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. 07, 2018
Filed:
Jan. 23, 2015
Mstar Semiconductor, Inc., Hsinchu Hsien, TW;
Kai-Ting Ho, Zhubei, TW;
Guo-Kiang Hung, Zhubei, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A data reading device that transmits power to a data transmission device and reads data transmitted from the data transmission device is provided. The data reading device includes: a first electrode, forming a first coupling capacitance with the data transmission device; a second electrode, forming a second coupling capacitance with the data transmission device; a control circuit, coupled to the first electrode and the second electrode, configured to provide the first electrode with a first reference voltage and the second electrode with a second reference voltage to cause a voltage difference between the first electrode and the second electrode to vary with time, and to detect charge changes of the first coupling capacitance and the second capacitor; and a determination unit, coupled to the control circuit, configured to determine the data according to the charge changes.