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:
Jan. 23, 2007
Filed:
Nov. 11, 2003
Jung-hong Ahn, Yongin, KR;
Jung-Hong Ahn, Yongin, KR;
Atlab Inc., , KR;
Abstract
Disclosed is a method for calculating a movement value of an optical mouse and an optical mouse using it. The method comprises the steps of: adjusting a reference frame update speed based on a movement speed of the optical mouse and updating the reference frame, calculating a first movement value, wherein the step of calculating the first movement value sets a reference area in the updated reference frame, and finds a correlation between a current input frame and the reference area of the reference frame to calculate the movement value, and resetting a reference area, wherein the step of resetting a reference area sets a new reference frame to which the reference area of the reference frame is moved by considering the calculated movement value according to the adjusted reference frame update speed. With the optical mouse according to the present invention, when calculating the movement value of the optical mouse the reference area is reset based on the movement of the optical mouse, thereby sensing the movement of small angles by increasing region of movement value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile