The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 1994
Filed:
Oct. 12, 1990
Tadashi Fukushima, Hitachi, JP;
Shigeru Matsuo, Hitachi, JP;
Shoji Yoshida, Zama, JP;
Tooru Komagawa, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a graphic processing system, there are provided a main memory, a buffer containing a bit map memory for holding display data, a central processing unit for performing a data process involving a translation from a virtual address into a physical address to access the main memory, a graphic processor connected to the main memory and buffer, for processing data into a display form, and a system bus interface connected to the central processing unit, main memory and graphic processor, capable of exchanging the data among them. Furthermore, the graphic processing system includes a drawing processing unit connected to the system bus interface, for translating the virtual address into the physical address to access the main memory and to process the data, a bus arbitrator for performing arbitration between demands for using the interface given from the central processing unit add graphic processor, and a suspend circuit for asserting a signal requesting that the interface is released to the central processing unit.