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:
Feb. 24, 2009
Filed:
Sep. 29, 2005
Ikuma Murokita, Fukuoka, JP;
Takefumi Kabashima, Fukuoka, JP;
Yuji Arinaga, Fukuoka, JP;
Yasushi Yoshida, Fukuoka, JP;
Ikuma Murokita, Fukuoka, JP;
Takefumi Kabashima, Fukuoka, JP;
Yuji Arinaga, Fukuoka, JP;
Yasushi Yoshida, Fukuoka, JP;
Kabushiki Kaisha Yaskawa Denki, Fukuoka, JP;
Abstract
An encoder signal processing device comprising an A/D converter converting a periodic analog signal, a memory storing position detection error information and a computing unit including a position data calculator which calculates position data from the digital data and an error correcting section which corrects the position data based on the position detection error information. The memory includes a first memory encoding position error data which is included in the position data by the use of the computing unit and storing a correction coefficient. A second memory decoding the position error data on the basis of the correction coefficient by the use of the computing unit and storing correction data for correcting the position data and error-containing position data generated on the basis of the encoded position error data.