Timing signal extracting circuit

Details Timing signal extracting circuit Timing signal extracting circuit

1984-09-27

1987-04-14

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328155, 328109, 307511, 331 25, 331 17, H03B 100, H03K 513, H03L 700

Patent

active

046582177

ABSTRACT:
A timing signal extraction circuit has a clock signal extractor for extracting from a transmitted data signal a clock component synchronous with the transmission rate of the transmitted signal, an oscillator having an oscillation frequency about M (M: an integer) times as high as the transmission rate of the transmitted signal, a phase-locked loop detecting the phase difference between the output signal of a frequency divider frequency-dividing the output signal of the oscillator and the output signal of the clock signal extractor thereby controlling the operating phase of the oscillator, and a logic circuit producing a plurality of pulse trains whose bit rate is equal to the transmission rate of the transmitted signal and which have respectively different phases. A pulse train having a desired phase is selected from among the plural pulse trains to provide a decision timing signal.

REFERENCES:
patent: 3609560 (1971-09-01), Greenburg
patent: 4257007 (1981-03-01), Brooks et al.
patent: 4495473 (1985-01-01), Treise
patent: 4517531 (1985-05-01), Tan et al.

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