Programmable differentiator delay

Details Programmable differentiator delay Programmable differentiator delay

1991-07-03

1993-07-20

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328167, 307495, H03B 100, H03K 500, H04B 110

Patent

active

052296644

ABSTRACT:
A programmable delay for the gate signal output of the differentiator in a data analyzing circuit is provided. A data signal is produced by a low pass filter, and a differentiator (high pass filter) produces a gate signal. The cutoff frequency of the low pass filter is controlled by a first control circuit, and a second control circuit is provided to separately control the cutoff frequency of the high pass filter. The second control circuit produces a variation from the base frequency determined by the first control circuit. Thus, the cutoff frequency of the high pass filter will always be proportional to that of the low pass filter.

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patent: 4438406 (1984-03-01), McCormick et al.
patent: 4841461 (1989-06-01), Yamamoto et al.
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