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:
Mar. 15, 2011
Filed:
Jun. 26, 2007
Jun Fujita, Mishima, JP;
Takamichi Ito, Numazu, JP;
Jun Fujita, Mishima, JP;
Takamichi Ito, Numazu, JP;
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
A driving velocity of a motor is detected by processing a position information signal output from a sensor in accordance with a driving position of a motor. The signal processing device includes a position information signal processor () that processes the position information signal and calculates driving velocity information of the motor, and an internal position information generator () that reflects a latest driving velocity information (ω) calculated by the position information signal processor () and generates a latest presumed position of the motor as internal position information. An amplitude correcting unit () detects the amplitude of the position information signal from the sensor and corrects the amplitude of the internal position information signal based on the detected amplitude.