Patents by Inventor Ichiro Murakami

Ichiro Murakami 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: 20160195226
    Abstract: A light source unit is used in a multiply combined manner, and includes a light source element having a substrate and one or more light emitting elements disposed on the substrate. The light source unit is configured such that when a plurality of the light source units are arranged in cascade, the light source element in the light source unit comes to in electric connection with another light source element in an adjacent light source unit. Thereby, the plurality of light source units may emit light at the same time. Thus, the structure similar to rod-shaped light source such as CCFL is achieved.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Applicant: Sony Corporation
    Inventors: Norimasa Furukawa, Hiroshi Murayama, Ichiro Murakami
  • Patent number: 9316360
    Abstract: A light source unit is used in a multiply combined manner, and includes a light source element having a substrate and one or more light emitting elements disposed on the substrate. The light source unit is configured such that when a plurality of the light source units are arranged in cascade, the light source element in the light source unit comes to in electric connection with another light source element in an adjacent light source unit. Thereby, the plurality of light source units may emit light at the same time. Thus, the structure similar to rod-shaped light source such as CCFL is achieved.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 19, 2016
    Assignee: Sony Corporation
    Inventors: Norimasa Furukawa, Hiroshi Murayama, Ichiro Murakami
  • Patent number: 9318058
    Abstract: A display unit includes: an image display panel; a backlight section disposed on a back surface of the image display panel, and including a light guide member and a polymer dispersed liquid crystal panel; a light source emitting light, the light being allowed to enter the light guide member of the backlight section; a polymer dispersed liquid crystal panel drive section driving the polymer dispersed liquid crystal panel of the backlight section in synchronization with writing of an image displayed on the image display panel to control a location that scatters light incident on the light guide member on the polymer dispersed liquid crystal panel; and a light source drive section allowing the light source to blink in synchronization with a period in which light is scattered by the polymer dispersed liquid crystal panel.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 19, 2016
    Assignee: Sony Corporation
    Inventors: Norimasa Furukawa, Naoki Ikawa, Ichiro Murakami, Kentaro Okuyama, Akira Ebisui
  • Patent number: 8917767
    Abstract: The present invention provides an image display apparatus capable of reducing a judder and simultaneously weakening the degree of reducing the judder at the time of converting frame rate of a film signal using motion compensation. At the time of converting frame rate of a video signal by adding N (N: integer of 2 or larger) interpolation frames into between original frames neighboring each other along time base obtained from video images in original frames by using motion compensation so that interpolation positions of the video images in the N interpolation frames are set to a deviated position which is closer to the nearest video image in the original frames rather than positions obtained by equally dividing, into (N+1) portions, magnitude of video image motion between an earlier original frame and a following original frame along the time base.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: December 23, 2014
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Patent number: 8780253
    Abstract: A solid-state imaging device includes a semiconductor substrate having a principal surface, and three or more pixel regions formed in at least one direction of two different directions along the principal surface of the semiconductor substrate. Each pixel region includes a plurality of photoelectric conversion regions having different sensitivities. The photoelectric conversion region having the highest sensitivity in peripheral pixel regions of the pixel regions has a higher sensitivity than the photoelectric conversion region having the highest sensitivity in a central pixel region of the pixel regions.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: July 15, 2014
    Assignee: Sony Corporation
    Inventor: Ichiro Murakami
  • Publication number: 20140139461
    Abstract: A display unit includes: an image display panel; a backlight section disposed on a back surface of the image display panel, and including a light guide member and a polymer dispersed liquid crystal panel; a light source emitting light, the light being allowed to enter the light guide member of the backlight section; a polymer dispersed liquid crystal panel drive section driving the polymer dispersed liquid crystal panel of the backlight section in synchronization with writing of an image displayed on the image display panel to control a location that scatters light incident on the light guide member on the polymer dispersed liquid crystal panel; and a light source drive section allowing the light source to blink in synchronization with a period in which light is scattered by the polymer dispersed liquid crystal panel.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 22, 2014
    Applicant: SONY CORPORATION
    Inventors: Norimasa Furukawa, Naoki Ikawa, Ichiro Murakami, Kentaro Okuyama, Akira Ebisui
  • Patent number: 8441468
    Abstract: The present invention provides an image display apparatus capable of reducing a hold blur in accordance with circumstances. A black inserting process for inserting a black display area into a display screen in a liquid crystal display panel 2 according to at least one of substance of a video signal in an original frame and brightness of viewing environment for user is performed. Concretely, for example, when a video signal in the original frame is a cinema signal (film signal), the black inserting process of inserting a black display area into the display screen in the liquid crystal display panel 2 is performed. More concretely, for example, a backlight driving unit 71 performs switching drive between turn-on and turn-off of a backlight 72 so that the black inserting process is performed on the display screen in the liquid crystal display panel 2.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: May 14, 2013
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Patent number: 8248359
