![]() For example, the device cannot be designed to copy it must "frustrate attempts to defeat the content protection requirements" it must not transmit high definition protected video to non-HDCP receivers and DVD-Audio works can be played only at CD-audio quality by non-HDCP digital audio outputs (analog audio outputs have no quality limits). ![]() In order to make a device that plays HDCP-enabled content, the manufacturer must obtain a license for the patent from Intel subsidiary Digital Content Protection LLC, pay an annual fee, and submit to various conditions. ![]() If so, the transmitter encrypts the data to prevent eavesdropping as it flows to the receiver. Before sending data, a transmitting device checks that the receiver is authorized to receive it. The system is meant to stop HDCP-encrypted content from being played on unauthorized devices or devices which have been modified to copy HDCP content. Types of connections include DisplayPort (DP), Digital Visual Interface (DVI), and High-Definition Multimedia Interface (HDMI), as well as less popular or now deprecated protocols like Gigabit Video Interface (GVIF) and Unified Display Interface (UDI). High-bandwidth Digital Content Protection ( HDCP) is a form of digital copy protection developed by Intel Corporation to prevent copying of digital audio and video content as it travels across connections.
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