to the display capability is, for example, information indicating the resolution of displayable content, the type of displayable content, the name and version of a codec provided for use in decoding the content, and the like. The display device information further includes, for example, an IP address and a port number for transmitting and receiving content.

  The display device management unit 14 of the telephone device 1 waits for display device information to be transmitted, receives the transmitted display device information, and stores it in the display device information storage unit 13. At this time, by associating the display device information with the information indicating the transmission source, the display device 2 that has transmitted the display device information can be known later.

  When an operation for inputting a telephone number or the like is performed, the operation detection unit 12 of the telephone device 1 transmits a control command including the telephone number to the telephone unit 11. A voice call is started with the device 100 (S3). When starting a voice call, the telephone device 1 transmits and receives call information to and from the telephone device 100. Call information includes voice information and content type used together with the voice call, information indicating the name and version of the codec to be used for decoding the voice information and content, an IP address for transmitting and receiving the voice information and content, The port number is included. Based on the call information, the type of audio information and content and the transmission / reception method thereof are determined. Call information is notified to the user via the operation detection unit 12.

  In addition, when call information is transmitted / received during a voice call, the type of voice information or content and the transmission / reception method thereof may be changed based on the call information. The call information transmission / reception function is a function provided in, for example, the most common SIP (Session Initiation Protocol) as a call control protocol for IP telephones.

  During a call, document information may be transmitted and received between the telephone device 1 and the telephone device 100 (S5). The material information includes a so-called content entity such as a moving image, a still image, character information, and a web page, and information (URL: Uniform Resource Locator) indicating the location of the content.

  The display device management unit 14 of the telephone device 1 waits for call information or material information to be transmitted from the telephone unit 11, and the transmitted call information includes content-related information or document information. Is determined (S7). That is, it is determined whether or not content display is necessary.

  If it is determined in step S7 that the content needs to be displayed, the display device management unit 14 searches the display device information storage unit 13 for display device information including display capability information indicating the display capability necessary for the display (S9). ).

  Subsequently, the display device management unit 14 transmits a content display request only to the display device 2 corresponding to the searched display device information (S11). Here, the display device management unit 14 determines to which display device 2 the content display request should be transmitted, based on information indicating a transmission source associated in advance.

  In FIG. 2, the content display request is transmitted to both of the two display devices 2 shown in the figure, but when only one display device information is searched, the content display request is transmitted only to the display device 2. .

  The operation request image display control unit 221 of each display device 2 displays the display operation request image 221A on the display unit 23 when the content display request is transmitted (S13).

  FIG. 3 is a display example of the display operation request image 221A. This example assumes that the display device 2 is a personal computer.

  The operation requested by the display operation request image 221A (for example, an operation of operating the mouse to move the cursor to the position of the display operation request image 221A and pressing the mouse button) is performed (S15). Is detected by the operation request image display control unit 221.

  Note that the display operation request image 221A when the display device 2 is a television receiver may be an image for informing a button to be operated on the remote controller of the television receiver, for example. That is, as in the case illustrated in FIG. 3, the display operation request image 221 </ b> A is preferably an image that indicates the operation to be performed.

  If there is an operation, the operation request image display control unit 221 of the display device 2 transmits display operation information indicating that the operation has been performed to the communication unit 21, and the communication unit 21 displays the display operation information. It transmits to the apparatus management part 14 (S17).

  When the display operation information is transmitted, the display device management unit 14 transmits a content display command to the display device 2 (S19). At this time, the display device management unit 14 transmits the call information or material information received from the telephone unit 11 to the display device 2. The call information or the document information may be transmitted in step S11.

  Further, the display device management unit 14 notifies the display device 2 that does not transmit display operation information of cancellation of the content display request (S21).

  The communication unit 21 of the display device 2 to which the content display command or the like has been transmitted, if the transmitted material information is the substance of the content and is transmitted unilaterally like a videophone video, the content The content display control unit 222 receives the content using the reception port, and displays it on the display unit 23 (S23).

  On the other hand, if the transmitted material information is information indicating the location of the content, the communication unit 21 acquires the content from the location indicated by the information, and causes the content display control unit 222 to display the content (S23).

  The operation request image display control unit 221 of the display device 2 notified of the cancellation of the content display request deletes the display operation request image 221A that has been displayed so far (S25). At this time, the operation request image display control unit 221 may display that another display device 2 has been selected.

  By the way, there is a case where it is not desired to display the content on any display device 2. For that time, for example, when a content display request is transmitted, the operation request image display control unit 221 requests an image requesting an operation to refuse to display the content (“content to any display device 2”). For example, an image including a sentence “Please click here if you do not want to display” is displayed on the display unit 23 together with the display operation request image 221A, and the communication unit 21 performs the operation if the operation is performed. Display refusal operation information indicating that it has occurred may be transmitted to the display device management unit 14, and the display device management unit 14 may stop displaying the content when the display refusal operation information is transmitted. . At that time, the display device management unit 14 may notify all display devices 2 of cancellation of the content display request.

