Circuit for controlling the response conditions of a radio recei

Details Circuit for controlling the response conditions of a radio recei Circuit for controlling the response conditions of a radio recei

1977-07-20

1979-09-11

Griffin, Robert L.

325402, 179 1P, H04B 116

Patent

active

041677056

ABSTRACT:
A plurality of circuits are provided for responding to various conditions in a radio receiver. Each of the circuits produces a first signal in response to the presence of its respective condition and produces a second signal in the absence of its respective condition. Each circuit removably engages a respective receptacle which is arranged to produce the first signal if its circuit is removed. A plurality of first logic gates have their inputs connected to the circuits in a predetermined arrangement. Each first gate produces a third signal in response to all of its inputs having first signals applied thereto, and produces a fourth signal in response to any one of its inputs having a second signal applied thereto. An output logic gate is connected to the first logic gates. The output gate produces an unsquelch signal in response to at least one third signal produced by a first gate, and produces a squelch signal in response to all of the first gates producing fourth signals. A first switch is provided to selectively cause the output gate to produce the unsquelch signal. A second switch is provided to change the conditions needed for the first logic gates to produce the third signals.

REFERENCES:
patent: 3252004 (1966-05-01), Scherr
patent: 3502900 (1970-03-01), Straub
patent: 4015206 (1977-03-01), Huntley
patent: 4041397 (1977-08-01), Bauer et al.

Affiliated with

Also associated with

Rating

Circuit for controlling the response conditions of a radio recei does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for controlling the response conditions of a radio recei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for controlling the response conditions of a radio recei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-479354