Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1989-04-20
1990-10-16
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 21R, 358 22, H04N 5445
Patent
active
049639790
ABSTRACT:
An auxiliary video input terminal (S-terminal) couples luminance and chrominance input signals to respective inputs of peaking circuits in the display processor of a receiver. The chrominance input signal is subjected to pre-distortion (de-peaking) to correct for sideband amplitude distortion in the chrominance peaking filter of the receiver thereby preventing color distortion in displayed images. The luminance signal is subjected to additional peaking at a frequency greater than the characteristic peaking frequency of the luminance peaking filter thereby enhancing the sharpness of wideband luminance input signals displayed by the receiver.
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patent: 4644387 (1987-02-01), Bell et al.
patent: 4660073 (1987-04-01), Baumeister
patent: 4677462 (1987-06-01), Bell
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"Hitachi S-VHS Digital Hi-Fi Videotape Recorder VT-Z70", pub. by TV GIJUTSU, Aug. 1987, pp. 24-37.
"Sony Introduces 8 mm Hi-Band Products", pub. in TV Digest, vol. 29, No. 7, Feb. 13, 1989, pp. 11-12.
Coalter Richard G.
Emanuel Peter M.
Groody James J.
RCA Licensing Corporation
Tripoli Joseph S.
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