KR960038865A - Recording and playback equipment in video on demand systems - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording and reproducing apparatus in an on-demand video system. To this end, a multimedia stream is provided at a high rate at a predetermined time compression rate than a normal playback and recording rate in a video on demand system. A video cassette recorder for recording and reproducing a recording medium comprising: a head drum, a drum motor, a capstan muffler, and the like, wherein the multimedia stream inputted at the predetermined time compression ratio based on a recording signal is synchronized with the time compression ratio to synchronize the drum motor and the capstan. A deck unit 20 for driving the motor to record the video stream, and intermittently reading the multimedia stream from the video tape while driving and stopping the drum coater and the capstan motor by synchronizing at the time compression ratio based on a reproduction signal. Wow; A first memory buffer 30 for storing and outputting the multimedia stream intermittently read from the deck unit 20 based on a control signal; A second memory buffer 40 for alternately storing and outputting the multimedia stream intermittently read from the deck unit 20 based on the control signal with the first memory buffer 30; A decoder (50) which decodes the multimedia stream outputted from the first or second memory buffers (30, 40) by using a moving picture express group (MPEG) method to process video and audio and output the same; A recording and reproducing apparatus in an on-demand video system including a microcomputer (10) for selectively outputting the recording signal, reproduction signal and control signal for controlling a video cassette recorder.

Description

Recording and playback equipment in video on demand systems

As this is a public information case, the full text was not included.

1 is a schematic block diagram showing a recording and reproducing system according to the present invention;

Claims (1)

A video cassette recorder for recording and reproducing a multimedia stream provided at a predetermined time compression rate at a higher speed than a normal playback and recording speed in a video on demand system, comprising: a head drum, a drum motor, and a cam. A multimedia motor, etc., having a predetermined time compression ratio based on a recording signal to drive a drum motor and a capstan motor in synchronism with the time compression ratio, to record on a video tape, and to generate the time compression ratio based on a reproduction signal. A deck unit 20 intermittently reading the multimedia stream from the video tape while simultaneously driving and stopping the drum coater and the capstan motor; A first memory buffer 30 for storing and outputting the multimedia stream intermittently read from the deck unit based on a control signal; A second memory buffer (40) for alternately storing and outputting the multimedia stream protruding intermittently from the deck unit (20) based on the control signal with the first memory buffer (30); A decoder (50) which decodes the multimedia stream from the first or second memory buffers (30, 40) by MPEG (Moving Picture Express Group) method, and outputs the image and audio by processing; And a microcomputer (10) for selectively outputting the recording signal, the reproduction signal and the control signal for controlling a video cassette recorder. ※ Note: The disclosure is based on the original application.