Method and apparatus for dual-channel diversity reception of a r

Details Method and apparatus for dual-channel diversity reception of a r Method and apparatus for dual-channel diversity reception of a r

1992-12-09

1994-06-28

Chin, Stephen

Pulse or digital communications

Spread spectrum

Direct sequence

329308, 455134, H04B 708, H04L 106

Patent

active

053254031

ABSTRACT:
A data communication receiver (100) includes a first antenna feed (106) coupled to a first receiver element (110) for demodulating (502) a radio signal containing data bits and for deriving a first phase-locked loop error signal. The data communication receiver (100) also includes a second antenna feed (108) coupled to a second receiver element (112) for demodulating (502) the radio signal and for deriving a second phase-locked loop error signal. A received signal strength indicator (134, 144) measures signal strength of the radio signal from the first antenna feed (106) during reception of a data bit, and concurrently measures signal strength from the second antenna feed (108). A processor (146) then defines (506, 508, 512) the data bit as received from the antenna feed (106, 108) having the greater signal strength to be the optimum data bit.

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patent: 5023621 (1991-06-01), Ushiyama et al.
patent: 5097484 (1992-03-01), Akaiwa
patent: 5144296 (1992-09-01), DeLuca et al.

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