Layered host based satellite positioning solutions

• US 20050234982A1
• Filed: 10/10/2002
• Published: 10/20/2005
• Est. Priority Date: 10/10/2002
• Status: Active Grant

• Current Assignee: CSR Technology Incorporated (Qualcomm, Inc.)
• Original Assignee: CSR Technology Incorporated (Qualcomm, Inc.)
• Inventors: Yamamoto, Clifford, Nonis, Sebastian, Bulatovic, Nikola, Pande, Ashutosh, Witanis, Stefan
• Granted Patent: US 7,813,875 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01S 19/09 providing processing capability normally carried out by the receiver
• CPC Class Codes: G01S 19/37 Hardware or software details of the signal processing chain
• CPC Class Codes: G01S 5/0036 of measured values, i.e. measurement on mobile and position calculation on base station

Abstract

Methods and systems consistent with the present invention provide a host based positioning system. The host based positioning system includes a tracker hardware interface that connects to a dedicated hardware space vehicle tracker. The tracker hardware interface receives positioning information from the space vehicle tracker. The host based positioning system includes a layered approach to enable user applications on a host computer to access data from tracker hardware.

Claims

1. A system for processing positioning signals, the system comprising:

a tracker having a GPS receiver enabled to receive GPS signals; and

a data forwarder configured by a user interface manager in response to a communication interface receiving a request for location data from one user application from a plurality of user applications, where the user interface manager transmits location data received by the tracker to the data forwarder for transmission to the user application.

2. The system of claim 1, further comprising:

a host navigation processor in receipts of unformatted location data from the tracker via a tracker interface module and communicates the unformatted location data to the user interface manager.

3. The system of claim 1, wherein the user interface manager further comprises:

a location data format selected from a plurality of location data formats by the user interface manager in response to a request from the communication interface that results in the raw location data being formatted in accordance with the location data format.

4. The system of claim 3, wherein the location data is binary location data.

5. The system of claim 1, wherein the data converter further comprises:

a location data format selected from a plurality of location data formats in response to receipt of an indication of format from the user interface manager.

6. A method for processing positioning signals, the method comprising:

receiving at a communication interface a request from a user application for formatted location data;

notifying a host navigation processor module and of the request for formatted location data sent by the communication interface;

receiving location data at the host navigation processor module from an tracker interface module;

formatting the location data into formatted location data at the user interface manager in response to the communication interface receiving the request from the user application; and

sending the formatted to a data forwarder for transmission to the user application.

8. The method of claim 6, wherein formatting further includes:

selecting a binary format from the plurality of formats.

9. The method of claim 6, further comprising;

decoding a plurality of GPS signals at a tracker;

deriving location data from the plurality of GPS signals sending the location data to the tracker interface.

7. The method of clam 6, wherein formatting further includes:

selecting a format from a plurality of formats for the location data.

10. A system for processing positioning signals, comprising:

means for receiving at a communication interface a request from a user application for formatted location data;

means for notifying a host navigation processor module and of the request for formatted location data sent by the communication interface;

means for receiving location data at the host navigation processor module from an tracker interface module;

means for formatting the location data into formatted location data at the user interface manager in response to the communication interface receiving the request from the user application; and

means for sending the formatted to a data forwarder for transmission to the user application.

11. The system of claim 10, wherein formatting further includes:

means for selecting a format from a plurality of formats for the location data.

12. The system of claim 10, wherein formatting further includes:

means for selecting a binary format from the plurality of formats.

13. The system of claim 10, further comprising;

means for decoding a plurality of GPS signals at a tracker;

means for deriving location data from the plurality of GPS signals means for sending the location data to the tracker interface.

14. A signal bearing media comprising machine-readable instructions for a system that processes positioning signals, comprising:

a first plurality of machine-readable instructions for receiving at a communication interface a request from a user application for formatted location data;

a second set of machine-readable instruction for notifying a host navigation processor module and of the request for formatted location data sent by the communication interface;

a third set of machine-readable instructions for receiving location data at the host navigation processor module form an tracker interface module;

a fourth set of machine-readable instructions for formatting the location data into formatted location data at the user interface manager in response to the communication interface receiving the request from the user application; and

a fifth set of machine readable-instructions for sending the formatted to a data forwarder for transmission to the user application.

15. The system of claim 14, wherein formatting further includes:

a sixth set of machine-readable instructions for selecting a format from a plurality of formats for the location data.

16. The system of claim 14, wherein formatting further includes:

a sixth set of machine-readable instructions for selecting a binary format from the plurality of formats.

17. The system of claim 14, further comprising:

a sixth set of machine-readable instructions for decoding a plurality of GPS signals at a tracker;

a seventh set of machine-readable instructions for deriving location data from the plurality of GPS signals; and

an eighth set of machine-readable instructions for sending the location data to the tracker interface.