Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 26, 2008
0Patent Application Number
105088800
Date Filed
March 19, 2003
0Patent Primary Examiner
Patent abstract
A switching arrangement is connected between a PC and a communications line. The switching arrangement is controlled by a power supply voltage in the PC that can be accessed externally. When the PC switched off, this supply voltage disappears and the device in the communications line goes into a blocked state. This makes it possible to completely disconnect the PC from the communications line without conducting any operations in the PC, even if the communications card or the modem wants to maintain a constant connection with the outside world.
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