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:
Jun. 29, 1999
Filed:
Feb. 20, 1997
Katsuhide Kumagai, Niwa, JP;
Kanichi Tanaka, Niwa, JP;
Yousuke Obata, Niwa, JP;
Shigeji Ito, Niwa, JP;
Noboru Mizukami, Niwa, JP;
Osamu Inagaki, Niwa, JP;
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Niwa, JP;
Abstract
A motor drive control device, comprises: a switch which operates a motor; a motor which raises and lowers a door glass; a pulse signal generating device which synchronizes with the rotation of the motor and generates a pulse signal; and a determining device which, in a case in which there is a predetermined difference between this pulse signal and a normal pulse signal which is generated by synchronizing with the rotation of said motor, determines that the pulse signal generating device is failed. Therefore, in a case in which it is determined that the pulse signal generating device is failed and the switch is operated so that the motor raises the door glass, raising of the door glass can be stopped.