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:
Apr. 29, 2014
Filed:
Feb. 16, 2009
Applicants:
Shou-te Wei, Hsin-Chu, TW;
Chia-lin Wang, Hsin-Chu, TW;
Inventors:
Shou-Te Wei, Hsin-Chu, TW;
Chia-Lin Wang, Hsin-Chu, TW;
Assignee:
PixArt Imaging Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a data region of each microdot block on a microdot matrix, a coordinate of each the microdot block on the microdot matrix is encoded into a plurality of microdots included by the data region according to an encoding method based on Reflected Gray codes. With the aid of a unique changed bit between any two consecutive Reflected Gray codes, an estimated coordinate of a frame, which is fetched by scanning the microdot matrix, on the microdot matrix, may still be decoded even if no complete microdot block is fetched within the frame.