US Patent No: 5,007,017

Number of patents in Portfolio can not be more than 2000

Method and apparatus for data communication through composite network

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Importance

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Abstract

Data communication through a composite network constituted by a plurality of mutually connected individual networks. When a center connected to a first network such as a wide-area telephone network and DDX for collecting information such as maintenance/management information performs data communication with a plurality of work stations connected to a network such as LAN, the information collecting center transmits a composite command containing collectively assembled addresses of the object work stations and operation commands to these stations. The composite command is disassembled in the second network. According to one method, the command is executed by the relevant work station upon reception of the composite command which is subsequently transferred to the succeeding station.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI, LTD.TOKYO32320

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Hideaki Tokyo, JP 83 628

Cited Art

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (2)
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LINOTYPE COMPANY (1)
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PARADYNE CORPORATION (1)
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UNISYS CORPORATION (1)
4,413,258 Interconnection for local area contention networks 17 1981
 
VITALINK COMMUNICATIONS CORPORATION (1)
4,706,081 Method and apparatus for bridging local area networks 153 1984

Patent Citation Ranking

Forward Cites

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INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
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INTERNATIONAL COMPUTERS LIMITED (1)
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NETRATINGS CORPORATION (1)
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SONY ELECTRONICS INC. (1)
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THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY (1)
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
5,313,580 Telecommunications interface apparatus and method 13 1992
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