US Patent 7359995 Peripheral device connection current compensation circuit

A peripheral device connection current compensation circuit is proposed, which is designed for use in conjunction with a peripheral control interface on a computer platform, for the purpose of responding to an event of an external peripheral device being connected to the peripheral control interface by providing a current compensating function that can help to prevent an electrical current induced by a pull-up resistor in the peripheral device from flowing into the internal circuitry of the peripheral device. This feature can help maintain the slew rate of the connecting circuitry for the peripheral device at the rated value.