Patents by Inventor Tatsuki Nishino

Tatsuki Nishino 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).

  • Publication number: 20200314375
    Abstract: To control an excess bias to an appropriate value in a light detection device. A solid-state image sensor includes a photodiode, a resistor, and a control circuit. In this solid-state image sensor, the photodiode photoelectrically converts incident light and outputs a photocurrent. Furthermore, in the solid-state image sensor, the resistor is connected to a cathode of the photodiode. Furthermore, in the solid-state image sensor, the control circuit supplies a lower potential to an anode of the photodiode as a potential of the cathode of when the photocurrent flows through the resistor is higher.
    Type: Application
    Filed: August 24, 2018
    Publication date: October 1, 2020
    Inventors: Tatsuki Nishino, Hiroki Hiyama, Shizunori Matsumoto, Takahiro Miura, Akihiko Miyanohara, Tomohiro Matsumoto
  • Publication number: 20200295079
    Abstract: An image signal output unit is controlled in accordance with a first control signal indicating either voltage state of an on voltage for causing a conductive state and an off voltage having a polarity different from that of the on voltage, and outputs an analog image signal corresponding to the electric charge held by an electric charge holding unit in the conductive state. A reset unit is controlled in accordance with a second control signal indicating either voltage state of the on voltage and the off voltage, resets the electric charge holding unit in the conductive state, transmits a fluctuation in the off voltage to the electric charge holding unit, and fluctuates the analog image signal. A reference signal generation unit generates a reference signal being a signal serving as a reference used when conversion from an analog image signal output from the image signal output unit into a digital image signal is performed.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 17, 2020
    Inventors: TATSUKI NISHINO, YOSUKE UENO, YUSUKE MORIYAMA, SHIZUNORI MATSUMOTO
  • Publication number: 20200296313
    Abstract: This technology relates to an imaging apparatus and an imaging system for improving the accuracy of distance measurement performed by use of SPADs. The imaging apparatus includes a pixel array section having pixel sections arrayed therein. Each pixel section includes: an SPAD (single photon avalanche photodiode); a resistance component configured to be connected serially with the SPAD; an output section configured to output a light reception signal indicating photon incidence on the SPAD; and a pulse generation section configured to output a pulse signal in synchronism with the output of the light reception signal.
    Type: Application
    Filed: October 17, 2018
    Publication date: September 17, 2020
    Applicant: Sony Semiconductor Solutions Corporation
    Inventor: Tatsuki Nishino
  • Patent number: 10707264
    Abstract: To prevent a decline in image quality by reducing a fluctuation in an image signal that is based on a fluctuation in a voltage of a negative voltage power source. An image signal output unit is controlled in accordance with a first control signal indicating either voltage state of an on voltage for causing a conductive state and an off voltage having a polarity different from that of the on voltage, and outputs an analog image signal corresponding to the electric charge held by an electric charge holding unit in the conductive state. A reset unit is controlled in accordance with a second control signal indicating either voltage state of the on voltage and the off voltage, resets the electric charge holding unit in the conductive state, transmits a fluctuation in the off voltage to the electric charge holding unit, and fluctuates the analog image signal.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 7, 2020
    Assignee: SONY CORPORATION
    Inventors: Tatsuki Nishino, Yosuke Ueno, Yusuke Moriyama, Shizunori Matsumoto
  • Patent number: 10694124
    Abstract: The present technique relates to an image pickup element and an electronic apparatus which enable a higher-quality image to be obtained. An image pickup element includes an input sense portion configured to produce a noise correction signal portion includes a first transistor and a second transistor configuring a current mirror circuit, a switch provided between a gate of the first transistor and a gate of the second transistor, and a capacitive element one electrode of which is connected between the switch and the gate of the second transistor on an output side of the current mirror circuit, and the other electrode of which is connected to the predetermined power source.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 23, 2020
    Assignee: Sony Corporation
    Inventors: Tatsuki Nishino, Yosuke Ueno, Yusuke Moriyama, Shizunori Matsumoto
  • Publication number: 20190288029
    Abstract: To prevent a decline in image quality by reducing a fluctuation in an image signal that is based on a fluctuation in a voltage of a negative voltage power source. An image signal output unit is controlled in accordance with a first control signal indicating either voltage state of an on voltage for causing a conductive state and an off voltage having a polarity different from that of the on voltage, and outputs an analog image signal corresponding to the electric charge held by an electric charge holding unit in the conductive state. A reset unit is controlled in accordance with a second control signal indicating either voltage state of the on voltage and the off voltage, resets the electric charge holding unit in the conductive state, transmits a fluctuation in the off voltage to the electric charge holding unit, and fluctuates the analog image signal.
