Patents by Inventor Naoki Kawazu

Naoki Kawazu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11025846
    Abstract: [Object] To make it possible to detect, in the case where abnormality has occurred in at least a part of the pixels, the abnormality for each of the pixels.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 1, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Naoki Kawazu, Atsushi Suzuki, Junichiro Azami, Motohashi Yuichi
  • Publication number: 20210152768
    Abstract: An imaging system according to the present disclosure includes: an imaging device that is mounted in a vehicle, and captures and generates an image of a peripheral region of the vehicle; and a processing device that is mounted in the vehicle, and executes processing related to a function of controlling the vehicle on the basis of the image. The imaging device includes: a first control line, a first voltage generator that applies a first voltage to the first control line, a first signal line, a plurality of pixels that applies a pixel voltage to the first signal line, a first dummy pixel that applies a voltage corresponding to the first voltage of the first control line to the first signal line in a first period, a converter including a first converter that performs AD conversion on the basis of a voltage of the first signal line in the first period to generate a first digital code, and a diagnosis section that performs diagnosis processing on the basis of the first digital code.
    Type: Application
    Filed: October 2, 2020
    Publication date: May 20, 2021
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Naoki Kawazu, Atsushi Suzuki, Junichiro Azami, Yuichi Motohashi
  • Patent number: 10992889
    Abstract: A first pixel comprises a first transfer transistor, a first reset transistor, a first amplifier transistor and a first select transistor. The first transfer transistor has a first terminal coupled to a reference signal generation circuit. The first reset transistor has a first terminal coupled to the reference signal generation circuit. The first amplifier transistor has a gate coupled to a second terminal of the first reset transistor and a second terminal of the first transfer transistor. The first select transistor is coupled to the first amplifier transistor. A second pixel comprises a first photoelectric conversion element, a second transfer transistor coupled to the first photoelectric conversion element, a second reset transistor configured to receive a first predetermined voltage, a second amplifier transistor coupled to the second transfer transistor and the second reset transistor, and a second select transistor coupled to the second amplifier transistor.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: April 27, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Naoki Kawazu, Motonobu Torii, Motohashi Yuichi, Atsushi Suzuki, Junichiro Azami
  • Publication number: 20210112213
    Abstract: The present disclosure relates to an imaging apparatus and an imaging method, a camera module, and an electronic apparatus that are capable of detecting a failure in an imaging device having a structure in which a plurality of substrates are stacked. The timing at which a row drive unit provided in a second substrate outputs a control signal for controlling accumulation and reading of pixel signals in a pixel array provided in a first substrate is compared with the timing at which the control signal output from the row drive unit is detected after passing through the pixel array. Depending on whether or not the timings coincides with each other, a failure is detected. The present disclosure can be applied to an imaging apparatus mounted on a vehicle.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Takumi Oka, Atsushi Suzuki, Naoki Kawazu
  • Publication number: 20210041305
    Abstract: To obtain an imaging device that can improve temperature detection accuracy. An imaging device of the present disclosure includes a processing unit formed on a first semiconductor substrate and capable of performing predetermined image processing on the basis of image data obtained by an imaging unit, a temperature sensor formed on the first semiconductor substrate and capable of generating a detection signal according to a temperature, and a first pad electrode formed on the first semiconductor substrate and electrically insulated from a circuit formed on the first semiconductor substrate.
    Type: Application
    Filed: January 23, 2019
    Publication date: February 11, 2021
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Naoki Kawazu, Keita Sasaki, Takumi Oka, Mohammad Munir Haque, Nobuhiko Fujimori, Makoto Satou, Masahiro Baba, Satoshi Yamamoto, Yuichi Motohashi, Atsushi Suzuki
  • Publication number: 20200412950
    Abstract: An imaging device according to the present disclosure includes: an imaging unit configured to perform an imaging operation; a data generator configured to generate first power supply voltage data corresponding to a first power supply voltage; and a flag generation section configured to generate a flag signal for the first power supply voltage by comparing the first power supply voltage data and first reference data. The first power supply voltage is supplied to the imaging unit.
    Type: Application
    Filed: February 5, 2019
    Publication date: December 31, 2020
    Inventors: NAOKI KAWAZU, KEITA SASAKI, TAKUMI OKA, YUICHI MOTOHASHI, ATSUSHI SUZUKI
  • Publication number: 20200412993
    Abstract: An imaging device includes an imaging unit configured to generate image data on the basis of a first power voltage; an image processing unit configured to perform image processing on the image data on the basis of a second power voltage; a reference voltage generating unit configured to generate a first reference voltage on the basis of the first power voltage; and a first flag generating unit configured to generate a first flag signal for the second power voltage on the basis of a comparison of the second power voltage and the first reference voltage and configured to output the first flag signal.
