Frequency converter with automatic frequency control

Details Frequency converter with automatic frequency control Frequency converter with automatic frequency control

1983-07-01

1987-03-17

Miller, Stanley D.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

328 15, 455192, 455258, 331 1R, 307271, H03L 700, H04B 1116, H03B 100

Patent

active

046511040

ABSTRACT:
An automatic frequency control system for use in a frequency converter of a time division communication system, wherein the nonmodulated portion contained in the burst signal is selectively frequency discriminated. The frequency discriminated output is held for a certain period of time and then used as the oscillation frequency control signal of a local oscillating means.

REFERENCES:
patent: 3204185 (1965-08-01), Robinson
patent: 3573650 (1971-04-01), Maltese
patent: 3727149 (1973-04-01), Kimura
patent: 3936753 (1976-02-01), Clark
patent: 3940554 (1976-02-01), Masuda
patent: 4023114 (1977-05-01), Meixler
patent: 4031471 (1977-06-01), Noguchi
patent: 4158175 (1979-06-01), Toyomaki
patent: 4206425 (1980-06-01), Nossen
patent: 4234929 (1980-11-01), Riley, Jr.

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