JPH02113761A - Television telephone system - Google Patents

Abstract

PURPOSE:To protect a privacy by sending an image according to a necessity after an opponent is confirmed without sending the image at the same time as an incoming in the case except for a specified call opponent. CONSTITUTION:When the incoming is executed to an interface circuit 14, a number checking circuit 16 checks a specific opponent telephone number to be storingly registered in a telephone number storing part 9 to the telephone number obtained through a number generating circuit 12. In the case of non- coincidence, first, only a voice codec part 6 is connected by a switching circuit 8, the communication with the opponent through the use of the telephone is executed by a transmitting and receiving circuit 3, a dial and the image adding key of a key input part 2 are operated according to the necessity, the switching circuit 8 is operated through an interface control part 1, an image codec part 7 is additionally connected, and the image at the incoming side is outputted from a camera input part 4. Thus, at the time of preventing the image from being seen according to the opponent, a problem on the privacy cannot be generated.

Description

Detailed Description of the Invention (Technical Field to which the Invention Pertains) The present invention provides a method for establishing a communication state at the same time using voice and image media when there is an incoming call from a predetermined call party, but for other parties. The present invention relates to a video telephone device having a switching function that allows communication to be established using image media if necessary after confirming the time by voice.

(Prior Art) Videophone devices used in general households have a configuration in which telephone calls and television images are transmitted over the same line, and a caller number is not transmitted. Therefore, when a call is received from the other party's videophone device, the other party's (
The image (face) of the called party is sent to the other party before the calling party can confirm it.

Depending on the recipient, the person may not want to see the image, which creates more privacy issues than with conventional telephones.

(Purpose of the invention) The present invention connects both the telephone and the image only when a call is received from a specified party, and otherwise confirms the other party by telephone, adds an image as necessary, and allows The objective is to provide a videophone device that can reflect

(Structure of the Invention) (Characteristics of the Invention and Differences from the Prior Art) 1. In order to achieve the object described in 1-, the present invention provides a videophone device that uses voice and image media and allows a person to make a telephone call while seeing the face of the other party. , a means for storing the telephone number of the other party in advance, a means for collating the stored telephone number with the incoming telephone number, and when a match is found by the collating means, simultaneously connecting the audio and image media to establish a communication state, and The main feature is that it consists of a switching means that connects only the audio media when there is a mismatch, and connects the image media as necessary after confirming the other party by voice.

With conventional technology, when a call is received, an image of the called party (
However, the present invention is different in that the image is not sent to anyone other than the specified party at the same time as the call is received, and images can be sent as necessary after confirming the other party. .

(Embodiment) One of the services provided by the Total Services Digital Network (TSDN) is a videophone service that allows a person to make a call while viewing the image of the other party using a videophone device. Especially I
The SDN user network interface has two B channels (64kb/s) and one 1) channel (16kb/s).
b/s), the videophone device ri has one B
Communication is possible by using one channel for audio and the other B channel for images.

The present invention is configured to perform communication by connecting to an 15DN user network interface, and a block diagram showing the configuration of a videophone device according to an embodiment thereof is shown in FIG.
A block diagram showing the configuration of the interface control section 1 is shown in FIG.

On the 11th day, 1 is the user network interface control unit of the 15DN, which controls the identification of videophone calls, the detection of the telephone number of the other party's videophone device, and the operation of the switching circuit 8 and telephone number storage unit 9, which will be described later. .

Reference numeral 2 denotes a dial and key manual section, where the dial is for dialing the telephone number of the other party's video telephone device, and the key is an image addition key for adding an image. 3 is a transmitting/receiving circuit, and the so-called handsera 1-14 is a camera input section that captures an image of the person talking (
(face) and outputs it. Reference numeral 5 denotes a video output section on which an image (face) of the other party is displayed. Reference numeral 6 denotes an audio codec unit that divides the audio into three parts (A, /D conversion). 7 is the image codec section.

Encode the image (A/D conversion). Reference numeral 8 denotes a switching circuit controlled by the interface control section, which allows the switching circuit to select whether both the audio codec section 6 and the image codec section 7 are connected to the interface control section J, or only the audio codec section 6 is connected, as necessary. A switching connection is made to determine whether to additionally connect the image codec unit 7. Reference numeral 9 is a telephone number storage section in which the telephone number of the other party inputted in the dial and key input section 2 is stored. will be recorded.

In addition, in FIG. 2, 11 is a dial input buffer;
12 is a number generation circuit which encodes the telephone number input from the dial and key input section 2; Reference numeral 13 denotes a call control unit which performs identification control of a 1 call type call number.

14 is an interface circuit that accommodates a transmission line Q and a reception line Q2. Reference numeral 15 denotes a called side control unit which performs identification control of a called telephone number. Reference numeral 16 denotes a number verification circuit, which compares the other party's telephone number stored in advance in the telephone number storage section 9 and the incoming call control section 15.
Verify the calling phone number identified in . Reference numeral 17 denotes a switching output buffer; channels B and B2 are channels for audio and nine images, respectively; when the switching circuit 8 receives an output from the number matching circuit 17, the switching circuit 8 outputs the output from the audio codec unit 64 to the image codec unit 7 and the interface circuit; Fourteen switching connections are made.

