Wireless communication systems
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United States of America Patent
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N/A
Issued Date -
Jun 22, 2006
app pub date -
Jul 3, 2003
filing date -
Jul 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a communication system for use in connection with a stationary communication line, the communication system comprising two input/output units, each input/output unit comprising a first connector for connection of a communication line, a second connector for connection of an input/output device, a rechargeable battery and a third connector for connecting a charging voltage to the rechargeable battery, whereby the units comprise transmitters and receivers for communicating wireless a communication signal in one direction from a first input/output unit to a second input/output unit and in another direction from the second input/output unit a communication signal for input to the communication line.
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