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:
May. 05, 2009
Filed:
Jun. 30, 2005
An Xu, Beijing, CN;
Chunhui Zhang, Beijing, CN;
Jian Wang, Beijing, CN;
Liyong Chen, Beijing, CN;
Qiang Wang, Beijing, CN;
Yingnong Dang, Beijing, CN;
An Xu, Beijing, CN;
Chunhui Zhang, Beijing, CN;
Jian Wang, Beijing, CN;
Liyong Chen, Beijing, CN;
Qiang Wang, Beijing, CN;
Yingnong Dang, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
A method and system for decoding data on a medium that is captured by an input device is described. The method decodes a symbol design, such as an embedded interaction code (EIC), on a display screen, such as a liquid crystal display (LCD). An image that is captured by an input device, such as a universal pen-type input device with a camera, is received. The captured image is processed to output an extracted bit stream. Position data and/or metadata information is decoded from the extracted bit stream and a position of the captured image with respect to a screen of the LCD is determined based upon the decoded position data. The EIC pattern may be recognized from LCD pixel grids and a bit stream of EIC bits may be extracted based upon the recognized EIC pattern.