Samsung Electronics Co., Ltd.

Yonsei University

Seog Heon Ham

Dong Hun Lee

Kwi Sung Yoo

Wun-Ki Jung

Min Ho Kwon

Jin Ho Seo

Yu Jin Park

Seung Hyun Lim

Jae Hong Kim

Han Vit Yang

Gunhee Han

Han Kook Cho

Youngcheol Chae

Jae Cheol Yun

Sung Ho Suh

In Hee Lee

Tae Chan Kim

Moo Young Kim

Kwang Hyun Lee

Se Jun Kim

Yong Kyun Lim

Young Tae Jang

Byung Jo Kim

Kyo Jin Choo

Sin-hwan Lim

Ji Min Cheon

Gun Hee Han

Jimin Cheon

Jin Woo Kim

Shuichi Shimokawa

Kyung-min Kim

Kyoung Min Koh

Hyeok Jong Lee

Jeong Heum Lee

Young Kyun Jeong

Jin Min Cheon

Ji Hun Shin

Jae Jin Jung

Yun Jung Kim

Woo Seok Choi

Jeonghwan Lee

Se Hyeon Kang

Dong Wook Won

Jin Hun Shin

Min Ji Hwang

Jin Uk Jeon

Wun Ki Jung

Kun Hee Cho

An image sensor and an image processing system including the same are provided. The image sensor includes a pixel array including a plurality of pixels each connected to one of first through m-th column lines to output a pixel signal, where 'm' is an integer of at least 2; analog-to-digital converters each configured to receive the pixel signal corresponding to one of the first through m-th column lines, to compare the pixel signal with a ramp signal, and to convert the pixel signal to a digital pixel signal; and a blocking circuit connected to an input terminal of at least one of the analog-to-digital converters to block an influence of an operation of others among the analog-to-digital converters.

Image sensor for improving linearity of analog-to-digital converter and image processing system including the same

An image sensor includes a pixel array including a plurality of pixel units, and a controller configured to generate a light control signal for controlling light reflected from an object to expose the plurality of pixel units to the light at least twice during generation of an image frame.

Image sensor and electronic apparatus including the same

An image sensor includes a pixel array and N analog-to-digital converters (ADCs). The pixel array includes N pixels arranged in each of a plurality of rows, and each of the N pixels include M photoelectric conversion elements. At least one of the N ADCs are shared by at least one of the M photoelectric conversion elements included in each of the N pixels.

Image sensor, data processing system including the same

An image sensor includes a pixel array including first to fourth pixels having an R, G, and B Bayer pattern. An analog-to-digital converter (ADC) block converts a pixel signal of each of the first to fourth pixels into a digital pixel signal. At least one among the first to fourth pixels includes two photo diodes separated in a first direction, and at least one other of the first to fourth pixels includes two photo diodes separated in a second direction which is different from the first direction.

Image sensor including auto-focusing pixel and image processing system including the same

An image sensor for reducing channel variation and an image processing system including the same. The image sensor includes first to mpixels (m&#x2267;2), each of which is connected to a corresponding column line from among first to mcolumn lines and is configured to output a respective pixel signal.' The image sensor further includes first to mbias circuits, each of which is connected to a corresponding column line from among the first to mcolumn lines and is configured to fix a voltage of the corresponding column line to a bias voltage when a column line-specific pixel is not selected to output the respective pixel signal. An analog-to-digital converter in the image sensor is configured to convert the pixel signals into digital signals.

Image sensor for reducing channel variation and image processing system including the same

A method of operating an image processing system includes storing differences between first analog pixel signals and second analog pixel signals and converting the stored differences to one-bit digital signals, the first analog pixel signals being output from a plurality of pixels and corresponding to a previous frame, and the second analog pixel signals being output from the plurality of pixels and corresponding to a current frame.

Image sensor, operating method thereof, and system including same

An image sensor includes a first column pair and a second column pair among a plurality of columns of a pixel array, an analog-to-digital converter pair, and a switch arrangement circuit configured to connect the first column pair with the analog-to-digital converter pair in response to first switch control signals such that two rows among a plurality of rows in the pixel array are read during a single access time.

Image sensor and system including the same

An analog-to-digital converter includes a gain amplification unit configured to receive a pixel signal at a first node and to amplify a gain of the pixel signal, a first capacitor connected between the first node and a second node, an amplifier configured to receive and amplify a signal output from the gain amplification unit and the first capacitor, and a conversion circuit configured to convert an output signal of the amplifier to a digital signal based on a reference signal and output the digital signal as a first output signal.

Analog-to-digital converter, image sensor including the same, and image processing device including the image sensor

One embodiment of an analog-to-digital converter includes at least one comparator and a restriction circuit. The comparator has first and second input nodes and a connection node. The connection node is one of an internal node and an output node of the comparator. The restriction circuit is electrically connected to the connection node, and the restriction circuit is configured to restrict a voltage of the connection node.

Analog-to-digital conversion circuit, and image sensor including the same

A data sampler and a photo detecting apparatus compensate a reference signal with offset information measured from a unit pixel, and compare an offset-compensated reference signal with a data signal, thereby minimizing the impact of an offset occurring with an increase of gain in the data sampler.

Data sampler, data sampling method, and photo detecting apparatus including data sampler that minimizes the effect of offset

A programmable gain amplifier includes a sampling circuit, a source follower, a first capacitor and an error amplifier. The sampling circuit is configured to perform correlated double sampling on an input signal using a reference voltage. The first capacitor is connected between the sampling circuit and the source follower. The error amplifier is connected between an input terminal of the source follower and an output terminal of the source follower. The error amplifier is configured to reset a voltage of the output terminal of the source follower to the reference voltage during a source follower reset operation.

Programmable gain amplifier and devices including the same

Image sensors include an array of image sensor pixels therein. This array of image sensor pixels includes a first focus detection pixel and at least a first color pixel. A switching network is provided, which is electrically coupled to the array. This switching network may be configured to generate a first mixed image signal by electronically mixing a focus detection signal generated by the first focus detection pixel with at least one color pixel signal generated by the at least a first color pixel. The first focus detection pixel can be a color-blind pixel, which may include a light-blocking shield mask therein.

Image systems and sensors having focus detection pixels therein

Growing community of inventors

Suwon-si, South Korea

Seog Heon Ham