Samsung Electronics Co., Ltd.

Jaeho Baek

JOngseok Seo

Jeongseok Kim

Seungnam Choi

Jongwoo Bong

Donghee Yeo

Byoungmoo Kim

A vision sensor includes a pixel array including a plurality of pixels, a voltage generator configured to generate a reset bias voltage provided to each of the plurality of pixels, a temperature comparing circuit configured to output a switching setting value according to a result of comparing temperature information with at least one reference temperature value, and a voltage level controller configured to generate a reset bias setting signal based on the switching setting value. The reset bias setting signal adjusts a voltage level of the reset bias voltage.

Vision sensor and operating method thereof

Provided are a vision sensor, an image processing device including the same, and an operating method of the vision sensor. The vision sensor includes a pixel array including a plurality of pixels, a synchronization control module configured to receive a synchronization signal from an external image sensor and generate an internal trigger signal based on the synchronization signal, an event detection circuit configured to receive the internal trigger signal and detect whether an event has occurred in the plurality of pixels and generate event signals corresponding to pixels in which the event has occurred, and an interface circuit configured to receive the event signals and transmit to an external processor vision sensor data based on the trigger signal and at least one of the event signals, where the vision sensor data includes matching information for timing image frame information generated by the image sensor and the event signals generated by the vision sensor.

Vision sensor, image processing device including the same, and operating method of the vision sensor

The present disclosure relates to a dynamic vision sensor. The dynamic vision sensor comprises a pixel array, address event representations, and a control logic. The pixel array includes a plurality of dynamic vision sensor (DVS) pixels connected to a plurality of row lines and a plurality of column lines. Each of the DVS pixels is configured to output an event signal in response to a change in light. The address event representations are configured to select one of the plurality of column lines and obtain an event signal output from DVS pixels connected to the selected column line. The control logic is configured to generate image data, including an object capable of generating a movement using an event signal output from each of the plurality of DVS pixels. The control logic divides the plurality of DVS pixels into a plurality of groups and allocates different readout times to each of the plurality of groups.

Growing community of inventors

Suwon-si, South Korea

Jaeho Baek