Patents by Inventor Kenichiro Hosoi

Kenichiro Hosoi 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).

  • Convergence correcting device
    Patent number: 5596248
    Abstract: A convergence correcting device in a CRT display apparatus is free from any necessity of adjustment of a convergence correction rate even if a raster size is changed. The convergence correcting device generates a modified blanking pulse having a pulse width which becomes larger as an amplitude of a deviated voltage becomes larger, and generates a convergence correction signal in accordance with the modified blanking pulse.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: January 21, 1997
    Assignee: Pioneer Electronic Corporation
    Inventors: Kenichiro Hosoi, Takashi Iwami
  • Convergence adjusting apparatus capable of independently performing convergence adjustment on one adjustment point without affecting the convergence of the remaining adjustment points
    Patent number: 5576774
    Abstract: In a convergence adjusting apparatus, there are generated waveform signals for adjustment, each level of which becomes zero at a plurality of adjustment points on a display except for one adjustment point. The levels of the waveform signals for adjustment are adjusted in accordance with convergence adjusting signals, and a convergence deflection yoke is supplied with the waveform signals having adjusted levels. In the convergence adjusting apparatus, only a beam spot at any adjustment point subjected to adjustment is moved when convergence adjustment is effected, without affecting adjustment for other adjustment points.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: November 19, 1996
    Assignee: Pioneer Electronic Corporation
    Inventors: Kenichiro Hosoi, Junya Ochi, Nobuaki Kobayashi