Optical device for the recovery of the timing of a coded signal
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United States of America Patent
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Jul 18, 1995
Grant Date -
N/A
app pub date -
Mar 21, 1994
filing date -
Mar 29, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical device for recovering the timing of a signal (Si) coded by a digital code, such as the NRZ, CMI, biphase or similar code, is provided. The device has a circuit for shaping and transforming the coded signal into the form of a series of pulses of duration equal to T/2 and occurrence equal to N.times.T, and a timing recovery circuit for determining the timing signal. The present invention has particular utility in the area of digital transmission by optical fibers, although other utilities are also contemplated.
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