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:
Apr. 01, 2010
Chi-chung Lo, Zhuqi Township, Chiayi County, TW;
Sheng-po Kuo, Taipei, TW;
Jui-hao Chu, Luodong Township, Yilan County, TW;
Yu-chee Tseng, Hsinchu, TW;
Lun-chia Kuo, Taichung, TW;
Chao-yu Chen, Kaohsiung, TW;
Chi-Chung Lo, Zhuqi Township, Chiayi County, TW;
Sheng-Po Kuo, Taipei, TW;
Jui-Hao Chu, Luodong Township, Yilan County, TW;
Yu-Chee Tseng, Hsinchu, TW;
Lun-Chia Kuo, Taichung, TW;
Chao-Yu Chen, Kaohsiung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method for positioning a mobile device includes following steps. Based on a prior location point of the mobile device, many sample points are generated according to a prior probability distribution associated with the prior location point. A current moving track or a current moving status of the mobile device is obtained, and the sample points are updated according to at least one of the current moving track and the current moving status. A current estimated position is obtained based on a radio frequency signal received by the mobile device. A current probability distribution of the sample points corresponding to the radio frequency signal or the current estimated position is generated to obtain corresponding weights of the updated sample points. A current location point of the mobile device is obtained according to the weights and distribution of the sample points.