Patents by Inventor Mie Ishii

Mie Ishii 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: 20190028664
    Abstract: An image sensor includes a unit pixel that includes a photoelectric converter configured to accumulate electric charges generated based on incident light, and an electric charger configured to store the electric charges transferred from the photoelectric converter, and a corrector configured to correct a signal corresponding to the electric charges output from the electric charger based on a transfer condition when the electric charges are transferred from the photoelectric converter to the electric charger.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 24, 2019
    Inventor: Mie Ishii
  • Publication number: 20180239108
    Abstract: An image sensor includes a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix, a signal readout portion that reads out signals accumulated in the photoelectric conversion portions and converts the read signals to digital signals, a signal processor that processes signals read out by the signal readout portion and has an image capture signal processor that performs signal processing for generating a captured image on signals read out by the signal readout portion and a focus detection signal processor that performs signal processing for focus detection on signals read out by the signal readout portion, and an output portion that outputs signals processed by the signal processor.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 23, 2018
    Inventors: Mie Ishii, Ken Sasaki
  • Publication number: 20180109736
    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.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 19, 2018
    Inventors: Mie Ishii, Seiichirou Sakai
  • Patent number: 9930279
    Abstract: An image capturing apparatus includes a plurality of unit pixels that each have a plurality of photoelectric conversion portions, and are arranged in a matrix; a plurality of column output lines arranged for each column of the unit pixels; and a switching unit configured to switch between a first read out mode where signals that have been accumulated in the plurality of photoelectric conversion portions of a unit pixel are read out from respectively different column output lines, and a second read out mode where signals that have been accumulated in the plurality of photoelectric conversion portions of a unit pixel are combined and then read out from a single column output line.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: March 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mie Ishii, Hirokazu Kobayashi
  • Publication number: 20180027202
    Abstract: An image sensing device includes: a plurality of pixels; and an AD converter that compares a pixel signal output from the plurality of pixels with a slope voltage having a temporally variable potential so as to perform AD conversion on the pixel signal, and switching is performed between a first mode and a second mode according to an imaging condition, the first mode being a mode in which the pixel signal is AD converted by selecting one from among a plurality of slope voltages and comparing the pixel signal with the selected slope voltage, and the second mode being a mode in which the pixel signal is AD converted by comparing the pixel signal with a predetermined slope voltage.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 25, 2018
    Inventor: Mie Ishii
  • Patent number: 9854195
    Abstract: An image capturing apparatus comprises a unit pixel including a plurality of light receiving elements, a plurality of column output lines provided, for each column, at a number greater than or equal to at least a number of the light receiving elements of each unit pixel, and a switching unit configured to switch between a first readout mode for reading out signals from the plurality of light receiving elements via respectively different column output lines and a second readout mode for reading out signals from the plurality of light receiving elements via the same column output line for each unit pixel.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 26, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Kobayashi, Mie Ishii
  • Patent number: 9781367
    Abstract: An image sensor includes an image sensing plane in which a plurality of pixels are two-dimensionally arranged and at least a portion of a region thereof has a curved shape, and a plurality of well contacts that fix a well potential and are connected to a portion of pixels from among the plurality of pixels. The well contacts are arranged such that an arrangement density thereof in the image sensing plane is different in each region according to the curved shape of the image sensing plane.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: October 3, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Mie Ishii
  • Publication number: 20170064226
    Abstract: A control apparatus (106) includes an acquirer (106a) which acquires a first imaging signal that is read in a first mode from a first pixel area of an image sensor and a second imaging signal that is read in a second mode from a second pixel area of the image sensor, the image sensor including a plurality of photoelectric converters corresponding to a single microlens, and an image processor (106b) which performs noise reduction processing on the first and second imaging signals, the first mode is a mode in which pixel signals of photoelectric converters are added to each other to he read from the image sensor, and the second mode is a mode in which a pixel signal of at least one of the photoelectric converters is read independently as a predetermined signal.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventors: Mie Ishii, Hirokazu Kobayashi, Koji Oshima
  • Patent number: 9544512
    Abstract: An image capturing apparatus including an image sensor including a pixel region in which a plurality of pixels are arranged in a row direction and a column direction, and readout unit for reading out pixel signals from the plurality of pixels, setting unit for setting an imaging condition and control unit for selecting one of a readout mode between thinning readout mode in which the pixel signals are read out from the plurality of pixels while thinning out the plurality of pixels and a mixing readout mode in which the pixel signals of the plurality of pixels are mixed and readout according to the imaging condition set by the setting unit.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: January 10, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mie Ishii, Teruyuki Okado
  • Publication number: 20160295139
    Abstract: An image sensor includes an image sensing plane in which a plurality of pixels are two-dimensionally arranged and at least a portion of a region thereof has a curved shape, and a plurality of well contacts that fix a well potential and are connected to a portion of pixels from among the plurality of pixels. The well contacts are arranged such that an arrangement density thereof in the image sensing plane is different in each region according to the curved shape of the image sensing plane.
