US 11,758,336 B2
Combinatory directional processing of sound signals
Stefan Jozef Mauger, Macleod (AU)
Assigned to Cochlear Limited, Macquarie University (AU)
Appl. No. 17/268,555
Filed by Cochlear Limited, Macquarie University (AU)
PCT Filed Oct. 24, 2019, PCT No. PCT/IB2019/059129
§ 371(c)(1), (2) Date Feb. 15, 2021,
PCT Pub. No. WO2020/089745, PCT Pub. Date May 7, 2020.
Claims priority of provisional application 62/860,858, filed on Jun. 13, 2019.
Claims priority of provisional application 62/753,124, filed on Oct. 31, 2018.
Prior Publication US 2021/0243533 A1, Aug. 5, 2021
Int. Cl. H04R 25/00 (2006.01); G10L 25/18 (2013.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 3/04 (2006.01)
CPC H04R 25/407 (2013.01) [G10L 25/18 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H04R 25/405 (2013.01); H04R 25/505 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a plurality of first frequency components associated with a first directional microphone signal;
determining a plurality of second frequency components associated with a second directional microphone signal;
multiplying the first frequency components with the second frequency components to generate a cross-power signal;
converting the cross-power signal to an amplitude domain signal; and
reconstructing a phase of the amplitude domain signal to generate an amplitude domain combinatory directional microphone signal from the amplitude domain signal and the phase.