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:
Jun. 11, 2013
Filed:
Oct. 29, 2008
Hsin Chia Chen, Science-Based Industrial Park Hsin-Chu, TW;
Ching Lin Chung, Science-Based Industrial Park Hsin-Chu, TW;
Yao Ching Hsu, Science-Based Industrial Park Hsin-Chu, TW;
Cho Yi Lin, Science-Based Industrial Park Hsin-Chu, TW;
Tzu Yi Chao, Science-Based Industrial Park Hsin-Chu, TW;
Hsin Chia Chen, Science-Based Industrial Park Hsin-Chu, TW;
Ching Lin Chung, Science-Based Industrial Park Hsin-Chu, TW;
Yao Ching Hsu, Science-Based Industrial Park Hsin-Chu, TW;
Cho Yi Lin, Science-Based Industrial Park Hsin-Chu, TW;
Tzu Yi Chao, Science-Based Industrial Park Hsin-Chu, TW;
Pixart Imaging Inc., , TW;
Abstract
A power saving method for a motion estimation device which has a fixed sampling period and includes a light source illuminating with an adjustable emitting cycle to provide the needed light for the motion estimation device during capturing images. The power saving method includes: capturing a first image at a first time; capturing a second image at a second time, wherein a time interval between the first time and the second time is identical to one emitting cycle which is an integral multiple of the sampling period; comparing the first image and the second image to obtain a displacement; comparing the displacement with at least one threshold value; and adjusting the emitting cycle of the light source according to a comparison result of comparing the displacement and the threshold value. The present invention further provides a motion estimation device.