    Type: Application
    Filed: March 28, 2016
    Publication date: October 6, 2016
    Inventor: Mie Ishii
  • Patent number: 9432603
    Abstract: An imaging apparatus, which includes an imaging device having a plurality of image sensors, is configured to receive light incident on the imaging device, obtain an output voltage based the received light, and generate an image based on the output voltage. The plurality of image sensors have an aperture pixel region that accumulates and outputs the charges generated based on the incident light and a shielded optical black region. The imaging device performs a skipping operation for arbitrarily and non-sequentially selecting a read row. By performing an offset correction of a step amount produced during the non-sequential reading due to the skip operation, the step resulting from the skip reading can be corrected.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: August 30, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mie Ishii
  • Publication number: 20160219237
    Abstract: An image capturing apparatus comprises a unit pixel including a plurality of light receiving elements, a plurality of column output lines provided, for each column, at a number greater than or equal to at least a number of the light receiving elements of each unit pixel, and a switching unit configured to switch between a first readout mode for reading out signals from the plurality of light receiving elements via respectively different column output lines and a second readout mode for reading out signals from the plurality of light receiving elements via the same column output line for each unit pixel.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: Hirokazu Kobayashi, Mie Ishii
  • Publication number: 20160198109
    Abstract: An image capturing apparatus includes a plurality of unit pixels that each have a plurality of photoelectric conversion portions, and are arranged in a matrix; a plurality of column output lines arranged for each column of the unit pixels; and a switching unit configured to switch between a first read out mode where signals that have been accumulated in the plurality of photoelectric conversion portions of a unit pixel are read out from respectively different column output lines, and a second read out mode where signals that have been accumulated in the plurality of photoelectric conversion portions of a unit pixel are combined and then read out from a single column output line.
