Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2003-11-04
2009-12-29
Vo, Don N (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S350000
Reexamination Certificate
active
07639732
ABSTRACT:
A code-tracking system includes a loop filter, which receives an early/late error signal and outputs a loop filter error signal. An error scaling device receives the loop filter error representing an update and provides a code tracking adjustment signal. A controller monitors a frequency of updates and/or a number of same direction updates and provides a filter coefficient in accordance with the frequency of updates and/or the number of same direction updates.
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Kostic Zoran
Litwin Louis Robert
Hale Jeffrey D.
Levy Robert B.
Shedd Robert D.
Thomson Licensing
Vo Don N
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