Patents by Inventor Haruhiko Miyao

Haruhiko Miyao 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: 8970730
    Abstract: An imaging apparatus is provided in which a flicker is prevented. The imaging apparatus includes an imaging part that includes an optical system to form an image of a subject and an imaging element to generate an image signal by photoelectrically converting an optical image of the subject formed by the optical system, an image processing part to perform an image processing on the image signal, a display part/operation part having at least display and setting functions, a luminance change detection part to detect change of luminance of the subject, a signal processing part to calculate flicker amounts at respective frequencies based on signal intensities with respect to luminance change information acquired by the luminance change detection part, and a control unit to cause the display part/operation part to display the flicker amounts at the respective frequencies calculated by the signal processing part.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: March 3, 2015
    Assignee: Hitachi Industry & Control Solutions, Ltd.
    Inventors: Yuki Ebina, Takeshi Tahara, Haruhiko Miyao, Makoto Kikuchi, Akinori Shiozawa
  • Publication number: 20130342726
    Abstract: An imaging apparatus is provided in which a flicker is prevented. The imaging apparatus includes an imaging part that includes an optical system to form an image of a subject and an imaging element to generate an image signal by photoelectrically converting an optical image of the subject formed by the optical system, an image processing part to perform an image processing on the image signal, a display part/operation part having at least display and setting functions, a luminance change detection part to detect change of luminance of the subject, a signal processing part to calculate flicker amounts at respective frequencies based on signal intensities with respect to luminance change information acquired by the luminance change detection part, and a control unit to cause the display part/operation part to display the flicker amounts at the respective frequencies calculated by the signal processing part.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 26, 2013
    Inventors: Yuki EBINA, Takeshi TAHARA, Haruhiko MIYAO, Makoto KIKUCHI, Akinori SHIOZAWA
  • Patent number: 8319848
    Abstract: An imaging apparatus includes an imaging unit that receives image data in response to a photographic subject, a face detection unit that detects a human face from the received image data, a photometry unit that performs a photometry of the detected human face, an exposure control unit that calculates a target exposure amount in accordance with a photometry result to calculate an exposure control value, and an exposure correction control unit that determines an exposure in response to the target exposure amount, wherein an exposure correction unit performs an exposure correction by using an exposure target determined by the exposure correction control unit, as an area smaller than a domain of the human face detected by the face detection unit is set to the photometry area.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: November 27, 2012
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Tsutomu Usui, Haruhiko Higuchi, Haruhiko Miyao
  • Patent number: 8130284
    Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: March 6, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Haruhiko Miyao, Takahiro Nakano
  • Patent number: 8040410
    Abstract: A camera capable of compensating for facial field of a person to a proper brightness, and maintaining the luminance scale of the background, comprising an imaging portion for generating the picture data of the person; a gamma compensator for performing gamma compensation for the picture data; a facial field detecting portion for detecting a facial field from the picture data; a photometric portion for exposure metering value of the facial field detected by the facial field detecting portion; an exposure controlling portion for calculating a target exposure amount in response to the output of the photometric portion and controlling exposure depending on the target exposure amount; and a gamma compensation controlling portion for determining a luminance scale characteristic in accordance with the target exposure amount, wherein the gamma compensating portion is controlled on the basis of the luminance scale characteristic determined by the gamma compensation controlling portion.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: October 18, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yuko Arai, Haruhiko Miyao, Tsutomu Usui, Haruhiko Higuchi
  • Publication number: 20100214429
    Abstract: An imaging apparatus includes an imaging unit that receives image data in response to a photographic subject, a face detection unit that detects a human face from the received image data, a photometry unit that performs a photometry of the detected human face, an exposure control unit that calculates a target exposure amount in accordance with a photometry result to calculate an exposure control value, and an exposure correction control unit that determines an exposure in response to the target exposure amount, wherein an exposure correction unit performs an exposure correction by using an exposure target determined by the exposure correction control unit, as an area smaller than a domain of the human face detected by the face detection unit is set to the photometry area.
