US 11,927,688 B2
Firearm discharge location systems and methods
Eric G. Gonzalez, Richland, WA (US); Michael S. Hughes, Richland, WA (US); and Anton S. Sinkov, Richland, WA (US)
Assigned to Battelle Memorial Institute, Richland, WA (US)
Appl. No. 17/285,276
Filed by Battelle Memorial Institute, Richland, WA (US)
PCT Filed May 15, 2020, PCT No. PCT/US2020/033167
§ 371(c)(1), (2) Date Apr. 14, 2021,
PCT Pub. No. WO2020/236607, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/849,877, filed on May 18, 2019.
Prior Publication US 2021/0389412 A1, Dec. 16, 2021
Int. Cl. G01S 5/22 (2006.01); G01S 3/808 (2006.01); G01S 5/18 (2006.01); H04R 1/08 (2006.01); H04R 3/00 (2006.01)
CPC G01S 5/22 (2013.01) [G01S 3/808 (2013.01); G01S 5/18 (2013.01); G01S 2205/06 (2020.05); H04R 1/08 (2013.01); H04R 3/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A firearm discharge location system comprising:
a plurality of microphones spaced from one another;
timing circuitry configured to generate a plurality of asynchronous timing references;
wherein data capture operations with respect to the microphones of a first pair are synchronized with one another using a first of the timing references and data capture operations with respect to the microphones of a second pair are synchronized with one another using a second of the timing references; and
processing circuitry configured to use outputs of the first and second pairs of the microphones to identify a location of a firearm discharge.