Hitachi, Ltd.

Hitachi Chubu Software, Ltd.

Hitachi Software Engineering Company, Ltd.

Hitachisoftware Eng. Co., Ltd.

Sunao Hirata

Jun Kitahara

Ichiro Ote

Tomohisa Kohiyama

Seiji Oyama

Takumi Soen

Makoto Sano

Masataka Okayama

Katsuya Takanashi

Masanori Hashio

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.

Graphic display processing apparatus for improving speed and efficiency

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.

Multi-window system and display method for controlling execution of an

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.

Graphic display processing apparatus and method for improving the speed

Growing community of inventors

Seto, Japan

Sunao Hirata