Method and apparatus for processing satellite positioning...

Details Method and apparatus for processing satellite positioning... Method and apparatus for processing satellite positioning...

2004-02-06

2008-11-04

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C342S357490

Reexamination Certificate

active

07447253

ABSTRACT:
A method and apparatus for processing satellite positioning system signals at a mobile receiver is described. In one example, first bit-transitions within satellite navigation data transmitted by at least one satellite are estimated at the mobile receiver. A bit pattern is generated that includes a known preamble and an extended preamble. The extended preamble includes expected data bits within the satellite navigation data. The first bit-transitions are compared with second bit-transitions of the bit pattern to generate match data.

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International Search Report dated Aug. 22, 2005.
International Preliminary Report on Patentability mailed Aug. 17, 2006 for PCT Application No. PCT/US2005/003724.

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