H - Electricity – 04 – B
Patent
H - Electricity
04
B
379/64, 340/72
H04B 3/36 (2006.01) H04B 3/23 (2006.01)
Patent
CA 1252843
- 14 - BIDIRECTIONAL ADAPTIVE VOICE FREQUENCY REPEATER Abstract A large signal detector is employed to detect large amplitude signals incoming to a bidirectional repeater. An output from the detector is supplied to echo cancelers in the repeater and is used to inhibit updating of the echo canceler impulse response characteristic during intervals that such large incoming signals are present.
489172
Chance Christopher P.
Coble Ralph P. Jr.
Ingle Edwin C.
Jones Joye A.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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