US 12,070,772 B2
Devices, systems and processes for improving frequency measurements during reverberation periods for ultra-sonic transducers
Zdenek Axman, Sebetov (CZ); Tomas Suchy, Brno (CZ); and Petr Kamenicky, Brno (CZ)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Aug. 28, 2023, as Appl. No. 18/456,973.
Application 18/456,973 is a continuation of application No. 16/867,298, filed on May 5, 2020, granted, now 11,759,822.
Claims priority of provisional application 62/963,820, filed on Jan. 21, 2020.
Prior Publication US 2023/0405634 A1, Dec. 21, 2023
Int. Cl. B06B 1/02 (2006.01); G10K 9/122 (2006.01)
CPC B06B 1/0215 (2013.01) [G10K 9/122 (2013.01); B06B 2201/30 (2013.01); B06B 2201/55 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A sensor, comprising:
a transformer having a primary side and a secondary side;
a primary short circuit coupled to the primary side of the transformer;
a transducer coupled to the secondary side of the transformer and configured to generate
a receive signal during a portion of at least one of a reverberation period or an echo period; and
a phase detector configured to activate the primary short circuit in response to a zero-crossing of the receive signal.