[Second Embodiment]
FIG. 4 is a block diagram of a content display system according to the second embodiment of the present invention. This system includes a display device as in the content display system according to the first embodiment, which is denoted by reference numeral 2 and redundant description is omitted.

  In this system, the telephone device 1A and the relay device 1B are connected, and a plurality of display devices 2 and the relay device B in the vicinity of the telephone device 1 are connected. Although only two display devices are illustrated here, the number may be three or more.

  The telephone device 1A and the relay device 1B each include a part of the components of the telephone device 1 of the first embodiment. The components are denoted by the same reference numerals, and redundant description is omitted.

  The telephone device 1A includes a telephone unit 11A and an operation detection unit 12. The telephone unit 11A is obtained by removing the material sharing unit 112 from the telephone unit 11.

  The relay device 1B includes a telephone relay unit 11B, a display device information storage unit 13, and a display device management unit 14. The relay device 1B corresponds to, for example, a home gateway (broadband router, ADSL modem, VoIP router, etc.) having a function of relaying a voice call.

  The telephone relay unit 11 </ b> B includes a voice call relay unit 111 </ b> A and a material sharing unit 112 that realize a relay of a voice call between the telephone device 1 </ b> A and the partner telephone device 100.

  The telephone relay unit 11B has, for example, a modem function that terminates the IP network, and the relay apparatus 1B is required separately from the telephone apparatus 1A that does not have the function.

(Operation of Second Embodiment)
Next, the operation of the system according to the second embodiment will be described.

  FIG. 5 is a sequence diagram showing the operation.

  The communication unit 21 of each display device 2 transmits display device information including the display capability of the display device 2 to the display device management unit 14 when the display device 2 and the relay apparatus 1B can communicate with each other or periodically. (T1). The display device information corresponding to the display capability is, for example, information indicating the resolution of displayable content, the type of displayable content, the name and version of a codec provided for use in decoding the content, and the like. The display device information further includes, for example, an IP address and a port number for transmitting and receiving content.

  The display device management unit 14 of the relay apparatus 1B waits for display device information to be transmitted, receives the transmitted display device information, and stores it in the display device information storage unit 13. At this time, by associating the display device information with the information indicating the transmission source, the display device 2 that has transmitted the display device information can be known later.

  When an operation for inputting a telephone number is performed, the operation detection unit 12 of the telephone device 1A transmits a control command including the telephone number to the telephone unit 11, whereby the telephone device 1A causes the relay device 1B to Then, a voice call is started with the other party's telephone device 100 (T3). When starting a voice call, the telephone device 1A transmits and receives call information to and from the telephone device 100 via the relay device 1B. Call information includes voice information and content type used together with the voice call, information indicating the name and version of the codec to be used for decoding the voice information and content, an IP address for transmitting and receiving the voice information and content, The port number is included. Based on the call information, the type of audio information and content and the transmission / reception method thereof are determined. Call information is notified to the user via the operation detection unit 12.

  In addition, when call information is transmitted / received during a voice call, the type of voice information or content and the transmission / reception method thereof may be changed based on the call information. The call information transmission / reception function is a function provided in, for example, the most common SIP (Session Initiation Protocol) as a call control protocol for IP telephones. The relay device 1B operates as a B2BUA in SIP and relays not only call information but also voice data used for the call.

  During a call, document information may be transmitted and received between the relay device 1B and the telephone device 100 (T5). The material information includes a so-called content entity such as a moving image, a still image, character information, and a web page, and information (URL: Uniform Resource Locator) indicating the location of the content.

  The display device management unit 14 of the relay device 1B waits for the call information or material information to be transmitted from the telephone unit 11, and the transmitted call information includes information about the content or the material information. It is determined whether or not is transmitted (T7). That is, it is determined whether or not content display is necessary.

  When it is determined in step S7 that content display is necessary, the display device management unit 14 searches the display device information storage unit 13 for display device information including display capability information indicating the display capability necessary for the display (T9). ).

  Subsequently, the display device management unit 14 transmits a content display request only to the display device 2 corresponding to the retrieved display device information (T11). Here, the display device management unit 14 determines to which display device 2 the content display request should be transmitted, based on information indicating a transmission source associated in advance.

  In FIG. 5, the content display request is transmitted to both of the two display devices 2 shown in the figure, but when only one display device information is searched, the content display request is transmitted only to the display device 2. .

  When a content display request is transmitted, the operation request image display control unit 221 of each display device 2 displays the display operation request image 221A as illustrated in FIG. 3 on the display unit 23 (T13). The display operation request image 221 </ b> A is preferably an image that indicates the operation to be performed.

