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:
Sep. 18, 1990
Filed:
Dec. 04, 1987
Applicant:
Inventors:
Atsushi Kiuchi, Kunitachi, JP;
Kenji Kaneko, Sagamihara, JP;
Jun Ishida, Koganei, JP;
Tetsuya Nakagawa, Koganei, JP;
Yoshimune Hagiwara, Hachioji, JP;
Takashi Akazawa, Musashimurayama, JP;
Tomoru Sato, Kodaira, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi VLSI Engineering Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ; 3642328 ; 3642432 ; 3642702 ; 3642716 ;
Abstract
In a single chip processor which can be provided with an extended program memory, a high-speed access can be executed without being restricted by the access time for the external program memory when an internal program memory is employed, by varying the effective instruction cycle, and thus a high-speed processing performance for a single chip processor of a stored program type can be attained.