Method and apparatus for processing satellite positioning system signals to obtain time information
AssigneeBroadcom Corporation
InventorsCharles Abraham, Emre Tapucu
Life of this patent
Estimating the term…
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.
Claims21
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.
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.
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.
Dependencies are inferred from the claim text.