Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1987-12-29
1989-11-28
Shepperd, John W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358141, 358142, H04N 1114
Patent
active
048841277
ABSTRACT:
An NTSC compatible, single channel widescreen EDTV system encodes and decodes a television signal comprising (1) a main, standard format NTSC signal with 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. At an encoder, components 2 and 3 are intraframe averaged before modulating an alternate subcarrier. Component 1 is intraframe averaged above a given frequency before being combined with the modulated alternate subcarrier.
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Hurst, Jr. Robert N.
Isnardi Michael A.
General Electric Company
Herrmann Eric P.
Kurdyla Ronald H.
Shepperd John W.
Tripoli Joseph S.
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