公开(公告)号：US20230039905A1

公开(公告)日：2023-02-09

申请号：US17812253

申请日：2022-07-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Seiichirou Sakai

IPC: H04N5/3745 ,  H04N5/378

Abstract: A photoelectric conversion device may operate in a first to third driving modes. In the first driving mode in which a correction value is acquired, an analog-to-digital conversion unit compares a first analog signal with a reference signal to acquire the correction value. In the second driving mode in which a pixel signal is read, a reading condition is set based on a result of comparing the pixel signal with a threshold signal. In the third driving mode, at least one of the first analog signal and the threshold signal is controlled to reduce a difference between a potential of the first analog signal and a potential of the threshold signal.

公开(公告)号：US11552647B2

公开(公告)日：2023-01-10

申请号：US17511252

申请日：2021-10-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： Seiichirou Sakai ,  Kazuo Yamazaki ,  Hiroaki Kameyama

IPC: H04N5/3745 ,  H03M1/46 ,  H03M1/18 ,  H03M1/56 ,  H04N5/378

Abstract: A ramp signal output circuit includes a first reference current source transistor to which a current is supplied from a current source, a first line connecting a gate of the first reference current source transistor and a gate of a first current source transistor, a branch point where a second line branches from the first line, a first ramp signal generation unit connected to the first current source transistor, and a second ramp signal generation unit connected to a second current source transistor, wherein the second line is connected to a gate of the second current source transistor.

公开(公告)号：US11115608B2

公开(公告)日：2021-09-07

申请号：US16826614

申请日：2020-03-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Seiichirou Sakai ,  Hiroaki Kameyama ,  Kazuo Yamazaki ,  Koichiro Iwata ,  Kohichi Nakamura

IPC: H04N5/341 ,  H03M1/34 ,  H04N5/3745 ,  H04N5/378 ,  H03M1/56

Abstract: According to the present disclosure, column circuits operate selectively in a first drive mode to output a comparison signal or a second drive mode to acquire a correction value of a first reference signal and a second reference signal, and a selector circuit of a second column circuit selects the same reference signal out of the first reference signal and the second reference signal in the first drive mode and the second drive mode.

公开(公告)号：US08796609B2

公开(公告)日：2014-08-05

申请号：US13895045

申请日：2013-05-15

Applicant: Canon Kabushiki Kaisha

Inventor： Yu Arishima ,  Yasuhiro Kawabata ,  Hideaki Takada ,  Seiichirou Sakai ,  Toru Koizumi

IPC: H01L27/146

CPC classification number: H01L27/14831 ,  H01L27/14603

Abstract: A photoelectric conversion apparatus of the present invention includes: a plurality of photoelectric conversion elements arranged on a substrate; a transistor for transferring a signal charge; and a plurality of transistors for reading out the signal charge transferred. The plurality of photoelectric conversion elements include a first photoelectric conversion element and a second photoelectric conversion element adjacent to each other. The photoelectric conversion apparatus of the present invention includes: a first semiconductor region having a first conductivity type arranged between the first photoelectric conversion element and the second photoelectric conversion element; and a second semiconductor region having the first conductivity type that is arranged on a region where the plurality of transistors are arranged and that has a width larger than that of the first semiconductor region of the first conductivity type.

Abstract translation: 本发明的光电转换装置包括：布置在基板上的多个光电转换元件; 用于传送信号电荷的晶体管; 以及用于读出传送的信号电荷的多个晶体管。 多个光电转换元件包括彼此相邻的第一光电转换元件和第二光电转换元件。 本发明的光电转换装置包括：具有布置在第一光电转换元件和第二光电转换元件之间的具有第一导电类型的第一半导体区域; 以及具有第一导电类型的第二半导体区域，其布置在多个晶体管布置的区域上，并且其宽度大于第一导电类型的第一半导体区域的宽度。

公开(公告)号：US11575868B2

公开(公告)日：2023-02-07

申请号：US16892044

申请日：2020-06-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroaki Kameyama ,  Seiichirou Sakai ,  Kazuo Yamazaki

IPC: H04N5/359 ,  H04N5/374 ,  H04N5/378 ,  H04N13/122 ,  B60R11/04 ,  B60K35/00 ,  H04N13/225

Abstract: A photoelectric conversion apparatus includes a control unit configured to change a voltage of an input node from a first voltage toward a predetermined voltage during a predetermined time period after the voltage of the input node changes to the first voltage and before the voltage of the input node changes to a second voltage. A method of driving the photoelectric conversion apparatus includes controlling changing of the voltage of the input node from the first voltage toward the predetermined voltage during the predetermined time period.