    Abstract: A display apparatus includes a display section, a backlight, and a drive section. The display section is formed from a liquid crystal display apparatus of the transmission type having a display area formed from pixels arranged in a matrix. The backlight is formed from a plurality of light source units disposed individually corresponding to a plurality of display area units which form the display area and configured to illuminate the back side of the display section. The drive section is configured to drive the display section and the backlight based on input signals from the outside. The drive section includes a control section configured to control a light emitting state of the light source unit corresponding to each of the display area units based on a display area unit internal maximum input signal which indicates a maximum value from among the input signals corresponding to the display area unit.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: August 21, 2012
    Assignee: Sony Corporation
    Inventors: Tetsuji Inada, Mitsuyasu Asano, Yoshihiro Katsu, Norimasa Furukawa, Ichiro Murakami
  • Patent number: 8213504
    Abstract: The present invention provides an image display apparatus capable of suppressing deterioration in picture quality resulting from precision of detection of a motion vector at the time of performing a predetermined video signal process to improve picture quality. In consideration of reliability in detection of a motion vector mv by a motion vector detector 44, a video signal process in an interpolation section 45, an imaging blur suppression processor 13, and an overdrive processor 10 is performed. Concretely, the video signal process is performed so that a degree of the video signal process rises as reliability increases and, on the other hand, a degree of the video signal process falls off as the reliability decreases. In the case of performing the video signal process using a motion vector, even when a motion vector lies out of a motion vector search range (block matching range), the video signal process according to the motion vector detection precision can be performed.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: July 3, 2012
    Assignee: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Publication number: 20120119069
    Abstract: A solid-state imaging device includes a semiconductor substrate having a principal surface, and three or more pixel regions formed in at least one direction of two different directions along the principal surface of the semiconductor substrate. Each pixel region includes a plurality of photoelectric conversion regions having different sensitivities. The photoelectric conversion region having the highest sensitivity in peripheral pixel regions of the pixel regions has a higher sensitivity than the photoelectric conversion region having the highest sensitivity in a central pixel region of the pixel regions.
    Type: Application
    Filed: December 5, 2011
    Publication date: May 17, 2012
    Applicant: Sony Corporation
    Inventor: Ichiro Murakami
  • Publication number: 20120062584
    Abstract: An image display apparatus and an image display method capable of suppressing the color breakup occurring during eye tracking of a picture with motion in a field-sequential display are provided. A display section (a display panel 2 and a backlight 3) time-divisionally displays, in a manner of the field-sequential display, field images of plural colors in a display sequence controlled by a display sequence control section 12. The display sequence of the field images of plural colors is controlled to allow a composite luminance distribution perceived by a viewer on his retina to have a predetermined profile, the composite luminance distribution being created based on a group of field images which configures a frame or two frames in successive time sequence in a picture with motion displayed on the display section, the predetermined profile having highest luminance in a mid-range thereof and having luminance getting lower toward a periphery thereof to spread with bilateral-symmetry.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 15, 2012
    Inventors: Norimasa Furukawa, Ichiro Murakami
  • Patent number: 8072529
    Abstract: A solid-state imaging device includes a semiconductor substrate having a principal surface, and three or more pixel regions formed in at least one direction of two different directions along the principal surface of the semiconductor substrate. Each pixel region includes a plurality of photoelectric conversion regions having different sensitivities. The photoelectric conversion region having the highest sensitivity in peripheral pixel regions of the pixel regions has a higher sensitivity than the photoelectric conversion region having the highest sensitivity in a central pixel region of the pixel regions.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: December 6, 2011
    Assignee: Sony Corporation
    Inventor: Ichiro Murakami
  • Patent number: 7852394
    Abstract: The present invention is to provide a driving method for a solid-state imaging device which suppresses increase of smear and occurrence of image blur when imaging a moving object. In the driving method, for each row of the color filters arranged in the Bayer pattern, for a pixel, a signal charge is held in a first holding unit, which is generated in a preceding field period temporally preceding a predetermined field out of two different fields temporally equidistant from the predetermined field, a first signal charge is held in a second holding unit, which is generated within the predetermined field, the signal charge held in the first holding unit and a signal charge which is generated in a following field period are added, and a second signal charge obtained by the addition and the first signal charge are respectively outputted to outside of the solid-state imaging device.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: December 14, 2010
    Assignee: Panasonic Corporation
    Inventor: Ichiro Murakami
  • Patent number: 7796185
    Abstract: There is provided a driving method for a solid-state imaging device in which the number of effective pixels is not reduced, a difference between resolutions in a vertical direction and a horizontal direction is not caused, blurring of an image is reduced as compared with conventional cases, image inconsistency at high luminance is not caused, and the dynamic range is wide.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: September 14, 2010
    Assignee: Panasonic Corporation
    Inventor: Ichiro Murakami
  • Publication number: 20100156926
    Abstract: An image display device is provided, with less color breaking in the field sequential method. A color component image with a relatively high luminance level is extracted as a fundamental image from an input image. A differential image is obtained by subtracting color component of the fundamental image from an input image, and is decomposed into a plurality of color components. The differential image for each color component is divided into two. The fundamental image is displayed at a middle timing of a frame period. The half-divided differential images are displayed at timings before and after the middle timing for the fundamental image so that the half-divided differential image with higher luminance level with consideration for visibility characteristic is displayed at a timing closer to the middle timing for the fundamental image.
