US 12,317,057 B2
Self-calibrating microphone and loudspeaker arrays for wearable audio devices
Jonathan D. Sheaffer, San Jose, CA (US); Daniel K. Boothe, San Francisco, CA (US); Martin E. Johnson, Los Gatos, CA (US); Neal D. Evans, Sunnyvale, CA (US); Nikolas T. Vitt, Redwood City, CA (US); Christopher T. Eubank, Mountain View, CA (US); Peter V. Jupin, Copenhagen (DK); Symeon Delikaris Manias, Los Angeles, CA (US); and Shai Messingher Lang, Palo Alto, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Oct. 30, 2023, as Appl. No. 18/497,933.
Application 18/497,933 is a division of application No. 17/514,881, filed on Oct. 29, 2021, granted, now 11,832,082.
Application 17/514,881 is a continuation of application No. PCT/US2020/038485, filed on Jun. 18, 2020.
Claims priority of provisional application 62/865,089, filed on Jun. 21, 2019.
Prior Publication US 2024/0073638 A1, Feb. 29, 2024
Int. Cl. H04S 7/00 (2006.01); H04R 1/10 (2006.01); H04R 1/40 (2006.01); H04R 29/00 (2006.01)
CPC H04S 7/301 (2013.01) [H04R 1/1008 (2013.01); H04R 1/403 (2013.01); H04R 1/406 (2013.01); H04R 29/005 (2013.01); H04S 2400/01 (2013.01); H04S 2420/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for self-calibrating a beamforming process that uses a beamforming array of a plurality of audio elements in a wearable device, the method comprising:
producing, using the beamforming array, a directional beam pattern towards a location in space, wherein the directional beam pattern is produced based on a physical arrangement of the plurality of audio elements in the beamforming array;
determining whether there has been a change in the physical arrangement of the beamforming array; and
adjusting the directional beam pattern according to the change in the physical arrangement of the beamforming array.