Method and apparatus for optimized post detection filtering for

Details Method and apparatus for optimized post detection filtering for Method and apparatus for optimized post detection filtering for

1998-01-05

2000-06-20

Bost, Dwayne D.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

455306, 375350, H04B 110

Patent

active

060788011

ABSTRACT:
A selective call receiver unit (100) having a post detection filtering system optimized for both simulcast delay spread and receiver sensitivity includes a receiver (20), a detector (30) for detecting a message and providing a detected signal, a first post detection filter (40) for filtering the detected signal and further being optimized for sensitivity providing a first filtered signal, and a second post detection filter (41) for filtering the detected signal and further being optimized for simulcast delay spread providing a second filtered signal. In addition, a combiner 45 is used for selectively combining the first filtered signal with the second filtered signal.

REFERENCES:
patent: 4177430 (1979-12-01), Paul
patent: 5208833 (1993-05-01), Erhart et al.
patent: 5418815 (1995-05-01), Ishikawa et al.
patent: 5659576 (1997-08-01), Critchlow et al.
patent: 5678218 (1997-10-01), Daikoku
patent: 5930296 (1999-07-01), Kot

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