High Standards for HDMI

December 14, 2017 at 8:00 AM

 

Becoming a certified HDMI product is no simple task. HDMI Licensing LLC. has high standards for products that claim compliance and meeting their requirements is no easy feat.

 

To be HDMI compliant, a representative sample of each licensed HDMI product or component must pass rigorous testing prior to mass production or distribution. Here’s an inside look at everything that goes in to meeting the high standards for HDMI.

 

First, the manufacturer must become an HDMI adopter. They then self-test according to the most current HDMI Compliance Test Specification. This year, HDMI 2.1 is being released and is the most current specification. The test specification has a list of testing procedures and minimum requirements for how to test each product. This testing is limited and only evaluates the product’s HDMI compliance, it is not designed to test the overall product performance.

 

Next, the manufacturer must submit the first product of each product type (i.e. cable, sink, repeater or source) to an authorized testing center (ATC) for further testing. To submit a product for testing, the manufacturer must fill out an application, submit the product, provide all operating instructions or manuals, complete a capabilities declaration form and submit any ancillary material or equipment. The product is then evaluated for a pass or fail result. If a passing result is given, it is not required to test any other products of that type. If the product fails the compliance testing, the manufacturer is given a list of areas that did not pass, so they can make changes as needed.

 

 

With this year’s release of HDMI 2.1, comes a list of new specifications that must be met by HDMI certified products. These new requirements are available to all HDMI 2.0 adopters. HDMI 2.1 features include:

 

  • ·       Higher video resolutions and faster refresh rates
  • ·       Dynamic HDR for improved depth, brightness, contrast and wider color gamuts  
  • ·       48G cables for enabling up to 48Gbps speeds for uncompressed HDMI 2.1 feature support including 8K video with HDR
  • ·       eARC to support the most advanced audio formats and enable advanced audio signal control capabilities
  • ·       Game Mode VRR with variable refresh rate
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As with all HDMI specifications, compliance testing must be performed for products to meet the HDMI 2.1 standards. All HDMI 2.0 adopters will have access to the HDMI 2.1 Compliance Testing Specification. The HDMI 2.1 specification supersedes HDMI 2.0b. All HDMI 1.4b products will continue to be tested to CTS 1.4b standards. HDMI 1.4b adopters cannot also be licensed to the HDMI 2.1 specification.

 

As an HDMI Adopter, L-com offers a wide selection of HDMI certified cables and HDMI Splitters/Extenders.

 

For more information about the HDMI standards, visit www.hdmi.org.

 

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