Noise immunity window circuit

Details Noise immunity window circuit Noise immunity window circuit

1985-10-17

1988-04-26

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

375119, 375102, 328155, H04L 706

Patent

active

047409991

ABSTRACT:
A noise immunity circuit incorporates a first channel for tracking a train of periodic sync pulses and for locking a window to said pulses for rejecting spurious noise signals. A second channel senses when the sync pulses are displaced in phase and establishes a new rephased window that is in phase with the displaced sync pulses.

REFERENCES:
patent: 3684967 (1972-08-01), Kelly
patent: 3860952 (1975-01-01), Tallent et al.
patent: 4005476 (1977-01-01), Dickopp et al.
patent: 4028729 (1977-06-01), Browder
patent: 4074307 (1978-02-01), Dischert et al.
patent: 4196416 (1980-04-01), Stein
patent: 4203076 (1980-05-01), Yamashita
patent: 4220968 (1980-09-01), Scholz
patent: 4459621 (1984-07-01), Okano
patent: 4614973 (1986-09-01), Sorenson

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