US 12,436,275 B2
Ultrasonic device coexistence
Joe Youssef, Noyarey (FR); Mitchell Kline, Alameda, CA (US); and Richard J. Przybyla, Piedmont, CA (US)
Assigned to InvenSense, Inc., San Jose, CA (US)
Filed by InvenSense, Inc., San Jose, CA (US)
Filed on Jun. 29, 2023, as Appl. No. 18/216,203.
Claims priority of provisional application 63/358,116, filed on Jul. 2, 2022.
Prior Publication US 2024/0004061 A1, Jan. 4, 2024
Int. Cl. G01S 15/00 (2020.01); G01S 7/52 (2006.01); G01S 15/10 (2006.01); G01S 15/87 (2006.01)
CPC G01S 15/003 (2013.01) [G01S 7/52004 (2013.01); G01S 15/107 (2013.01); G01S 15/876 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A device comprising:
an ultrasonic sensor configured to repeatedly emit ultrasonic pulses during transmit periods which are interspersed with receive periods, where returned ultrasonic signals corresponding to the emitted ultrasonic pulses are received by the ultrasonic sensor during the receive periods; and
a processor communicatively coupled with the ultrasonic sensor, and configured to:
direct, by the processor, the ultrasonic sensor to listen during a listening window for a potentially interfering ultrasonic signal from a second ultrasonic sensor, wherein the listening window is prior to a transmit period of the transmit periods; and
in response to detecting the potentially interfering ultrasonic signal during the listening window, the processor adjusts operation of the ultrasonic sensor to avoid an ultrasonic collision with the second ultrasonic sensor to facilitate coexistence of the ultrasonic sensor and the second ultrasonic sensor in an operating environment shared by the ultrasonic sensor and the second ultrasonic sensor.