Patent ID: 6564275
Filing Date: 2003-05-13
Classification: G06F

Abstract:
An electronic switching device for a universal serial bus (USB) interface, comprising a trigger signal generator, a control signal generator, and a connector, wherein:the trigger signal generator has an output to be connected with an input of the control signal generator, and a switch to output a trigger signal to the control signal generator when a user enables the switch; the trigger signal generator comprises a resistor, a capacitor, and a switch, the resistor and the capacitor being serially connected between a power supply and a ground one end of the switch being connected to the ground, and the other end of the switch being connected to where the resistor and the capacitor are connected, such that when a user enables the switch, the switch will generate a pulse signal to be used as a trigger signal for outputting to the control signal generator; the control signal generator has an input to be connected with an output of the trigger signal generator, and an output to be connected with an input of the connector, for receiving the trigger signal outputted from the trigger signal generator, processing the trigger signal, and then outputting a control signal to the connector; and the connector has an input to be connected with each universal serial bus (USB) interface of at least two electronic devices, and an output to be connected with a universal serial bus (USB) interface of another electronic device, such that when the connector receives the control signal outputted from the control signal generator, the connector will connect related universal serial bus (USB) interfaces according to the control signal.