10. Technologies
HDCP v2.2
HDCP v2.2 is the latest evolution of copy protection. It is designed to create a secure connection between a
source and a display. The 2.x version of HDCP is not a continuation of HDCPv1, and is rather a completely
different link protection. One of the main differences is the number of the allowed devices within a closed
switcher device. HDCP content protection is activated only if an active video stream is transmitted from the
source to the display. The encryption is not activated without a video signal.
source and the display if the source device allows it. According to the standard, if the image content is
protected with HDCP, the highest supported content protection level has to be applied. However, if the highest
problems; this case is determined by the source.
HDCP v2.2 Source and HDCP v1.4 Sink
and Depends on input on the output port.
HDCP v1.4 Source and HDCP v2.2 Sink
outgoing signal has to be encrypted with the highest supported encryption level towards the sink, as the
See below table that summarizes the possible cases:
Incoming Signal
HDCP v1.4 Compatible Sink
on the Output
HDCP v2.2. Compatible Sink
on the Output
HDCP v1.4 HDCP v1.4 HDCP v2.2
HDCP v2.2 (convertable)* HDCP v1.4 HDCP v2.2
HDCP v2.2 (not convertable)* Red screen HDCP v2.2
* Stream type 0: the video stream allows the conversion of the signal to apply a lower level of encryption.
** Stream type 1: the video stream does not allow the conversion of the signal.
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