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1
US10887540B2
Solid-state imaging apparatus, method for driving solid-state imaging apparatus, and electronic equipment
Publication/Patent Number: US10887540B2 Publication Date: 2021-01-05 Application Number: 16/325,277 Filing Date: 2017-08-08 Inventor: Taura, Tadayuki   Assignee: Sony Semiconductor Solutions Corporation   IPC: H04N5/378 Abstract: The present disclosure relates to a solid-state imaging apparatus, a method for driving the solid-state imaging apparatus, and electronic equipment for improving the determination speed of comparators and allowing the comparators to operate faster. A differential input circuit operates on a first power supply voltage and outputs a signal when a voltage of a pixel signal is higher than a voltage of a reference signal. A voltage conversion circuit converts the output signal from the differential input circuit into a signal corresponding to a second power supply voltage. A positive feedback circuit accelerates a transition rate at which a comparison result signal of a comparison in voltage between the pixel signal and the reference signal is inverted. Multiple time code transfer sections each include a shift register that transfer a time code. The present disclosure can be applied, for example, to an imaging apparatus including A/D converters disposed in pixels.
2
EP3503536B1
SOLID-STATE IMAGING DEVICE, DRIVING METHOD THEREFOR, AND ELECTRONIC APPARATUS
Publication/Patent Number: EP3503536B1 Publication Date: 2021-02-24 Application Number: 17843387.6 Filing Date: 2017-08-08 Inventor: Taura, Tadayuki   Assignee: Sony Semiconductor Solutions Corporation   IPC: H04N5/378
3
US10939062B2
Solid-state imaging apparatus and electronic equipment
Publication/Patent Number: US10939062B2 Publication Date: 2021-03-02 Application Number: 16/486,255 Filing Date: 2018-02-26 Inventor: Ogawa, Koji   Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/374 Abstract: The present disclosure relates to a solid-state imaging apparatus and electronic equipment that can reduce power consumption. In an AD converter for each unit pixel or each shared pixel unit, a pixel signal is compared with a reference signal temporally changing. In addition, a magnitude of a pixel signal of a pixel of interest is compared with a magnitude of each of pixel signals of neighboring pixels located in a neighborhood of the pixel of interest using the reference signal, and a result of comparison of the magnitudes is held in a data storage section. The present disclosure can be applied to a back-illuminated solid-state imaging apparatus, for example.
4
US2020228738A1
SOLID-STATE IMAGING APPARATUS AND ELECTRONIC EQUIPMENT
Publication/Patent Number: US2020228738A1 Publication Date: 2020-07-16 Application Number: 16/486,255 Filing Date: 2018-02-26 Inventor: Ogawa, Koji   Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/369 Abstract: The present disclosure relates to a solid-state imaging apparatus and electronic equipment that can reduce power consumption. In an AD converter for each unit pixel or each shared pixel unit, a pixel signal is compared with a reference signal temporally changing. In addition, a magnitude of a pixel signal of a pixel of interest is compared with a magnitude of each of pixel signals of neighboring pixels located in a neighborhood of the pixel of interest using the reference signal, and a result of comparison of the magnitudes is held in a data storage section. The present disclosure can be applied to a back-illuminated solid-state imaging apparatus, for example.
5
US2020067498A1
COMPARATOR, AD CONVERTER, SOLID-STATE IMAGE PICKUP DEVICE, ELECTRONIC DEVICE, METHOD OF CONTROLLING COMPARATOR, DATA WRITING CIRCUIT, DATA READING CIRCUIT, AND DATA TRANSFERRING CIRCUIT
Publication/Patent Number: US2020067498A1 Publication Date: 2020-02-27 Application Number: 16/668,329 Filing Date: 2019-10-30 Inventor: Kikuchi, Hidekazu   Taura, Tadayuki   Sakakibara, Masaki   Assignee: SONY CORPORATION   IPC: H03K5/24 Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state image pickup device, an electronic device, a method of controlling the comparator, a data writing circuit, a data reading circuit, and a data transferring circuit, capable of improving the determining speed of the comparator and reducing power consumption. The comparator includes a differential input circuit configured to operate with a first power supply voltage, the differential input circuit configured to output a signal when an input signal is higher than a reference signal in voltage; a positive feedback circuit configured to operate with a second power supply voltage lower than the first power supply voltage, the positive feedback circuit being configured to accelerate transition speed when a compared result signal indicating a compared result between the input signal and the reference signal in voltage, is inverted, on the basis of the output signal of the differential input circuit; and a voltage conversion circuit configured to convert the output signal of the differential input circuit into a signal corresponding to the second power supply voltage. The present disclosure can be applied to, for example, a comparator of a solid-state image pickup device.
