Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-05-10
2011-05-10
Phu, Phuong (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S150000, C375S145000, C375S142000, C375S147000, C708S422000
Reexamination Certificate
active
07940834
ABSTRACT:
A GNSS receiver and method using alternating “A” and “B” time segments for a reception time length of two or more data bits. The GNSS signal in an “A” time period comprising the “A” time segments is integrated for determining “A” magnitudes corresponding to code phase increments and the GNSS signal in a “B” time period comprising the “B” time segments is integrated for determining “B” magnitudes corresponding to code phase increments. A trial-and-error data bit search is performed for depolarizing data bit senses. The code phase increment showing the largest correlation level is used for acquisition of the GNSS signal and/or determination of the location where the GNSS is being received.
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Gildea David R.
Loomis Peter Van Wyck
Gildea David R.
Phu Phuong
Trimble Navigation Limited
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