Method and apparatus for processing satellite positioning system signals to obtain time information
First Claim
Patent Images
1. A method of processing satellite positioning system data at a mobile receiver, comprising:
- estimating, at said mobile receiver, first bit-transitions within satellite navigation data transmitted by at least one satellite;
generating a bit pattern including a known preamble and an extended preamble, said extended preamble comprising expected data bits within said satellite navigation data; and
comparing said first bit-transitions with second bit-transitions of said bit pattern to generate match data.
8 Assignments
0 Petitions
Accused Products
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.
42 Citations
21 Claims
-
1. A method of processing satellite positioning system data at a mobile receiver, comprising:
-
estimating, at said mobile receiver, first bit-transitions within satellite navigation data transmitted by at least one satellite;
generating a bit pattern including a known preamble and an extended preamble, said extended preamble comprising expected data bits within said satellite navigation data; and
comparing said first bit-transitions with second bit-transitions of said bit pattern to generate match data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A mobile receiver, comprising:
-
a satellite signal receiver for detecting satellite navigation data transmitted by at least one satellite; and
a processor for generating a bit pattern including a known preamble and an extended preamble and comparing first bit-transitions within said satellite navigation data with second bit-transitions of said bit pattern to generate match data, said extended preamble comprising expected data bits within said satellite navigation data. - View Dependent Claims (18, 19, 20)
-
-
21. Apparatus for processing satellite positioning system data at a mobile receiver, comprising:
-
means for estimating, at said mobile receiver, first bit-transitions within satellite navigation data transmitted by at least one satellite;
means for generating a bit pattern including a known preamble and an extended preamble, said extended preamble comprising expected data bits within said satellite navigation data; and
means for comparing said first bit-transitions with second bit-transitions of said bit pattern to generate match data.
-
Specification