Communication system with remotely controllable signal receiving means
AssigneeNEC Corporation
InventorKentaro Toudo
Life of this patent
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Abstract
A communication system having remotely controllable signal receiving means for automatically setting the receive function for a start-signal transmitted from a terminal device and for changing the receive function when the terminal device is changed. At start-up, a main processor reads start-signal type information for each of the terminal devices from a main memory. The line circuits associated with the respective terminal devices are then set with a start-signal receive function according to the start-signal type information. When a terminal device is added or changed, the start-signal receive function is changed by merely updating the start-signal type information stored in the main memory.
Claims5
A communication system with remotely controllable signal receiving means comprising:
- first means having a receive function responsive to a start-signal from a terminal device connected thereto via a communication line, said first means arranged at one of a plug-in or plug-out states wherein said first means is connected to the terminal device in the plug-in state and is not connected to the terminal device in the plug-out state;
- second means storing start-signal type information of the terminal device in a manner indexable with accommodation location information of the terminal device;
- third means for independently monitoring the plug-in and plug-out states of said first means and detecting a change in the states;
- and
- fourth means for controlling an initial setting of the receive function of said first means on the basis of the start-signal type information stored in said second means, said fourth means further being responsive to the change in the states of said first means detected by said third means wherein communication service to said first means in the plug-out state is inhibited and wherein the receive function of said first means is reset when said first means is changed into the plug-in state.
Dependencies are inferred from the claim text.