US 11,893,974 B2
Flow controlled sound generation apparatus
Manjirnath Chatterjee, San Francisco, CA (US)
Assigned to DeftIO LLC, San Francisco, CA (US)
Filed by DeftIO LLC, San Francisco, CA (US)
Filed on Mar. 4, 2022, as Appl. No. 17/687,479.
Application 17/687,479 is a continuation of application No. 16/888,331, filed on May 29, 2020, granted, now 11,282,488.
Application 16/888,331 is a continuation of application No. 15/812,050, filed on Nov. 14, 2017, granted, now 10,679,597, issued on Jun. 9, 2020.
Application 15/812,050 is a continuation of application No. 14/145,783, filed on Dec. 31, 2013, granted, now 9,818,391, issued on Nov. 14, 2017.
Claims priority of provisional application 61/748,050, filed on Dec. 31, 2012.
Prior Publication US 2022/0262334 A1, Aug. 18, 2022
Int. Cl. G10K 7/00 (2006.01); G10K 9/20 (2006.01)
CPC G10K 7/00 (2013.01) [G10K 7/005 (2013.01); G10K 9/20 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A sound generation system comprising:
a controller;
a first fluid pump to produce an air flow through a sound channel; and
a sound control medium disposed within the sound channel, the sound control medium comprising a valve array, the valve array including a plurality of valves;
wherein each valve of the plurality of valves includes a chamber-based modulator that includes multiple chambers, the chamber-based modulator of each of the plurality of valves being operable to generate multiple drive phases.