6
KR20190038799A
고체 촬상 장치 및 그 구동 방법, 및 전자 기기
Publication/Patent Number: KR20190038799A Publication Date: 2019-04-09 Application Number: 20197001048 Filing Date: 2017-08-08 Inventor: Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/378 Abstract: 본 개시는, 비교기의 판정 속도를 향상시켜, 고속으로 동작시킬 수 있도록 하는 고체 촬상 장치 및 그 구동 방법, 및 전자 기기에 관한 것이다. 차동 입력 회로는, 제1의 전원 전압으로 동작하고, 화소 신호의 전압이 참조 신호의 전압보다도 높은 때에 신호를 출력한다. 전압 변환 회로는, 차동 입력 회로의 출력 신호를, 제2의 전원 전압에 대응하는 신호로 변환한다. 정귀환 회로는, 전압 변환 회로에 의해 변환된 차동 입력 회로의 출력 신호에 의거하여, 화소 신호와 참조 신호의 전압의 비교 결과를 나타내는 비교 결과 신호가 반전할 때의 천이 속도를 고속화한다. 복수의 시각 코드 전송부 각각은, 시프트 레지스터를 가지며, 시각 코드를 전송한다. 본 개시는, 예를 들면, 화소 내에 AD 변환기를 배치하는 고체 촬상 장치 등에 적용할 수 있다.
7
US2019208151A1
SOLID-STATE IMAGING APPARATUS, METHOD FOR DRIVING SOLID-STATE IMAGING APPARATUS, AND ELECTRONIC EQUIPMENT
Publication/Patent Number: US2019208151A1 Publication Date: 2019-07-04 Application Number: 16/325,277 Filing Date: 2017-08-08 Inventor: Taura, Tadayuki   Assignee: Sony Semiconductor Solutions Corporation   IPC: H04N5/378 Abstract: The present disclosure relates to a solid-state imaging apparatus, a method for driving the solid-state imaging apparatus, and electronic equipment for improving the determination speed of comparators and allowing the comparators to operate faster. A differential input circuit operates on a first power supply voltage and outputs a signal when a voltage of a pixel signal is higher than a voltage of a reference signal. A voltage conversion circuit converts the output signal from the differential input circuit into a signal corresponding to a second power supply voltage. A positive feedback circuit accelerates a transition rate at which a comparison result signal of a comparison in voltage between the pixel signal and the reference signal is inverted. Multiple time code transfer sections each include a shift register that transfer a time code. The present disclosure can be applied, for example, to an imaging apparatus including A/D converters disposed in pixels.
