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. 13, 2007
Filed:
Jan. 31, 2003
Takashi Okano, Sakai, JP;
Takashi Okano, Sakai, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
This invention relates to a rotational speed control system including a plurality of motor drivers for driving motors, and the object thereof is to drive a plurality of motors at the same rotational speed without depending on the number of motor drivers and without depending on the characteristics of each motor driver. A remote controllerand a motor driverare connected to a motor driver. The motor driversandcontrol motors Mand Mat a prescribed rotational speed, respectively. A rotational speed instructing signalindicative of the rotational speed is supplied from the remote controllerto the motor driver, and further supplied from the motor driverto the motor driver. Because the rotational speed instructing signalindicates a rotational speed which is transmitted in a digital value between the motor driversand, both of the motors Mand Mare driven at the rotational speed indicated by the rotational speed instructing signal
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile