Patents by Inventor Hiroyuki Furukawa

Hiroyuki Furukawa 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: 8446526
    Abstract: It is an object to suppress a disturbance or distortion of an insertion image in the vicinity of an effective image edge portion such as an edge portion of a screen or the like caused by a moving compensation type frame rate conversion (FRC). An image processing device is provided with a moving vector detection circuit (2) for detecting a moving vector of an input image signal, an effective image edge portion judging circuit (5) for judging if a moving vector detecting position is adjacent to the effective image edge portion, and a vector switching circuit (3) for switching a vector in accordance with the judging result. The vector switching circuit (3) fixes the vector to 0 vector in the case where the moving vector detecting position is adjacent to the effective image edge portion. In the case where the position is in other region, the vector switching circuit (3) outputs the moving vector detected by the moving vector detection circuit (2) to an insertion vector allocation circuit (4).
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: May 21, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Furukawa, Kenichiroh Yamamoto, Takashi Yoshii, Masafumi Ueno, Yasuhiro Yoshida
  • Patent number: 8432717
    Abstract: Provided is a semiconductor integrated circuit including: an anti-fuse element that electrically connects a first node and a first power supply terminal when data is written and electrically disconnect the first node and the first power supply terminal when data is not written; a first switch circuit that is connected between the first node and a first data line applied with a predetermine first voltage, and enters an off state from an on state according to a first control signal; and a detection part that detects write data of the anti-fuse element according to whether a voltage of the first node is substantially the same as the first voltage or substantially the same as a supply voltage of the first power supply terminal when the first switch circuit enters the off state.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: April 30, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Hiroyuki Furukawa, Isao Naritake
  • Patent number: 8395700
    Abstract: The quality of moving picture image with a large moving amount is prevented from deterioration due to moving compensation type frame rate conversion (FRC) processing. The image display device is comprised of an FRC unit (10) that interpolates an image signal subjected to moving compensation processing between frames so as to convert the number of frames of the input image signal, a moving amount judging unit (14) that judges whether a moving amount of the input image signal between the frames is larger than a predetermined value or not, and a control unit (15). The FRC unit (10) is provided with a moving vector detecting unit (11e) that detects a moving vector between the frames of the input image signal, an interpolation vector evaluating unit (11f) that allocates an interpolation vector between the frames on the basis of the moving vector information and an interpolation frame generating unit (12d) that generates an interpolation frame from the interpolation vector.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 12, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masafumi Ueno, Kenichiroh Yamamoto, Takashi Yoshii, Hiroyuki Furukawa, Yasuhiro Yoshida
  • Patent number: 8358373
    Abstract: In an image displaying device provided with a frame rate conversion (FRC) portion, the image quality deterioration in a moving image likely to include a plurality of the same consecutive images due to a FRC processing is prevented. The FRC portion (100) of the image displaying device includes a motion vector detecting portion (101) that detects motion vector information from an input image signal, an interpolation frame generating portion (106) that generates interpolation frames based on the motion vector information obtained by the motion vector detecting portion (101) and a same image detecting portion (105) that detects a case where the same images continue in the input image signal.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: January 22, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenichiroh Yamamoto, Hiroyuki Furukawa, Masafumi Ueno, Yasuhiro Yoshida
  • Patent number: 8345071
    Abstract: In a display control circuit of this invention, a write gray scale level determining part outputs write gray scale level data for performing overshoot drive on a liquid crystal display device. Moreover, an achievable gray scale level determining part outputs achievable gray scale level data indicating a gray scale level which achieves after a lapse of one frame. Further, an error noise predicting part compares, with a predetermined threshold value, predicted values as differences between gray scale level values of plural pieces of input image data and a mean gray scale level value of these gray scale level values to control a data selecting part such that when at least one of the predicted values exceeds the threshold value, the data selecting part gives, to an image compressing part, the input image data rather than the achievable gray scale level data predicted that a decoding error becomes large. This configuration allows suppression or elimination of after-image noise.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: January 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryoji Sakurai, Hiroyuki Furukawa
  • Publication number: 20120314969
    Abstract: An image processing apparatus where noise in a dark region indicated by an input image signal may be reduced and perceived fineness of texture may be enhanced is provided. It includes: a high pass filter (11) that extracts a high frequency component from an input image signal; a sign determining unit (12) that determines the sign of the high frequency component; a brightness value calculator (14) that determines the brightness value of the input image signal; and a parameter determining unit (gain value determining unit) (13) that determines a parameter (for example, a gain) to be used in the image processing for the high frequency component processor based on the brightness value and the sign information.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 13, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Naoko Kondoh, Shinji Nakagawa
  • Publication number: 20120313986
    Abstract: Provided is an image display device having pixels each of which includes sub-pixels of four or more colors and requires fewer dither matrices. This image display device includes a display section in which color filters of sub-pixel colors that are M colors in total including three principal colors of red, green, and blue, as well as at least one color other than the three principal colors are arranged regularly; and a gray-scale processing section (50) that performs gray-scale processing by a dither method with respect to an input image signal. The M sub-pixel colors are divided into N groups (G1 to GN) in such a manner that there is at least one group to which two or more colors belong. The gray-scale processing section (50) includes dither matrix storage ROMs (541 to 54N) that store N combinations of dither matrices corresponding to the N groups, respectively.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 13, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shinji Nakagawa, Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Naoko Kondoh
  • Publication number: 20120313843
    Abstract: A display device according to the present invention includes a plurality of pixels arranged in a matrix. Each of the plurality of pixels is formed of four or five types of sub pixels that display different colors from each other. In each pixel, a first sub pixel that displays a color having the highest luminance and a second sub pixel that displays a color having the second highest luminance are located so as not to be adjacent to each other. The four or five types of sub pixels include a plurality of display units, each of which is capable of displaying a specific color and is formed of one sub pixel or two or more continuous sub pixels. In the display device according to the present invention, when an input image has a resolution higher than a display resolution defined by a total number of the plurality of pixels, each of the plurality of display units is usable as a virtual pixel for providing display.
