System for connecting electronic devices
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United States of America Patent
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Apr 30, 2013
Grant Date -
Nov 3, 2011
app pub date -
Jun 30, 2010
filing date -
Apr 28, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system includes a master device and a number of slave devices connected to the master device via a bus. Each slave device includes a control unit, a switch unit, and a lock unit. When a new slave device is connected to the system, the control unit of the new slave device transmits a request signal to the master device. The master device detects whether the master device is communicating with the already connected slave devices after receiving the request signal, and outputs an enable signal to the new slave device according to the detected result. The control unit of the new slave device controls the lock unit of the new slave device to turn on and turn off the switch unit of the new slave device according to the enable signal.
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