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:
Dec. 26, 2017
Filed:
Sep. 20, 2016
Hyundai Motor Company, Seoul, KR;
Sang Gyu Park, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A high sensitivity microphone may include a sound detecting module including a vibration film and a fixed film, a power source circuit supplying a power source to the sound detecting module through a switch control of a first switch applying a first bias and a second switch applying a second bias, a detecting circuit removing a noise included in a first capacitance signal and a second capacitance signal that are differential input from the sound detecting module, according to a switch control of a third switch inputting the first capacitance signal in conjunction with the first switch and a fourth switch inputting the second capacitance signal in conjunction with the second switch, and a switch controller performing a first switch mode linking the first switch and the third switch and a second switch mode linking the second switch and the fourth switch for differential input and output of the microphone.