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. 15, 2020
Filed:
Nov. 08, 2019
Pixart Imaging Inc., Hsin-Chu County, TW;
Zi-Hao Tan, Penang, MY;
Kevin Len-Li Lim, Penang, MY;
PIXART IMAGING INC., Hsin-Chu County, TW;
Abstract
A navigation device including an image sensor, a processor and a memory is provided. The memory stores a lookup table of a plurality of frame rates each corresponding to one frame period extender. The image sensor captures a pair of image frames. The processor calculate a current displacement according to the pair of image frames, read a next frame period and a corresponding frame period extended value from the memory according to the calculated current displacement, and insert an inactive period after the pair of image frames when the frame period extended value is larger than 1 and the current displacement is larger than a displacement threshold.