KR950014382B1 - Transmissing device and method of reserving picture image - Google Patents

Abstract

blocking a sound signal path and a camera image signal path in case of sensing an input of a deferment key during a busy tone; sending a deferment image to other's person through an integrated service digital network; if the input of a deferment release key is sensed, connecting the sound signal path and blocking the transmission of the deferment image; and connecting the camera image signal path and restarting the call.

Description

Apparatus and method for transmitting a pending image in the hold function of a video telephone

1 is a flowchart of a voice and video communication control in the conventional hold function.

2 is a circuit diagram of a color video telephone according to the present invention.

3 is a flowchart of voice and video communication control during the hold function according to the present invention.

* Explanation of symbols for the main parts of the drawings

1,4: analog / digital converter 2: video codec

3: channel control unit 5: voice codec

6 telephone handset 7 central processing unit

8: Memory NT: Network Termination Device of Integrated Telecommunication Network

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a hold function in a video telephone, and more particularly, to an apparatus and method for transmitting a specific still image or a moving image (hereinafter referred to as a hold image) when performing a hold function.

The phone is now becoming more than just a voice-transfer, it's becoming a versatile, state-of-the-art phone with many useful features. Video phone, one of various special phones, is a special type that transmits / receives video (screen) signals as well as voice and pictures. It is also called a video phone. Equipped with. The video phone is particularly attracting attention as a future phone in the 21st century because it is possible to make a call while looking at each other's faces by taking a picture of the other party and receiving it on their own phone. In the early stages, it was only communication in the form of a still picture, but with the development of video communication technology, it was possible to transmit a moving picture.

On the other hand, the telephone generally has a hold function. According to the conventional moving picture hold function, not only the voice signal but also the image signal path is blocked by the hold key so that nothing appears on the screen of the counterpart.

FIG. 1 is a flowchart showing the procedure for controlling the hold function of the moving picture telephone as described above. When the hold key is detected, the passage of the voice signal and the image signal is cut off, and when the hold release key is input, the voice cutoff and image blocking state are released again. The process of doing so is illustrated. However, if the video path is blocked without any countermeasures as described above, if the hold state is long, the other party may feel bored, and even if the hold state is not long, the screen state where nothing is displayed may give a good feeling to the waiting party. Nor were we to give a bad feeling. It also had the drawback of noise when stopping the hold function and reconnecting and restoring the image data.

Accordingly, an object of the present invention is to minimize the bored feeling of the waiting party by providing a predetermined hold image while the hold function is performed, and to control the noise from appearing when stopping the hold function and reconnecting the video data. To provide an apparatus and method.

In order to achieve the above object, the present invention holds a camera and a monitor, and in a hold function control device of a telephone which is connected to a network termination device of a comprehensive information communication network to transmit and receive moving images, a hold key and a release release key, etc. Telephone means for performing a variety of functions for dialing and voice calls, and a hold image supply means for storing predetermined hold image data to be transmitted to a counterpart when the hold function is set by the hold key; A second analog / digital converting means for digitally converting the analog voice signal transmitted from the telephone receiver of the telephone means, converting the digital voice signal of the other party received through the network into analog, and transmitting the analog voice signal to the telephone receiver of the telephone means; Compressing digital voice data to be provided by the second analog / digital converting means and transmitting The digital audio signal of the other party is restored and provided to the second analog / digital conversion means, and the digital video signal transmitted from the other party is digitally converted from the analog video signal transmitted from the camera. First analog / digital converting means for converting the analog signal or the analog video signal transmitted from the camera to the monitor, and encoding the digital video signal transmitted from the first analog / digital converting means or from the other party. The video codec for decoding the digital video signal to be transmitted, and the audio, video, and retained picture of each of the audio codec, the video codec, and the reserved picture supply means in response to an input of the reserved key or the cancel release key. Voice and video of network termination equipment of information and communication network Transmitted by multiplexing according to the null or is characterized by a channel control means configured to block the transfer.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In addition, in the following description, many specific details such as components of specific circuits are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be obvious to those skilled in the art. In the following description of the present invention, detailed descriptions of related well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention.

