Radio equipment based on AFC system with temperature detection a

Details Radio equipment based on AFC system with temperature detection a Radio equipment based on AFC system with temperature detection a

1994-09-15

1997-05-27

Urban, Edward F.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551922, 455259, H04B 116

Patent

active

056342055

ABSTRACT:
Radio equipment based on an AFC system comprising a local oscillator, a reference frequency oscillator, a receiver, a frequency comparator, an AFC controller, a temperature detection sensor, and a memory. The AFC controller inputting, when starting AFC, reads out a control frequency corresponding to the detected temperature inputted thereinto to control the reference frequency for the reference frequency oscillator. When a lock signal is inputted thereinto, the detected temperature and control frequency are stored in a memory.

REFERENCES:
patent: 4691377 (1987-09-01), Yoshihara et al.
patent: 4709406 (1987-11-01), Omoto
patent: 4893097 (1990-01-01), Zwack
patent: 4921467 (1990-05-01), Lax
patent: 5404587 (1995-04-01), Okanobu

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