Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1975-02-27
1977-08-09
Martin, John C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 38, H04N 9535
Patent
active
040415317
ABSTRACT:
Signal delaying means, included in the luminance channel of a color television receiver, are responsive to the television video signal processed in the receiver. A portion of the signal delaying means serves to equalize the time delays of signals processed in the chrominance and the luminance channels of the receiver. A plurality of differently delayed video signals are developed at signal coupling means associated with the signal delaying means. At least two of the delayed video signals, spaced apart in time by a predetermined interval inversely related to a frequency at which it is desired to relatively attenuate the video signals, are combined to determine the peaking characteristics of the luminance channel. At least one other of the delayed video signals is used to produce a signal to control the bandwidth characteristics of the luminance channel. Additional means may be provided to allow the amplitude of the output signal derived by combining the peaking and bandwidth controlling signals to be controlled so that signals processed in the luminance channel may be either peaked or depeaked, depending on the quality of the incoming video signals.
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Emanuel Peter M.
Kurdyla Ronald H.
Martin John C.
RCA Corporation
Whitacre Eugene M.
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