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:
May. 30, 2006
Filed:
Jul. 27, 2004
Ayako Yamada, Fujieda, JP;
Ayako Yamada, Fujieda, JP;
Murakami Corporation, Shizuoka, JP;
Abstract
As a vertical motion motor (M) comprised of a brushless motor is driven to rotate in response to a control signal from a main controller (), a pulse signal generated with the shape corresponding to the number of rotations of the vertical motion motor (M) is counted by a pulse signal count unit of the main controller (). Feedback control is exercised over the number of rotations of the vertical motion motor (M) in accordance with a count value (the number of counts) of the pulse signal, so that mirror surface orientation of a door mirror () can be accurately adjusted to tilt downward to a predetermined set angle, and to tilt upward back to a home position angle. A mirror angle control apparatus () is provided with high durability and reliability, which can exercise accurate control for a long period of time.