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:
Jun. 02, 2009
Filed:
Apr. 22, 2005
Jian Wang, Beijing, CN;
Zhouchen Lin, Beijing, CN;
Yue LI, Beijing, CN;
Chunhui Zhang, Beijing, CN;
Yingnong Dang, Beijing, CN;
Jiang Wu, San Jose, CA (US);
Qiang Wang, Beijing, CN;
Jian Wang, Beijing, CN;
Zhouchen Lin, Beijing, CN;
Yue Li, Beijing, CN;
Chunhui Zhang, Beijing, CN;
Yingnong Dang, Beijing, CN;
Jiang Wu, San Jose, CA (US);
Qiang Wang, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
In accordance with embodiments of the invention, local metadata is embedded into an embedded interactive code document by combining a first m-array and a second m-array to generate a combined m-array with encoded local metadata such that a start position of the second m-array in the combined m-array is shifted, by an amount that is based on the local metadata, relative to a start position of the first m-array in the combined m-array. The first m-array and the second m-array may contain the same repeating bit sequence. Local metadata may be decoded from the embedded interactive code document by decoding the local metadata from the combined m-array by determining the amount by which the second m-array is shifted, relative to the first m-array, in the combined m-array.