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US 5,673,117 AGranted
Data communication apparatus with detachable network control unit
AssigneeCanon Kabushiki Kaisha
InventorsYosuke Ezumi, Toshio Kenmochi, Hisashi Toyoda, Takeshi Tsukamoto
Life of this patent
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Abstract
A data communication apparatus includes connection means for electrically connecting a detachable network control unit which is an interface for connecting a communication line and control means for controlling the network control unit through the connection means.
Claims54
A data communication apparatus arranged in a first housing, comprising:
- connection means for electrically connecting an external network control unit which is an interface for connecting a communication line, the network control unit being detachable to said data communication apparatus and being arranged in a second housing different from the first housing of said data communication apparatus;
- and
- control means for controlling the network control unit through said connection means, said control means being arranged in said first housing.
A data communication apparatus arranged in a first housing, comprising:
- first connection means for electrically connecting an external network control unit which is an interface for connecting communication line, the network control unit being detachable to said data communication apparatus and being arranged in a second housing different from the first housing of said data communication apparatus;
- second connection means for connecting a mobile communication terminal;
- and
- control means for controlling the network control unit through said first connection means, said control means being arranged in said first housing.
1 more element
A data communication system comprising:
- an external network control unit for connecting a communication line, said network control unit being detachable to a main body arranged in a first housing, said network control unit further being arranged in a second housing different from the first housing of the main body, the main body including:
- (1) connection means for electrically connecting said network control unit;
- and
- (2) control means for controlling said network control unit through said connection means, said control means being arranged in said first housing.
1 more element
A data communication apparatus arranged in a first housing, comprising:
- a connector for electrically connecting an external network control unit which is an interface for connecting a communication line, the network control unit being detachable to said data communication apparatus and being arranged in a second housing different from the first housing of said data communication apparatus;
- and
- a controller for controlling the network control unit through said connector, said controller being arranged in said first housing.
A data communication apparatus arranged in a first housing, comprising:
- a first connector for electrically connecting an external network control unit which is an interface for connecting communication line, the network control unit being detachable to said data communication apparatus and being arranged in a second housing different from the first housing of said data communication apparatus;
- a second connector for connecting a mobile communication terminal;
- and
- a controller for controlling the network control unit through said first connector, said controller being arranged in said first housing.
1 more element
A data communication system comprising:
- an external network control unit for connecting a communication line, said network control unit being detachable to a main body arranged in a first housing, said network control unit further being arranged in a second housing different from the first housing of the main body, the main body including:
- (1) a connector for electrically connecting said network control unit;
- and
- (2) a controller for controlling said network control unit through said connector, said controller being arranged in said first housing.
1 more element
A data communication apparatus arranged in a first housing, comprising:
- a modem;
- and
- a connection for connecting a network control unit which is an interface for connecting a subscriber line, the network control unit being detachable to said data communication apparatus and being arranged in a second housing different from said first housing,
- wherein said data communication apparatus does not have the network control unit in said first housing, and the second housing does not have said modem.
1 more element
A data communication system comprising:
- a modem arranged a first housing;
- and
- a network control unit for connection a subscriber line, said network control unit being detachable to said modem arranged in said first housing, said network control unit further being arranged in a second housing different from said first housing, said first housing including a connector for connecting said network control unit to said modem, wherein said first housing does not include said network control unit, and said second housing does not include said modem.
Dependencies are inferred from the claim text.