H - Electricity – 03 – H
Patent
H - Electricity
03
H
328/87, 328/0.5
H03H 17/00 (2006.01) H04L 7/02 (2006.01) H04L 25/03 (2006.01) H04L 7/04 (2006.01)
Patent
CA 1134459
ABSTRACT Portions of an adaptive equalizer can be used for exact preamble synchronization by modifying the digital filter section to recognize pre-determined sequences of signals in the received signal. This may be accomplished by applying to the modifying means of the digital filter input signals which are proportional to the complex conju- gate of the signals in the received signal. When the signals in the tapped delay line are aligned with this complex conjugate, the output of the summing means will be discernibly greater than otherwise. As a result, a thresh- old device can be used to recognize the exact baud time the preselected signals in the received signal are contained in the tapped delay line.
341931
General Datacomm Industries Inc.
Osler Hoskin & Harcourt Llp
LandOfFree
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