3.2About HDMI
High-Definition Multimedia Interface (HDMI) is an uncompressed all-digital1audio/video interface, widely supported in the entertainment and home cinema industry. It delivers the highest high-definition image and sound quality. Note that Kramer Electronics Limited is an HDMI Adopter and an HDCP Licensee.
In particular, HDMI:
•Provides a simple2 interface between any audio/video source, such as a set-top box, DVD player, or A/V receiver and video monitor, such as a digital flat LCD / plasma television (DTV), over a single lengthy3 cable
•Supports standard, enhanced, high-definition video, and multi- channel digital audio4 on a single cable
•Transmits all ATSC HDTV standards and supports 8-channel digital audio, with bandwidth to spare to accommodate future enhancements and requirements
•Benefits consumers by providing superior, uncompressed digital video quality via a single cable5, and user-friendly connector
•Is backward-compatible with DVI (Digital Visual Interface)
•Supports CEC, two-way communication between the video source (such as a DVD player) and the digital television, enabling new functionality such as automatic configuration and one-button play
HDMI has the capacity to support existing high-definition video formats (720p, 1080i, and 1080p, 2K and 4K), standard definition formats such as NTSC or PAL, as well as 480p and 576.
3.3About HDCP
The High-Bandwidth Digital Content Protection (HDCP) standard6 protects digital video and audio signals transmitted over DVI or HDMI connections between two HDCP-enabled devices to eliminate the reproduction of
1 Ensuring an all-digital rendering of video without the losses associated with analog interfaces and their unnecessary digital- to-analog conversions
2 With video and multi-channel audio combined into a single cable, the cost, complexity, and confusion of multiple cables currently used in A/V systems is reduced
3 HDMI technology has been designed to use standard copper cable construction at up to 15m
4 HDMI supports multiple audio formats, from standard stereo to multi-channel surround-sound. HDMI has the capacity to support Dolby 5.1 audio and high-resolution audio formats
5 HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a simple, cost-effective manner
6 Developed by Intel
