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:
Mar. 09, 2010
Filed:
Aug. 21, 2007
Chee Foo Lum, Penang, MY;
Weng Fei Wong, Penang, MY;
Siang Leong Foo, Penang, MY;
Timothy James Orsley, San Jose, CA (US);
Chee Foo Lum, Penang, MY;
Weng Fei Wong, Penang, MY;
Siang Leong Foo, Penang, MY;
Timothy James Orsley, San Jose, CA (US);
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A user navigational apparatus. The user navigational apparatus includes a dial, a coding element, and an encoder. The coding element is coupled to a dial. The coding element includes a track of alternating reflective and non-reflective sections, each having a substantially oblique leading edge relative to a direction of movement of the coding element. The encoder includes an emitter and a detector. The emitter generates a light signal incident on the track of the coding element. The detector detects a reflected light signal which corresponds to a portion of the incident light signal that is reflected off of the reflective sections of the track. The detector also generates a channel signal corresponding to the reflected light signal.