    Type: Application
    Filed: February 15, 2011
    Publication date: December 13, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Naoko Kondoh, Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Shinji Nakagawa, Yasuhiro Yoshida
  • Patent number: 8331744
    Abstract: The optical switch is capable of supervising the performance of optical switching in standby channels, and includes: a collimator unit; an optical splitter; a light-gathering unit; and a rotatable mirror. The optical switch further includes: a mirror angle controlling unit which controls a reflection face angle of the rotatable mirror for each wavelength to switch ON/OFF of the light beam coupling to the optical output port for each wavelength reflected, and determines an optical output port position outputting light beams of the reflected wavelengths; and a monitor unit, installed on a return path of a light beam, which monitors a light beam whose optical coupling is made OFF.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: December 11, 2012
    Assignee: Fujitsu Limited
    Inventors: Hiroyuki Furukawa, Nobuhiro Fukushima
  • Patent number: 8325272
    Abstract: It is an object to prevent the image quality deterioration of a moving image likely to include a plurality of the same consecutive images such as 2-3 or 2-2 pulldown video due to the motion-compensated frame rate conversion (FRC) processing. An image displaying device is provided with an FRC portion (10) for converting the number of frames in an input image signal by interpolating an image signal to which a motion compensation processing has been given between the frames in the input image signal, a pulldown detecting portion (14) for detecting whether the input image signal is an image signal to which pulldown conversion has been performed, and a controlling portion (15).
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: December 4, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takeshi Mori, Seiji Kohashikawa, Hiroyuki Furukawa, Masafumi Ueno, Kenichiroh Yamamoto, Takashi Yoshii
  • Publication number: 20120301047
    Abstract: Provided is an image processing apparatus that obtains an effect of improving perceived definition even when an input image signal does not include much of a high range component.
    Type: Application
    Filed: February 22, 2011
    Publication date: November 29, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazuyoshi Yoshiyama, Hiroyuki Furukawa, Naoko Kondoh, Shinji Nakagawa
  • Patent number: 8319898
    Abstract: An image processing device, method, an image display device and method which can obtain a high-definition display image by properly controlling processing of reducing the blur of a displayed image caused by the time integration effect of an image sensor. The image display device comprises a motion detection part (1) which detects the moving amount of an input image signal, and an edge emphasis part (2) which subjects the input image signal to edge emphasis processing, and the image display device increases an edge emphasis degree of edge emphasis processing to an area where the moving amount of the input image signal is large.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: November 27, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masafumi Ueno, Kenichiroh Yamamoto, Takashi Yoshii, Hiroyuki Furukawa, Yasuhiro Yoshida, Ikuko Tsubaki
  • Publication number: 20120223055
    Abstract: Upper and lower wire guides in a wire-cut electric discharge machine are moved until a wire electrode contacts with a workpiece, and after the contact, the upper and lower wire guides are moved backward to a position A which is away from the contact point at a fixed distance. Then, the upper wire guide is moved until the wire electrode contacts with the workpiece and the upper wire guide is returned to the position A. Subsequently, the lower wire guide is moved until the wire electrode contacts with the workpiece and the lower wide guide is returned to the position A. A coordinate value on the position where the wire electrode contacts with the workpiece is calculated by using position detection values which are obtained in the above respective steps, and board thickness is calculated from the coordinate value.
