US 12,111,395 B2
Acoustic sensing of proximate obstacles
Marek Hustava, Bratislava (SK); and Pavel Kostelnik, Bordovice (CZ)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Apr. 13, 2023, as Appl. No. 18/299,928.
Claims priority of provisional application 63/482,188, filed on Jan. 30, 2023.
Claims priority of provisional application 63/482,183, filed on Jan. 30, 2023.
Prior Publication US 2024/0255638 A1, Aug. 1, 2024
Int. Cl. G01S 15/931 (2020.01); G01S 7/52 (2006.01); G01S 7/523 (2006.01); G01S 7/527 (2006.01); G01S 7/536 (2006.01); G01S 15/10 (2006.01)
CPC G01S 15/931 (2013.01) [G01S 7/52004 (2013.01); G01S 7/523 (2013.01); G01S 7/527 (2013.01); G01S 7/536 (2013.01); G01S 15/10 (2013.01); G01S 15/101 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A controller for an acoustic transducer, the controller comprising:
a transmitter to drive the acoustic transducer to generate a first acoustic burst and a second acoustic burst;
a receiver coupled to the acoustic transducer to sense a first response to the first acoustic burst and a second response to the second acoustic burst; and
a processing circuit to derive output data from the first response and the second response in part by determining an offset frequency difference between the first response and the second response, wherein the first acoustic burst has a first characteristic frequency and the second acoustic burst has a second characteristic frequency different from the first characteristic frequency.