Patents by Inventor Sunao Hirata

Sunao Hirata 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).

  • Graphic display processing apparatus for improving speed and efficiency of a window system
    Patent number: 5583985
    Abstract: A graphic display processing apparatus which includes a CPU, a VRAM and a display controller, a data operation unit, an access cycle generator, an address generator and a sequential transfer sequencer. The graphic display processing apparatus also includes a mask pattern generator, dot mask generator and data position transformer. In the graphic display process apparatus block transfer and character drawing are reformed at high speeds, thereby making a window system more practical and offering comfortable operational environment to the user.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: December 10, 1996
    Assignees: Hitachi, Ltd., Hitachi Software Engineering Co., Ltd., Hitachi Chubu Software, Ltd.
    Inventors: Tomohisa Kohiyama, Jun Kitahara, Sunao Hirata, Seiji Oyama, Takumi Soen, Ichiro Ote
  • Multi-window system and display method for controlling execution of an application for a window system and an application for a non-window system
    Patent number: 5367628
    Abstract: A multi-window system in multi-window environment includes a CPU for executing an application program for a window system and an application program for a non-window system for producing a display using the whole display screen, a standard-resolution display hardware for the non-window system, a high-resolution display system for the window system, and a window display component for displaying a picture of the application program for the non-window system corresponding to the standard-resolution hardware in window. High-speed graphics display of an existing application program can be attained in the window. The entire display picture of the existing application program can be displayed in the window at one time and the application program can be operated without scrolling thereof.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: November 22, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Ichiro Ote, Masataka Okayama, Makoto Sano, Masanori Hashio, Katsuya Takanashi, Jun Kitahara, Sunao Hirata
  • Graphic display processing apparatus and method for improving the speed and efficiency of a window system
    Patent number: 5353403
    Abstract: A graphic display processing apparatus which includes having a CPU, a VRAM and a display controller, a data operation unit, an access cycle generator, an address generator and a sequential transfer sequencer. The graphic display processing apparatus also includes a mask pattern generator, dot mask generator and data position transformer. In the graphic display processing apparatus block transfer and character drawing are performed at high speeds, thereby making a window system more practical and offering comfortable operational environment to the user.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: October 4, 1994
    Assignees: Hitachi Chubu Software, Ltd., Hitachi, Ltd., Hitachisoftware Eng. Co., Ltd.
    Inventors: Tomohisa Kohiyama, Jun Kitahara, Sunao Hirata, Seiji Oyama, Takumi Soen, Ichiro Ote