  When the operation requested by the display operation request image 221A is performed (T15), the operation request image display control unit 221 detects this operation.

  If there is an operation, the operation request image display control unit 221 of the display device 2 transmits display operation information indicating that the operation has been performed to the communication unit 21, and the communication unit 21 displays the display operation information. It transmits to the apparatus management part 14 (T17).

  When the display operation information is transmitted, the display device management unit 14 transmits a content display command to the display device 2 (T19). At this time, the display device management unit 14 transmits the call information or material information received from the telephone unit 11 to the display device 2. The call information or the document information may be transmitted in step S11.

  Further, the display device management unit 14 notifies the display device 2 that does not transmit display operation information of cancellation of the content display request (T21).

  The communication unit 21 of the display device 2 to which the content display command or the like has been transmitted, if the transmitted material information is the substance of the content and is transmitted unilaterally like a videophone video, the content The content display control unit 222 receives the content using the reception port, and displays it on the display unit 23 (T23).

  On the other hand, if the transmitted material information is information indicating the location of the content, the communication unit 21 acquires the content from the location indicated by the information, and causes the content display control unit 222 to display the content (T23).

  The operation request image display control unit 221 of the display device 2 notified of the cancellation of the content display request deletes the display operation request image 221A that has been displayed so far (T25). At this time, the operation request image display control unit 221 may display that another display device 2 has been selected.

  Further, when it is not desired to display the content on any display device 2, as in the first embodiment, when a content display request is transmitted, the operation request image display control unit 221 displays the content. For example, the display unit 23 displays an image requesting an operation for rejecting the display on the display unit 23 together with the display operation request image 221A, and if there is an operation, the communication unit 21 transmits display rejection operation information to the display device management unit 14. If the display rejection operation information is transmitted, the display device management unit 14 may stop displaying the content. At that time, the display device management unit 14 may notify all display devices 2 of cancellation of the content display request.

  As described above, according to the content display systems according to the first and second embodiments, the display device management unit 14 needs to display content during the operation of the voice call unit 111 and the voice call relay unit 111A. Then, the display device information including the display capability necessary for the display is searched from the display device information storage unit 13, and the content display request is transmitted only to the display device 2 corresponding to the searched display device information. When the content display request is transmitted, the operation request image display control unit 221 of each display device 2 displays the display operation request image 221A for requesting an operation for displaying the content, so that the user can display the content on which display device 2. Intuitively know whether it can be displayed. Further, if there is an operation, the communication unit 21 of the display device 2 transmits display operation information indicating that the operation has been performed to the display device management unit 14, and the display device management unit 14 transmits the display operation information. Then, the content is displayed on the display device 2 that has transmitted the display operation information, so that the content can be displayed by a natural operation. Further, since no telephone device is used for selecting the display device 2, the selection can be made even during a call.

  Further, the analog telephone device 1A can be used by using the relay device 1B as in the second embodiment.

  Further, the communication unit 21 of each display device 2 transmits display device information including the display capability of the display device 2 to the display device management unit 14, and the display device management unit 14 displays the display device information in the display device information storage unit 13. The display device management unit 14 can search the display device information from the display device information storage unit 13.

  Further, when the display operation information is transmitted, the display device management unit 14 causes the display device that does not transmit the display operation information to delete the display operation request image 221A, so that the user can be notified that the operation is no longer necessary. .

  Further, when the content display request is transmitted, the operation request image display control unit 221 displays an image requesting an operation for refusing to display the content on the display unit, and the communication unit 21 performs the operation. Then, the display refusal operation information indicating that the operation has been performed is transmitted to the display device management unit 14, and the display device management unit 14 stops displaying the content when the display refusal operation information is transmitted. Content can be prevented from being displayed.

  A computer program that causes a system or apparatus to execute a content display method performed by the content display system according to the first or second embodiment or a method performed by a telephone device, a relay device, or a display device includes a semiconductor memory, a magnetic disk, The program may be stored in a computer-readable recording medium such as an optical disc, a magneto-optical disc, or a magnetic tape, and distributed through display or the like, or the computer program may be transmitted via a communication network such as the Internet.