    Type: Application
    Filed: December 16, 2015
    Publication date: July 7, 2016
    Inventors: Mie Ishii, Hirokazu Kobayashi
  • Publication number: 20140340554
    Abstract: An image capturing apparatus including an image sensor including a pixel region in which a plurality of pixels are arranged in a row direction and a column direction, and readout unit for reading out pixel signals from the plurality of pixels, setting unit for setting an imaging condition and control unit for selecting one of a readout mode between thinning readout mode in which the pixel signals are read out from the plurality of pixels while thinning out the plurality of pixels and a mixing readout mode in which the pixel signals of the plurality of pixels are mixed and readout according to the imaging condition set by the setting unit.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 20, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mie Ishii, Teruyuki Okado
  • Patent number: 8836806
    Abstract: An image pickup apparatus that is capable of taking a distortion-free moving image without enlarging circuit scale. An image sensor has pixels each of which comprises a photoelectric conversion section that generates an electric charge corresponding to the incident light, a charge storage section that stores the electric charge, and an output section that outputs a voltage corresponding to the electric charge. The pixels include a first type pixel with a charge retention section that temporally holds the electric charge before transferring to the charge storage section, and a second type pixel without the charge retention section. A setting unit sets up a mode. A control unit controls to generate an image corresponding the output voltage from the first type pixel in a moving image pickup mode, and to generate an image corresponding to the output voltages from the first and second type pixels in a still image pickup mode.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: September 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mie Ishii
  • Patent number: 8792021
    Abstract: An image capturing apparatus includes an image sensor having an effective pixel area composed of effective pixels that photoelectrically convert an object image and a reference pixel area composed of reference pixels that output pixel signals to be a reference; a first calculation unit that calculates a standard deviation of the pixel signals output from the reference pixel area; a second calculation unit that calculates an integrated value of the pixel signals output from the reference pixel area; a third calculation unit that calculates a correction value for correcting pixel signals output from the effective pixel area, with use of the integrated value; a correction unit that corrects the pixel signals output from the effective pixel area, based on the correction value; and a determination unit that determines whether correction is to be performed by the correction unit, according to the standard deviation.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mie Ishii
  • Patent number: 8780236
    Abstract: Provided is an imaging apparatus including an image sensor. In the image sensor that includes a valid pixel area in which a plurality of valid pixels each having a photoelectric conversion unit is disposed, a first reference pixel area in which a plurality of first reference pixels each having a light-shielded photoelectric conversion unit is disposed, and a second reference pixel area in which a plurality of second reference pixels each having no photoelectric conversion unit is disposed, when outputs of the plurality of valid pixels are added to be read, outputs of the plurality of first reference pixels are added by the addition unit to be read, and outputs of the plurality of second reference pixels are read without being added by the addition unit. Thus, noises can be effectively corrected even in the small number of invalid pixels areas.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mie Ishii
  • Publication number: 20120327280
    Abstract: Provided is an imaging apparatus including an image sensor. In the image sensor that includes a valid pixel area in which a plurality of valid pixels each having a photoelectric conversion unit is disposed, a first reference pixel area in which a plurality of first reference pixels each having a light-shielded photoelectric conversion unit is disposed, and a second reference pixel area in which a plurality of second reference pixels each having no photoelectric conversion unit is disposed, when outputs of the plurality of valid pixels are added to be read, outputs of the plurality of first reference pixels are added by the addition unit to be read, and outputs of the plurality of second reference pixels are read without being added by the addition unit. Thus, noises can be effectively corrected even in the small number of invalid pixels areas.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 27, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Mie Ishii
  • Publication number: 20120249817
    Abstract: An image pickup apparatus that is capable of taking a distortion-free moving image without enlarging circuit scale. An image sensor has pixels each of which comprises a photoelectric conversion section that generates an electric charge corresponding to the incident light, a charge storage section that stores the electric charge, and an output section that outputs a voltage corresponding to the electric charge. The pixels include a first type pixel with a charge retention section that temporally holds the electric charge before transferring to the charge storage section, and a second type pixel without the charge retention section. A setting unit sets up a mode. A control unit controls to generate an image corresponding the output voltage from the first type pixel in a moving image pickup mode, and to generate an image corresponding to the output voltages from the first and second type pixels in a still image pickup mode.
    Type: Application
    Filed: December 3, 2010
    Publication date: October 4, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Mie Ishii
  • Publication number: 20120044390
    Abstract: An image capturing apparatus includes an image sensor having an effective pixel area composed of effective pixels that photoelectrically convert an object image and a reference pixel area composed of reference pixels that output pixel signals to be a reference; a first calculation unit that calculates a standard deviation of the pixel signals output from the reference pixel area; a second calculation unit that calculates an integrated value of the pixel signals output from the reference pixel area; a third calculation unit that calculates a correction value for correcting pixel signals output from the effective pixel area, with use of the integrated value; a correction unit that corrects the pixel signals output from the effective pixel area, based on the correction value; and a determination unit that determines whether correction is to be performed by the correction unit, according to the standard deviation.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 23, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Mie Ishii