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. 08, 1992
Filed:
Oct. 25, 1989
Katsuyuki Sato, Akishima, JP;
Tadahiko Nishimukai, Sagamihara, JP;
Kunio Uchiyama, Hachioji, JP;
Hirokazu Aoki, Hachioji, JP;
Susumu Hatano, Musashino, JP;
Kanji Oishi, Koganei, JP;
Hiroshi Fukuta, Kodaira, JP;
Takashi Kikuchi, Akishima, JP;
Yasuhiko Saigou, Fuchuu, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi VLSI Engineering Corp., Tokyo, JP;
Abstract
In a cache memory setup, a buffer register is provided to accommodate the data read from a data memory. Between the buffer register and the data memory is connected a selector. This selector selectively transfers to the buffer register part of the data read from the data memory. The remaining part of the data is replaced with appropriate data for transfer to the buffer register. This arrangement provides the cache memory with a partial-write function.