Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1989-05-30
1990-05-01
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
328 14, 331 1A, H04J 108
Patent
active
049225480
ABSTRACT:
In the present invention a switchable synthesizer is disclosed wherein a single loop is used to lock any one of a plurality of control signals by multiplexing the frequencies into and control signals out of the specific frequencies loop to control the frequency generators.
REFERENCES:
patent: 4296380 (1981-10-01), Minakuchi
patent: 4296407 (1981-10-01), Minakuchi
patent: 4330758 (1982-05-01), Swisher et al.
patent: 4809069 (1989-02-01), Meyer et al.
Eisenzopf Reinhard J.
Plessey Overseas Limited
Urban Edward
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