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. 19, 2006
Filed:
Nov. 08, 2002
Hisao Sato, Matsumoto, JP;
Hisao Sato, Matsumoto, JP;
Seiko Epson Corporation, , JP;
Abstract
A method of the data conversion, a data conversion circuit and a data conversion program are provided which make the memory capacity of the circuit for storing the converted data small and can make the error of the output data small. To comprise a priority encoderoutputting bit number of '1' located at the most significant bit in the input data as L data, a bit-extracting portion outputting (L-) to (L-) bits in the input data as N data and (L-) to 0 bits as M data, a table address forming portionoutputting a first address obtained by combining the L data with the M data, a conversion-table storing portionstoring a conversion table where converted data corresponds to table addresses, a multiplexerselecting 0 or converted data and a linear interpolation portionprocessing interpolation based on the two converted data.