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. 18, 2015
Filed:
Feb. 08, 2013
Kabushiki Kaisha Audio-technica, Machida-shi, Tokyo, JP;
KABUSHIKI KAISHA AUDIO-TECHNICA, Machida-Shi, Tokyo, JP;
Abstract
To provide an insulator, which supports a fixed pole in a unidirectional condenser microphone in a shareable manner among microphones that are different in the distance between acoustic terminals from one another. Coarse adjustment is performed on an insulatorincluding a plurality of sound holesdrilled therein by acoustically closing a predetermined sound holeamong the plurality of sound holesby a predetermined sound hole closing means, and fine adjustment is performed by applying a predetermined amount of compressive force to an acoustic resistance memberby an acoustic resistance adjusting means(adjustment nut), so as to adjust acoustic resistance present in a sound wave passage from a rear acoustic terminal to the back of a diaphragm.