Stability detection method and apparatus for a tuning system

Details Stability detection method and apparatus for a tuning system Stability detection method and apparatus for a tuning system

1990-03-09

1994-04-12

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551823, 4551923, 4551971, 455265, H04B 116

Patent

active

053033981

ABSTRACT:
An indication of stability of a tuning system after changing, the local oscillator frequency to a predetermined frequency, such as a frequency corresponding to a new channel during a channel changing operation or to a new search frequency during a search, is provided by monitoring an AFT signal during the frequency changing operation and determining when it remains consistent for a predetermined time.

REFERENCES:
patent: 4218657 (1980-08-01), Rast
patent: 4429415 (1984-01-01), Chin et al.
patent: 4868892 (1989-09-01), Tults et al.
patent: 4995098 (1991-02-01), Tanasalem et al.
patent: 5065244 (1991-11-01), Ismiguro et al.

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