Automatic peaking apparatus

Details Automatic peaking apparatus Automatic peaking apparatus

H - Electricity

04

N

350/60

H04N 9/77 (2006.01)

Patent

CA 1061889

AUTOMATIC PEAKING APPARATUS Abstract of the Disclosure Signal delaying means are coupled to a source of television video signals. A plurality of signal coupling means are coupled to the signal delaying means for developing a plurality of delayed video signals. At least a first and a second of the delayed video signals, spaced apart in time by a time interval substantially equal to NT/2, where T is the period of a signal component of the video signals and N is an integer greater than one, are combined to form a combined signal. A bandwidth determining signal is derived from at least a third of the delayed video signals spaced in time between the first and second delayed video signals. A peak response determining signal is derived by further combining the combined signal and the bandwidth determining signal. The amplitude of the peak response determining signal is controlled as a function of a control signal. In illustrative embodiments the apparatus is utilized to provide automatic luminance channel peaking and automatic color or chroma control (ACC). -1-

236975

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