JP3091926B2 - Multimedia terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multimedia terminal device for performing information communication between terminals having a plurality of communication functions by using a digital network such as ISDN as a transmission path.

[0002]

2. Description of the Related Art In a conventional private branch exchange (PBX) or the like, an incoming call is not displayed even if an incoming call is received at a terminal by setting an incoming call rejection in a control device such as a PBX for each terminal by a terminal operator. Service, that is, a call rejection service. On the other hand, the ISDN network (service
Even if the ISDN terminal is connected to the integrated services digital network, the terminal
By registering the N number (a number corresponding to a telephone number) in the terminal, the calling number notification and the terminal included in the information element of the call setting message sent from the ISDN when the call setting request is made from the caller side. It was compared with the ISDN number registered by the operator. As a result of the comparison, the ISD registered by the terminal operator
If it matches the N number, it displays the incoming call.
It has been determined that the request is a connection request from an unregistered terminal or that the information element of the call setup message does not include the calling number notification, and a service for rejecting the incoming call has been provided. Further, a service for rejecting an incoming call if one communication medium is specified and they do not match has been provided.

[0003]

As described above, the service of rejecting a call is provided for a single medium, but this is a communication form using a single medium. The service of displaying an incoming call or rejecting an incoming call by combining a plurality of media has not yet been provided. In the above-mentioned service, the terminal operator wants to reject the incoming call of only a single medium, but does not satisfy the separate request of receiving the incoming call indication in the combination of a plurality of media. . For example, voice (phone)
However, there is a natural need to reject only communication, but to communicate with audio and video (videophone). SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem, and it is possible to communicate only with media desired by a terminal operator or a media corresponding to a combination thereof, and to respond to incoming calls to unnecessary media. An object of the present invention is to provide a multimedia terminal device that does not have to be provided and can perform information communication between appropriate media.

[0004]

In order to achieve the above object, a multimedia terminal device according to the present invention is accommodated in a digital network using a signaling system capable of simultaneously setting and selecting a plurality of media at the time of call setup. An interface circuit for converting the digital code into user information and a call control signal, and the user information and call control signal from the terminal into a digital code, and a signal input to the terminal via the interface circuit and the digital network. And a signal control circuit for generating a call control signal to be sent from the terminal side by the operation of the terminal operator, a multimedia type that allows the incoming call registered by the terminal operator in advance and the Media information storage means for storing the combination, and media information of the calling terminal received from the signal control circuit. A) comparing the media type stored in the media information storage means with the media type stored in the media information storage means, permitting only incoming media having the same media type and combination thereof stored in the media information storage means, For example, it is characterized by having comparison analysis means for rejecting incoming calls .

[0005]

According to the present invention, the terminal operator stores, in the media information storage circuit, the types of media for which incoming calls are permitted and the combinations thereof. When a call control signal input from the network side via the digital subscriber line and the interface circuit is received, if the media type information registered by the terminal operator exists in the media information storage circuit, the comparison analysis circuit is operated. Whether to reject incoming calls
Make a judgment. In this case, the comparison and analysis circuit compares the media type of the originating terminal received from the signal control circuit with the media information storage circuit, and permits only the media in which the combination of the media registered by the terminal operator matches the incoming call. If there is any media that does not match, incoming call rejection is performed. That is, in this case, the combination of the media types registered in the media information storage circuit and the media type from the calling terminal have an AND relationship.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of a multimedia terminal device showing one embodiment of the present invention. Here, as a multimedia terminal device accommodated in a digital network using a signaling method capable of simultaneously setting / selecting a plurality of media at the time of call setting, a terminal device handling voice, image and data is assumed. Note that the multimedia terminal device can be both a calling terminal and a called terminal. In FIG. 1, reference numeral 1 denotes an interface circuit for synchronizing a digital signal with a network, disassembling / assembling a connection control signal and a digitized voice / image / data information signal, and 2 denotes an interface circuit with the network. A signal control circuit 3 for transmitting and receiving a call control signal between the devices and performing function / media identification processing; controlling a communication media device and controlling communication information; converting a voice signal and an image signal into a digital signal; A media control circuit for converting the image signal into an image signal, a system control circuit for executing control processing of the entire multimedia terminal device, a media information storage circuit for storing media information registered by a terminal operator,
6 is a comparison / analysis circuit for comparing the media information stored in the media information storage circuit with the media identified by the signal control circuit, and determining whether to display the incoming call or reject the incoming call;
Is a keyboard for inputting operations, 8 is a display device for displaying received images and data and displaying input from the keyboard 7, and 9 is a keyboard 7 and a display. Device 8
A work station for controlling images and data input from and output from the TV, a television camera 10, a voice communication circuit 11 including a communication circuit, a handset, a ringer, and the like. Reference numeral 12 denotes a system bus, which includes an interface circuit 1, a signal control circuit 2, a media control circuit 3,
A system control circuit 4, a media information storage circuit 5, a comparison and analysis circuit 6, and a service control circuit (work station) 9 are connected to the bus 12. The exchange of information is performed via the system bus 12.

