1977-04-27
1979-01-02
Richardson, Robert L.
325 63, H04B 140
Patent
active
041329503
ABSTRACT:
A clarifying radio receiver has a charge transfer device filter which is coupled to receive input signals consisting of a plurality of frequency bands lying respectively within a plurality of non-overlapping frequency channels. The filter simultaneously receives clocking signals, and has a plurality of spaced apart passbands which shift in frequency dependent upon the frequency of the clocking signals. Clocking means generate the clocking signals with an incrementally adjustable frequency. The increments are smaller than the width of the channels thereby permitting a selected one of the filter passbands to be precisely aligned about a fixed reference frequency.
REFERENCES:
patent: 3588701 (1971-06-01), Kahn
patent: 3641434 (1972-02-01), Yates
patent: 3835384 (1974-09-01), Liff
patent: 3983484 (1976-09-01), Hodama
patent: 3997973 (1976-12-01), Buss
patent: 4027242 (1977-05-01), Yamanaka
Caudel Edward R.
Cochran Michael J.
Comfort James T.
Grossman Rene
Masinick Michael A.
Richardson Robert L.
Sadacca Stephen S.
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