Pulse or digital communications – Spread spectrum – Direct sequence
Patent
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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Schwendeman Robert J.
Siwiak Kazimierz
Breeden R. Louis
Chin Stephen
Motorola Inc.
Tse Young
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