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. 30, 2019
Filed:
May. 08, 2018
Delta Electronics, Inc., Taoyuan, TW;
DELTA ELECTRONICS, INC., Taoyuan, TW;
Abstract
A conveyor system includes a moving stage, a track, a control circuit and a driver. The moving stage has a plurality of magnets and an optical scale. The track carries the moving stage and includes a first work area provided with a plurality of Hall sensor modules and a second work area provided with the Hall sensor modules and a read head module. When the moving stage is in the first work area, the Hall sensor module generates a first sensing signal. When the moving stage is in the second work area, the Hall sensor module generates the first sensing signal and the read head module generates a second sensing signal. The control circuit determines the position of the moving stage based on the first sensing signal and the second sensing signal, and generates a driving signal. The driver drives the coil windings according to the driving signal.