Apparatus and method for reliably clocking a signal with arbitra

Details Apparatus and method for reliably clocking a signal with arbitra Apparatus and method for reliably clocking a signal with arbitra

1994-01-21

1995-03-28

Coles, Sr., Edward L.

Pulse or digital communications

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375373, 375342, 375347, 375354, H03D 100, H04B 710, H04L 700

Patent

active

054024536

ABSTRACT:
A clocking circuit and method for phasing a signal with an unknown phase to a clock signal includes a time requirement duration (TRD) signal which has two states and the duration of one of the states is indicative of a combined setup and hold time requirement for the storage device intended to capture the unknown phase signal. The TRD signal is then clocked as a function of the unknown phase signal and called a toggle clock phase (TCP) signal. The TCP signal is then used to modify the phase of a clock enable for the storage device signal to ensure adequate setup and hold time for the clocking of the unknown phase signal.

REFERENCES:
patent: 4206479 (1980-06-01), Hayward
patent: 5099477 (1992-03-01), Taniguchi
patent: 5128970 (1992-07-01), Murphy
patent: 5146477 (1992-09-01), Cantoni
patent: 5157696 (1992-10-01), Hara
patent: 5274676 (1993-12-01), Gosi
patent: 5297173 (1994-03-01), Hikmet
Manual for RCA TBC-8000 Digital Time Base Corrector, pp. 22-23, (May 1981).

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