    Type: Application
    Filed: June 9, 2017
    Publication date: September 19, 2019
    Inventors: TATSUKI NISHINO, YOSUKE UENO, YUSUKE MORIYAMA, SHIZUNORI MATSUMOTO
  • Patent number: 10237502
    Abstract: To reduce fluctuations in image signals when the voltage of a negative power supply supplied to pixels changes. A pixel operates based on a first ground potential applied to a first ground line and outputs an analog image signal according to emitted light. An analog-digital converter operates based on a second ground potential applied to a second ground line, the second ground potential higher than the first ground potential, and converts the analog image signal into a digital image signal based on a reference voltage as a standard for the conversion. A reference voltage generation unit operates based on the second ground potential and generates the reference voltage. A reference voltage correction unit corrects the reference voltage generated according to a change in the first ground potential and supplies the reference voltage to the analog-digital converter.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 19, 2019
    Assignee: Sony Corporation
    Inventors: Tatsuki Nishino, Yosuke Ueno, Yusuke Ikeda, Yusuke Moriyama, Shizunori Matsumoto
  • Publication number: 20190068902
    Abstract: The present technique relates to an image pickup element and an electronic apparatus which enable a higher-quality image to be obtained. An image pickup element includes an input sense portion configured to produce a noise correction signal for correcting a noise generated in a predetermined power source. The input sense portion includes a first transistor and a second transistor configuring a current mirror circuit, a switch provided between a gate of the first transistor and a gate of the second transistor, and a capacitive element one electrode of which is connected between the switch and the gate of the second transistor on an output side of the current mirror circuit, and the other electrode of which is connected to the predetermined power source.
    Type: Application
    Filed: March 3, 2017
    Publication date: February 28, 2019
    Applicant: Sony Corporation
    Inventors: Tatsuki NISHINO, Yosuke UENO, Yusuke MORIYAMA, Shizunori MATSUMOTO
  • Patent number: 10194107
    Abstract: To reduce fluctuations in image signals when the voltage of a negative power supply supplied to pixels changes. A pixel operates based on a first ground potential applied to a first ground line and outputs an analog image signal according to emitted light. An analog-digital converter operates based on a second ground potential applied to a second ground line, the second ground potential higher than the first ground potential, and converts the analog image signal into a digital image signal based on a reference voltage as a standard for the conversion. A reference voltage generation unit operates based on the second ground potential and generates the reference voltage. A reference voltage correction unit corrects the reference voltage generated according to a change in the first ground potential and supplies the reference voltage to the analog-digital converter.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 29, 2019
    Assignee: Sony Corporation
    Inventors: Tatsuki Nishino, Yosuke Ueno, Yusuke Ikeda, Yusuke Moriyama, Shizunori Matsumoto
  • Patent number: 9959836
    Abstract: An image output apparatus includes a light emitting unit, a power supplying unit, and a control unit. The light emitting unit is configured to emit a laser beam. The power supplying unit is configured to supply power to the light emitting unit at a predetermined voltage. The control unit is configured to control the power supplying unit to supply the power to the light emitting unit in a predetermined period at the voltage associated with a peak light emission amount of the light emitting unit in image data for the predetermined period.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 1, 2018
    Assignee: Sony Corporation
    Inventors: Tatsuki Nishino, Susumu Seino
  • Publication number: 20180103223
    Abstract: To reduce fluctuations in image signals when the voltage of a negative power supply supplied to pixels changes. A pixel operates based on a first ground potential applied to a first ground line and outputs an analog image signal according to emitted light. An analog-digital converter operates based on a second ground potential applied to a second ground line, the second ground potential higher than the first ground potential, and converts the analog image signal into a digital image signal based on a reference voltage as a standard for the conversion. A reference voltage generation unit operates based on the second ground potential and generates the reference voltage. A reference voltage correction unit corrects the reference voltage generated according to a change in the first ground potential and supplies the reference voltage to the analog-digital converter.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 12, 2018
    Inventors: Tatsuki NISHINO, Yosuke UENO, Yusuke IKEDA, Yusuke MORIYAMA, Shizunori MATSUMOTO
  • Publication number: 20180084211
    Abstract: To reduce fluctuations in image signals when the voltage of a negative power supply supplied to pixels changes. A pixel operates based on a first ground potential applied to a first ground line and outputs an analog image signal according to emitted light. An analog-digital converter operates based on a second ground potential applied to a second ground line, the second ground potential higher than the first ground potential, and converts the analog image signal into a digital image signal based on a reference voltage as a standard for the conversion. A reference voltage generation unit operates based on the second ground potential and generates the reference voltage. A reference voltage correction unit corrects the reference voltage generated according to a change in the first ground potential and supplies the reference voltage to the analog-digital converter.
