Circuit arrangement with adjustable amplitude-frequency response

Details Circuit arrangement with adjustable amplitude-frequency response Circuit arrangement with adjustable amplitude-frequency response

1995-04-11

1997-03-04

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327552, 327558, 327559, 327113, 327178, H03K 500, H03B 100

Patent

active

056083491

ABSTRACT:
A circuit arrangement with an adjustable amplitude-frequency response between an input signal terminal and an output signal terminal can be changed over simply between a fourth-order high-pass or low-pass characteristic and a second-order all-pass characteristic. The circuit includes first and third filters each with a filter function F, a second filter with a filter function G, a plurality of coefficient sections and first and second summing stages all coupled together so that the circuit has a transfer function A between the input signal terminal and the output signal terminal with a component complying with

REFERENCES:
patent: 4480236 (1984-10-01), Harris
patent: 4967161 (1990-10-01), Furuhata et al.
patent: 5050186 (1991-09-01), Gurcan et al.

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