Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1987-12-29
1989-08-08
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 12, 358141, H04N 1106, H04N 712, H04N 704
Patent
active
048558249
ABSTRACT:
An NTSC compatible, single channel widescreen EDTV system encodes and decodes a television signal comprising (1) a main, standard format NTSC signal wth auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) auxiliary high frequency side panel image information; and (3) auxiliary high frequency horizontal luminance information. High frequency components 2 and 3 are subjected to non-linear amplitude companding, with large amplitude compression at an encoder and inverse amplitude expansion at a decoder.
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Patent Abstract of Japan, vol. 10, No. 32, JP 60-190085.
Emanuel Peter M.
General Electric Company
Groody James J.
Kurdyla Ronald H.
Peng John K.
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