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:
Apr. 23, 2019
Filed:
Jan. 24, 2017
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventors:
Colin Wei Hong Chung, Edinburgh, GB;
Scott Lyall Cargill, Edinburgh, GB;
Colin Robert Jenkins, Linlithgow, GB;
Assignee:
Cirrus Logic, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B81B 7/00 (2006.01); B81C 1/00 (2006.01); G01L 9/00 (2006.01); H04R 19/04 (2006.01); H04R 19/00 (2006.01); H04R 31/00 (2006.01); B81B 3/00 (2006.01);
U.S. Cl.
CPC ...
B81B 7/0061 (2013.01); B81B 3/007 (2013.01); B81C 1/00158 (2013.01); G01L 9/0042 (2013.01); G01L 9/0073 (2013.01); H04R 19/005 (2013.01); H04R 19/04 (2013.01); H04R 31/00 (2013.01); B81B 2201/0257 (2013.01); B81B 2201/0264 (2013.01); B81B 2203/0109 (2013.01); B81B 2203/0118 (2013.01); B81B 2203/0127 (2013.01); B81B 2203/058 (2013.01); B81B 2207/012 (2013.01); H01L 2224/16225 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48227 (2013.01); H01L 2924/15151 (2013.01); H04R 2201/003 (2013.01); H04R 2499/11 (2013.01);
Abstract
The application describes MEMS transducers having a vent structure provided in a flexible membrane of the vent structure The vent structure comprises at least one moveable portion and the vent structure is configured such that, in response to a differential pressure across the vent structure, the moveable portion is rotatable about first and second axes of rotation, which axes of rotation extend in the plane of the membrane.