Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1990-02-09
1991-05-21
Safourek, Benedict V.
Pulse or digital communications
Spread spectrum
Direct sequence
307269, 307470, 375119, H04L 700
Patent
active
050181688
ABSTRACT:
A clock signal conversion circuit receives a clock signal and a control signal and generates a converted clock signal. A flip-flop holds the control signal in response to the clock signal and outputs a held control signal. The clock signal is selectively masked by an or gate in response to the held control signal thereby outputting the converted clock signal. A set signal is generated by a NAND gate in response to the clock signal, the control signal and the held control signal. The flip-flop forces the control signal to a predetermined state in response to the set signal generated by the NAND gate.
REFERENCES:
patent: 4308472 (1981-12-01), McLaughlin
patent: 4636656 (1987-01-01), Snowden et al.
patent: 4644568 (1987-02-01), Canniff et al.
patent: 4780890 (1988-10-01), Kane
Fujitsu Limited
Safourek Benedict V.
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