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. 25, 2007
Filed:
Feb. 28, 2005
Fumihiro Inoue, Tama, JP;
Kouji Edamura, Tama, JP;
Naoto Endo, Tama, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A drive state detection circuit is disclosed that detects a drive state of plural parts driven by alternating currents. The drive state detection circuit comprises current detecting parts to detect alternating current detection signals of the respective alternating currents flowing through the driven parts, a maximum value output part to output an alternating current detection signal having a maximum value among the alternating current detection signals detected by the current detecting parts, a coefficient multiplication part to multiply the signal output from the maximum value output part by a coefficient, a comparing part to compare the multiplied signal with the alternating current detection signals so as to output state signals corresponding to the respective driven parts, a logic synthesizing part to generate an output by logically synthesizing the state signals output from the comparing part, and an output part to generate a drive state detection signal based on the output from the logic synthesizing part.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile