JPS61219276A - Video disk device - Google Patents

Abstract

PURPOSE:To reproduce continuously a sound at reproducing a still picture by reproducing the still picture after a picture signal in picture plane memory is read out and reproducing a sound signal in a normal way. CONSTITUTION:When a changeover switch 17 is connected to the side of a terminal 15, which means the reproduction of the still picture, one of picture signals outputted from a demodulator 13 is inputted to a picture memory 14. It stores the image of one picture plane and always reproduces videos of one screen from the terminal 15. The sound signal is continuously outputted from a terminal 18 in the same way as a normal reproduction. After the completion of the reproduction of a sound, sounds from start can be repeatedly outputted again. Since a picture image is always read out of the picture memory, desired sound information recorded in a completely different area from the picture image can be repeatedly reproduced. When the still picture reproduction is released, that is, the changeover switch 17 is switched to a terminal 16, the picture image corresponding to underway sound signal can be obtained and the operation is returned to a normal reproduction.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a video disc device.

[Technical background of the invention and its problems]

Conventionally, video discs record image and audio information in a spiral manner. In a CLV (Constant Linear Velocity) video disc in which the rotational speed of the video disc is constant, image information for one or two or more screens is recorded in one revolution.

When playing still images from such a video disc using special image playback, after the video disc has rotated once or played two screens of images, return the pickup of the video disc player to the previous group and play the same screen. Continue playing. At this time, the audio is also played back, but for example, on an optical disc, one revolution is 1/30 seconds, and on a VHD, it is 1/15 seconds, which is not very long.
K is a short audio, and this audio is choppy and jarring (2), so current video disc players stop the audio when playing still images.In other words, even when playing still images, It was impossible to play audio continuously.

[Purpose of the invention]

An object of the present invention is to improve the drawbacks of the conventional devices described above, and to provide a video disc device that is capable of reproducing audio information even when reproducing still images.

[Summary of the invention]

In the present invention, an information signal from a video disc is detected by a pickup, and a demodulator demodulates the detected information signal into an image signal and an audio signal.

This image signal: In a video disk device that reproduces an image from two sources and audio from an audio signal, when playing still images,
The present invention relates to a video disc device comprising a screen memory for storing the image signal, and a still image is reproduced by reading the image signal from the screen memory, while the audio signal is reproduced normally.

〔Effect of the invention〕

According to the present invention (:), audio can be continuously reproduced even when still images are reproduced.

[Embodiments of the invention]

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

FIG. 1 is a schematic diagram of a video disc device according to the present invention. Video disc (10
The information signal embedded in is detected by the pickup αυ. The modulated signal from this pickup (11) is demodulated into a video signal and an audio signal in a demodulator uJ. During normal playback, the video signal and the audio signal are connected to terminal Ql.
Output is from lG and α barrels. In other words, the changeover switch μ
η is on the terminal side of ae.

Next, when a still image is reproduced, that is, when the switching switch f (Lη is connected to the terminal side of α9), one of the image signals output from the demodulator μm is input to the image memo 9 C14. This image memory C1 stores image signals for one screen and (IS
This one screen worth of video is always played back from the terminal.

The audio signal is output from the terminal a without interruption as in the normal playback described above. When the audio has finished playing, you can return to the beginning and output the audio repeatedly, and since the image is always read from the image memory,
Favorite audio information recorded in a completely separate area from the image can be repeatedly played back.

Then cancel still image playback, that is, selector switch a″r)
If you switch to terminal (11), you will get an image that matches the audio signal in progress and return to normal playback.

In this way, even on a video disc recorded at a constant linear velocity, audio can be reproduced continuously without interruption even when a still image is generated.

[Brief explanation of drawings]

FIG. 1 shows a schematic configuration diagram of a video disc device according to an embodiment of the present invention. 10... Video disc 11... Pickup 12... Motor 13... Demodulator 14.
・Image memory

Claims (1)

[Claims] A video disc device that detects an information signal from a video disc by a pickup, demodulates the detected information signal into an image signal and an audio signal by a demodulator, and reproduces images using the image signal and audio using the audio signal. is characterized in that when a still image is reproduced, a screen memory is provided for storing the image signal, and the still image is reproduced by reading the image signal from the screen memory, while the audio signal is reproduced as usual. video disc device.