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. 09, 2003
Filed:
Apr. 24, 2002
Yi-Ting Hwan, Taoyuan, TW;
Taiwan Alpha Electronic Co., Ltd., Taoyuan, TW;
Abstract
An optical potentiometer comprised of a specialized circuit board and a movable reflector device capable of traveling left and right stably on the specialized circuit board. The movable reflector device has a reflecting mirror suitably disposed in alignment with a light wave transmitter on the specialized circuit board that enables the reflection of light waves emitted by the light wave transmitter to the area of a point detecting light wave receiver. The light waves are thereafter amplified and filtered to predetermined settings by an amplifier and a filter on the specialized circuit board and, furthermore, stored in an memory bank as reference values that facilitate a controller to calculate the actual distance traveled by the movable reflector device through a comparison of the predetermined settings with the standard excursion range in the controller, which then drives an digital variable resistor to output a resistance value that corresponds to the distance traveled.