Patents by Inventor Toshiya Fujii

Toshiya Fujii 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: 10911697
    Abstract: An imaging apparatus including a light source that, in operation, emits pulsed light to a measurement target; a diffusion member that is disposed between the light source and the measurement target, and diffuses the pulsed light; an image sensor that includes at least one pixel, the at least one pixel including a photodiode and a charge accumulator that, in operation, accumulates signal charge from the photodiode; and a control circuit that, in operation, controls the image sensor. The control circuit causes the image sensor to start to accumulate the signal charge with the charge accumulator in a falling period of a returned pulsed light which is returned from the measurement target to the image sensor due to the emission of the pulsed light, the falling period being a period from start to end of a decrease of an intensity of the returned pulsed light.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: February 2, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takamasa Ando, Tsuguhiro Korenaga, Toshiya Fujii
  • Publication number: 20200244898
    Abstract: An imaging apparatus including a light source that, in operation, emits pulsed light to a measurement target; a diffusion member that is disposed between the light source and the measurement target, and diffuses the pulsed light; an image sensor that includes at least one pixel, the at least one pixel including a photodiode and a charge accumulator that, in operation, accumulates signal charge from the photodiode; and a control circuit that, in operation, controls the image sensor. The control circuit causes the image sensor to start to accumulate the signal charge with the charge accumulator in a falling period of a returned pulsed light which is returned from the measurement target to the image sensor due to the emission of the pulsed light, the falling period being a period from start to end of a decrease of an intensity of the returned pulsed light.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 30, 2020
    Inventors: Takamasa ANDO, Tsuguhiro KORENAGA, Toshiya FUJII
  • Publication number: 20200178871
    Abstract: A biological information detection device including: a light source that, in operation, emits irradiation light for irradiating a test portion of a subject; a light detector that, in operation, detects light reached from the test portion and that outputs an electrical signal corresponding to the light; and a calculation circuit that, in operation, generates a signal of biological information related to a blood flow in a target area in the test portion based on the electrical signal. The light detector is an image sensor. The electrical signal includes an image signal obtained by the image sensor. The calculation circuit, in operation, detects a magnitude of an inclination of an orientation of the test portion with respect to a reference orientation by image recognition based on the image signal, and determines the target area according to the magnitude of the inclination of the orientation of the test portion.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Inventors: Naomi SATOI, Teruhiro SHIONO, Toshiya FUJII
  • Patent number: 10652482
    Abstract: An imaging apparatus including a light source that, in operation, emits pulsed light to a measurement target; a diffusion member that is disposed between the light source and the measurement target, and diffuses the pulsed light; an image sensor that includes at least one pixel, the at least one pixel including a photodiode and a charge accumulator that, in operation, accumulates signal charge from the photodiode; and a control circuit that, in operation, controls the image sensor. The control circuit causes the image sensor to start to accumulate the signal charge with the charge accumulator in a falling period of a returned pulsed light which is returned from the measurement target to the image sensor due to the emission of the pulsed light, the falling period being a period from start to end of a decrease of an intensity of the returned pulsed light.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 12, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takamasa Ando, Tsuguhiro Korenaga, Toshiya Fujii
  • Patent number: 10602971
    Abstract: A biological information detection device according to an aspect of the present disclosure includes: a light source that, in operation, emits irradiation light for irradiating a test portion of a subject; a light detector that, in operation, detects light reached from the test portion and that outputs an electrical signal corresponding to the light; and a calculation circuit that, in operation, generates a signal of biological information related to a blood flow in a target area in the test portion based on the electrical signal. The light detector is an image sensor. The electrical signal includes an image signal obtained by the image sensor. The calculation circuit, in operation, detects a magnitude of an inclination of an orientation of the test portion with respect to a reference orientation by image recognition based on the image signal, and determines the target area according to the magnitude of the inclination of the orientation of the test portion.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: March 31, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naomi Satoi, Teruhiro Shiono, Toshiya Fujii
  • Publication number: 20200045299
    Abstract: An imaging apparatus includes an imaging device, a first imaging optical system and a second imaging optical system that form respective input images from mutually different viewpoints onto the imaging device, and a first modulation mask and a second modulation mask that modulate the input images formed by the first imaging optical system and the second imaging optical system. The imaging device captures a superposed image composed of the two input images that have been formed by the first imaging optical system and the second imaging optical system, modulated by the first modulation mask and the second modulation mask, and optically superposed on each other, and the first modulation mask and the second modulation mask have mutually different optical transmittance distribution characteristics.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Kunio NOBORI, Satoshi SATO, Takeo AZUMA, Takamasa ANDO, Tsuguhiro KORENAGA, Toshiya FUJII
  • Patent number: 10484668
    Abstract: An imaging apparatus includes an imaging device, a first imaging optical system and a second imaging optical system that form respective input images from mutually different viewpoints onto the imaging device, and a first modulation mask and a second modulation mask that modulate the input images formed by the first imaging optical system and the second imaging optical system. The imaging device captures a superposed image composed of the two input images that have been formed by the first imaging optical system and the second imaging optical system, modulated by the first modulation mask and the second modulation mask, and optically superposed on each other, and the first modulation mask and the second modulation mask have mutually different optical transmittance distribution characteristics.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kunio Nobori, Satoshi Sato, Takeo Azuma, Takamasa Ando, Tsuguhiro Korenaga, Toshiya Fujii
  • Publication number: 20190273876
    Abstract: An imaging apparatus including a light source that, in operation, emits pulsed light to a measurement target; a diffusion member that is disposed between the light source and the measurement target, and diffuses the pulsed light; an image sensor that includes at least one pixel, the at least one pixel including a photodiode and a charge accumulator that, in operation, accumulates signal charge from the photodiode; and a control circuit that, in operation, controls the image sensor. The control circuit causes the image sensor to start to accumulate the signal charge with the charge accumulator in a falling period of a returned pulsed light which is returned from the measurement target to the image sensor due to the emission of the pulsed light, the falling period being a period from start to end of a decrease of an intensity of the returned pulsed light.
