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. 11, 2018
Filed:
Jul. 20, 2017
Keycore Technology Corp., Zhubei, Hsinchu County, TW;
Yang-Te Liang, Zhubei, TW;
Po-Wei Chiu, Zhubei, TW;
Sheng-Ruei Hsu, Zhubei, TW;
Wei-Cheng Lin, Zhubei, TW;
Chien-Jen Hsiao, Zhubei, TW;
Shih-Hsiu Tseng, Zhubei, TW;
KEYCORE TECHNOLOGY CORP., Zhubei, TW;
Abstract
A specific multi-band antenna impedance matching circuit and a tire-pressure monitoring device using same are disclosed. The antenna impedance matching circuit includes at least one first, one second and one third inductance unit and at least one first, one second and one third capacitance unit. The first capacitance unit is connected at a first end to first ends of the first and the second inductance unit and at a second end to a ground; the second inductance unit and the second capacitance unit are connected in series; the third inductance unit and the third capacitance unit are connected in parallel; and the third inductance unit is connected at a first end to a first end of the second capacitance unit and at a second end to the ground.