Samsung Electronics Co., Ltd.

Masamichi Ito

Junseok Kim

Yunjae Suh

Hyunsurk Eric Ryu

Keun Woo Park

Keun Joo Park

Seungnam Choi

An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.

Image sensor including CMOS image sensor pixel and dynamic vision sensor pixel

An amplifier includes a first capacitor connected between an input node and a floating node, a second capacitor connected between the floating node and an output node, an amplifying element connected between a power supply voltage and the output node and operating in response to a voltage level of the floating node, a current bias source connected between the output node and a ground voltage, a first reset switch connected between the floating node and an intermediate node and operating in response to a reset bias, a second reset switch connected between the intermediate node and the output node and operating in response to the reset bias, and a reset bias generator circuit that outputs the reset bias in response to a reset signal. The reset bias is one of a reset voltage of the intermediate node, the power supply voltage, and the ground voltage.

Amplifier and image sensor device including the same

Image sensor incuding CMOS image sensor pixel and dynamic vision sensor pixel

Growing community of inventors

Hwaseong-si, Japan

Masamichi Ito