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:
Mar. 25, 2025
Filed:
May. 22, 2023
Applicant:
Xmems Labs, Inc., Santa Clara, CA (US);
Inventors:
Assignee:
xMEMS Labs, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 23/00 (2006.01); H04R 1/30 (2006.01); H04R 3/04 (2006.01); H04R 7/06 (2006.01); H04R 17/00 (2006.01);
U.S. Cl.
CPC ...
H04R 23/00 (2013.01); H04R 1/30 (2013.01); H04R 3/04 (2013.01); H04R 7/06 (2013.01); H04R 17/00 (2013.01); H04R 2217/03 (2013.01);
Abstract
An air-pulse generating device includes a film structure. The film structure is driven to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is driven to form an opening at a rate synchronous with the ultrasonic carrier frequency. The air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation, and the plurality of air pulses is asymmetric.