Patent ID: 8694696
Filing Date: 2014-04-08
Classification: G09G,H04L,H04N

Abstract:
1. A detection method, for detecting connection statuses of a plurality of High-Definition Multimedia Interface (HDMI) ports in an HDMI-compatible multimedia device, comprising: reading a buffer of a switch controller of the plurality of HDMI ports, to receive a plurality of electric information of the plurality of HDMI ports; and determining connection conditions of the plurality of HDMI ports according to the plurality of electric information, wherein each of the connection conditions of the plurality of HDMI ports indicates whether an external HDMI device is attached to a corresponding HDMI port of the plurality of HDMI ports; and transmitting detection results of the connection conditions of the plurality of HDMI ports to an operating module; wherein the operating module further derives the connection conditions of the plurality of HDMI ports by sending poll packets through a Consumer Electronics Control (CEC) channel, and comprises a processor, a power management device, a periphery state detection circuit, a storage device, an output device, for realizing functions of the HDMI-compatible multimedia device.