04295154 is referenced by 67 patents and cites 4 patents.

A digital video and audio file system is provided for use in systems such as a center-to-end video communication system. In the file system, video information, such as a color television video signal, is digitized in such a manner that it is separated into a luminance (Y) signal and a carrier chrominance (C) signal and these separated components are processed by the code differential method and the variable length encoding method. The digital signal thus digitized is recorded in a digital recorder. On the other hand, audio information is digitized by the AD-PCM encoding method and recorded in the same recorder. In encoding the video and the audio information, a part of hardware is used in common for both the signals, thus saving the hardware of the file system.

Title
Digital video and audio file system
Application Number
6/63467
Publication Number
4295154
Application Date
August 3, 1979
Publication Date
October 13, 1981
Inventor
Masahiko Achiha
Iruma
JP
Yoji Shibata
Yokohama
JP
Kazushige Sako
Tokyo
JP
Katsumi Haji
Narashino
JP
Hidetoh Hata
Yokohama
JP
Agent
Craig and Antonelli
Assignee
Hitachi
JP
Nippon Telegraph Telephone Public
JP
IPC
H04N 5/76
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