    Type: Application
    Filed: April 13, 2016
    Publication date: March 22, 2018
    Inventors: Tatsuki NISHINO, Yosuke UENO, Yusuke IKEDA, Yusuke MORIYAMA, Shizunori MATSUMOTO
  • Patent number: 9105219
    Abstract: A light emitting element drive device includes: a light emitting section having a light emitting element; output capacitance capable of storing power supplied to the light emitting section; a driver connected between the light emitting section and a reference potential and including a switch section whose conductive state is controlled by a pulse-like lighting signal depending on magnitude of a load current and a constant current source section connected in series to the switch section; and a power supply controller being a power supply that provides drive power to the light emitting section and including a function to adjust an output current supplied to the output capacitance. The power supply controller changes the supply amount of the output current for the light emitting section from the power supply controller based on load current information that is necessary peak power of the light emitting section.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 11, 2015
    Assignee: Sony Corporation
    Inventors: Tatsuki Nishino, Yasushi Katayama, Makoto Kobori, Yoshiki Oyama
  • Publication number: 20140125715
    Abstract: An image output apparatus includes a light emitting unit, a power supplying unit, and a control unit. The light emitting unit is configured to emit a laser beam. The power supplying unit is configured to supply power to the light emitting unit at a predetermined voltage. The control unit is configured to control the power supplying unit to supply the power to the light emitting unit in a predetermined period at the voltage associated with a peak light emission amount of the light emitting unit in image data for the predetermined period.
    Type: Application
    Filed: October 25, 2013
    Publication date: May 8, 2014
    Applicant: Sony Corporation
    Inventors: Tatsuki Nishino, Susumu Seino
  • Publication number: 20130249972
    Abstract: A light emitting element drive device includes: a light emitting section having a light emitting element; output capacitance capable of storing power supplied to the light emitting section; a driver connected between the light emitting section and a reference potential and including a switch section whose conductive state is controlled by a pulse-like lighting signal depending on magnitude of a load current and a constant current source section connected in series to the switch section; and a power supply controller being a power supply that provides drive power to the light emitting section and including a function to adjust an output current supplied to the output capacitance. The power supply controller changes the supply amount of the output current for the light emitting section from the power supply controller based on load current information that is necessary peak power of the light emitting section.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 26, 2013
    Applicant: SONY CORPORATION
    Inventors: Tatsuki Nishino, Yasushi Katayama, Makoto Kobori, Yoshiki Oyama
  • Patent number: 8427078
    Abstract: A light-emitting element driving device includes: a plurality of light emitters; a power supply; a plurality of current control transistors; a plurality of constant-current circuits; a voltage selecting circuit; a control circuit; and a voltage controller.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: April 23, 2013
    Assignee: Sony Corporation
    Inventors: Takahiro Naito, Yasushi Katayama, Tatsuki Nishino
  • Patent number: 8305785
    Abstract: Power source apparatus utilizing a synchronous rectification system including a main transformer having a primary coil, and two secondary coils connected to each other by a tap mutually electromagnetically coupled to the primary coil. The power source apparatus includes a gate driver generating a first drive signal and a second drive signal to a gate of a first field effect transistor and to a gate of a second field effect transistor, respectively. The first field effect transistor and the second field effect transistor are turned on and off alternative by the gate driver.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: November 6, 2012
    Assignee: Sony Corporation
    Inventor: Tatsuki Nishino
  • Publication number: 20110285313
    Abstract: A light-emitting element driving device includes: a plurality of light emitters; a power supply; a plurality of current control transistors; a plurality of constant-current circuits; a voltage selecting circuit; a control circuit; and a voltage controller.
    Type: Application
    Filed: March 3, 2011
    Publication date: November 24, 2011
    Applicant: Sony Corporation
    Inventors: Takahiro Naito, Yasushi Katayama, Tatsuki Nishino
  • Publication number: 20110285685
    Abstract: Disclosed herein is a light-emitting element driver including: a light-emitting section; a power supply section; a switching section; a constant current circuit or resistor; and a control circuit.
    Type: Application
    Filed: March 7, 2011
    Publication date: November 24, 2011
    Applicant: Sony Corporation
    Inventors: Takahiro Naito, Tatsuki Nishino, Takuro Akiyama, Yasushi Katayama
  • Publication number: 20100302824
    Abstract: Disclosed herein is a power source apparatus utilizing a synchronous rectification system, including: a main transformer; a first field effect transistor; a second field effect transistor; and a gate driver.
    Type: Application
    Filed: March 29, 2010
    Publication date: December 2, 2010
    Applicant: Sony Corporation
    Inventor: Tatsuki Nishino