Techniques for achieving complete interoperability between different types of multimedia display interfaces

摘要

A multimedia interface cable for achieving complete interoperability between different types of multimedia display interfaces. The cable comprises a first multimedia connector including a plurality of contact pins of at least high-speed multimedia signals and control signals; a second multimedia connector including a plurality of contact pins of least high-speed multimedia signals and control signals; a plurality of un-crossing conducting wires for coupling the plurality of contact pins of the high-speed multimedia signals in the first multimedia connector to the plurality of contact pins of the high-speed multimedia signals in the second multimedia connector; and a plurality of conducting wires for coupling the plurality of contact pins of the control signals in the first multimedia connector to the plurality of contact pins of the control signals in the second multimedia connector.

主权项

1. An apparatus for enabling HDMI and DisplayPort interoperability between a source multimedia display interface of a source multimedia device and a sink multimedia display interface of a sink multimedia device, wherein the apparatus is located in and operable in the source multimedia device, comprising:
an input coupled to a multimedia connector, wherein the multimedia connector is an HDMI or DisplayPort connector; and a comparator for determining a type of the multimedia display interface of the sink multimedia device connected to the source multimedia device based on at least a voltage level of a transition minimized differential signaling (TMDS) clock signal received through the multimedia connector, wherein the determined type of the multimedia display interface is HDMI or DisplayPort, and wherein the comparator sets the source multimedia device to operate in a mode compliant with the multimedia interface of the sink device.