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:
Feb. 24, 2004
Filed:
Nov. 02, 2001
Applicant:
Inventors:
Chi-Ting Shen, Taipei Hsien, TW;
Ming-Chieh Tsou, Taipei Hsien, TW;
Yu-Meng Chang, I Lan Hsien, TW;
Kuan-Hsun Huang, Yunlin Hsien, TW;
Li-Ju Lin, Nantou Hsien, TW;
Chung-Yu Wu, Hsinchu, TW;
Assignee:
Lite-On Semiconductor Corp., Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/08 ;
U.S. Cl.
CPC ...
G09G 5/08 ;
Abstract
An optical mouse chip with silicon retina structure comprises an image sensor array, an accumulator and a comparing/selecting unit. The image sensor array senses a direction parameter of an image along each axis. The accumulator sums the direction parameters of the image along different axes. The comparing/selecting unit selects a largest one from the sum of direction parameters of the image along different axes to determine a moving direction of the image.