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. 09, 2002
Filed:
Dec. 03, 1999
Samir Abou-Samra, Vancouver, CA;
Claude Comair, Vancouver, CA;
Robert Champagne, Redmond, WA (US);
Sun Tjen Fam, Vancouver, CA;
Prasanna Ghali, Vancouver, CA;
Stephen Lee, Redmond, WA (US);
Jun Pan, Bellevue, WA (US);
Xin Li, Issaquah, WA (US);
Nintendo Co., Ltd., Kyoto, JP;
Abstract
Loss-less data compression/decompression especially useful in a limited resource environment such as a handheld portable video game system allows graphics and/or attribute data to be efficiently and quickly decompressed on an as-needed basis in real time response to interactive user inputs. A two-level run-length-encoding is used to encode redundant patterns and redundant symbols. A common sentinel field format encodes whether data following the field is non-redundant data, a symbol run, or a pattern run. Compression ratios of 60% for representative symbol-mapped video display graphics/attribute files can be achieved.