Charge transfer device radio system

Details Charge transfer device radio system Charge transfer device radio system

1977-04-27

1979-05-08

Griffin, Robert L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

325 25, 325430, 333165, H04B 140

Patent

active

041538765

ABSTRACT:
Disclosed is a radio system comprising mixing means for simultaneously receiving electronic input signals consisting of a plurality of non-overlapping frequency bands and first clocking signals having a first selectable frequence. The mixing means frequency shifts the input signals by the first selectable frequency. A charge transfer device transversal filter has inputs coupled to receive the frequency shifted signals. The charge transfer device filters one frequency band from the frequency shifted signals and further frequency shifts the selected band in response to a second clocking signal. Demodulator means is coupled to the output of the charge transfer device filter for demodulating the selected one further downshifted frequency band.

REFERENCES:
patent: 3809923 (1974-05-01), Esser
patent: 3835384 (1974-09-01), Liff
patent: 3953745 (1976-04-01), Bailey
patent: 3978416 (1976-08-01), Sutphin
patent: 4025855 (1977-05-01), Atkinson

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