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:
Sep. 13, 2005
Filed:
Jun. 25, 2002
Aki Launiainen, Tampere, FI;
Aki Launiainen, Tampere, FI;
Nokia Corporation, Espoo, FI;
Abstract
A hardware context vector codec/generator which can be used in the block coder of a discrete wavelet transform (DWT) codec. The context vector codec/generator consists mostly of three columns of context vector registers where the context vectors move in parallel from column to column while the bits in the context vectors are modified by digital logic gates placed before each column. The digital logic gates are controlled by the results of the block coder scanning quantized wavelet coefficients. The preferred embodiment is used in a JPEG2000 codec.
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