    Type: Application
    Filed: December 10, 2009
    Publication date: June 24, 2010
    Inventors: Norimasa FURUKAWA, Yoshihiko Kuroki, Ichiro Murakami, Mitsuyasu Asano, Tomohiro Nishi
  • Publication number: 20100034272
    Abstract: The present invention provides an image display apparatus capable of reducing a judder and simultaneously weakening the degree of reducing the judder at the time of converting frame rate of a film signal using motion compensation. At the time of converting frame rate of a video signal by adding N (N: integer of 2 or larger) interpolation frames into between original frames neighboring each other along time base obtained from video images in original frames by using motion compensation so that interpolation positions of the video images in the N interpolation frames are set to a deviated position which is closer to the nearest video image in the original frames rather than positions obtained by equally dividing, into (N+1) portions, magnitude of video image motion between an earlier original frame and a following original frame along the time base.
    Type: Application
    Filed: February 20, 2008
    Publication date: February 11, 2010
    Applicant: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Publication number: 20100013991
    Abstract: The present invention provides an image display apparatus capable of suppressing deterioration in picture quality resulting from precision of detection of a motion vector at the time of performing a predetermined video signal process to improve picture quality. In consideration of reliability in detection of a motion vector mv by a motion vector detector 44, a video signal process in an interpolation section 45, an imaging blur suppression processor 13, and an overdrive processor 10 is performed. Concretely, the video signal process is performed so that a degree of the video signal process rises as reliability increases and, on the other hand, a degree of the video signal process falls off as the reliability decreases. In the case of performing the video signal process using a motion vector, even when a motion vector lies out of a motion vector search range (block matching range), the video signal process according to the motion vector detection precision can be performed.
    Type: Application
    Filed: February 20, 2008
    Publication date: January 21, 2010
    Applicant: SONY CORPORATION
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi
  • Patent number: 7630007
    Abstract: According to the invention, a driving method for a solid-state imaging device includes: a first holding step of holding electric charges which cause smear and are obtained from incident light in a first holding unit, in a previous field period which appears temporally earlier than a predetermined field; a second holding step of holding signal charges obtained from the incident light in a second holding unit, in the predetermined field period; a first equalization step of equalizing electric charges which cause smear and are obtained from the incident light in a subsequent field period which appears later than the predetermined field and the electric charges which cause smear and are held by the first holding unit; and a first subtraction step of subtracting the electric charges which cause smear and are equalized in the first equalization step from the signal charges which are held by the second holding unit.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: December 8, 2009
    Assignee: Panasonic Corporation
    Inventor: Ichiro Murakami
  • Publication number: 20090213573
    Abstract: A light source unit is used in a multiply combined manner, and includes a light source element having a substrate and one or more light emitting elements disposed on the substrate. The light source unit is configured such that when a plurality of the light source units are arranged in cascade, the light source element in the light source unit comes to in electric connection with another light source element in an adjacent light source unit. Thereby, the plurality of light source units may emit light at the same time. Thus, the structure similar to rod-shaped light source such as CCFL is achieved.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 27, 2009
    Inventors: Norimasa FURUKAWA, Hiroshi Murayama, Ichiro Murakami
  • Publication number: 20090184916
    Abstract: The present invention provides an image display apparatus capable of reducing a hold blur in accordance with circumstances. A black inserting process for inserting a black display area into a display screen in a liquid crystal display panel 2 according to at least one of substance of a video signal in an original frame and brightness of viewing environment for user is performed. Concretely, for example, when a video signal in the original frame is a cinema signal (film signal), the black inserting process of inserting a black display area into the display screen in the liquid crystal display panel 2 is performed. More concretely, for example, a backlight driving unit 71 performs switching drive between turn-on and turn-off of a backlight 72 so that the black inserting process is performed on the display screen in the liquid crystal display panel 2.
    Type: Application
    Filed: February 20, 2008
    Publication date: July 23, 2009
    Applicant: Sony Corporation
    Inventors: Shinichiro Miyazaki, Ichiro Murakami, Toru Nishi