Wibro USB modem device having storage device
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United States of America Patent
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N/A
Issued Date -
Jul 2, 2009
app pub date -
Mar 20, 2008
filing date -
Jan 2, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed herein is a Wireless Broadband (WiBro) Universal Serial Bus (USB) modem device having a storage device and a WiBro communication device. A USB hub is connected to the USB interface of the WiBro communication device and the USB interface of the storage device, and configured to relay data to a user terminal through a USB connector. A switching mode power supply unit is configured to have a DC-DC switching mode, receive power from the user terminal, and apply the power by performing high-speed switching so that the WiBro communication device and the storage device are simultaneously driven. The switching mode power supply unit includes a dual output switching mode power supply unit and a single output switching mode power supply unit.
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