Patent ID: 8271714
Filing Date: 2012-09-18
Classification: G06F,Y02D

Abstract:
1. An apparatus, comprising: a power signal contact having an associated impedance; at least one data signal contact; a transceiver configured to supply power and data to a peripheral device through the power signal contact and the at least one data signal contact; a sensor configured to automatically sense a discrete change in impedance associated with the power signal contact and configured to provide to the transceiver a signal indicative of the discrete change in the impedance associated with the power signal contact, wherein the transceiver is configured to provide to a host device the signal indicative of the discrete change in the impedance associated with the power signal contact, the signal, when the power signal contact is not in use to provide power, being interpreted as a disconnection of the peripheral device from the apparatus, the apparatus being configured for serial data communication.