Charge transfer device transversal filter having electronically

Details Charge transfer device transversal filter having electronically Charge transfer device transversal filter having electronically

1977-06-30

1979-04-10

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Frequency or time domain filters and delay lines utilizing...

307221D, 357 24, H03H 728, H01L 2710, H01L 2978, G11C 1928

Patent

active

041491289

ABSTRACT:
A charge transfer device transversal filter is provided having electronically controllable weighting factors. Two equivalent and corresponding charge transfer device shift registers have floating electrodes sandwiched between the sensing electrodes and the substrate for biasing the underlying depletion regions and thereby controlling the effective capacitances thereof. Depletion capacitances are controlled so as to produce desired weighting factors when corresponding and otherwise equal charging currents are substrated one from the other.

REFERENCES:
patent: 3819958 (1974-06-01), Gosney
patent: 4032867 (1977-06-01), Engeler et al.

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