Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-02-27
2007-02-27
Burd, Kevin (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C342S357490
Reexamination Certificate
active
09805535
ABSTRACT:
One embodiment of the present invention includes a control circuit, an increment register, and an accumulator. The control circuit generates a channel enable signal based on control information from a processor at a first clock signal having a first clock frequency. The channel enable signal selects a channel for a satellite in a global positioning system (GPS). The channel operates at a coarse/acquisition (C/A) clock signal having a second clock frequency. The increment register stores an increment value for the selected channel at the first clock signal. The accumulator generates a pseudo-random noise (PN) clock signal to a PN generator using the increment value.
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Mehrnia Alireza
Shakeri Kaveh
Blakely , Sokoloff, Taylor & Zafman LLP
Burd Kevin
PRI Research & Development Corp.
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