FIG. 2 is a diagram showing an example of media information registered in the media information storage circuit in FIG. The media information that the terminal operation actually registers in the media information storage circuit 5 includes a required media type which is the minimum required for permitting an incoming call, and when communication is requested in a medium other than the essential media, the incoming call in that medium is received. There is information on each type of optional media to be permitted. Two types of information as shown in FIG. 2 are registered in the media information storage circuit 5 of FIG. Hereinafter, a basic data transmission procedure performed by the multimedia terminal device shown in FIG. 1 will be described. FIG.
FIG. 4 is a flowchart showing the operation of the signal control circuit in FIG. 1 up to the reception permission determination, and FIG. 4 is a communication sequence chart between the calling terminal and the called terminal. First, an operation in a case where communication can be performed with the media desired by the receiving-side terminal operator will be described. As shown in FIG. 4 (a), before receiving the incoming call signal and when the terminal is idle, the called-side terminal operator selects the required media type and the optional media type as shown in FIG. It is registered in the media information storage circuit 5 via the board 7. In this example, audio and image are registered as essential media types, and no designation is registered as an optional media type. The originating terminal operator specifies a desired communication medium from the keyboard 7. Here, it is assumed that voice / image / data is input. Further, by inputting the dial number of the communication partner (destination terminal), a call signal including the media type of voice / image / data is transmitted to the network.

[0008] The network receiving the call signal from the calling terminal transmits a calling signal including the media type of voice / image / data to the called terminal in order to establish a connection to the called terminal. I do. The incoming call signal transmitted from the network is received by the signal control circuit 2 through the interface circuit 1 (S1). The signal control circuit 2 identifies the media type of the incoming call signal.
Then, an inquiry is made to the media information storage circuit 5 (S
2) After obtaining the registered media information (S
3), the media information (audio / image as essential media) and the media type of the incoming call signal (audio / image / data)
Is sent to the comparison analysis circuit 6 (S4). After waiting for a signal (S5), here, the comparison analysis circuit 6 receives, as a comparison result, an incoming call permission signal indicating that only the voice / image of the essential media registered by the terminal operator is received (S6). ). Upon receiving this signal, the signal control circuit 2 sends a calling signal to the network via the interface circuit 1 (S7). Further, the media control circuit 3 notifies the media control circuit 3 that there is an incoming call on the media of voice and image, and the media control circuit 3 controls the display controlled by the voice communication circuit 11, the television camera 10 and the service control circuit 9. The use state of the device 8 is checked (S8). Here, since all of them can be used, the ringer of the voice communication circuit 11 sounds and the display device 8 displays that there is an incoming voice and image (S9). Thereafter, when the receiving-side terminal operator goes off-hook, the media control circuit 2 receives this signal and sends a response signal including the media type of audio / video to the network (see FIG. 4). Upon receiving this response signal, the network sends a response signal including the media type of voice / image to the calling terminal, and notifies that the receiving terminal has accepted the voice / image call. Also, the net
A response confirmation signal is sent to the receiving terminal to confirm the response of the receiving terminal. At this point, the call between the calling terminal and the voice and image of the receiving terminal is established. As a result, the calling terminal and the called terminal can communicate with each other via the network according to the transmission procedure set for each medium.

