Noise reduction system for a single sideband multiplex signal

Details Noise reduction system for a single sideband multiplex signal Noise reduction system for a single sideband multiplex signal

1983-11-15

1985-11-19

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

455 47, 455 63, 455 71, 455203, 455245, 455246, 455263, 455311, H04B 110

Patent

active

045546797

ABSTRACT:
A transmitted signal includes a pilot signal at a given frequency and an information signal occupying a different band of frequencies. A noise reduction system for a signal receiver detects modulation on the pilot signal and generates a signal having a frequency that varies in response to the detected modulation. The system includes an apparatus for combining the received signal with the generated signal to produce a signal at another frequency with reduced frequency noise.

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patent: 4272846 (1981-06-01), Muratani et al.
patent: 4314377 (1982-02-01), Kondo et al.
patent: 4328590 (1982-05-01), Lee

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