US 12,123,982 B2
Sychronization device, associated time of flight sensor and method
Cedric Tubert, Saint-Egreve (FR)
Assigned to STMicroelectronics (Grenoble 2) SAS, Grenoble (FR)
Filed by STMicroelectronics (Grenoble 2) SAS, Grenoble (FR)
Filed on Feb. 17, 2021, as Appl. No. 17/177,608.
Claims priority of application No. 2001538 (FR), filed on Feb. 17, 2020.
Prior Publication US 2021/0255291 A1, Aug. 19, 2021
Int. Cl. G01S 7/48 (2006.01); G01S 7/4865 (2020.01); G01S 7/497 (2006.01); G01S 17/36 (2006.01)
CPC G01S 7/497 (2013.01) [G01S 7/4865 (2013.01); G01S 17/36 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for synchronizing emission and reception of a light signal for a time-of-flight sensor, the method comprising:
generating a power signal to supply power to an array of pixels of the time-of-flight sensor, the power signal generated based on a control signal for controlling the time-of-flight sensor;
transmitting a synchronization signal to a device for emitting the light signal, the synchronization signal being produced based on the control signal, wherein a time taken to produce and transmit the synchronization signal and a time taken to generate and transmit the power signal are identical; and
controlling a switch of the device for emitting the light signal based on the synchronization signal, the switch being configured to supply power to a light source of the device for emitting the light signal.