    Type: Application
    Filed: November 18, 2009
    Publication date: August 26, 2010
    Applicant: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Tsutomu Usui, Haruhiko Higuchi, Haruhiko Miyao
  • Patent number: 7756409
    Abstract: An image pickup device and image pickup method are disclosed, wherein an image is picked up by changing the shutter speed in accordance with the illuminance of an object in the case where the rate at which the object moves in the whole image is smaller than a predetermined value, and an image is picked up without changing the shutter speed regardless of the illuminance of the object in the case where the rate at which the object moves in the whole image is not smaller than the predetermined value.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: July 13, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Akira Irinouchi, Haruhiko Miyao
  • Publication number: 20100002093
    Abstract: A camera capable of compensating for facial field of a person to a proper brightness, and maintaining the luminance scale of the background, comprising an imaging portion for generating the picture data of the person; a gamma compensator for performing gamma compensation for the picture data; a facial field detecting portion for detecting a facial field from the picture data; a photometric portion for exposure metering value of the facial field detected by the facial field detecting portion; an exposure controlling portion for calculating a target exposure amount in response to the output of the photometric portion and controlling exposure depending on the target exposure amount; and a gamma compensation controlling portion for determining a luminance scale characteristic in accordance with the target exposure amount, wherein the gamma compensating portion is controlled on the basis of the luminance scale characteristic determined by the gamma compensation controlling portion.
    Type: Application
    Filed: April 27, 2009
    Publication date: January 7, 2010
    Inventors: Yuko ARAI, Haruhiko Miyao, Tsutomu Usui, Haruhiko Higuchi
  • Publication number: 20090225188
    Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 10, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Haruhiko MIYAO, Takahiro Nakano
  • Patent number: 7551209
    Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: June 23, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Haruhiko Miyao, Takahiro Nakano
  • Patent number: 7474849
    Abstract: A video camera having a power-On recording standby mode, a power-On recording disabled mode, and a power-saving mode, in addition to power-OFF mode. The power-saving mode is a state in which the time taken to shift to said recording standby mode is shorter than the time taken to shift from power-OFF mode. Switching to the power-saving mode is inhibited when recording on the recording medium is not possible, thereby improving the operability of the video camera for the user. The user is prevented from attempting to record during power saving mode.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: January 6, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Shingo Ito, Masahiro Ueda, Haruhiko Miyao
  • Publication number: 20070159537
    Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.
    Type: Application
    Filed: March 8, 2007
    Publication date: July 12, 2007
    Applicant: HITACHI LTD.
    Inventors: Haruhiko Miyao, Takahiro Nakano
  • Publication number: 20070122140
    Abstract: A video camera having a power-saving mode in which it takes a short period of time until start of recording has the problem that, because the power-saving mode is assumed even when recording in a recording medium is not possible, a user may misunderstand that recording is possible. The present invention provides a camera having the power-saving mode in which it takes a short period of time until start of shooting and switching to the power-saving mode is inhibited when recording in the recording medium is not possible to thereby prevent the user's misunderstanding.
    Type: Application
    Filed: August 31, 2006
    Publication date: May 31, 2007
    Inventors: Shingo Ito, Masahiro Ueda, Haruhiko Miyao
  • Patent number: 7199821
    Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 3, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Haruhiko Miyao, Takahiro Nakano
  • Publication number: 20070058966
    Abstract: An image pickup device and image pickup method are disclosed, wherein an image is picked up by changing the shutter speed in accordance with the illuminance of an object in the case where the rate at which the object moves in the whole image is smaller than a predetermined value, and an image is picked up without changing the shutter speed regardless of the illuminance of the object in the case where the rate at which the object moves in the whole image is not smaller than the predetermined value.
    Type: Application
    Filed: March 7, 2006
    Publication date: March 15, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Akira Irinouchi, Haruhiko Miyao
  • Publication number: 20030160876
    Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 28, 2003
    Inventors: Haruhiko Miyao, Takahiro Nakano