Patents by Inventor Toshinori Hamada

Toshinori Hamada 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).

  • Cutoff control with on screen display circuit for adjusting white balance
    Patent number: 6891564
    Abstract: An apparatus for controlling aging, cathode ray tube aging including a microcontroller generating brightness level data for aging of the cathode to a video input signal; a video preamplifier connected to the microcontroller receiving the brightness level data by the video input signal and mixing a host video signal to generate a video output signal wherein the brightness level of the video output signal being controlled by the microcontroller; a cutoff control coupled to the video preamplifier receiving brightness data of the video output signal and setting a proper brightness level of a cathode; and a voltage control not coupled to the microcontroller preset for a an initial brightness level of the cathode during aging.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: May 10, 2005
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Shin Fujimori, Hiyouki Nakazono, Toshinori Hamada
  • Cutoff control with on screen display circuit for adjusting white balance
    Publication number: 20030103143
    Abstract: An apparatus for controlling aging, cathode ray tube aging including a microcontroller generating brightness level data for aging of the cathode to a video input signal; a video preamplifier connected to the microcontroller receiving the brightness level data by the video input signal and mixing a host video signal to generate a video output signal wherein the brightness level of the video output signal being controlled by the microcontroller; a cutoff control coupled to the video preamplifier receiving brightness data of the video output signal and setting a proper brightness level of a cathode; and a voltage control not coupled to the microcontroller preset for a an initial brightness level of the cathode during aging.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Shin Fujimori, Hiyouki Nakazono, Toshinori Hamada
  • Image-size varying apparatus, image-size varying method, and monitor apparatus
    Patent number: 6366263
    Abstract: The size of an image displayed on a tube surface is varied while maintaining the aspect ratio thereof at a constant. First, if there is information of an arbitrary horizontal-size variable parameter and a vertical-size variable parameter because of parameters supplied previously by adjustments, the horizontal/vertical size of a raster formed at that time can be obtained, and the aspect ratio thereof can be obtained on the basis of the horizontal/vertical size of the raster. Then, during a zoom mode, the vertical-size variable parameter corresponding to the updated horizontal-size variable parameter is computed so that the detected aspect ratio becomes constant, and the raster size is changed in accordance with these values.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: April 2, 2002
    Assignee: Sony Corporation
    Inventors: Shigeru Takasu, Toshinori Hamada, Motosuke Irie, Satoru Suzuki