JPH0442672A - Camcorder with television telephone function - Google Patents

Abstract

PURPOSE:To realize a camcorder provided with a television telephone function by adding a MODEM for television telephone set to the camcorder. CONSTITUTION:A camcorder is provided with a modulator 2 able to be con nected to a telephone cable 3 and converting a picture signal into a signal able to be sent through the telephone cable 3 and with a demodulator 4 converting a reception signal from the telephone cable 3 into a picture signal. Thus, a picture signal for a television telephone set is recorded on a magnetic tape 7 or a picture signal from the magnetic tape 7 is sent to the television telephone set by simple selecting operation of switches 9 - 11. Thus, the functions of the television telephone set and the camcorder are provided inexpen sively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to, for example, a camera-integrated video tape recorder having a videophone function.

[Conventional technology]

In conventional videophones, for example, an image of the transmitting side is captured by a camera, converted to a digital signal Vcg by a modulator, and then transmitted over the same cable as the telephone audio signal. In the case of reception, the signal sent through the telephone cape is reconverted into an image signal by a demodulator and displayed on a display device. A block diagram of a videophone is shown in km4 diagram Vc. In the figure, (11 is a camera that converts the image on the transmitting side into an electrical signal. (21 is a modulator that is connected to the camera +11 and converts the camera output signal into a digital signal;
131 #f A telephone cable that transmits the converted image signal (41 is a demodulator that demodulates the digital image signal sent from the telephone cable at the time of reception, (6) is a demodulator (4
) is a display device that displays the output of

On the other hand, a conventional camera-integrated video tape recorder processes the recording signal for recording on a 1 ka tape an image captured by a camera, and then records it on a magnetic tape. During playback, the signal extracted from the magnetic tape is processed as a playback signal, and then the image is displayed on the display device. A block diagram of the camera-integrated video tape recorder is shown in FIG. In the figure, (la) is a camera for converting images into electrical signals, (
B) is a recording signal processor for recording the signal from the camera (la) on a magnetic tape, 1F1 is a magnetic tape for recording signals, (8) is a magnetic tape for reproduction; from 7) A reproduction signal processor that processes the fused signal, and a display device that displays the rsa)H reproduction output.

[Problem to be solved by the invention]

Conventional videophones and camera-integrated video tape recorders have been made as completely different devices, so even though they have the same functions as cameras and display devices, they each have to be developed separately. In order to record the images received during a videophone call, you must prepare a separate video tape recorder and connect it externally to record the videophone. If you tried to send the message via the Internet, there were problems such as having to connect a video tape recorder externally to the videophone to send the message.

This invention was made to solve the above-mentioned problems, and its object is to provide a camera-integrated video tape recorder equipped with a videophone function.

[Means to solve the problem]

The camera-integrated videotape recorder with a videophone function according to the present invention is obtained by adding a videophone modem to the camera-integrated videotape recorder.

[Effect]

The videophone modem of the present invention can provide videophone functions at a low cost, and can easily record VC and videophone images, and easily transmit videotape recorder images over a videophone. be able to.

[Implementation row]

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

FIG. 1 is a block diagram of a camera-integrated video tape recorder with a video telephone function, which is an embodiment of the present invention. In the figure, the same reference numerals as those of the conventional device are used, and the explanation thereof will be omitted. In the figure, (9) is a switch that selects either the camera output signal or the video tape recorder playback signal for the video signal sent as a videophone, and the +101Hffl switch selects the video signal to be sent as a videophone, and the switch selects the video signal to be recorded on the tape (7) as the camera (lb) output signal or the video tape recorder playback signal. Switch to select whether the signal received by telephone is selected, aυ is the display device f (5b) Ic Switch to select whether the signal to be sent is the reproduction signal of magnetic tape (71) or the signal received by videophone, 02
Reference numeral 1 denotes an external telephone cable (a connector for connecting 31, t13) and a housing in which these are integrated.

Next, we will explain the operation◎ When transmitting the signal from the camera (11) via videophone, set the switch (9) to the a position, and the modulator (2) will send a digital signal! /c converted and sent via telephone cable 13). Further, when transmitting a reproduction signal from a video tape recorder, the switch (9) may be set to position b. Furthermore, if the switch side is set to position b, the camera output can be recorded on the magnetic tape at the same time as the transmission.

When receiving a videophone call, press switch α, 11 f a
By adjusting the position, images can be displayed on one display device (5b). Further, by setting the switch tio+ to the a position, the received signal can be recorded on the a-tape+71.

As mentioned above, by simply selecting the switches (91 to αυ), it is possible to record the videophone image signal on the magnetic tape (71) or send the image signal of the Yamaki tape (7) to the videophone. Since the display device (5b) and the display device (5b) can be used in common, the system can be constructed at low cost.

Fig. 2 is a block diagram of a camera-integrated videotape recorder with a video telephone function, showing another embodiment of the present invention. It is designed to be connected to a camera-integrated video tape recorder using a connector (Hla). Honji m
The camera-integrated videotape recorder has the advantage of being lighter in weight.It is integrated into the WVTRO3 and has a separate transmitter (14a) and receiver (15a) to provide the function of a cordless telephone. .

This embodiment eliminates the need for a connector and allows the camera output from a remote location to be sent via videophone, improving portability.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to provide the functions of a videophone and a camera-integrated videotape recorder at low cost, and it is also possible to easily record signals received by a videophone on a magnetic tape, and This has the effect of allowing signals to be transmitted via videophone.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a camera-integrated videotape recorder with a videophone function, which is an embodiment of the present invention, and Fig. 4 is a block diagram of a conventional videophone, and Fig. 5 is a conventional camera-1. (3) is the cable, +41. r
4a) is a videophone demodulator, (5b) is a display device, (
6) is a recording signal processor for a video tape recorder; (7)
is magnetic tape, +81 Fi reproduction signal processing device, +9
1), αυ is the switch (area), (uIa) is the connector, (131 is the camera-integrated VTR housing including the transceiver,
α4, r14a) d radio transmitter, Q61° (15a) indicates a radio receiver. In addition, the same symbol 9r in the figure! Same Also, lower the part corresponding to Vi.

Claims (1)

[Claims] A camera that images a subject, a recording signal processor that is connected to the output of this camera and can record image signals on a magnetic tape, a magnetic tape that is connected to this recording signal processor and records images, and this magnetic tape. a reproduction signal processor for reproducing the signal; a display device connected to the reproduction signal processor; a modulator connectable to a telephone cable and capable of converting an image signal into a signal that can be transmitted over the telephone cable; A demodulator is provided for converting the received signal from the telephone cable into an image signal, the modulator can input the output signal of the camera or the output signal of the reproduction signal processor, and the demodulator converts the demodulated output into the recording signal. 1. A camera-integrated videotape recorder with a videophone function, characterized in that it can output to a processor and/or the display device at the same time.