Apparatus and method for the compression and transmission of mul

Details Apparatus and method for the compression and transmission of mul Apparatus and method for the compression and transmission of mul

1991-04-19

1993-01-26

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358142, H04N 712

Patent

active

051826429

ABSTRACT:
Video data is compressed, at a first site, by a transform scaling data compressor (12), and carrier signals are modulated with audio and digital data by a delta modulation data modulator (14) and a delta-sigma modulation data modulator (16) respectively. Their output signals are combined by a multichannel data compressor (18) and transmitted to a second site, where the procedures are essentially reversed to effectively regenerate the data as originally formatted.

REFERENCES:
patent: 4196448 (1980-04-01), Whitehouse et al.
patent: 4652903 (1987-03-01), Lucas
patent: 4868653 (1989-09-01), Golin et al.
patent: 4967272 (1990-10-01), Kao et al.
patent: 4982283 (1991-01-01), Acampora

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