JPH01137764A - Telephone terminal equipment - Google Patents

Abstract

PURPOSE:To obtain a title equipment which can freely transmit the image of an object at an apart place and whose operability is excellent by making a video input part attachable/detachable on/from an equipment main body provided with the video input part and a video display part, etc. CONSTITUTION:In case of transmitting the video of an operator who is talking with a telephone to an called party, the transmission is executed in a state that the video input part 1 is mounted on the equipment main body 14 in most cases. In this case, the framing of a video is executed by moving the video display part 2 into a desired posture together with a tilt base 17. By operating an image transmission button 3, a video caught by the input part 1 is stored temporarily in a first video memory 12, and transmitted to the called party via a video signal modulation part 10. When the part 1 is apart from the main body 14 and can not well catch a video, the part 1 is dismounted from a video input part holding member on the side surface of the display part 2, and carried to the place of an object and set therein, and by operating the button 3, a video signal is transmitted to the called party.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a telephone terminal device, such as a video telephone, which transmits and receives video and audio via a telephone line.

2. Description of the Related Art Conventionally, for example, there have been videophones that transmit and receive audio and video via telephone lines, but in recent years this type of device has been attracting attention as the amount of information has increased.

A video telephone, which is an example of this type of telephone terminal device, will be described below.

Fig. 3 is a perspective view of a conventional video telephone, and Fig. 4 is a block diagram showing its circuit configuration.
2 is a video display section consisting of a CRT (cathode ray tube), a liquid crystal display panel, etc.; 3 is a video input section that transmits the video captured by the video input section 1 to a telephone line; This button is used to send an image to the other party via the . 4 is a telephone line, 5 is a line interface section, 6 is an audio signal/video signal changeover switch that switches the flow of signals arriving on the telephone line between the audio side (A) and the video side (B), and 7 is the audio signal/video signal switching switch. When the signal changeover switch 6 is connected to the audio side, it is a video signal discriminator that detects whether there is a video signal in the signal sent from the other party via the telephone line. A signal indicating this is sent to the audio signal/video signal changeover switch 6. 8 is an audio output section such as a speaker, 9 is an audio input section such as a microphone, and 10 is a video signal taken in by the video input section 1. 11 is a video signal demodulation unit that demodulates the modulated video signal sent via the telephone line, and 12 and 13 are respective first video signals. memory, a second video memory.

The operation of the conventional video telephone configured as described above will be explained below.

First, in the initial state, the audio signal/video signal changeover switch 6 is connected to the audio side (A). When a call is made or received in this state, the calling party and the called party are connected via the telephone line, and then normal voice communication is possible between them through the voice output section 8 and the voice input section 9. Become. If you want to send a video in this state, first place the subject in front of the video input section 1 and press the video feed button 3 to activate the audio signal/video signal changeover switch 6 to switch the signal flow to the audio side ( The video information inputted into the first video memory 12 by the video input section 1 after switching from A) to the video side (B) is modulated by the video signal modulation section 10 into a signal that can be transmitted over a telephone line. Thereafter, the modulated video signal is sent to the other party via the telephone line 4 from the line interface section 5 with a signal for audio/video switching added to the beginning. Then, the audio/video switching signal is detected by the video signal discriminating unit 7 of the telephone terminal device of the other party, and the audio/video signal switching switch 6 is operated to change the flow of the signal from the audio side (A) to the video side ( Switching to step B), the video signal demodulation section 11 demodulates the video signal, stores it in the second video memory 13, and displays it on the video display section 2.

After the video transmission ends, the audio signal/video signal changeover switch 6 automatically returns to the audio side (A>).

On the other hand, when a video is sent from the other party, the same process as described above is performed, and the received video is displayed on the video display unit 2 on the user's side.

Problems to be Solved by the Invention However, with the above-described telephone terminal device, if you want to send an image of a subject located far away from the telephone terminal device, you must either bring the subject in front of the video input section or conversely. If the subject is difficult to move, the telephone terminal device itself must be moved, which is a troublesome task.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a method for inputting video to a device body that includes a video signal modulation section, a video signal demodulation section, and a display device that displays the video signal as a visible image. The parts can be separated.

