发明名称 Color television signal sampling clock phase control system
摘要 A sampling clock phase control system includes, at a transmitter side, a circuit for generating a first phase reference signal phase-locked with a color burst of an input color television signal, and a multiplexer for multiplexing the color television signal encoded by a first sampling clock and the first phase reference signal and outputting the multiplexed signal to a channel. The control system includes, at a receiver side, a circuit for generating a second phase reference signal phase-locked with a color burst of a decoded color television signal, a phase comparator for comparing the phases of the first and second phase reference signals, and a circuit which is feedback-controlled by an output signal from the phase comparator and generates a sampling clock for D/A-converting a decoded reception signal.
申请公布号 US4843455(A) 申请公布日期 1989.06.27
申请号 US19880234057 申请日期 1988.08.19
申请人 NEC CORPORATION 发明人 SUZUKI, NORIO
分类号 H04N7/56;H04N9/44 主分类号 H04N7/56
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