System for reducing band width of image signal

Details System for reducing band width of image signal System for reducing band width of image signal

1978-01-09

1979-07-31

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

340347DD, H04N 100

Patent

active

041632605

ABSTRACT:
A system for reducing or compressing band width of an image signal by logically combining each picture element on at least two scanning lines to form 0 and 1 sections, and coding the 0 and 1 sections for transmission. The coding step comprises run length-coding one of the 0 and 1 sections, and converting the other section into a series of raw signals with an end signal positioned at the end of the raw signals train for indicating the termination thereof.

REFERENCES:
patent: 3804975 (1974-04-01), Abe
patent: 3992572 (1976-11-01), Nakagome
patent: 4028731 (1977-06-01), Arps

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