GPS PROCESSING ARRANGEMENT
First Claim
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1. A software GPS processing arrangement comprising a FIFO buffer for receiving a stream of the GPS signal samples;
- a memory;
a DMA controller for transferring the GPS signal samples from the FIFO buffer to the memory; and
a CPU running GPS signal processing software configured to retrieve the GPS signal samples from the memory and process them to obtain a position fix, characterized by a counter operating independently of the DMA controller and the CPU for keeping count of the number of streamed GPS signal samples.
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Abstract
A software GPS processing arrangement comprising a FIFO buffer for receiving a stream of the GPS signal samples, a memory, a DMA controller for transferring the GPS signal samples from the FIFO buffer to the memory, a CPU running GPS signal processing software configured to retrieve the GPS signal samples from the memory and process them to obtain a position fix, and a counter operating independently of the DMA controller and the CPU for keeping count of the number of streamed GPS signal samples.
36 Citations
3 Claims
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1. A software GPS processing arrangement comprising a FIFO buffer for receiving a stream of the GPS signal samples;
- a memory;
a DMA controller for transferring the GPS signal samples from the FIFO buffer to the memory; and
a CPU running GPS signal processing software configured to retrieve the GPS signal samples from the memory and process them to obtain a position fix, characterized by a counter operating independently of the DMA controller and the CPU for keeping count of the number of streamed GPS signal samples. - View Dependent Claims (2)
- a memory;
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3. A GPS receiver front end comprising a GPS antenna and a GPS RF front-end including an analogue to digital converter for sampling received GPS signals and a processing arrangement for outputting a stream of the GPS signal samples, characterized by the processor arrangement further outputting a count signal in which each individual count indicates the streaming of two or more GPS signal samples.
Specification
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Current AssigneeNXP B.V. (NXP Semiconductors NV)
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Original AssigneeNXP B.V. (NXP Semiconductors NV)
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InventorsTickell, Stephen A., Penna, David E.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current342/357.630
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CPC Class CodesG01S 19/24 Acquisition or tracking or ...G01S 19/34 Power consumptionG01S 19/37 Hardware or software detail...
