JPH06237403A - Video recording/reproduction system - Google Patents

Abstract

PURPOSE:To obtain the small sized light weight video recording/ reproduction system by which a picture of a video movie is reproduced on a large sized screen. CONSTITUTION:The system consists of a camcorder 1 and a liquid crystal projector 2, the camcorder 1 is provided with a video signal output terminal 3 and the liquid crystal projector 2 is provided with a video signal input terminal 4, and a signal is sent/received by connecting directly the video signal input/ output terminals 3, 4 to each other. Similarly the camcorder 1 is provided with a charging input terminal 5 and the liquid crystal projector 2 is provided with a charging output terminal 6 and the input terminal 5 and the output terminal 6 are connected to each other to charge up a charging battery mounted on the camcorder 1, then the charging battery is charged by having only to place the camcorder 1 onto the liquid crystal projector 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video recording / reproducing system comprising a camera-integrated VTR and a video display system.

[0002]

2. Description of the Related Art In recent years, a camera-integrated VTR (so-called video movie) having excellent portability has been developed as a device for recording video / audio information, and it has become possible to easily record / reproduce video / audio information. In this case, in reproduction, it is common to perform reproduction and viewing with a reproduction device connected to a separately prepared large-sized television receiver or the like, and it is necessary to prepare a dedicated connection cord for transmission of the video / audio signal. . Also, in a video movie, a small C is generally used.
It has a built-in RT or LCD viewfinder, but it is too small for playback and viewing.

On the other hand, a small liquid crystal projector for video reproduction has been developed, but it is necessary to use a connection cord for inputting a video signal.

Further, in many video movies, a rechargeable battery is used, and in this case, a dedicated charging power source is used. Similarly, a small liquid crystal projector also needs a power source such as another AC power adapter.

A conventional video recording / reproducing system will be described below. FIG. 4 is a schematic configuration diagram of a conventional video recording / reproducing system. In FIG. 4, 41 is a video movie, 4
2 is a video signal output terminal of the video movie 41, 43 is a rechargeable battery that supplies power to the video movie 41, 44 is a charging AC adapter for charging the rechargeable battery 43 and supplying power, and 45 is a video signal A code for transmission, 46 is a liquid crystal video projector, 47 is a video signal input terminal of the liquid crystal video projector 46, 48 is an AC adapter for supplying power to the liquid crystal video projector 46, and 49 is an external screen.

As described above, in the conventional video recording / reproducing system, the video movie 41 and the liquid crystal video projector 4 are used.
6 are connected by a complicated video signal transmission cord 45, and each is a charging AC adapter 44 and an AC adapter 4
Power is supplied from 8 to operate.

[0007]

However, in the above-mentioned conventional configuration, even when a large television receiver is used, a dedicated connection cord is required for transmitting a video signal from a video movie, and a small liquid crystal projector is used. In the same way, a connection cord for video signal input is also required, and it is necessary to prepare an AC adapter for both the video movie and the small liquid crystal projector, which complicates the entire system configuration and makes it easier to operate. It had the problem of being bad.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a video recording / reproducing system capable of easily connecting a camera-integrated VTR and a video display device.

[0009]

In order to achieve this object, a video recording / reproducing system of the present invention comprises a camera-integrated VT.
The camera-integrated VTR and the image display device each include an R and an image display device, and each has an electrical connection terminal, and signals are exchanged by direct contact between the two electrical connection terminals. ing.

[0010]

With this configuration, it is possible to reduce the number of components of the video information recording / reproducing system, reduce the size and weight, and improve the operability.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a video recording / reproducing system in a first embodiment of the present invention, showing a divided state. In FIG. 1, 1 is a video movie, 2 is a liquid crystal video projector, 3 is a video signal output terminal of the video movie 1, 4 is a video signal input terminal of the liquid crystal video projector 2, and 5 is a rechargeable type that supplies power to the video movie 1. A charging input terminal provided to charge the battery, 6 is a charging output terminal provided on the liquid crystal video projector 2 side, 7 is a viewfinder of the video movie 1, and 8 is an external screen.

The video recording / reproducing system of this embodiment is basically a video movie 1 having a video tape recording / reproducing section and a liquid crystal video projector 2 to which a liquid crystal panel is applied.
Composed of. The video movie 1 is a video signal output terminal 3 for outputting the video signal reproduced from the recorded video tape.
Is equipped with. The video signal output terminal 3 and the video signal input terminal 4 are designed so as to be in direct contact with each other and electrically connected to each other so that signals can be transmitted to each other. The liquid crystal video projector 2 is composed of a liquid crystal panel of about 1 inch using a polysilicon TFT, a light source lamp, a projection optical system, a video signal processing circuit, a liquid crystal panel drive circuit, etc., and enlarges a video by inputting a video signal. It can be projected. With such a configuration, it is possible to easily reproduce and display without using a connection cord, and without using a stationary VTR and a large-sized television receiver.

Further, since the charging input terminal 5 and the charging output terminal 6 are in direct contact with each other and electrically connected, the rechargeable battery built in or attached to the video movie 1 makes the video movie 1 a liquid crystal video. It is charged while it is attached to the projector 2.

In this way, the liquid crystal video projector 2 can function not only as a video playback display but also as a power source for charging the video movie 1, and by simply placing the video movie 1 on the liquid crystal video projector 2. You can play videos and charge rechargeable batteries. Thus, the video recording / reproducing system can be reduced in size and weight, the installation form can be simplified, and the recording function and the reproducing function can be separated and easily combined.

