Automatic disabling of AFC/AFT controller during receiver circui

Details Automatic disabling of AFC/AFT controller during receiver circui Automatic disabling of AFC/AFT controller during receiver circui

1984-03-02

1985-03-12

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455208, 455263, H04B 126

Patent

active

045049734

ABSTRACT:
An electromagnetic wave receiver system with an AFC/AFT controller and an adjustable tuner has the improvement whereby the AFC/AFT controller is automatically disabled when the tuner is being adjusted. The automatic disabling is implemented by a sensor which senses when the tuning means is being adjusted and which generates an electric signal when such adjusting is sensed. The electric signal is then applied to an OFF terminal of the AFC-AFT controller to thereby disable the controller when the receiver is being tuned.

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patent: 3968441 (1976-07-01), Garskamp
patent: 4234961 (1980-11-01), Garskamp

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