The HDTV (High Definition Television) era is coming. In order to adapt to the high bandwidth of HDTV, HDMI has appeared, which can provide high bandwidth and lossless transmission of digital video and audio signals. HDCP technology (high-bandwidth digital content protection technology) is a technology to ensure that high-definition signals transmitted by HDMI or DVI will not be illegally recorded. Its technical specifications are led by Intel. When users make illegal copies, the technology will interfere and reduce the quality of the copied images to protect the content.

 

The role and requirements of HDCP in the signal transmission process

 

HDCP process

 

    Maintaining higher-resolution signal integrity in long-distance cable transmissions is a significant challenge. For HDMI sources such as Blu-ray Disc and cable or satellite TV, HDCP must be taken into account. For all HDCP signal sources, the entire signal path from the signal source to the display device must be HDCP compliant.

 

    Signal switching and distribution requirements in the system are determined by environmental factors and intended use, but keep in mind that if the system contains a Blu-ray player or any HDCP signal source, the switcher must also comply with the HDCP standard.

 

    Of course, devices that do not comply with the HDCP standard will also cause the images from the HDCP signal source to not be displayed. But for signal distribution equipment, especially in a matrix switcher, effective HDCP management will help fast and easy system configuration and signal source switching.