US 12,192,723 B2
Techniques for generating audio signals
Mordehai Margalit, Zichron Yaaqov (IL)
Assigned to SONICEDGE LTD., Shoham (IL)
Filed by SONICEDGE LTD., Shoham (IL)
Filed on Jul. 3, 2023, as Appl. No. 18/217,652.
Application 18/217,652 is a continuation of application No. 17/729,310, filed on Apr. 26, 2022, granted, now 11,743,650.
Application 17/729,310 is a continuation of application No. 17/060,277, filed on Oct. 1, 2020, granted, now 11,323,816, issued on May 3, 2022.
Claims priority of provisional application 62/952,480, filed on Dec. 23, 2019.
Prior Publication US 2023/0353943 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 7/08 (2006.01); H04R 17/00 (2006.01); H04R 19/02 (2006.01)
CPC H04R 7/08 (2013.01) [H04R 17/00 (2013.01); H04R 19/02 (2013.01); H04R 2217/03 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A speaker array comprising:
a first speaker device comprising a first membrane and a first acoustic channel, the first membrane being configured to oscillate and generate a first ultrasonic acoustic signal configured to be transmitted at least partially in the first acoustic channel, the first acoustic channel including at least one dimension comparable to a dimension of a viscous boundary layer of air such that acoustic flow through the first acoustic channel is nonlinear, and
a second speaker device comprising a second membrane and a second acoustic channel, the second membrane being configured to oscillate and generate a second ultrasonic acoustic signal configured to be transmitted at least partially in the second acoustic channel, the second acoustic channel including at least one dimension comparable to the dimension of the viscous boundary layer of air such that acoustic flow through the second acoustic channel is nonlinear,
wherein an audio output of the speaker array is the combined output of at least the first speaker device and the second speaker device.