[0009] Next, an operation in the case where communication with the desired terminal operator cannot be performed with the desired media will be described. As shown in FIG. 4B, in the same manner as the above-described operation, before receiving the incoming call signal and when the terminal is idle, the receiving-side terminal operator sets voice and audio as essential media types. It is assumed that no designation is registered in the media information storage circuit 5 for the image and optional media types. Also, the calling operation of the calling terminal operator is the same as the above-mentioned operation, but it is assumed that the communication desired medium is input as voice. Then, a call signal including the media type of the voice is transmitted to the network. Upon receiving the call signal from the calling terminal, the network sends a calling signal including the media type of voice / image / data to the called terminal in order to connect to the called terminal. . The incoming call signal transmitted from the network is received by the signal control circuit 2 via the interface circuit 1 (S1). The signal control circuit 2
Identify the media type of the incoming call signal. Then, an inquiry is made to the media information storage circuit 5 (S2), and the registered media information is obtained (S3). The obtained media information (sound and image as essential media information) and the media type of the incoming call signal (sound as communication desired media information) are sent to the comparison analysis circuit 6 (S4). here,
The essential media registered by the terminal operator is voice / image, and an incoming call rejection signal meaning that incoming call is rejected in communication using only voice is received as a comparison result (S5, S1).
0). Upon receiving this signal, the signal control circuit 2 sends a release completion signal to the network via the interface circuit 1 including a cause indicating that the incoming call is rejected (S11). When the network receives the release completion signal, the network sends a release completion signal including a reason for rejecting the incoming call to the calling terminal to notify that the voice call has not been established.

[0010]

As described above, according to the present invention,
When the terminal operator registers information on the type of media desired and the combination thereof, and identifies the media type included in the incoming call signal, the terminal operator compares and analyzes with the registered media type information. It is possible to perform communication using only a desired media or a media corresponding to a combination thereof, and it is possible to prevent a response to an incoming call to an unnecessary media. Therefore, information communication can be performed between appropriate media.

[0011]

[Brief description of the drawings]

FIG. 1 is a block diagram of a multimedia terminal device showing one embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of media information registered in a media information storage circuit of FIG. 1;

FIG. 3 is an operation flowchart up to the incoming call permission determination in the signal control circuit of FIG. 1;

FIG. 4 is a communication sequence chart between the calling terminal and the called terminal when communication is possible with the media desired by the called terminal operator and when communication is not possible.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interface circuit 2 Signal control circuit 3 Media control circuit 4 System control circuit 5 Media information storage circuit 6 Comparative analysis circuit 7 Keyboard 8 Display device 9 Service control circuit (work station) 10 Television John camera 11 Voice communication circuit 12 System bus

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-307346 (JP, A) JP-A-3-58065 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01M 1/00 H01M 1/24-1/253 H01M 1/58-1/62 H01M 1/66-1/82 H01M 11/00-11/10

Claims (1)

(57) [Claims] 1. A digital network using a signaling system capable of simultaneously setting and selecting a plurality of media at the time of call setting, wherein a digital code from the digital network is used as user information and a call control signal, and user information from a terminal side An interface circuit for converting a call control signal into a digital code, a signal input to the terminal via the interface circuit and the digital network, and transmitted from the terminal by an operation of a terminal operator. And a signal control circuit for generating a call control signal to be transmitted. A media information storage means for storing media types and combinations thereof for which incoming calls are permitted in advance registered by the terminal operator, and the signal control circuit Media type of the calling terminal received from the server and media stored in the media information storage means. (A) comparing the media type and the media type stored in the media information storage means and permitting the reception of only the media that matches the combination, and rejecting the incoming call if there is at least one media that does not match. A multimedia terminal device comprising: