Data bit synchronization

Details Data bit synchronization Data bit synchronization

1990-10-09

1994-01-18

Kuntz, Curtis

Pulse or digital communications

Repeaters

Testing

375119, H04L 2706

Patent

active

052805018

ABSTRACT:
Bit synchronization is achieved by identifying potential bit sample points and assigning corresponding weight values as a function of signal noise vulnerability. The greater the possibility of error due to signal noise, the smaller the assigned weight value. The bit sample points associated with the largest accumulated weight value are taken as the appropriate data sample points for extracting information from the data signal. For a duobinary signal, zero crossings are identified as potential bit sample points and assigned a weight value corresponding to signal slope thereat. The number of possible bit sample points associated with each actual bit sample point is limited to a finite set by phase locking the carrier signal to the data rate.

REFERENCES:
patent: 3409831 (1968-11-01), Walker
patent: 4370748 (1983-01-01), Janc et al.
patent: 4403333 (1983-09-01), Gupta

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