Device disconnect detection
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United States of America Patent
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Mar 25, 2014
Issued Date -
N/A
app pub date -
Jun 30, 2012
filing date -
Jun 30, 2012
priority date (Note) -
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Abstract
Systems and methods for operating a universal serial bus are described herein. The method includes sending packet data from a USB2 device to a USB2 host on a pair of signal lines, and after sending the packet data, sending an End-Of-Packet (EOP) signal from the USB2 device to the USB2 host. The method also includes, entering the USB2 device into idle state after sending the EOP signal. The method also includes sending a digital ping from the USB2 device to the USB2 host to indicate device presence during idle state.
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