    Type: Application
    Filed: January 31, 2019
    Publication date: December 31, 2020
    Inventors: Naoki KAWAZU, Mohammad Munir HAQUE, Yuichi MOTOHASHI, Atsushi SUZUKI
  • Publication number: 20200404204
    Abstract: An imaging device according to the present disclosure includes: a plurality of pixels each including a first light-receiving element and a second light-receiving element, the plurality of pixels including a first pixel; a generating section that is able to generate a first detection value on a basis of a light-receiving result by the first light-receiving element of each of the plurality of pixels, and is able to generate a second detection value on a basis of a light-receiving result by the second light-receiving element of each of the plurality of pixels; and a diagnosis section that is able to perform a diagnosis processing on a basis of a detection ratio that is a ratio between the first detection value and the second detection value in the first pixel.
    Type: Application
    Filed: October 15, 2018
    Publication date: December 24, 2020
    Inventors: NAOKI KAWAZU, KEITA SASAKI, TAKUMI OKA, MOHAMMAD MUNIR HAQUE, YUICHI MOTOHASHI, ATSUSHI SUZUKI
  • Patent number: 10819928
    Abstract: An imaging system includes an imaging apparatus that is mounted on a vehicle and generates an image by imaging an area around the vehicle, and a processing apparatus that is mounted on the vehicle. The imaging apparatus includes a plurality of pixels. A control unit controls exposure by each of the plurality of pixels, and a processing unit executes a predetermined test. The control unit controls exposure so that reading of a pixel signal is started in a second period after the completion of reading of a pixel signal in a first period. The processing unit executes a predetermined test in a third period, the third period is between the reading of the pixel signal in the first period and the reading of the pixel signal in the second period. The processing apparatus restricts a function of controlling the vehicle based on a result of the predetermined test.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: October 27, 2020
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Naoki Kawazu, Atsushi Suzuki, Junichiro Azami, Motohashi Yuichi
  • Publication number: 20200322597
    Abstract: In one example, an imaging device including a plurality of pixel circuits, a first control line, a second control line, a first voltage supply line, a second voltage supply line, a first light-receiving element, and a diagnosis unit is disclosed. The pixel circuits each include a first terminal, a second terminal, a third terminal, an accumulation unit, a first transistor, a second transistor, and an output unit. The first transistor is couples the third terminal to the accumulation unit on the basis of a voltage of the first terminal. The second transistor supplies a predetermined voltage to the accumulation unit on the basis of a voltage of the second terminal. The output unit outputs a signal corresponding to a voltage in the accumulation unit.
    Type: Application
    Filed: November 7, 2018
    Publication date: October 8, 2020
    Inventors: Takumi Oka, Naoki Kawazu, Atsushi Suzuki
  • Patent number: 10785435
    Abstract: An imaging system includes: an imaging device and a processing device mounted in a vehicle. The imaging device includes: a first pixel coupled to a first signal line, a second pixel coupled to a second signal line, the second signal line is different from the first signal line, a first latch that is coupled to the first signal line, and stores a first digital code, a second latch that is coupled to the second signal line, is adjacent to the first latch, and stores a second digital code, a transfer section that transfers digital codes outputted from the first latch and the second latch, and a diagnosis section that performs diagnosis processing on the basis of the digital codes transferred from the first latch and the second latch. The processing device restricts the function of controlling the vehicle on the basis of a result of the diagnosis processing.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: September 22, 2020
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Naoki Kawazu, Atsushi Suzuki, Junichiro Azami, Yuichi Motohashi
  • Publication number: 20200296309
    Abstract: The present disclosure relates to an imaging apparatus and an imaging method, a camera module, and an electronic apparatus that are capable of detecting a failure in an imaging device having a structure in which a plurality of substrates are stacked. The timing at which a row drive unit provided in a second substrate outputs a control signal for controlling accumulation and reading of pixel signals in a pixel array provided in a first substrate is compared with the timing at which the control signal output from the row drive unit is detected after passing through the pixel array. Depending on whether or not the timings coincides with each other, a failure is detected. The present disclosure can be applied to an imaging apparatus mounted on a vehicle.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Inventors: Takumi Oka, Atsushi Suzuki, Naoki Kawazu
  • Publication number: 20200186733
    Abstract: The present disclosure relates to an imaging apparatus and an imaging method, a camera module, and an electronic apparatus that are capable of detecting a failure in an imaging device having a structure in which a plurality of substrates are stacked. The timing at which a row drive unit provided in a second substrate outputs a control signal for controlling accumulation and reading of pixel signals in a pixel array provided in a first substrate is compared with the timing at which the control signal output from the row drive unit is detected after passing through the pixel array. Depending on whether or not the timings coincides with each other, a failure is detected. The present disclosure can be applied to an imaging apparatus mounted on a vehicle.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Takumi Oka, Atsushi Suzuki, Naoki Kawazu
  • Patent number: 10666881
