Universal Serial Bus

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A serial 4-wire bus (GND, Power and a differential Data Signal transferred over 2 wires). A quite clever designed Protocol for communication between the PC Host and peripheral devices like e.g. DVB Receivers.

Specified by the USB Consortium, spec is publicly available on http:://www.usb.org/.

Different USB DVB Devices are available on the Market by different DVB Card Vendors, only High-Speed USB2.0 devices are able to transfer the full MPEG2 transport stream or high-datarate Transponders, Full-Speed are limited to a overall datarate (incl. Protocol overhead) of about 12MBit.


Links:

http:://www.usb.org/

http://en.wikipedia.org/wiki/USB

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