8
EP2482462B1
Data processor, solid-state imaging device, imaging device, and electronic apparatus
Publication/Patent Number: EP2482462B1 Publication Date: 2019-03-27 Application Number: 12002871.7 Filing Date: 2008-10-10 Inventor: Taura, Tadayuki   Assignee: Sony Corporation   IPC: H03K21/08
9
EP3503536A1
SOLID-STATE IMAGING DEVICE, DRIVING METHOD THEREFOR, AND ELECTRONIC APPARATUS
Publication/Patent Number: EP3503536A1 Publication Date: 2019-06-26 Application Number: 17843387.6 Filing Date: 2017-08-08 Inventor: Taura, Tadayuki   Assignee: Sony Semiconductor Solutions Corporation   IPC: H04N5/378 Abstract: The present disclosure relates to a solid-state imaging apparatus, a method for driving the solid-state imaging apparatus, and electronic equipment for improving the determination speed of comparators and allowing the comparators to operate faster. A differential input circuit operates on a first power supply voltage and outputs a signal when a voltage of a pixel signal is higher than a voltage of a reference signal. A voltage conversion circuit converts the output signal from the differential input circuit into a signal corresponding to a second power supply voltage. A positive feedback circuit accelerates a transition rate at which a comparison result signal indicative of the result of a comparison in voltage between the pixel signal and the reference signal is inverted, on the basis of the output signal of the differential input circuit converted by the voltage conversion circuit. Multiple time code transfer sections each include a shift register that transfer a time code. The present disclosure can be applied, for example, to a solid-state imaging apparatus including A/D converters disposed in pixels.
10
JP2019047383A
IMAGING DEVICE AND SOLID IMAGING ELEMENT CONTROL METHOD
Publication/Patent Number: JP2019047383A Publication Date: 2019-03-22 Application Number: 2017169768 Filing Date: 2017-09-04 Inventor: Ono, Toshiaki   Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORP   IPC: H04N5/3745 Abstract: To provide an imaging device for imaging feature amount images in which the image quality of the feature amount images is improved.SOLUTION: The imaging device comprises a plurality of pixel circuits, and a feature amount extracting unit. In this imaging device, each of the plurality of pixel circuits generates an analog signal corresponding to the amount of received light and outputs the analog signal as a pixel signal. Furthermore, the feature amount extracting unit in the imaging device extracts, for each neighboring pixel circuit near a pixel circuit of interest among the plurality of pixel circuits, a feature amount representing by multiple values the magnitude of the difference between the pixel signal from the neighboring pixel circuit and the pixel signal from the pixel circuit of interest.SELECTED DRAWING: Figure 19
11
WO2019044225A1
IMAGING DEVICE AND IMAGING DEVICE CONTROL METHOD
Publication/Patent Number: WO2019044225A1 Publication Date: 2019-03-07 Application Number: 2018026808 Filing Date: 2018-07-18 Inventor: Ono, Toshiaki   Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/3745 Abstract: The purpose of the present invention is to provide an imaging device for imaging feature amount images wherein the image quality of the feature amount images is improved. The imaging device comprises a plurality of pixel circuits, and a feature amount extracting unit. In this imaging device, each of the plurality of pixel circuits generates an analog signal corresponding to the amount of received light and outputs the analog signal as a pixel signal. Furthermore, the feature amount extracting unit in the imaging device extracts, for each neighboring pixel circuit near a pixel circuit of interest among the plurality of pixel circuits, a feature amount representing, by multiple values, the magnitude of the difference between the pixel signal from the neighbor pixel circuit and from the pixel circuit of interest.
12
US10498321B2
Comparator, AD converter, solid-state image pickup device, electronic device, method of controlling comparator, data writing circuit, data reading circuit, and data transferring circuit
Publication/Patent Number: US10498321B2 Publication Date: 2019-12-03 Application Number: 16/058,340 Filing Date: 2018-08-08 Inventor: Kikuchi, Hidekazu   Taura, Tadayuki   Sakakibara, Masaki   Assignee: SONY CORPORATION   IPC: H03M1/50 Abstract: An imaging device for improving the determining speed of the comparator and reducing power consumption. The comparator includes a differential input circuit that operates with a first power supply voltage, the differential input circuit that outputs a signal when an input signal is higher than a reference signal in voltage, a positive feedback circuit that operates with a second power supply voltage lower than the first power supply voltage and accelerates transition speed when a compared result signal indicating a compared result between the input signal and the reference signal in voltage, is inverted, based on the output signal of the differential input circuit, and a voltage conversion circuit that converts the output signal of the differential input circuit into a signal corresponding to the second power supply voltage.