Next, the operation of this embodiment will be explained by the videophone operation sequence flow shown in FIG. 3, the diagram showing the procedure for controlling within the videophone device in FIG. 4, and the procedure for controlling using the network signal in FIG. This will be explained using figures.

Prior to communication, the video telephone device dials a specific telephone number of the other party using the dial and key manual unit 2,
The telephone number is encoded by the number generation circuit 12 via the dial manual buffer 11 of the interface control section], and stored and registered in the telephone number storage section 9 (see Fig. 3).
1)).

This W record is similar to the conventionally known input method called repertoire re-dial method. for example,
This is a so-called abbreviated dialing system in which 10 to 20 telephone numbers are input and stored in advance, and when making a single call, the MA telephone number is retrieved by inputting 1 to 2 digits of dial.

Now, when an incoming call is received at the interface circuit 14 of the interface control unit 1 via the incoming call #iI02 (Fig. 3 (2)), the incoming call control unit 15 identifies the videophone call and the calling party's telephone number. The number matching circuit matches the specific telephone number stored and registered in the telephone number storage section 9 with the telephone number obtained via the number generation circuit 12 (the number matching circuit 16 outputs the data to the number matching circuit 16) Figure 3 (3)).

If -., the switching circuit 8 is operated via the switching output buffer 17, and the B signal for audio is output.

channel and channel B for image ii+11 are simultaneously connected to the audio codec unit 6, image codec unit 7, and interface circuit]4, and the outgoing/receiving line Q1. Videophone communication is performed via Q2 (FIG. 3 (4)).

If there is a mismatch, first connect only the audio codec unit 6 using the switching circuit 8 (Fig. 3 (5)), then use the transmitting/receiving circuit 3 to communicate with the other party by telephone, and use dialing and key manual input as necessary. By operating the image addition key of the section 2, the switching circuit 8 is operated via the interface control section 1, the image codec section 7 is additionally connected, and the image of the called side is output from the camera input section 4 (see Fig. 3). 6)).

When controlling a specific example of the above operation within a videophone device (
(Figure 4) and control using network signals (Figure 5)
About Heru.

(a) When controlling within the videophone device (Fig. 4) The videophone device (Δ) first stores the telephone number in the telephone number storage section 9.
, and receive a called number from network (B) that has the telephone number of the other party (calling party) and media identification (telephone + video) (A). Regardless of whether the verification in the number verification circuit 16 matches or does not match. The videophone device (A,) is connected to the network (B)
Answer (phone + video) (b).

At this time, the video telephone device (A) has a voice communication function, that is, the transmitting/receiving circuit 3 operates normally. However, regarding the image function, although the other party's image is received and output by the video output section 5, the camera input section 4 of the own (receiving side) videophone device (A) is not activated and is not sent to the other party. to control (tsu).

Communication is performed in this state, and if it is determined that the image function is necessary, the dial and key human power section 2
By pressing the image addition key and controlling the switching circuit 8, a normal videophone call can be made between the videophone device (A) and the network (B) (1).

(b) When controlling using network signals (FIG. 5) If the number matching circuit 16 does not match, only telephone communication is performed first, and control is performed to add video later.

Now, when the videophone device (A) receives an incoming call signal including the telephone number and media identification from the network (B), if the verification does not match, the videophone device (A) responds to the incoming call (voice response). (only communication possible) is returned (b).

As a result, the switching circuit 8 is operated and only telephone communication is performed by the transmitting/receiving circuit 3.

If image communication becomes necessary during communication, operate the image addition key on the dial and key human power section 2 to make an image media call (number, video) (1), and then use the network (B).
After receiving a call response (video) from the other party (e), videophone communication becomes possible (power).

(Effects of the Invention) As explained above, the present invention is based on 9. Communication with the recorded videophone device of the other party is identified so that simultaneous communication can be performed with audio and image media, and with other parties,
First, a voice confirmation was performed, and then image media communication was possible. Therefore, the called party can use or not use the image media depending on the other party, so privacy can be protected.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a videophone device according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the interface control section of FIG. 1, and FIG. 3 is a videophone operation sequence. Flow, FIGS. 4 and 5 are diagrams showing control procedures. 1 Interface control section, 2...Dial and key manual section, 3...Talking/receiving circuit, 4...Camera input section, 5...Video output section, 6.Audio codec section, 7...Image codec section , 8...
・Switching circuit, 9 ・Telephone number storage section, 11 Dial person cover sofa, 12...Number generation circuit, 13...
Transmission control section, 14... Interface circuit, 15.
・Incoming call control unit, 16 ・Number verification circuit, 17 ・
・Switchable out-cover sofa. Patent Applicant: Nippon Telegraph and Telephone Corporation -11 = Figure Video Telephone Table 1 (A) #Field (B) 11.37606) Figure Video Telephone Equipment (A> Network (B)

Claims (1)

[Claims] In a videophone device capable of making a call while seeing the face of the other party using audio and image media, means for storing the telephone number of the other party in advance, means for collating the stored telephone number with the incoming telephone number, and the collation. switching means that connects the audio and video media simultaneously when the means match, and connects only the audio media when they do not match, and connects the video media as necessary after confirming the other party by voice. A videophone device characterized by: