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US 5,317,629 AGranted
Data communication apparatus connectable with a plurality of telephone sets and a telephone line
AssigneeCanon Kabushiki Kaisha
InventorTsunehiro Watanabe
Life of this patent
Estimating the term…
Abstract
A communication apparatus selectively uses plural telephone sets and a line. The communication apparatus includes a circuit for detecting a calling signal from a line, and a control circuit for allowing a specific telephone set to receive an incoming call and ring among plural telephone sets on receipt of an incoming call.
Claims11
A data communication apparatus comprising:
- first switch means for selectively connecting to a plurality of telephone sets;
- second switch means for selectively connecting a data communication circuit and said first switch means to a telephone line;
- setting means connected to the telephone sets for manually setting, in advance, any one of the telephone sets to be rung in response to an incoming call;
- ringing means connected to the telephone sets for ringing the one of the plurality of telephone sets set by said setting means in response to the incoming call;
- and
- responding means connected to the telephone sets for responding to the incoming call by connecting the one of the plurality of telephone sets to said first switch means, when the one of the plurality of telephone sets is rung and off-hooked.
3 more elements
A data communication apparatus comprising:
- connecting means for selectively connecting a data communication circuit and a plurality of telephone sets to a communication line;
- setting means connected to the telephone sets for manually setting, in advance, any one of the telephone sets to be rung in response to an incoming call;
- ringing means connected to the telephone sets for ringing the one of the plurality of telephone sets set by said setting means in response to the incoming call;
- and
- responding means connected to the telephone sets for responding to the incoming call by connecting the one of the plurality of telephone sets to the communication line by said connecting means, when the one of the plurality of telephone sets is rung and off-hooked.
2 more elements
Dependencies are inferred from the claim text.