In-wire selective active cancellation system

Details In-wire selective active cancellation system In-wire selective active cancellation system

1989-10-16

1992-06-30

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328167, 307521, 307529, 381 71, 381 94, G06F 1531, H04R 2700

Patent

active

051266814

ABSTRACT:
An in wire active cancelling system cancels undesirable repetitive signal components from a primary electronics signal controlling desired intelligent signal components and undesirable repetitive signal components. The primary electronic signal is fed as an input to an electronic mixer. A second input to the electronic mixer is a repetitive cancelling signal which is applied by the mixer to cancel the undesirable repetitive signal component from the primary signal without interfering with passage of the primary signal intelligent signal components. The repetitive cancellation signal is developed from a residual signal developed by the mixer and a timing signal obtained from a timing signal generator.

REFERENCES:
patent: 4589137 (1986-05-01), Miller
patent: 4658426 (1987-04-01), Chabries et al.
patent: 4672674 (1987-06-01), Clough et al.

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