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:
Aug. 12, 2008
Filed:
Nov. 13, 2006
Applicants:
Tien Yew Kang, Singapore, SG;
Kian Teck Teo, Singapore, SG;
Yubin Liu, Singapore, SG;
Inventors:
Assignees:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Panasonic Semiconductor Asia Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 11/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electric motor speed controller for use in a bicycle includes a motor to provide a propulsion force to move the bicycle. The actual motor speed and a target motor speed are compared, and if the actual motor speed is lower, more current is supplied to the motor, and if the actual motor speed is higher, less current is supplied to the motor.