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:
Jul. 15, 2008
Filed:
Apr. 18, 2006
Hun Kwang Lee, Sg. Rambal, MY;
Sai Mun Lee, Sungal Nibong, MY;
A/l Gopal Krishnan Thineshwaran, Jin Sultan Azian Shah, MY;
Hun Kwang Lee, Sg. Rambal, MY;
Sai Mun Lee, Sungal Nibong, MY;
A/L Gopal Krishnan Thineshwaran, Jin Sultan Azian Shah, MY;
Avago Technologies General IP Pte Ltd, Singapore, SG;
Abstract
An apparatus having a coherent light source, an optical sensor, and a controller that can be utilized in optical mice and the like is disclosed. The coherent light source emits coherent light in a cone of angles about an illumination direction. The optical sensor includes an array of photodetectors disposed on a die having a surface substantially perpendicular to the illumination direction. The controller compares first and second images recorded by the optical sensor at different times and determines a displacement indicative of the direction and distance the apparatus has moved between the two different times. A portion of the coherent light source is bonded to the die at a location within the array of photodetectors.