System and circuit architecture for echo cancellation and a tele

Details System and circuit architecture for echo cancellation and a tele System and circuit architecture for echo cancellation and a tele

1991-05-28

1994-01-11

Kuntz, Curtis

Pulse or digital communications

Spread spectrum

Direct sequence

375 34, 370 321, 379410, 358905, 358167, H04B 110

Patent

active

052788725

ABSTRACT:
A circuit architecture suitable for use in a television receiver which effectively performs a ghost or echo cancellation procedure on post echo components and pre echo components occurring within the transmission channel. The apparatus features a filter circuit architecture which can be configured under programmed control so as to partition groups of its filter sections to form IIR filters and FIR filters. The filter architecture is suitable for use in multi-circuit configurations and can be used with clustering algorithms to increase the efficiency and optimize the use of the available circuit architecture.

REFERENCES:
patent: 4582963 (1986-04-01), Danstrom
patent: 5034907 (1991-07-01), Johnson et al.
patent: 5089892 (1992-02-01), Kopuchi et al.
patent: 5099328 (1992-03-01), Kobo et al.
patent: 5111298 (1992-05-01), Koo
patent: 5121211 (1992-06-01), Koo
patent: 5161017 (1992-11-01), Sato

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