Patent ID: 6351809
Filing Date: 2002-02-26
Classification: G06F

Abstract:
A method of disguising a device's connection to a USB port of a host system, the USB port having first and second data pins that are scanned by the host system for a voltage differential therebetween, the voltage differential indicating a peripheral device's connection to the USB port, the method comprising the steps of:connecting the first and second data pins of the USB port to respective first and second data pins of the device, the first data pin of the device having a selective connection through a pull-up resistor to a supply voltage of the device, thereby allowing the host system to recognize the connection between the device and the host system via the USB port; disabling a connection from the first data pin of the, USB port to a supply voltage so as to prevent the first data pin from being pulled to the supply voltage, thereby preventing the host system from recognizing the connection; and determining within the host system, in response to the disabling step, that the device is not connected to the USB port.