公开(公告)号：US20180006071A1

公开(公告)日：2018-01-04

申请号：US15622595

申请日：2017-06-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Taro Kato ,  Akira Okita ,  Takehito Okabe ,  Takeru Ohya ,  Kosuke Asano ,  Koichiro Iwata ,  Seiichirou Sakai

IPC: H01L27/146 ,  G06T7/536 ,  H04N5/355 ,  H04N7/18 ,  H04N5/378

CPC classification number: H01L27/14625 ,  G06T7/536 ,  G06T2207/10004 ,  G06T2207/30252 ,  H01L27/14621 ,  H01L27/14623 ,  H01L27/14627 ,  H04N5/355 ,  H04N5/361 ,  H04N5/374 ,  H04N5/378 ,  H04N7/183

Abstract: An imaging device includes a pixel region in which a plurality of pixels, each including a photoelectric converter, are arranged, including an effective pixel region, an optical black region covered with a light-shielding film, and a dummy pixel region arranged between the effective pixel region and the optical black region. The pixels arranged in at least the effective pixel region and the optical black region among the plurality of the pixels each include an optical waveguide arranged above the photoelectric converter. The pixels including the optical waveguides are arranged between the effective pixel region and the optical black region so as to be spaced apart from each other by at least a one-pixel pitch.

公开(公告)号：US09762840B2

公开(公告)日：2017-09-12

申请号：US14710084

申请日：2015-05-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazuo Yamazaki ,  Seiichirou Sakai ,  Yu Maehashi

IPC: H04N5/378 ,  H04N5/374 ,  H04N5/341 ,  H04N5/232 ,  H04N5/343 ,  H04N5/369 ,  H04N5/3745

CPC classification number: H04N5/378 ,  H04N5/23212 ,  H04N5/341 ,  H04N5/343 ,  H04N5/3696 ,  H04N5/3741 ,  H04N5/37457

Abstract: In an imaging device including a pixel array in which a plurality of pixels is arranged, each of the pixels including first and second photoelectric conversion units, and a micro lens that collects incident light to the first and second photoelectric conversion units, in a first frame period, a first signal based on a signal electric charge generated in the first photoelectric conversion unit and a second signal based on a signal electric charge generated in at least the second photoelectric conversion unit are read out from a plurality of pixels included in a part of the pixel array, and in a second frame period, a third signal based on the signal electric charges generated in the first and the second photoelectric conversion units is read out from a plurality of pixels included in another part of the pixel array.

公开(公告)号：US09762839B2

公开(公告)日：2017-09-12

申请号：US14951044

申请日：2015-11-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Seiichirou Sakai ,  Hideo Kobayashi ,  Yu Maehashi

IPC: H04N5/376 ,  H04N5/357 ,  H04N5/374

CPC classification number: H04N5/3765 ,  H04N5/357 ,  H04N5/3741

Abstract: An image capturing apparatus includes a plurality of current sources each including a first transistor, a first switch, a second transistor connected to a vertical signal line via the first switch, and a second switch. The gate of the first transistor is connected to a common connecting line, and the gate of the second transistor is connected to the common connecting line via the second switch.

公开(公告)号：US09667901B2

公开(公告)日：2017-05-30

申请号：US14748483

申请日：2015-06-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Seiichirou Sakai ,  Hiroki Hiyama ,  Kazuo Yamazaki

IPC: H04N5/378 ,  H04N5/3745 ,  H04N5/357

CPC classification number: H04N5/378 ,  H04N5/3575 ,  H04N5/3745

Abstract: Provided is an imaging apparatus and an imaging system that can suppress high-brightness darkening phenomenon without preventing achievement of high-speed operation. The imaging apparatus includes: pixels each outputting a signal based on photoelectric conversion to each of signal lines; clip units each having a first transistor for clipping the voltage of each of the signal lines; a holding capacitor having a first electrode connected to a control electrode of the first transistor, and having a second electrode; a shift unit configured to supply, to the second electrodes, a plurality of voltages having values different from each other; and a voltage supplying unit provided separately from the shift unit and supplying a first voltage to the second electrodes.

公开(公告)号：US20180109736A1

公开(公告)日：2018-04-19

申请号：US15728651

申请日：2017-10-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Mie Ishii ,  Seiichirou Sakai

IPC: H04N5/243 ,  H04N5/345 ,  H04N5/361 ,  H04N5/3745 ,  H04N5/376

CPC classification number: H04N5/243 ,  H03M1/56 ,  H04N5/3454 ,  H04N5/361 ,  H04N5/37455 ,  H04N5/3765 ,  H04N5/378

Abstract: An image sensor comprising: a pixel portion that outputs a pixel signal; a setting unit that sets a reference voltage in accordance with a shooting condition; a comparator that compares the reference voltage or one of a plurality of comparison voltages having different slopes which change with time and the pixel signal; a selector that selects one of the plurality of comparison voltages according to a result of the comparison between the reference voltage and the pixel signal by the comparator; and a counter that counts a number of clocks until the selected comparison voltage and the pixel signal become equal while the comparator compares the comparison voltage selected by the selector and the pixel signal.