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1. (WO2007004017) SYSTEM AND METHOD FOR PROVIDING OPTIMIZED RECEIVER ARCHITECTURES FOR COMBINED PILOT AND DATA SIGNAL TRACKING
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WHAT IS CLAIMED IS:

L A method of using a receiver to process multiple signals on a common carrier frequency, comprising:
having the receiver receive input data transmitted from a remote source;
tracking a first signal from the input data using a correlation channel; and
decoding a second signal from the input data using a code wipe-off mechanism operatively connected to the first correlation channel.

2. The method of claim 1, wherein the code wipe-off mechanism includes a generator which generates replica code for the second signal to a correlator, and wherein the correlator despreads the second signal.

3. The method of claim 2, wherein the generator is positioned within the correlation channel.

4. The method of claim 1 , wherein the second signal is used in the computation of location information for the receiver.

5. The method of claim 1, wherein the second signal is used to provide communication information to a user of the receiver.

6. The method of claim 1 , wherein the first signal comprises a pilot signal and the second signal comprises a data signal.

7. A method of using a receiver to process multiple signals on a common carrier frequency from a satellite, comprising the steps of:
having the receiver receive input data transmitted from the satellite;
if the signal-to-noise ratio of the input data does not meet or exceed a predetermined threshold, using a first code generator to track the input data using a first signal in the input data; and 3

7 if the signal-to-noise ratio of the input data meets or exceeds the

8 predetermined threshold, using a second code generator to track the input data using a

9 second signal in the input data,
I o wherein the receiver is capable of switching between the first code

I 1 generator and the second code generator based upon the signal-to-noise ratio of the 12 input data.

1 8. The method of claim 7, further comprising the step of, if the receiver

2 has already downloaded message data included within the input data, using the first

3 code generator to track the input data.

1 9. A computer program product for using a receiver to process multiple

2 signals on a common carrier frequency from a satellite, comprising:
3 computer code for having the receiver receive input data transmitted

4 from a remote source;
5 computer code for tracking a first signal from the input data using a

6 correlation channel; and
7 computer code for decoding a second signal from the input data using a

8 code wipe-off mechanism operatively connected to the first correlation channel.

1 10. The computer program product of claim 9, wherein the code wipe-off

2 mechanism includes a generator which generates replica code for the second signal to

3 a correlator, and wherein the correlator despreads the second signal.

1 11. The computer program product of claim 10, wherein the generator is

2 positioned within the correlation channel.

1 12. The computer program product of claim 9, wherein the second signal is

2 used in the computation of location information for the receiver.

1 13. The computer program product of claim 9, wherein the second signal is

2 used to provide communication information to a user of the receiver.

14. The computer program product of claim 9, wherein the first signal comprises a pilot signal and the second signal comprises a data signal.

15. A computer program product for using a receiver to process multiple signals on a common carrier frequency from a satellite, comprising the steps of:
computer code for having the receiver receive input data transmitted from the satellite;
computer code for, if the signal-to-noise ratio of the input data does not meet or exceed a predetermined threshold, using a first code generator to track the input data using a first signal in the input data; and
computer code for, if the signal-to-noise ratio of the input data meets or exceeds the predetermined threshold, using a second code generator to track the input data using a second signal in the input data,
wherein the receiver is capable of switching between the first code generator and the second code generator based upon the signal-to-noise ratio of the input data.

16. The computer program product of claim 15, further comprising computer code for, if the receiver has already downloaded message data included within the input data, using the first code generator to track the input data.

17. A receiver to process multiple signals on a common carrier frequency from a satellite, comprising:
a first code generator positioned within a correlation channel, the first code generator configured to track a first signal from input data; and
a second code generator operatively connected to the first code generator, the second code generator configured to track a second signal from the input data,
wherein if the signal-to-noise ratio of the input data does not meet or exceed a predetermined threshold, the first code generator tracks the input data using the first signal in the input data, and wherein if the signal-to-noise ratio of the input data meets or exceeds the predetermined threshold, the second code generator tracks the input data using the second signal in the input data.

18. The receiver of claim 17, wherein the receiver is capable of switching between the first code generator and the second code generator based upon the signal-to-noise ratio of the input data..

19. The receiver of claim 17, wherein the second signal is used in the computation of location information for the receiver.

20. The receiver of claim 17, wherein the second signal is used to provide communication information to a user of the receiver.

21. The receiver of claim 17, wherein the second code generator transmits replica code for the second signal to a correlator, and wherein the correlator despreads the second signal.

22. A mobile telephone including a GNSS receiver, comprising:
a processor;
a memory unit operatively connected to the processor;
a first code generator positioned within a correlation channel, the first code generator configured to track a first signal from input data; and
a second code generator operatively connected to the first code generator, the second code generator configured to track a second signal from the input data,
wherein if the signal-to-noise ratio of the input data does not meet or exceed a predetermined threshold, the first code generator tracks the input data using the first signal in the input data, and wherein, if the signal-to-noise ratio of the input data meets or exceeds the predetermined threshold, the second code generator tracks the input data using the second signal in the input data.

23. The mobile telephone of claim 22, wherein the receiver is capable of switching between the first code generator and the second code generator based upon the signal-to-noise ratio of the input data.