Filter circuit utilizing charge transfer device

Details Filter circuit utilizing charge transfer device Filter circuit utilizing charge transfer device

1980-01-18

1981-12-29

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

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

307221D, 333166, 333173, H03H 1502, H03K 5135, H01L 2978, G11C 1928

Patent

active

043085091

ABSTRACT:
A non-recursive transversal filter circuit employs a charge transfer device in which certain of the capacitive storage elements are divided into first and second capacitive portions having predetermined capacitance relationships. The charge in the second capacitive storage elements is sensed at predetermined times to produce an output signal. The relative capacitances of the second capacitance portions provide weighting factors to the filter. Embodiments include bucket brigade devices with bipolar and FET transistors as well as charge coupled devices.

REFERENCES:
patent: 3953745 (1976-04-01), Bailey
patent: 4123733 (1978-10-01), Poirier
patent: 4195273 (1980-03-01), Prince
patent: 4232279 (1980-11-01), Prince

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