    Abstract: The present technology relates to a solid-state image sensor and an electronic device that can expand a dynamic range while suppressing degradation of image quality. A solid-state image sensor includes a pixel unit in which basic pattern pixel groups are arranged, each of the basic pattern pixel groups having output pixels of a plurality of colors arranged according to a predetermined pattern, the output pixel being a pixel based on an output unit of a pixel signal, the output pixel of at least one color among the output pixels having three or more types of sizes, and a signal processing unit configured to perform synthesis processing for a plurality of the pixel signals from a plurality of the output pixels having a same color and different sizes. The present technology can be applied to, for example, a CMOS image sensor.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: May 26, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Kazuaki Kaneko, Yoshinori Takagi, Katsumi Yamagishi, Naoki Kawazu
  • Patent number: 10659707
    Abstract: The present disclosure relates to an imaging apparatus and an imaging method, a camera module, and an electronic apparatus that are capable of detecting a failure in an imaging device having a structure in which a plurality of substrates are stacked. The timing at which a row drive unit provided in a second substrate outputs a control signal for controlling accumulation and reading of pixel signals in a pixel array provided in a first substrate is compared with the timing at which the control signal output from the row drive unit is detected after passing through the pixel array. Depending on whether or not the timings coincides with each other, a failure is detected. The present disclosure can be applied to an imaging apparatus mounted on a vehicle.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 19, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takumi Oka, Atsushi Suzuki, Naoki Kawazu
  • Publication number: 20200014872
    Abstract: An imaging system according to the present disclosure includes: an imaging device that is mounted in a vehicle, and captures and generates an image of a peripheral region of the vehicle; and a processing device that is mounted in the vehicle, and executes processing related to a function of controlling the vehicle on the basis of the image. The imaging device includes: a first control line, a first voltage generator that applies a first voltage to the first control line, a first signal line, a plurality of pixels that applies a pixel voltage to the first signal line, a first dummy pixel that applies a voltage corresponding to the first voltage of the first control line to the first signal line in a first period, a converter including a first converter that performs AD conversion on the basis of a voltage of the first signal line in the first period to generate a first digital code, and a diagnosis section that performs diagnosis processing on the basis of the first digital code.
    Type: Application
    Filed: January 15, 2018
    Publication date: January 9, 2020
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Naoki Kawazu, Atsushi Suzuki, Junichiro Azami, Motohashi Yuichi
  • Publication number: 20200014874
    Abstract: The present technology relates to an image pickup element, a control method, and an image pickup device which realize easier and more diversified data output. In one aspect of the present technology, a plurality of signal lines for transmitting a pixel signal read from a pixel is allocated to each column, and different reading modes of the pixel signals are respectively allocated to the signal lines of each column. Regarding each column of the pixel array connected to the pixel corresponding to the mode, the pixel signal is read from the pixel connected to the signal line corresponding to the reading mode of the pixel signal in the mode, and the read pixel signal is transmitted via the signal line. The present technology is applied to, for example, an image pickup element and an image pickup device.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Applicant: SONY CORPORATION
    Inventors: Naoki KAWAZU, Atsushi SUZUKI, Takashi SHOJI, Masashi AKAMATSU, Nobutaka SHIMAMURA, Hayato WAKABAYASHI, Yuuki YAMAGATA, Norihiro NIKAI, Tohru KIKAWADA, Takumi OKA, Toshiki KAINUMA
  • Publication number: 20190394414
    Abstract: [Object] To make it possible to more efficiently perform various tests for detecting abnormality.
    Type: Application
    Filed: November 7, 2017
    Publication date: December 26, 2019
    Inventors: NAOKI KAWAZU, ATSUSHI SUZUKI, JUNICHIRO AZAMI, MOTOHASHI YUICHI
  • Patent number: 10516859
    Abstract: The present technology relates to a solid-state image sensor and an electronic device that can expand a dynamic range while suppressing degradation of image quality. A solid-state image sensor includes a pixel unit in which basic pattern pixel groups are arranged, each of the basic pattern pixel groups having output pixels of a plurality of colors arranged according to a predetermined pattern, the output pixel being a pixel based on an output unit of a pixel signal, the output pixel of at least one color among the output pixels having three or more types of sizes, and a signal processing unit configured to perform synthesis processing for a plurality of the pixel signals from a plurality of the output pixels having a same color and different sizes. The present technology can be applied to, for example, a CMOS image sensor.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: December 24, 2019
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Kazuaki Kaneko, Yoshinori Takagi, Katsumi Yamagishi, Naoki Kawazu
  • Publication number: 20190387188
    Abstract: [Object] To make it possible to detect, in the case where abnormality has occurred in at least a part of the pixels, the abnormality for each of the pixels.
    Type: Application
    Filed: November 7, 2017
    Publication date: December 19, 2019
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Naoki Kawazu, Atsushi Suzuki, Junichiro Azami, Yuichi Motohashi