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:
Aug. 20, 2002
Filed:
Dec. 07, 1998
Mark E. Davis, Menlo Park, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for performing compositions and decompositions of Unicode combined character sequences utilizes a preprocessor to generate compositions and decompositions of Unicode character sequences and a mapping table generates a plurality of tables use to access the tables. A decomposition mapping table, created from a Unicode database and rules, maps precomposed Unicode characters to their respective decompositions. A composition mapping table, derived from the decomposition mapping table, includes canonical equivalent combined character sequences of the mapped decompositions. Additionally, a normalized mapping table, created from the composition mapping table, maps valid combined character sequences consisting of the same characters, wherein one of the sequences is defined as a normalized form. The mapping tables are accessed by a runtime processor when a system entity requests a decomposition or composition of Unicode characters to provide the appropriate decomposition or composition.