Patents by Inventor Shigekatsu Tagami

Shigekatsu Tagami 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: 8115713
    Abstract: An image processing apparatus including a frame doubling processing part for generating a doubled image signal, a false impulse drive processing part for outputting a current image signal after dividing the doubled image signal, a first frame memory for outputting the current image signal as a previous image signal delayed by one sub-frame, a correction processing part for correcting a gradation level of the current image signal after the previous image signal and the current image signal being input thereto, a second frame memory for outputting a delayed doubled image signal from the doubled image signal, and a movement detector for outputting a movement detection signal after the delayed doubled image signal and the doubled image signal being input thereto is provided, wherein the correction processing part corrects the gradation level of the current image signal when the movement detection signal is a signal indicating a dynamic image.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: February 14, 2012
    Assignee: Sony Corporation
    Inventor: Shigekatsu Tagami
  • Publication number: 20090009509
    Abstract: An image processing apparatus including a frame doubling processing part for generating a doubled image signal, a false impulse drive processing part for outputting a current image signal after dividing the doubled image signal, a first frame memory for outputting the current image signal as a previous image signal delayed by one sub-frame, a correction processing part for correcting a gradation level of the current image signal after the previous image signal and the current image signal being input thereto, a second frame memory for outputting a delayed doubled image signal from the doubled image signal, and a movement detector for outputting a movement detection signal after the delayed doubled image signal and the doubled image signal being input thereto is provided, wherein the correction processing part corrects the gradation level of the current image signal when the movement detection signal is a signal indicating a dynamic image.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 8, 2009
    Applicant: Sony Corporation
    Inventor: Shigekatsu Tagami
  • Patent number: 5592239
    Abstract: A projector device, which is simple and small and able to display images brighter and also able to improve the usefulness considerably. The effective reflecting lights of the mirror deflection type light modulators are focused into images at the position right in front of the projection lens, and the effective reflection lights are partly turned and focused on the two-dimensional position detector means for detecting the vertical and horizontal positions of the formed images.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: January 7, 1997
    Assignees: Sony Corporation, Texas Instruments Corporation
    Inventors: Nobuyuki Hara, Shigekatsu Tagami
  • Patent number: 5339118
    Abstract: A tone correcting apparatus for an image display apparatus is disclosed. The apparatus includes a test signal generating circuit for generating a test signal, a memory for outputting tone correction data depending upon the test signal, a modulating circuit for modulating the light from a light source depending upon the tone correction data, a detecting circuit for detecting the modulated light from the modulated circuit, and a control circuit for calculating correction data depending upon a detected signal output from the detecting circuit. The correction data is stored in memory. Also disclosed is a laser display apparatus in which a laser beam is modulated according to a video signal before being displayed. An synchronizing separating circuit separates a synchronizing signal from the video signal. A selecting circuit selects between a test signal generated by a test signal generating circuit and the video signal depending upon the synchronization signal.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: August 16, 1994
    Assignee: Sony Corporation
    Inventor: Shigekatsu Tagami