Get the best technology news and reviewsDon't miss out on these crazy super deals on AliExpress, with discounts of more than 70%.Only for two days!:HDMI or High-Definition Multimedia Interface is an encrypted video standard without compression (TMDS format) for the physical transmission of digital audio and video between two devices such as a computer and a monitor.The first thing to mention is that the HDMI protocol has different transmission channels:To read later...The first version of the standard was released on December 9, 2002 and was based on DVI technology.HDMI 1.0 was an interface that was intended to unite digital audio and video signals in a single cable.HDMI 1.1 was released on May 20, 2004, and added support for DVD-Audio.HDMI 1.2 was released on August 8, 2005, adding features and capabilities that make HDMI more attractive for use in both the electronics and PC industries.Specifically, HDMI 1.2 included support for one-bit audio formats, such as Super Audio CD's Direct Stream Digital (DSD), changes to better support current and future PCs with HDMI outputs.HDMI 1.2a added CEC technology and a series of tests for the validation of HDMI devices.For a device to pass the CTS 1.2a test at an ATC, all connectors on that device must appear on the list of approved connectors.To add a connector to this list, the vendor must submit complete and passing test results to ATC or HDMI Licensing, LLC.HDMI 1.3 was published on June 22, 2006 and brought many new features:HDMI 1.4 was released on June 5, 2009 and was one of the most important versions:HDMI 2.0 was released on September 4, 2013 and increases the maximum channel throughput of TMDS from 3.4 Gbps to 6 Gbps, allowing for a total maximum speed of 18 Gbps.Thanks to that, this cable is capable of providing a resolution of 4k at 60 fps with a color depth of 24 bit / px.HDMI 2.0 also includes the options of Rec. 2020 color space, Dual View, 4:2:0 chroma subsampling, 25 fps 3D formats, up to 32 channels of audio, up to 1536 kHz audio (for example, 7.1 channels 192 kHz), up to 4 audio streams, 21:9 aspect ratio, HE-AAC and DRA audio standards, dynamic auto lip sync, enhanced 3D capability, and additional CEC features.HDMI 2.0a was released on April 8, 2015, and added support for High Dynamic Range (HDR) video via metadata.HDMI 2.0b was released in March 2016 and included Hybrid Log-Gamma (HLG).HDMI 2.1 was published on November 28, 2017 and is currently the latest version of the protocol.The HDMI protocol was created by 7 private companies and its use is not free, like DVI or DisplayPort.Manufacturers of HDMI devices must pay fixed annual fees and a payment for each HDMI device sold:The annual fee is due at the time the Adoption Agreement is executed, and is due on the anniversary of this date each year thereafter.In addition, manufacturers must also pay royalties for each device sold (it does not depend on the number of ports, chips or connectors):The HDMI Royalty is only payable on licensed products that will be sold independently (ie not incorporated into another licensed product that is subject to an HDMI Royalty).For example, if a cable is sold to a manufacturer and then included in a television subject to a royalty, then the cable manufacturer would not pay a royalty, and the television manufacturer would pay the royalty on the final product.If the cable is sold directly to consumers, then the cable would be subject to its own royalty.Get the best technology news and reviews