Charge transfer delay line filters

Details Charge transfer delay line filters Charge transfer delay line filters

1975-07-31

1976-03-16

Larkins, William D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307208, 307295, 307304, 328167, 357 24, H03H 1100, H01L 2710, H01L 2978

Patent

active

039448509

ABSTRACT:
A charge transfer analog signal filter is described in which a plurality of charge storage cells are connected in series to form a delay line having a time delay T between its input and output cells. In a feed-forward rejection filter the analog signal is applied to the input cell through a cell of area A.sub.1 and to the output cell through another cell of area A.sub.2. The transfer function of the rejection filter is ##EQU1## In a feedback bandpass filter the analog signal is applied to the input cell through a cell of area A.sub.1, and the output cell is coupled to the input cell through the series combination of an analog inverter and another cell of area A.sub.2. The transfer function of the bandpass filter is ##EQU2##

REFERENCES:
patent: 3621402 (1971-11-01), Gardner
patent: 3740591 (1973-06-01), Butler et al.
patent: 3777186 (1973-12-01), Chang
patent: 3789267 (1974-01-01), Krambeck et al.
patent: 3811055 (1974-05-01), Weimer
patent: 3819959 (1974-06-01), Chang et al.
patent: 3824413 (1974-07-01), Awipi et al.
Sequin, "Blooming Suppression . . .," Bell Syst. Tech. Journal, Oct. 1972, pp. 1923-1926.
Mok et al., "Logic Array . . . ", Electronics Letters, Oct. 5, 1972, Vol. 8, No. 20, pp. 495-496.

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