    Type: Application
    Filed: May 13, 2019
    Publication date: September 5, 2019
    Inventors: Takamasa ANDO, Tsuguhiro KORENAGA, Toshiya FUJII
  • Patent number: 10397496
    Abstract: An imaging device includes a light source, an image sensor, and a controller. Each pixel of the image sensor includes first and second accumulators and a discharger. The controller, while a component of light from the light source reflected by the surface of a target is incident on the image sensor, causes the accumulators to accumulate signal charge not discharged to the discharger, by setting the image sensor so that signal charge is discharged to the discharger, while a component having scattered inside the target is incident on the image sensor, causes the first accumulator to accumulate signal charge by setting the image sensor so that signal charge is not discharged to the discharger and signal charge is accumulated in the first accumulator, and causes the image sensor to generate first and second signals that are respectively based on signal charge accumulated in the first and second accumulators.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: August 27, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsuya Nakamura, Toshiya Fujii, Masaaki Yanagida, Takamasa Ando
  • Patent number: 10334188
    Abstract: An imaging apparatus including a light source that, in operation, emits pulsed light to a measurement target; a diffusion member that is disposed between the light source and the measurement target, and diffuses the pulsed light; an image sensor that includes at least one pixel, the at least one pixel including a photodiode and a charge accumulator that, in operation, accumulates signal charge from the photodiode; and a control circuit that, in operation, controls the image sensor. The control circuit causes the image sensor to start to accumulate the signal charge with the charge accumulator in a falling period of a returned pulsed light which is returned from the measurement target to the image sensor due to the emission of the pulsed light, the falling period being a period from start to end of a decrease of an intensity of the returned pulsed light.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 25, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takamasa Ando, Tsuguhiro Korenaga, Toshiya Fujii
  • Publication number: 20190162596
    Abstract: An optical filter including filter regions arrayed two-dimensionally, in which the filter regions include a first region and a second region; a wavelength distribution of an optical transmittance of the first region has a first local maximum in a first wavelength band and a second local maximum in a second wavelength band that differs from the first wavelength band, and a wavelength distribution of an optical transmittance of the second region has a third local maximum in a third wavelength band that differs from each of the first wavelength band and the second wavelength band and a fourth local maximum in a fourth wavelength band that differs from the third wavelength band.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 30, 2019
    Inventors: Toshiya FUJII, Takamasa ANDO
  • Publication number: 20190072673
    Abstract: A distance measurement system includes: a signal generator which generates a light emission signal that instructs light emission and an exposure signal that instructs exposure of reflected light; a first illumination and distance measurement light source which receives the light emission signal and, according to the signal received, performs the light emission for illumination without a purpose of distance measurement and the light emission with the purpose of distance measurement using the reflected light; an imaging device which receives the exposure signal, performs the exposure according to the signal received, and obtains an amount of light exposure of the reflected light; and a calculator which calculates distance information using the amount of light exposure and outputs the distance information, wherein the distance measurement system has operation modes including an illumination mode and a first distance measurement mode.