In the configuration of this embodiment, the video movie 1 needs to have at least a function of recording and reproducing a video signal, but the viewfinder 7
It is not necessary to provide a CRT type or liquid crystal type image display element, and it is sufficient to equip an optical viewfinder similar to a general simple camera. In this case, lower cost,
It is possible to reduce the size, weight and power consumption.

FIG. 2 is a schematic configuration diagram of a liquid crystal video projector used in the video recording / reproducing apparatus in the first embodiment of the present invention. In FIG. 2, 21 is a liquid crystal panel, 2
2 is a light source lamp, 23 is a screen, 24 is a mirror, 2
5 is an external screen, 26 is a liquid crystal panel drive circuit, 2
Reference numeral 7 is a video signal input terminal for receiving a video signal from the video movie 1, 28 is a charging power source for supplying electric power for charging the video movie 1 (not shown in FIG. 2), and 29 is an output terminal for charging. The liquid crystal video projector shown in FIG. 2 is equipped with a projection screen 23 in a part of the housing, and a mirror 24 is flipped up to project an image on the screen 23 so that the image can be viewed directly. Is. Further, by interposing the mirror 24, an image can be projected on the external screen 25. In this case, the projection light of the liquid crystal projector is horizontally flipped by the mirror 24, and is horizontally flipped again when viewed from the projection side, so that a normal image can be seen.

Not only the transmission of the video signal but also the transmission terminal of the audio signal is provided, and the liquid crystal video projector is equipped with the audio signal processing circuit and the speaker so that the audio can be reproduced together with the video.

Next, a video recording / reproducing system according to a second embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a schematic block diagram of a video recording / reproducing system according to the second embodiment of the present invention. In FIG.
31 is a video movie, 32 is a projection device, 33 is a liquid crystal panel, 34 is a backlight of the liquid crystal panel 33, 35 is an electrical connection terminal on the video movie 31 side, 36 is an electrical connection terminal on the projection device 32 side, and 37 is A charging power source, 38 is a projection optical system, 38a is a magnifying lens, and 39 is a screen. In the second embodiment, the image displayed on the electronic viewfinder using the liquid crystal panel 33 provided in the video movie 31 is projected on the screen 39 by the projection optical system 38 of the projection device 32. The liquid crystal panel 33 constituting the electronic viewfinder is made of, for example, polysilicon TF.
It is a liquid crystal panel of about 1 inch using T. At the same time as the light emitting portion of the liquid crystal panel 33 and the projection device 32 are optically coupled, the video movie 31 and the projection device 32 are directly electrically connected via the electrical connection terminals 35 and 36. . The projection device 32 is equipped with a projection optical system 38 for enlarging and projecting the image light emitted from the liquid crystal panel 33, and a screen 39 for displaying an image. As a result, a magnified image of the reproduced image of the liquid crystal panel 33 can be seen on the screen. In order to magnify and project the image on the liquid crystal panel 33, the magnifying lens 38a is moved or detached so that a real image can be projected.

Further, the irradiation intensity of the backlight 34 is the liquid crystal panel 3 when the reproduced image is projected on the screen 39.
It is necessary to intensify it more than when directly looking at the image of No. 3. Also in this embodiment, the power source 37 for charging the video camera is provided on the side of the projection device 32, and a mechanism for direct connection by the electrical connection terminals 35 and 36 is provided, thereby simplifying the system. It is also possible to equip the projection device 32 side with a speaker and reproduce an audio signal through an electrical connection terminal. In this system, when the image of the liquid crystal panel 33 is enlarged and projected, the video movie 31 is inverted since the vertical and horizontal directions are inverted with respect to the direct-view image.

[0022]

As described above, the video recording / reproducing system of the present invention comprises the camera-integrated VTR and the video display device, and the electrical connection terminals of both are in direct contact with each other without passing through the transmission cable to thereby provide the signal or power. It has a configuration to send and receive, and it is small and lightweight, space saving, and improved operability.
Low power consumption can be realized.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a video recording / reproducing system according to a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a liquid crystal video projector used in the video recording / reproducing apparatus according to the first embodiment of the present invention.

FIG. 3 is a schematic configuration diagram of a video recording / reproducing system according to a second embodiment of the present invention.

FIG. 4 is a schematic configuration diagram of a conventional video recording / reproducing system.

[Explanation of symbols]

1 video movie (camera integrated video tape recorder) 2 liquid crystal video projector (image display device) 3 video signal output terminal (electrical connection terminal) 4 video signal input terminal (electrical connection terminal) 5 charging input terminal (electrical) Connection terminal) 6 charging output terminal (electrical connection terminal)

Claims (5)

[Claims] 1. A camera-integrated video tape recorder (hereinafter referred to as a camera-integrated VTR) in which a video camera and a magnetic recording / reproducing device are integrated, and an image display device,
An image recording / reproducing system in which a camera-integrated VTR and an image display device are provided with electrical connection terminals, and signals, power, or signals are exchanged by direct contact between the electrical connection terminals. 2. A camera-integrated VTR has a built-in or mounted rechargeable battery, an image display device has a built-in power source for charging the rechargeable battery, and both have electrical connection terminals. The video recording / reproducing system according to claim 1, wherein the rechargeable battery is charged through the rechargeable battery. 3. The video recording / reproducing system according to claim 1, wherein the video camera has an electric viewfinder, and the video recording / reproducing device optically couples with the viewfinder to project an image. 4. The video recording / reproducing system according to claim 1, wherein the video display device is a front video projection type liquid crystal projector. 5. The image display device according to claim 1, further comprising a front image projection optical system, wherein a light beam emitted from the front image projection optical system is reflected by a reflecting mirror and projected on an external screen. Video recording and playback system.