Effect of the Invention With the above-described configuration, the present invention allows the video input section to be carried separately from the main body of the device, and it is possible to freely send images even to a subject located at a remote location.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

FIG. 1 shows an external view of a video telephone, which is an example of a telephone terminal device according to an embodiment of the present invention, and is a perspective view of a video input section separated from the main body of the device. Moreover, FIG. 2 is a block diagram showing the circuit configuration. In this embodiment, the same components as those in the conventional configuration described above are given the same numbers, and detailed explanation thereof will be omitted.

In the figure, 14 is the main body of the device, which includes an image display section 2 composed of a CRT (cathode ray tube), a liquid crystal display panel, etc.
Image sending button 3, line interface section 5, audio signal/
A video signal changeover switch 6, a video signal discrimination section 7, an audio output section 8 such as a speaker, an audio input section 9 such as a microphone, a video signal modulation section 10, a video signal demodulation section 11, first and second video memories 12. It is equipped with 13.

Reference numeral 15 denotes a video signal transmission cable that electrically connects the video input section 1 and the first video memory 12 of the device main body 14 described above, and uses a curl cord. Further, the video input section 1 is configured so that it can be held by being hooked onto a video input section holding member 16 provided on the side surface of the video display section 2 of the main body 14 of the apparatus. Further, although details are not shown, the tilt table 17 on which the video display section 2 is mounted is configured to be rotatable and movable back and forth.

Next, the operation will be explained.

First, when transmitting an image of an operator making a telephone call to the other party, the image input section 1 is often attached to the main body 14 of the device. That is, the video input section] is hooked onto the side of the video display section 2.

At this time, the video is framed by moving the video display section 2 together with the tilt table 17 to a desired state.

The video input section 1 can be
The captured video is temporarily stored in the first video memory 12 and then sent to the other party via the video signal modulator 10.

In addition, if the video input section 1 is located at a distance from the device main body 14 and the video cannot be captured well even if the video input section 1 and the video display section 2 are rotated or moved back and forth together with the tilt base 17, the video input section 1 may be moved. The above operations can be performed by removing the video input unit 1 from the video input unit holding member 16 on the side of the video display unit 2, bringing only the video input unit 1 to the subject position, setting it, and operating the video feed button 3 on the device body 14. A similar operation is performed and a video signal is sent to the other party.

As a result, there is no need to bring the object you want to send an image close to this device, or move the entire telephone terminal device to the subject position.
The video memory 12, 13, video signal modulation section 10, video signal demodulation section 11, etc. are arranged on the main body 14 side of the apparatus, and only the video input section 1 is carried, so that operability is very good.

Effects of the Invention As described above, the present invention includes a device main body including a video input section, a video display section, a line interface section, a video modulation section, and a video demodulation section, and the video input section is connected to the device main body. By making it detachable, images can be sent freely even to subjects located far away, and a telephone terminal device with extremely good operability can be realized.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a video telephone which is a telephone terminal device according to an embodiment of the present invention, FIG. 2 is a block diagram showing its circuit configuration, and FIG. 3 is a television telephone which is an example of a conventional telephone terminal device. FIG. 4, a perspective view of the telephone, is a block diagram showing its circuit configuration. 1...Video input section, 2...Video display section, 3...Picture sending button, 4...Telephone line 5...Line Interface section, 6...
・Audio signal/video signal changeover switch, 7...
-Video signal discrimination section, 8...Audio output section, 9...Audio input section, 1o...Video signal modulation section, 11...Video signal demodulation 12...First video memory, 13...Second video memory, 14...Device main body, 15...Video signal transmission cable, 16...
...Video input section holding member, 17...Tilt stand Name of agent Patent attorney Toshio Nakao and one other person Figure 1 Figure 3 Procedural amendment (0 reference 1986! Mon/3)

Claims (1)

[Claims] A video input section, a line interface section connected to the telephone line, a video signal modulation section that modulates the video signal into a signal that can be transmitted over the telephone line, and a demodulation of the modulated video signal sent via the telephone line. and a video display section that displays the video signal from the video signal demodulation section and the video signal from the video input section as visible images; A telephone terminal device configured to be detachably attached to the device body.