Jay L Prunty

7451549, Nov 18, 2008

Aug 9, 2006

11/502593

Raj Sodhi - Santa Rosa CA, US
Jay Prunty - Santa Rosa CA, US
George Hsu - Santa Rosa CA, US
Becky Oh - Santa Rosa CA, US

PNI Corporation - Santa Rosa CA

G01C 17/38

33356, 701224, 702 92

A magnetic compass apparatus and method to account for magnetic distortion while determining a magnetic heading is disclosed. The method enables a compass module, comprising at least two magnetometers, to characterize its magnetic environment dynamically, while collecting data of a geomagnetic field; a user moves an apparatus through various orientations; the environment may or may not contain magnetic distortion influences. Data gathered by magnetometers and, optionally, accelerometers are processed through at least two filters before being transferred as a processed data set for repetitive measurement calculations. A series of calculations is executed recursively in time by solving one or more linear vector equations using processed data.

20140256306, Sep 11, 2014

May 23, 2014

14/286115

- Cupertino CA, US
Jay N. Bruins - Los Altos CA, US
Robert Mayor - Half Moon Bay CA, US
Ronald K. Huang - San Jose CA, US
Stephen J. Rhee - San Jose CA, US
Jay L. Prunty - Pleasanton CA, US
Pejman Lotfali Kazemi - San Francisco CA, US

Apple Inc. - Cupertino CA

H04W 8/22
H04W 4/02

455418

Among other things, we describe a method that includes receiving, on a mobile device, an indication that an application executing on the mobile device has entered a background state, receiving, from the application, a value indicating a condition for providing location data to the application, disabling a resource associated with the application, while the resource associated with the application is disabled, storing location data received from a location system of the mobile device, and when the condition indicated by the value is met, enabling the resource associated with the application, and providing the stored location data to the application.