    Type: Application
    Filed: November 3, 2011
    Publication date: September 6, 2012
    Applicant: FANUC CORPORATION
    Inventors: Akiyoshi KAWAHARA, Hiroyuki FURUKAWA
  • Patent number: 8228427
    Abstract: It is an object to prevent the image quality deterioration of a moving image likely to include a plurality of the same consecutive images such as a movie video image or a CG video image due to the motion-compensated frame rate conversion (FRC) processing. An image displaying device is provided with an FRC portion (10) for converting the number of frames in an input image signal by interpolating an image signal to which a motion compensation processing has been given between the frames in the input image signal, a controlling portion (14) for controlling each portion according to an image tone mode selected by a user.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: July 24, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takeshi Mori, Seiji Kohashikawa, Hiroyuki Furukawa, Masafumi Ueno, Kenichiroh Yamamoto, Takashi Yoshii
  • Publication number: 20120113164
    Abstract: A liquid crystal data calculation section forms, on the basis of input image data, liquid crystal data to display an image on a liquid crystal panel. In at least one example embodiment, an LED data calculation section forms, on the basis of the input image data, LED data for adjusting an amount of light of an LED backlight. An LED control section controls an amount of an output current of an LED power source on the basis of the LED data, and includes a protection function of limiting the amount of the output current so that the amount of the output current does not exceed a predetermined upper limit. In a case where the amount of the output current of the LED power source is reduced to the upper limit by the LED control section, a liquid crystal transmittance correction section corrects the liquid crystal data and increases transmittance so as to compensate reduction in luminance of the backlight.
    Type: Application
    Filed: March 31, 2010
    Publication date: May 10, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Yasuhiro Ohki, Masafumi Ueno, Takashi Ishizumi, Kenji Takase
  • Publication number: 20120075274
    Abstract: A display device includes: an LED control section (4) for carrying out control in which (i) an output luminance of an LED (10) whose measured luminance is deviated from a reference luminance or (ii) output luminances of peripheral LEDs (10) which are provided around the LED (10) is or are corrected, respectively, by using control information of the plurality of LEDs, which control information contains (a) information on measured luminances of the plurality of LEDs, the information being obtained by the plurality of photosensors (11) and (b) positional information of the plurality of LEDs, the positional information being obtained by the plurality of photosensors (11), and a liquid crystal display control section (3) for controlling, based on (i) video signals which have been subjected to the video signal process and are supplied from a video signal processing section (2) and (ii) the control information supplied from the LED control section (4), (a) levels of video signals to be supplied to pixels correspondi
    Type: Application
    Filed: February 17, 2010
    Publication date: March 29, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masafumi Ueno, Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Yasuhiro Ohki, Kenji Takase, Takashi Ishizumi
  • Publication number: 20120056296
    Abstract: A semiconductor device comprises an active region including a core circuit forming region and a buffer forming region, and a fuse element forming region arranged on a corner of the active region and to be able to be electrically fused. It is possible to arrange the fuse element without forming the fuse in the core circuit forming region by arranging the fuse element forming region at the corner of the active region.
    Type: Application
    Filed: November 15, 2011
    Publication date: March 8, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Hiroyuki FURUKAWA
  • Patent number: 8080860
    Abstract: A semiconductor device comprises an active region including a core circuit forming region and a buffer forming region, and a fuse element forming region arranged on a corner of the active region and to be able to be electrically fused. It is possible to arrange the fuse element without forming the fuse in the core circuit forming region by arranging the fuse element forming region at the corner of the active region.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: December 20, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Hiroyuki Furukawa
  • Publication number: 20110204215
    Abstract: An optical device includes: an optical component; a case air-sealed, and made of metal, the optical component being secured within the case; and a lens provided within the case, and positionally adjusted in consideration of a deformation of the case air-sealed, light emitted from the optical component passing through the lens or light traveling to the optical component passing through the lens.
    Type: Application
    Filed: January 25, 2011
    Publication date: August 25, 2011
    Applicant: Fujitsu Optical Components Limited
    Inventors: Ryuichi YOSHIDA, Kohei Shibata, Toshiya Kishida, Hiroyuki Furukawa
  • Patent number: 7965303
    Abstract: In an image displaying apparatus including a motion compensated rate converting (FRC) portion, deterioration of image quality is prevented in an image having a high-speed region and a low-speed region mixed. The FRC portion includes a motion vector detecting portion 11e and an interpolation frame generating portion 12b. The motion vector detecting portion 11e includes a first region detecting means 112e1 that detects a first region (high-speed region) including a motion amount equal to or greater than a first predetermined amount from an input image signal, a second region detecting means 112e2 that detects a second region (low-speed region) including a motion amount equal to or less than a second predetermined amount from the input image signal, and a third region detecting means 113e that detects a still region from an inter-frame difference of the input image signal.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: June 21, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiharu Hanaoka, Yasuhiro Yoshida, Masafumi Ueno, Hiroyuki Furukawa, Kenichiroh Yamamoto, Takashi Yoshii