Patent ID: 8674679
Filing Date: 2014-03-18
Classification: G06F,Y02D

Abstract:
1. A method comprising: detecting, at a receiver sense circuit of a source device including a direct current (DC) voltage source, that a sink device is coupled to the source device via a connector based at least in part on a signal received from the sink device, wherein the signal is received prior to the source device communicating with the sink device and while the DC voltage source is turned off; transmitting a detection signal from the receiver sense circuit to a controller of the source device; turning on the DC voltage source by the controller in response to the detection signal; receiving a hot plug detect (HPD) signal at the controller; disabling the receiver sense circuit by the controller in response to the HPD signal; transmitting output signals to the sink device; and enabling the receiver sense circuit by the controller and turning off the DC voltage source in response to detecting that the source device is no longer coupled to the sink device.