Network device and network connecting method for supporting power saving mechanism through auto-negotiation of HDMI

A network device for supporting a power saving mechanism through an auto-negotiation (NWAY) of High Definition Multimedia Interface (HDMI), the network device comprising:

• a transmitting circuit, arranged for generating a link pulse signal to a second network device, wherein the network device and the second network device perform the auto-negotiation of a network connection by using the link pulse signal through HDMI in order to support the power saving mechanism;
• and
• a receiving circuit, coupled to the transmitting circuit, wherein after the receiving circuit receives a second link pulse signal transmitted from the second network device through HDMI, the network device is controlled to be operated under the power saving mechanism.