Reception sensitivity control system in a sweeping receiver

Details Reception sensitivity control system in a sweeping receiver Reception sensitivity control system in a sweeping receiver

1987-08-19

1989-08-08

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455249, 455254, H04B 1116

Patent

active

048560820

ABSTRACT:
A reception sensitivity control system in a sweeping receiver in which a frequency dividing ratio of a phase lock loop is instantly changed from one end of the band to the other. The number of receivable stations is counted in the period of time required for the phase lock loop to adjust. If the number of stations is less than a preset minimum, the input sensitivity is increased. Thereafter, the channels are selected.

REFERENCES:
patent: 4355414 (1982-10-01), Inoue
patent: 4607215 (1986-08-01), Takano et al.
patent: 4619002 (1986-10-01), Thro
patent: 4727591 (1988-02-01), Manlove
Patent Abstracts of Japan, vol. 9, No. 31 (E-295) [1754] Feb. 9, 1985.
(English translation of an abstract of Japanese Kokai 59-174014).

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