Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Korea Institute of Science and Technology

Junseok Kim

Yunjae Suh

Hyunsurk Eric Ryu

Sung Ho Kim

Seungnam Choi

Eric Hyunsurk Ryu

Keun Woo Park

Keun Joo Park

Masamichi Ito

Jongwoo Bong

Junhyuk Park

Jooyeon Woo

Hyunku Lee

Yohan J Roh

Jeongseok Kim

Seol Namgung

Hyunsuk Choi

Jun Haeng Lee

Heejae Jung

Jong Ho Lee

Soyeon Kim

Sangshin Lee

Jiyoun Lee

Jongwon Choi

Banglin Lee

Yongsuk Cho

Namheon Lee

Dongyeong Kim

Dmitry Kravchuk

Byung Kook Kim

Hae-Weon Lee

Sangbaek Park

Kyung Joong Yoon

Yasushi Koishikawa

Ji-Won Son

JOngseok Seo

Hyoungchul Kim

Jaeha Park

Jaeeun Lee

Changwoo Shin

Bongki Son

Jiwon Im

Keunjoo Park

Raeyoung Kim

Donghee Yeo

Hee-Jae Jo

Se-Hoon Lim

Hosoon Lee

Sungeun Yang

Jongmun Choi

Ho Il Ji

Hongseok Kim

Sungmin Shin

Inchun Lim

Byoungsoo Ko

Taeho Yoon

Keunjoo Paul Park

Moradi Saber

Minhyouk Kim

Jongcheol Jang

Hyungchul Lee

Sangung An

Juree Kim

Younggoo Kang

Dongmin Kang

Byeonggwan Lee

Hyoseok Woo

Hyunsook Yoon

Jisu Shin

Erichyunsurk Ryu

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

An operation method of an image signal processing device includes receiving a raw pixel code from an external image sensor device including an image pixel, generating a non-linear pixel code by performing non-linear mapping on the raw pixel code, and outputting a downsized pixel code obtained by performing a masking operation on bit positions including a first bit position corresponding to a most significant bit of the non-linear pixel code and a second bit position corresponding to a least significant bit of the non-linear pixel code. An amplitude of the raw pixel code is linear to illuminance of a light incident onto the image pixel, an amplitude of the non-linear pixel code is non-linear to the amplitude of the raw pixel code, and the non-linear pixel code has a first code length, and the downsized pixel code has a second code length smaller than the first code length.

Image signal processing device and operation method thereof

Disclosed is a dynamic vision sensor. The dynamic vision sensor includes a photodiode configured to generate a first photodiode current in response to a change in light due to a movement of an object, a first transistor; a first node connected to the photodiode and the first transistor; a second node connected to the first transistor and being configured to receive a first voltage and receive a second voltage, a ground, a second transistor connected to the first node and the ground, a third node connected to the first transistor and the second transistor, and a current source connected to the third node, wherein the first voltage has a first level and the second voltage has a second level different from the first level.

Dynamic vision sensor with bias variation circuit, image signal processor and application processor

A sensor includes a determining circuit and an output circuit. The determining circuit receives a first signal from a pixel in response to light and outputs a second signal associated with occurrence of an event, based on the first signal. Based on the second signal being received in a time period between a first time when a third signal is received from a processor and a second time when a condition is satisfied, the output circuit outputs a fourth signal associated with occurrence of the event in the time period to the processor after the second time.

Sensor for accumulation signal

A dynamic vision sensor (DVS) including a plurality of substrates electrically connected to one another and stacked vertically includes a photoelectric conversion device configured to generate charges in response to incident light from an external environment that is external to the DVS sensor, a bipolar junction transistor (BJT) device including a base connected to the photoelectric conversion device and configured to output a current based on amplifying a current output from the photoelectric conversion device, and a DVS pixel circuit that detects a change in intensity of the incident light and to output an event signal based on the current. The photoelectric conversion device is on a first substrate among the plurality of substrates. At least part of the DVS pixel circuit is on a different substrate from the first substrate among the plurality of substrates.

