Method and apparatus for extending the range of the universal serial bus protocol
AssigneeIcron Technologies Corporation
InventorJohn Alexander McLeod
Life of this patent
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Abstract
The present invention provides a method and apparatus to be used to extend the range of standard USB devices, and in particular, USB devices operating in accordance with Revision 2.0 of the USB Specification. An extended range hub is provided which comprises a Local Expander (LEX) and a Remote Expander (REX) which can be separated by up to, for example 100 meters. The LEX and REX operate in accordance with an enhanced high-speed USB Extended Range Protocol (USB-ERP) which permits USB devices to be more conveniently located and used, and is in compliance with Revision 2.0 of the USB Specification.
Claims51
An enhanced high-speed method for transmitting a data stream between a host controller and a peripheral device over an extended distance, on a signal distribution system, in accordance with the USB-Extended Range Protocol (USB-ERP) wherein said method additionally comprises modifications to allow for compliance with Revision 2.0 of the USB specification.
An apparatus for transmission of a digital signal over an extended distance, on a signal distribution system, between a host controller and a peripheral device, in accordance with an enhanced high-speed USB-Extended Range Protocol (USB-ERP) wherein said apparatus comprises an enhanced high speed USB_ERP device comprising means for modification of the transmission signal to allow for compliance with Revision 2.0 of the USB specification.
Dependencies are inferred from the claim text.