1 is a block diagram of a content display system according to a first embodiment of the present invention. It is a sequence diagram which shows operation | movement of the system of FIG. It is an example of a display of the display operation request image 221A. It is a block diagram of the content display system which concerns on the 2nd Embodiment of this invention. It is a sequence diagram which shows operation | movement of the system of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A, 100 ... Telephone apparatus 1B ... Relay apparatus 2 ... Display apparatus 11, 11A ... Telephone part 11B ... Telephone relay part 12 ... Operation detection part 13 ... Display apparatus information storage part 14 ... Display apparatus management part 21 ... Communication part 22 ... User interface unit 23 ... Display unit 111 ... Voice call unit 111A ... Voice call relay unit 112 ... Document sharing unit 221 ... Operation request image display control unit 221A ... Display operation request image 222 ... Content display control unit

Claims (8)

In a content display system that connects communication devices and multiple display devices,
The communication device is:
A voice call unit that implements voice calls;
A display device information storage unit for storing display device information including the display capability of each display device;
Display device information transmitted from each display device is stored in the display device information storage unit, and if display of content becomes necessary during the operation of the voice call unit, a display device including display capability necessary for the display A display indicating that there has been an operation for searching for information from the display device information storage unit, transmitting a content display request only to the display device corresponding to the searched display device information, and displaying the content from the display device A display device management unit that displays the content on the display device that has transmitted the display operation information when the operation information is received ;
Each display device
A display unit;
If the content display request is received from the display device management unit , an operation request image display control unit that causes the display unit to display a display operation request image that requests an operation to display the content;
A communication unit that transmits display capability information indicating the display capability of the display device to the display device management unit, and if there is the operation, transmits display operation information indicating the operation to the display device management unit A content display system comprising: In a content display system in which a communication device and a relay device are connected, and the relay device and a plurality of display devices are connected,
The communication device is:
It has a voice call unit that realizes voice calls.
The relay device is
A voice call relay unit for relaying the voice call;
A display device information storage unit for storing display device information including the display capability of each display device;
Display device information transmitted from each display device is stored in the display device information storage unit, and if it is necessary to display content during the operation of the voice call relay unit, a display including display capability necessary for the display the device information retrieved from the display device information storage unit, that the only retrieved display device corresponding to the display device information to transmit the content display request, been operated to display the content from those the display device A display device management unit that displays the content on the display device that has transmitted the display operation information when the display operation information is received ,
Each display device
A display unit;
If the content display request is received from the display device management unit , an operation request image display control unit that causes the display unit to display a display operation request image that requests an operation to display the content;
A communication unit that transmits display capability information indicating the display capability of the display device to the display device management unit, and if there is the operation, transmits display operation information indicating the operation to the display device management unit A content display system comprising: The display device management unit
3. The content display system according to claim 1, wherein when the display operation information is received, a display device that does not transmit the display operation information is caused to delete the display operation request image. 4. The operation request image display control unit
If the content display request is received, an image requesting an operation for refusing to display the content is displayed on the display unit,
If there is the operation, the communication unit transmits display refusal operation information indicating that the operation has been performed to the display device management unit,
The display device management unit
The content display system according to any one of claims 1 to 3, wherein when the display rejection operation information is received , display of the content is stopped. In a content display method in a content display system in which a communication device and a plurality of display devices are connected,
The communication device is:
A voice call unit that implements voice calls;
A display device information storage unit for storing display device information including display capability of each display device;
Each display device
With a display,
The content display method includes:
The display device management unit of the communication device searches the display device information storage unit for display device information including display capability necessary for displaying content during the operation of the voice call unit;
The display device management unit transmitting a content display request only to a display device corresponding to the searched display device information;
The operation request image display control unit of the display device that has received the content display request from the display device management unit causes the display unit to display a display operation request image for requesting an operation for displaying the content;
If the communication unit of the display device has the operation, a step of transmitting display operation information indicating that the operation has been performed to the display device management unit;
The display device management unit includes the step of displaying the content on the display device. In a content display method in a content display system in which a communication device and a relay device are connected and the relay device is connected to a plurality of display devices.
The communication device is:
It has a voice call unit that realizes voice calls.
The relay device is
A voice call relay unit for relaying the voice call;
A display device information storage unit for storing display device information including display capability of each display device;
Each display device
With a display,
The content display method includes:
The display device management unit of the relay device searches the display device information storage unit for display device information including display capability necessary for displaying content during the operation of the voice call relay unit;
The display device management unit transmitting a content display request only to a display device corresponding to the searched display device information;
The operation request image display control unit of the display device that has received the content display request from the display device management unit causes the display unit of the display device to display a display operation request image that requests an operation to display the content;
If the communication unit of the display device has the operation, a step of transmitting display operation information indicating that the operation has been performed to the display device management unit;
The display device management unit includes the step of displaying the content on the display device. The display apparatus management unit, wherein the display if the operation information received, according to claim 5 or 6, wherein further comprising a step of erasing the display operation requested image on a display device that does not transmit the display operation information Content display method. If the operation request image display control unit has received the content display request, a step of causing the display unit to display an image requesting an operation for refusing to display the content;
  If the communication unit has performed the operation, transmitting display refusal operation information indicating that the operation has been performed to the display device management unit;
  The display device management unit, when receiving the display rejection operation information, stopping displaying the content;
  The content display method according to claim 5, further comprising:

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