Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1991-10-03
1993-02-16
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 31, H04N 977, H04N 978
Patent
active
051875683
ABSTRACT:
A television receiver includes a frequency multiplexed video processor which processes chrominance and luminance signals in response to synchronously detected composite video information. The composite video signal is separated into a plurality of frequency spectra which are individually processed utilizing digital electronic circuitry to achieve high performance and cost effectiveness. A comb filter is operative within one of the processors to provide separation of the luminance and chrominance information within the chrominance signal bandpass to maintain high frequency luminance signal components. A separate processor and bandpass filter are operative to provide separate control of the luminance peaking within the system. Separation of chrominance band signals from the luminance signal prior to video clamping provides a burst-free backporch for improved video clamping in a digital video processor. Conventional luminance and chrominance processing converts the output signals of the multiplexed processor to RGB video signals which are applied to a conventional cathode ray tube display having a conventional deflection system associated therewith.
REFERENCES:
patent: 4424528 (1984-01-01), Karlock
patent: 4482916 (1984-11-01), Acampora
Chin Tommy P.
Zenith Electronics Corporation
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