The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2012
Filed:
Mar. 31, 2010
Andrew S. DE Silva, Torrance, CA (US);
Linh Doan, Torrance, CA (US);
Alex Panganiban, Torrance, CA (US);
Andrew S. de Silva, Torrance, CA (US);
Linh Doan, Torrance, CA (US);
Alex Panganiban, Torrance, CA (US);
Alpine Electronics, Inc, Tokyo, JP;
Abstract
A method and apparatus to optimize energy consumption in a mobile phone having a navigation system is disclosed. The navigation-based method and apparatus efficiently use a smartphone battery to provide the highest possible location accuracy to the driver. When the driver is travelling from a complex route segment to a less complex route segment, current location sensor is switched to another location sensor with lower location accuracy which consumes less battery power. When the driver is travelling from a less complex route segment to a complex route segment, the navigation system continues to use a location sensor with lower accuracy until the navigation system determines that switching to higher accuracy location sensor is necessary to conserve more battery power. The navigation system can determine a best timing to switch according to the driver's familiarity with the route segment or geographical area.