2 is a block diagram of an embodiment of a color video telephone according to the present invention, which performs known telephone functions such as dialing using a hold key, a release key, and a keypad having a plurality of keys and other operations for a voice call. A central processing unit (7) for controlling not only the holding function in response to the input of the holding key or the releasing key, but also overall control of the overall operation of the color video telephone; and the central processing unit (7). In the memory 8 for storing various programs or initial data or various processing data by the program, and predetermined hold image data to be transmitted to the other party in the holding function according to the present invention, and in the talker of the telephone section 6, Digital conversion of the transmitted analog voice signal, and analog conversion of the digital voice signal of the other party received through the network The second analog / digital converter 4, which is transmitted to the receiver of the unit 6, and the digital voice data to be transmitted provided by the second analog / digital converter 4, are compressed and received through the network. Restores the digital audio signal to the second analog / digital conversion unit 4 and provides a digital audio signal to the second analog / digital conversion unit 4, and converts the analog video signal from the camera to the digital video signal. In the first analog / digital conversion unit 1 and the first analog / digital conversion unit 1 which converts analog or transmits its own analog image signal transmitted from the camera to a monitor (not shown). An image codec (2) for encoding a digital video signal transmitted and decoding the digital video signal transmitted to the channel controller or from a counterpart; Under the control of (7), the voice of the voice codec (5), the video codec (2) and the memory (8), and the voice of the network termination device (NT) of the ISDN And a channel controller 3 for multiplexing and blocking the transmission of the video channel 2B + D.

3 is a flow chart of voice and video communication control during the retention function according to the present invention. In other words, once a call is established and communication between voice and video data is initiated using a known videophone, the voice is As described above, the image of the camera photographing one's own image is digitalized by the first analog / digital converting unit 1 and encoded by the image codec 2 so as to be connected to the image channel by the channel controller 3. It is connected and delivered to the other party's monitor. While the call continues, the central processing unit 7 scans the keypad of the telephone unit 6 to check whether a key is pressed. If it is determined that the key is input, it is determined whether the key is a hold key. If the key is a hold key, the audio signal path and the camera image signal path controlling the channel controller 3 are cut. In order to perform the holding function, the holding image, which is previously stored in the memory 8, that is, a predetermined still image, is transmitted to the counterpart through the channel controller 3. Thereafter, when a hold release key input is detected, the voice signal is reconnected, the transmission of the held image is canceled, and the camera video signal is reconnected to intervene the call.

In this embodiment, a still picture is adopted as a reserved picture, but a moving picture may be used. Even when the above moving picture is adopted, the method of the present invention does not change, except that the image viewed by the other party is a moving picture or still picture. In this case, the still picture may be a picture of one's face taken during a call, a view prepared separately, a picture of a family member, or a screen on which a notice is written. In the case of a fairy tale, the material may be similar, and the fairy tale may be adopted as a pending picture. For example, a circuit may be considered to use videotape playback, and a person with a knowledge of this field may easily implement it in various ways.

As described above, the present invention not only minimizes the bored feeling of the waiter by providing a predetermined hold image while the hold function is performed, but also exhibits no noise when stopping the hold function and reconnecting and restoring the image data. There is an advantage.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (4)

A voice signal path and a camera video signal path are connected to a comprehensive information communication network, and a hold function control method of a moving picture telephone having a hold key, a hold release key, and a hold image supply means, wherein the input of the hold key is detected during a call. A first step of cutting the voice signal path and the camera video signal path and transferring the reserved image to the counterpart through the integrated information communication network; if the hold release key input is detected, the voice signal path is reconnected and the held image And a second process of resuming the call by reconnecting the camera video signal path and stopping the transmission of the camera. 1. A telephone holding function control apparatus for a telephone which is connected to a network terminating device of a general information communication network and transmits and receives a video, comprising a plurality of keys and handsets such as a holding key and a holding release key, and a dialing and voice. Phone means for performing various functions for a call, a hold image supply means for storing predetermined hold image data to be transmitted to a counterpart when the hold function is set by the hold key, and an analog audio signal transmitted from a talker of the call means. Second analog / digital conversion means for digitally converting, converting the digital voice signal of the other party received through the network to analog, and transmitting the telephone means to the receiver; and digital for transmission provided by the second analog / digital conversion means. Compressing the voice data, restoring the digital voice signal of the other party received through the network, The audio codec provided by the analog / digital conversion means and the analog video signal transmitted from the camera are digitally converted, and the digital video signal transmitted from the other party through the network is analog-converted or transmitted from the camera. A first analog / digital converting means for transmitting an analog video signal to the monitor, and a video codec for encoding a digital video signal transmitted from the first analog / digital converting means or decoding a digital video signal transmitted from a counterpart. And the hold key black is used for the voice and video of the voice codec, the video codec, and the reserved image supply means in response to the input of the hold release key. When multiplexing to the channel and transmitting or blocking the transmission Is suspended image transmission apparatus characterized in that it consists of a channel control means. The apparatus of claim 2, wherein the held picture is a still picture. The apparatus of claim 2, wherein the reserved image is a moving image.