13
US10373990B2
Solid-state imaging element and electronic apparatus with unit pixel regions, a readout circuit for each of the unit pixel regions, and a compensation unit
Publication/Patent Number: US10373990B2 Publication Date: 2019-08-06 Application Number: 15/753,100 Filing Date: 2016-08-12 Inventor: Tochigi, Yasuhisa   Sakakibara, Masaki   Taura, Tadayuki   Assignee: Sony Semiconductor Solutions Corporation   IPC: H04N5/341 Abstract: The present disclosure relates to a solid-state imaging element and an electronic apparatus, in which the number of wires controlling readout can be reduced in a case where a pixel signal of each pixel is read out in a predetermined order for each unit pixel region. The unit pixel region is configured by a plurality of pixels arranged in an array. A readout circuit is provided for each unit pixel region and reads out, in a predetermined order, pixel signals of the plurality of pixels configuring the unit pixel regions. Pixel drive wires, which control readout of the pixels configuring the unit pixel regions adjacent in the vertical direction and having the same readout order, are shared. The present disclosure can be applied to, for example, a CMOS image sensor and the like.
14
US10257452B2
Solid-state image pickup apparatus, signal processing method for a solid-state image pickup apparatus, and electronic apparatus
Publication/Patent Number: US10257452B2 Publication Date: 2019-04-09 Application Number: 15/962,180 Filing Date: 2018-04-25 Inventor: Sakakibara, Masaki   Taura, Tadayuki   Oike, Yusuke   Takatsuka, Takafumi   Kato, Akihiko   Assignee: Sony Corporation   IPC: H04N5/369 Abstract: A solid-state imaging device includes a pixel array section that has at least one pixel with a photoelectric conversion unit and a charge detection unit. A driving section is configured to read out a signal of the pixel, a first portion of said signal being based on signal charge, a second portion of said signal being based on a reset potential. A signal processing section is configured to read out the first portion of the signal as a reference voltage, with the reference voltage being adjusted to cause the first and second portions of the signal to be within an input voltage range.
15
WO2018037902A1
SOLID-STATE IMAGING DEVICE, DRIVING METHOD THEREFOR, AND ELECTRONIC APPARATUS
Publication/Patent Number: WO2018037902A1 Publication Date: 2018-03-01 Application Number: 2017028674 Filing Date: 2017-08-08 Inventor: Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H04N5/378 Abstract: The present disclosure pertains to: a solid-state imaging device that enables high-speed operation by improving the determination speed of a comparator; a driving method therefor; and an electronic apparatus. According to the present disclosure, a differential input circuit operates at a first power supply voltage, and outputs a signal when the voltage of a pixel signal is higher than the voltage of a reference signal. A voltage conversion circuit converts the output signal from the differential input circuit into a signal corresponding to a second power supply voltage. A positive feedback circuit increases the transition speed on the basis of the output signal from the differential input circuit converted by the voltage conversion circuit, when a comparison result signal indicating the result of comparison between the voltage of the pixel signal and the voltage of the reference signal is inverted. Each of a plurality of time code transfer units has a shift register and transfers a time code. The present disclosure can be applied to, for example, a solid-state imaging device in which an AD converter is disposed within each pixel.
16
JP2018148528A
SOLID-STATE IMAGE SENSOR AND ELECTRONIC APPARATUS
Publication/Patent Number: JP2018148528A Publication Date: 2018-09-20 Application Number: 2017044882 Filing Date: 2017-03-09 Inventor: Ogawa, Koji   Taura, Tadayuki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORP   IPC: H04N5/225 Abstract: PROBLEM TO BE SOLVED: To achieve conversion into low power consumption.SOLUTION: An A-D converter for each unit pixel or sharing pixel unit compares a pixel signal to a time-variant reference signal, compares a magnitude relationship of a pixel signal in a noticed pixel and a neighboring pixel positioned in vicinity to the noticed pixel by a reference signal and retains a comparison result of the magnitude relationship in a data storage part. This disclosure can be applied to, for example, a backside illumination type solid-state image sensor.SELECTED DRAWING: Figure 17