US 12,457,467 B2
Active noise cancellation system and method
Tao Feng, Novi, MI (US); Geon-Seok Kim, Novi, MI (US); Sihui Wu, Irvine, CA (US); Shengwei Bai, Suzhou (CN); Michael Hinz, Vancouver (CA); and Rajeshkumar Venugopal, Waterford, MI (US)
Assigned to HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED, Stamford, CT (US)
Filed by Harman International Industries, Incorporated, Stamford, CT (US)
Filed on Apr. 21, 2023, as Appl. No. 18/305,150.
Prior Publication US 2024/0357305 A1, Oct. 24, 2024
Int. Cl. H04R 5/02 (2006.01); H04S 7/00 (2006.01)
CPC H04S 7/302 (2013.01) [H04S 2420/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A noise cancellation system, comprising:
a vehicle having a plurality of speakers and a plurality of microphones;
a plurality of sensors; and
a controller with computer readable instructions stored on non-transitory memory that when executed cause the controller to:
generate a noise cancellation signal using a set of head-related impulse responses for the plurality of speakers and the plurality of microphones based on a head position of one or more occupants and a plurality of transfer functions, including to selectively update only a subset of the plurality of transfer functions responsive to the plurality of sensors detecting head movement greater than a threshold, while maintaining the rest of the plurality of transfer functions static.