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:
Jul. 01, 2008
Filed:
Jun. 07, 2006
Yu-chia Hsu, Taoyuan Hsien, TW;
Te-yang Shen, Taoyuan Hsien, TW;
Ming Yeh, Taoyuan Hsien, TW;
Yuan-ying Yu, Taoyuan Hsien, TW;
Yu-Chia Hsu, Taoyuan Hsien, TW;
Te-Yang Shen, Taoyuan Hsien, TW;
Ming Yeh, Taoyuan Hsien, TW;
Yuan-Ying Yu, Taoyuan Hsien, TW;
Delta Electronics, Inc., Taoyuan Hsien, TW;
Abstract
An automatic anti-trap device is provided to add safety to other apparatuses. The automatic anti-trap device of this invention has a driving circuit to control a motor, a current sensor to generate a current signal, a current ripple peak value circuit to generate a current ripple peak value signal according to the current signal, and a micro processor to generate a working signal for the driving circuit to control the motor according to a keystroke signal, the current signal and the current ripple peak value signal.