US Patent No: 5,987,476

Number of patents in Portfolio can not be more than 2000

File reading method and file requesting client device in client-server information communication system

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Abstract

A file reading scheme in a client-server information communication system, capable of efficiently utilizing files cached into a local file storage region of the client regardless of an environment under which the client is operated. Whether the client is in a state in which an access to the server according to a specified protocol is possible or not is judged when each file transfer request is issued at the client. Then, an access to the server according to the specified protocol is made when it is judged that the client is in a state in which an access to the server according to the specified protocol is possible. On the other hand, a requested file specified by each file transfer request is read from files cached in the local file storage region when it is judged that the client is in a state in which an access to the server according to the specified protocol is not possible.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KABUSHIKI KAISHA TOSHIBATOKYO36116

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Hiroku Tokyo, JP 1 37
Imai, Toru Natori, JP 58 643
Shimokawa, Toshihiko Kanagawa, JP 70 148
Yoshida, Hideki Kawasaki, JP 94 679

Cited Art

Patent Info (Count) # Cites Year
 
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COMTECH EF DATA CORPORATION (1)
5,682,514 Apparatus and method for increased data access in a network file oriented caching system 21 1995
 
HITACHI, LTD. (1)
5,559,984 Distributed file system permitting each user to enhance cache hit ratio in file access mode 35 1994
 
INTEL CORPORATION (1)
5,873,100 Internet browser that includes an enhanced cache for user-controlled document retention 54 1996
 
MICROSOFT CORPORATION (1)
5,802,304 Automatic dialer responsive to network programming interface access 119 1996
 
NOVELL INTELLECTUAL PROPERTY HOLDINGS, INC. (1)
5,742,820 Mechanism for efficiently synchronizing information over a network 60 1995
 
UNISYS CORPORATION (1)
5,864,837 Methods and apparatus for efficient caching in a distributed environment 89 1996

Patent Citation Ranking

Forward Cites

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