US 12,256,164 B2
Pixel circuit and solid-state imaging device
Eshar Ben-Dor, Stuttgart (DE)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 18/282,221
Filed by Sony Semiconductor Solutions Corporation, Atsugi (JP)
PCT Filed Feb. 24, 2022, PCT No. PCT/EP2022/054653
§ 371(c)(1), (2) Date Sep. 15, 2023,
PCT Pub. No. WO2022/199972, PCT Pub. Date Sep. 29, 2022.
Claims priority of application No. 21165249 (EP), filed on Mar. 26, 2021.
Prior Publication US 2024/0163583 A1, May 16, 2024
Int. Cl. H04N 25/77 (2023.01)
CPC H04N 25/77 (2023.01) 18 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a photoreceptor module comprising a photoelectric conversion element, wherein the photoreceptor module is configured to output a photoreceptor signal with a voltage level depending on a detector current generated by the photoelectric conversion element;
a voltage memory capacitor configured to receive the detector signal at a first electrode; and
a latch comparator circuit configured to receive a latch input signal based on a shifted voltage signal tapped from a second electrode of the voltage memory capacitor, wherein the latch comparator circuit includes a signal input to receive the latch input signal, a reference input to receive a latch reference signal, and a control input to receive to receive a latch control signal.