Demodulated data recognition and decision device

Details Demodulated data recognition and decision device Demodulated data recognition and decision device

1990-01-10

1992-04-14

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

375 94, H04L 702

Patent

active

051054477

ABSTRACT:
A demodulated data recognition and decision device is disclosed in which an input signal such as an intermediate frequency signal or the like is demodulated and digital data corresponding to a demodulated base band signal is recovered. This device is characterized in that a sample clock rate having n-times the bit rate of the digital data is applied to perform a sampling operation wherein a decision of the binary value at the plurality of points in the base band signal is carried out to obtain a decision under majority rule. The value decided under majority rule and then applied as the demodulated digital data is substantially free of errors which might occur from jitters in the base band signal and other sources of noise.

REFERENCES:
patent: 4807260 (1989-02-01), Solina
patent: 4868853 (1989-09-01), Izumita et al.
patent: 4871973 (1989-10-01), Yoshihara

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