Dynamic vision sensor in low light environment and the operating method thereof

A vision sensor is provided. The vision sensor includes: a pixel array including a plurality of pixels, each of the plurality of pixels being configured to generate an event signal based on an event in which intensity of incident light changes; and an event detection circuit including a state register including a first flip-flop and a second flip-flop. The event detection circuit is configured to: based on the event signal, store first data in the first flip-flop, the first data indicating whether flicker has occurred in each of the plurality of pixels, store second data in the second flip-flop, the second data indicating whether the event has occurred in each of the plurality of pixels, and based on a comparison of the first data and the second data, identify and delete a portion of the second data in which the flicker has occurred.

Vision sensor, event signal processing method of the vision sensor, and imaging processing device including the vision sensor

Provided are a vision sensor and an image processing device including the vision sensor. The vision sensor includes a pixel array including a plurality of pixels each including a photoelectric conversion device, which is configured to generate an optical current, a read-out circuit configured to generate intensity image data based on a magnitude of a voltage converted from the optical current, and a data output logic configured to generate event data based on a variation amount in the voltage converted from the optical current.

Vision sensor and image processing device including the same

A method of forming a transparent member according to an embodiment may include: a process of putting a first transparent substrate and a second transparent substrate into a first cavity of a lower mold that has a first depth and a second cavity of a lower mold that is connected to the first cavity and has a second depth, respectively; a process of disposing an upper mold, which corresponds to the lower mold and includes a pressing portion having at least one pressing surface, on an upper portion of the lower mold; a process of preheating at least one of the lower mold in which the transparent substrates are disposed or the upper mold to a predetermined temperature; and a process of thermoforming the preheated transparent substrates by pressing the preheated transparent substrates in a manner of pressing the upper mold. Various other embodiments identified through the specification are possible.

Transparent member, electronic device including same, and thermoforming method of transparent member

A vision sensor includes a memory; a pixel array including a plurality of pixels configured to generate an event signal by detecting an event in which an intensity of incident light changes; and an event detection circuit configured to read the event signal from the pixel array and configured to process the event signal, wherein the event detection circuit configured to: store, in the memory, a state map including a first state corresponding to a presence of an event of each of the plurality of pixels, and a second state corresponding to an absence of the event, and correct the event occurring in a selected pixel, based on the state map stored in the memory.

Vision sensor, event signal processing method thereof, and image processing device including the same

An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.

Image processing device configured to regenerate timestamp and electronic device including the same

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 electronic device is provided. The electronic device includes a first housing, a second housing rotatable with respect to the first housing, a hinge structure connecting the first housing to the second housing, a first glass member disposed in the first housing and including a first outer surface part and a first inner surface part including a first curved portion, a second glass member disposed in the second housing and including a second outer surface part and a second inner surface part including a second curved portion, a first display disposed between the first housing and the first glass member, a second display disposed between the second housing and the second glass member, and a light dispersion pattern layer including a portion disposed on the (1-2)th portion or the (2-2)th portion.

Multi display structure and electronic device with the same

A pixel of a vision sensor includes a photoelectric converter configured to convert an optical signal into a current, a current-to-voltage converter configured to convert the current into a first voltage, an amplifier configured to generate an output voltage by amplifying a voltage level of the first voltage, at least one comparator configured to identify whether an event occurs based on comparing the output voltage with at least one threshold voltage, and generate an event signal based on identifying that the event occurs, and at least one counter configured to receive the event signal from the at least one comparator, obtain a count value by counting the event signal as information about an amount of change in illumination, and transmit output data comprising the count value.

A vision sensor and an operating method of the vision sensor are provided. The vision sensor includes a pixel array including a plurality of pixels arranged in a form of a matrix; and a bias voltage generation circuit configured to provide a test bias voltage to the pixel array, wherein each of the plurality of pixels includes a sensing circuit configured to sense light and generate a first output voltage, wherein the first output voltage changes as the test bias voltage changes within a specific frame.

Vision sensor including a voltage generation circuit for outputting a test bias voltage to a transistor and operating method thereof

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Hwaseong-si, South Korea

Junseok Kim