Digital video and audio file system

Details Digital video and audio file system Digital video and audio file system

1979-08-03

1981-10-13

Faber, Alan

Facsimile and static presentation processing

Static presentation processing

Attribute control

360 33, 360 32, 360 9, 360 19, 358127, H04N 576

Patent

active

042951542

ABSTRACT:
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.

REFERENCES:
patent: 3921209 (1975-11-01), Yoshino
patent: 4003079 (1977-01-01), Woo
patent: 4150397 (1979-04-01), Russell
patent: 4175270 (1979-11-01), Zenzefilis

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