    Type: Application
    Filed: November 7, 2018
    Publication date: March 7, 2019
    Inventors: Junji ITO, Tohru YAMADA, Toshiya FUJII
  • Patent number: 10215636
    Abstract: An imaging device according to an aspect of the present disclosure is provided with: a light source that, in operation, emits pulsed light including components of different wavelengths; an encoding element that has regions each having different light transmittance, through which incident light from a target onto which the pulsed light has been irradiated is transmitted; a spectroscopic element that, in operation, causes the incident light transmitted through the regions to be dispersed into light rays in accordance with the wavelengths; and an image sensor that, in operation, receives the light rays dispersed by the spectroscopic element.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: February 26, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshiya Fujii, Takamasa Ando
  • Patent number: 10200637
    Abstract: An image pickup apparatus includes: a first light source which, in operation, emits first pulsed light to project a first image of a first pattern at a first position in a predetermined region of a subject, and emits second pulsed light to project a second image of a second pattern at a second position, different from the first position, in the predetermined region of the subject; an image sensor including multiple pixels each including a photodetector that, in operation, converts received light into a signal charge, and a first accumulator and a second accumulator each of which, in operation, accumulates the signal charge; and a control circuit which, in operation, controls the first light source and the image sensor.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: February 5, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiya Fujii, Takamasa Ando, Tatsuya Nakamura
  • Patent number: 10194099
    Abstract: An imaging apparatus according to an aspect of the present disclosure includes a light source that, in operation, emits first pulsed light and second pulsed light, an image sensor that includes at least one pixel including a photodiode, a first charge accumulator and a second charge accumulator, the first charge accumulator and the second charge accumulator, in operation, accumulating signal charge from the photodiode, and a control circuit that, in operation, controls the image sensor. The control circuit, in operation, causes the first charge accumulator to begin to accumulate the signal charge a period of time after the light source begins to emit the first pulsed light. The control circuit, in operation, causes the second charge accumulator to begin to accumulate the signal charge the period of time after the light source begins to emit the second pulsed light.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: January 29, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takamasa Ando, Tsuguhiro Korenaga, Toshiya Fujii
  • Publication number: 20190028660
    Abstract: An imaging apparatus including a light source that, in operation, emits pulsed light to a measurement target; a diffusion member that is disposed between the light source and the measurement target, and diffuses the pulsed light; an image sensor that includes at least one pixel, the at least one pixel including a photodiode and a charge accumulator that, in operation, accumulates signal charge from the photodiode; and a control circuit that, in operation, controls the image sensor. The control circuit causes the image sensor to start to accumulate the signal charge with the charge accumulator in a falling period of a returned pulsed light which is returned from the measurement target to the image sensor due to the emission of the pulsed light, the falling period being a period from start to end of a decrease of an intensity of the returned pulsed light.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 24, 2019
    Inventors: Takamasa ANDO, Tsuguhiro KORENAGA, Toshiya FUJII
  • Patent number: 10151835
    Abstract: A distance measurement system includes: a signal generator which generates a light emission signal that instructs light emission and an exposure signal that instructs exposure of reflected light; a first illumination and distance measurement light source which receives the light emission signal and, according to the signal received, performs the light emission for illumination without a purpose of distance measurement and the light emission with the purpose of distance measurement using the reflected light; an imaging device which receives the exposure signal, performs the exposure according to the signal received, and obtains an amount of light exposure of the reflected light; and a calculator which calculates distance information using the amount of light exposure and outputs the distance information, wherein the distance measurement system has operation modes including an illumination mode and a first distance measurement mode.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 11, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Junji Ito, Tohru Yamada, Toshiya Fujii
  • Patent number: 10104315
    Abstract: An imaging apparatus according to an aspect of the present disclosure includes a light source that, in operation, emits pulsed light to a living body, an image sensor that includes at least one pixel including a photodiode and charge accumulators that, in operation, accumulate signal charge from the photodiode, and a control circuit that, in operation, controls the image sensor. The charge accumulators, in operation, accumulate the signal charge corresponding to a component of the pulsed light scattered inside the living body.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: October 16, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takamasa Ando, Tsuguhiro Korenaga, Toshiya Fujii
  • Patent number: 10073164
    Abstract: A distance-measuring/imaging apparatus having a high S/N and a high distance measurement accuracy is provided. The distance-measuring/imaging apparatus includes: a signal generation unit for generating an emission signal and exposure signal; a light source unit for performing light irradiation by receiving the emission signal; an imaging unit for performing exposure by receiving the exposure signal and for acquiring the exposure amount of the reflected light; and a calculation unit for calculating and outputting the distance information on the basis of the exposure amount. The imaging unit acquires a first exposure amount corresponding to the exposure in a first emission/exposure period, in which the exposure is performed by receiving the exposure signal simultaneously with a receiving timing of the emission signal.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: September 11, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Mitsuhiko Otani, Toshiya Fujii, Junji Tokumoto, Haruka Takano
  • Patent number: 10048380
    Abstract: A distance-measuring imaging device includes: a drive control unit; a light source unit; an image processing unit including light receiving units and charge reading units arranged one-to-one; and an image processing unit. The charge reading units are arranged partly at the left side of corresponding ones of the light receiving units and partly at the right side of corresponding ones of the same. In each of a period in which the exposure is performed when the exposure control signal is received after a first delay time since when the light emission control signal is received and a period in which the exposure is performed when the exposure control signal is received after a second delay time longer than the first delay time, since when the light emission control signal is received, the left-side charge reading units read charge leftward, and the right-side charge reading units read charge rightward.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 14, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Makoto Yarino, Toshiya Fujii, Mitsuhiko Otani, Haruka Takano