Highly reliable online system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5379418
SERIAL NO

08129960

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A highly reliable online system is disclosed which is provided with a backup computer center (sub-online system) in addition with an original computer center (main online system) in order to improve the reliability of the online system. With respect to the database, the main online system is provided with an original database (main database) while the sub-online system is provided with a backup database (sub-database) which is a duplicate of the main database. The main online system and the sub-online system are connected through a transmission path. Information on an update performed in the main database is transferred to the sub-online system through the transmission path to thereby update the sub-database in a manner similar to the main database. Terminal units are normally connected to the main online system, wherein the main database is updated by transactions inputted from the terminals. When a failure occurs in the main online system, the terminals are changed over to be connected to the sub-online system to allow transaction processing to be continued. Further, there are provided a control system for synchronizing contents between the main database and the sub-database when the original computer center is changed over to the backup computer center, a recovery system for recovering the main database or the sub-database from failures and an integration system for integrating both the main database and the sub-database when they are independently updated due to a failure in the transmission path or the like.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI, LTD.TOKYO13769
The Sanwa Bank LimitedTOKYO3

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukagawa, Daisuke Kashiwa, JP 3 278
Kouguchi, Yukio Tokyo, JP 3 278
Mizoguchi, Masamichi Yokohama, JP 3 278
Murabayashi, Satoshi Yokohama, JP 3 278
Nakagawa, Koichi Yokohama, JP 63 612
Ogawa, Kazuaki Osaka, JP 10 301
Ogino, Kouji Ichihara, JP 15 387
Shimazaki, Hiroyuki Tokyo, JP 5 295
Shimizu, Takatoshi Kawasaki, JP 4 293
Suzuki, Nobuyuki Yokohama, JP 262 2613
Tanaka, Shinji Tokyo, JP 242 2279
Watanabe, Yoshikuni Yokohama, JP 5 291
Yamasaki, Hajime Kawasaki, JP 4 286
Yamashita, Tetsuo Matsudo, JP 29 521
Yano, Tatsushi Abiko, JP 3 278

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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FUJITSU LIMITED (1)
* 5123099 Hot standby memory copy system 60 1988
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
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