US 12,270,911 B2
Light receiving element and ranging system
Tatsuki Nishino, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Filed on Feb. 22, 2024, as Appl. No. 18/584,352.
Application 18/584,352 is a continuation of application No. 17/250,686, granted, now 11,940,536, previously published as PCT/JP2019/032123, filed on Aug. 16, 2019.
Claims priority of application No. 2018-163584 (JP), filed on Aug. 31, 2018.
Prior Publication US 2024/0264309 A1, Aug. 8, 2024
Int. Cl. G01S 17/89 (2020.01); G01J 1/44 (2006.01); H04N 25/705 (2023.01)
CPC G01S 17/89 (2013.01) [G01J 1/44 (2013.01); H04N 25/705 (2023.01); G01J 2001/4466 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A light receiving device, comprising:
a light receiving element, wherein the light receiving element is a Single Photon Avalanche Diode (SPAD) that includes:
an anode; and
a cathode;
a first transistor coupled to the light receiving element, wherein the first transistor is a first type;
a second transistor coupled to the first transistor, wherein the second transistor is a second type that is different from the first type;
an inverter coupled to the second transistor; and
a third transistor connected to a positive power supply voltage, wherein
a source of the second transistor is connected to a drain of the third transistor and an input terminal of the inverter.