US 12,075,213 B2
Air-pulse generating device
Jemm Yue Liang, Sunnyvale, CA (US); and Jye Ren, Taipei (TW)
Assigned to xMEMS Labs, Inc., Santa Clara, CA (US)
Filed by xMEMS Labs, Inc., Santa Clara, CA (US)
Filed on May 22, 2023, as Appl. No. 18/321,757.
Application 18/321,757 is a continuation in part of application No. 17/553,806, filed on Dec. 17, 2021, granted, now 11,758,335.
Claims priority of provisional application 63/459,170, filed on Apr. 13, 2023.
Claims priority of provisional application 63/447,758, filed on Feb. 23, 2023.
Claims priority of provisional application 63/447,835, filed on Feb. 23, 2023.
Claims priority of provisional application 63/436,103, filed on Dec. 29, 2022.
Claims priority of provisional application 63/435,275, filed on Dec. 25, 2022.
Claims priority of provisional application 63/434,474, filed on Dec. 22, 2022.
Claims priority of provisional application 63/433,740, filed on Dec. 19, 2022.
Claims priority of provisional application 63/428,085, filed on Nov. 27, 2022.
Claims priority of provisional application 63/354,433, filed on Jun. 22, 2022.
Claims priority of provisional application 63/353,610, filed on Jun. 19, 2022.
Claims priority of provisional application 63/353,588, filed on Jun. 18, 2022.
Claims priority of provisional application 63/347,013, filed on May 30, 2022.
Claims priority of provisional application 63/346,848, filed on May 28, 2022.
Claims priority of provisional application 63/171,281, filed on Apr. 6, 2021.
Claims priority of provisional application 63/143,510, filed on Jan. 29, 2021.
Claims priority of provisional application 63/142,627, filed on Jan. 28, 2021.
Claims priority of provisional application 63/139,188, filed on Jan. 19, 2021.
Claims priority of provisional application 63/138,449, filed on Jan. 17, 2021.
Claims priority of provisional application 63/137,479, filed on Jan. 14, 2021.
Prior Publication US 2023/0308810 A1, Sep. 28, 2023
Int. Cl. H04R 23/00 (2006.01); H04R 3/04 (2006.01); H04R 7/06 (2006.01); H04R 17/00 (2006.01)
CPC H04R 23/00 (2013.01) [H04R 3/04 (2013.01); H04R 7/06 (2013.01); H04R 17/00 (2013.01); H04R 2217/03 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An air-pulse generating device, comprising:
a film structure;
a first actuator, disposed on the film structure and configured to actuate the film structure;
wherein the film structure is driven by a modulation-driving signal, so as to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency;
wherein the film structure is driven by a first demodulation-driving signal and a second demodulation-driving signal, so as to form an opening at a rate synchronous with the ultrasonic carrier frequency;
wherein the air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation;
wherein the first actuator comprises a first electrode and a second electrode;
wherein the first electrode and the second electrode receive the modulation-driving signal and the first demodulation-driving signal.