Telecommunications – Receiver or analog modulated signal frequency converter – Squelch
Patent
1991-11-04
1994-04-12
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Squelch
455220, H04B 116
Patent
active
053034074
ABSTRACT:
A squelch tail circuit (20) is provided capable of incorporation within integrated circuit structures. A digital timer (26 and 27) provides a time delay based upon a feed-back comparison providing a long time delay to weak signals and a short time delay to strong signals. A comparator (22) is provided to activate the time delay upon signal loss.
REFERENCES:
patent: 4430742 (1984-02-01), Milleker et al.
patent: 4510624 (1985-04-01), Thompson et al.
patent: 4724545 (1988-02-01), Hamada
Brake James D.
Juergensen Peter W.
Christensen Jon P.
Eisenzopf Reinhard J.
Motorola Inc.
Pham Chi
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