Method and apparatus for detecting simulcast channel conditions

Details Method and apparatus for detecting simulcast channel conditions Method and apparatus for detecting simulcast channel conditions

1998-01-20

2000-04-25

Vo, Nguyen

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

455553, 455296, 455254, H04B 7005, H04B 1500

Patent

active

060554363

ABSTRACT:
A circuit (350) for detecting simulcast channel conditions includes a symbol center averaging circuit (308) for providing a center count of excursions above and below at least a first predetermined threshold and for providing a moving average of the center count over a predetermined number of symbol periods and a symbol edge averaging circuit (310) for providing an edge count of excursions above and below at least a second predetermined threshold and for providing a moving average of the edge count over a predetermined number of symbol periods. Finally, the circuit further includes a comparison circuit (360) programmed to receive and compare the moving average of the center count and the moving average of the edge count to provide a control signal (380) for simulcast detection.

REFERENCES:
patent: 5208833 (1993-05-01), Erhart et al.
patent: 5873044 (1999-02-01), Goldberg et al.
patent: 5930248 (1999-07-01), Langlet et al.

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