HDMI (High-Definition Multimedia Interface) is a digital audio/video interface used to transmit uncompressed video and audio data. It supports high definition video, standard video, and multiple channels of digital audio over a single cable. HDMI provides higher quality video and audio than DVI, and incorporates content security through HDCP (High-bandwidth Digital Content Protection). The presentation discusses the history and versions of HDMI, its advantages over alternative interfaces like DVI, and a typical HDMI setup.

1. Presentation On HDMI
By
Naveen Kumar Tiwari

2. Agenda
• Introduction about HDMI
• HDMI For HDTVs
• HDMI Versions
• HDMI Cable Types
• HDMI VS DVI
• HDCP
• Advantages of HDMI
• Disadvantages of HDMI
• HDMI Set Up
• Conclusion

3. Introduction
• HDMI (High-Definition Multimedia Interface) is an
interface standard used for audiovisual equipment
such as high-definition television and home theater
systems.
• The High-Definition Multimedia Interface is provided
for transmitting signals to television sets, projectors
and other video displays.
• HDMI is the only interface enabling connections to
both HDTVs and digital PC monitors implementing
the DVI and HDMI standards.

4. Continue…
• HDMI can deliver high quality audio or video without
the risk of quality loss due to the conversion or
compression of a video or audio signal.
• HDMI systems automatically convert a picture into its
most appropriate format, such as 16:9 or 4:3.
• HDMI uses transition minimized differential signaling
(TMDS) to move information from one place to
another.

5. Continue…

6. HDMI For HDTVs
• Before the development of high-definition
televisions, most TVs displayed pictures in what is
now known as standard definition.
• its aspect ratio is 4:3, so the picture is square .
• HDTVs, on the other hand, are digital. They use
information in the form of ones and zeros.
• HDTVs have an aspect ratio of 16:9, so the picture is
rectangular.

7. Continue…

8. HDMI Versions
• HDMI Version 1
• HDMI Version 1.1
• HDMI Version 1.3
• HDMI Version 1.4

9. HDMI cable types
• Type A
• Type B
• Type C
• Type D
• Type E

10. HDMI VS DVI
HDMI
Connector
DVI
Connector
HDMI
Connector
DVI
Connector
DVI is HDMI without the audio – Separate cable needed for audio !

11. Continue…
• There are actually three types of DVI.
• DVI-A is used for analog signals like VGA.
• DVI-D is used for digital signals.
• DVI-I is a combination of DVI-A and DVI-D.

12. Continue…
• High Definition Multimedia Interface is the only
uncompressed, all digital audio/video interface that is
supported by the industry.
• High Definition Multimedia Interface provides an
interface in between any video/audio source, like an A/V
receiver, digital television, and DVD player over one cable
total, instead of one cable for video and one cable for
audio.
• HDMI will support high definition video, standard
video, and / or enhanced video plus multiple
channels of digital audio on one single cable.

13. Continue…
• There are two important differences between DVI
and HDMI.
• The first difference is that HDMI technology
incorporates content security that is called High
Definition Content Protection, also known as HDCP.
• The other huge difference between Digital Video
Interface and High Definition Multimedia Interface is
that DVI can only support digital video, and HDMI
can support audio and video on the same cable.

14. High-bandwidth Digital Content Protection
• High-bandwidth Digital Content Protection encrypts
data over HDMI.
• HDCP helps bring high-definition digital content to
consumers by providing copy protection over
HDMI

15. Continue…
• Developed by Intel Corporation to prevent copying of
digital audio and video content as it travels across
HDMI, DVI etc.
• Supported by the majority of CE manufacturers,
government and content providers
• Emphasizes that HDMI is a smart cable

16. Continue…

17. Advantages of HDMI
• Higher Quality
• Intelligence
• Authentication and Encryption
• Signal Integrity
• Single Cable
• No Compression
• Compatibility with DVI
• Supports multiple audio and video formats
• Hot Plug Detect
• Display port compatibility:

18. Disadvantages of HDMI
• Distance Limitations
• Switching Delays
• Costly
• Multiple locations
• Multi-Channel Audio
• DVI Compatibility

19. Conclusion
• HDMI is constantly evolving to meet the needs of the
marketplace. The standard is constantly adding more
and more features that manufacturers can
implement if they desire. But HDMI does not require
manufacturers to implement everything that HDMI
can do. HDMI provides a menu of capabilities and
allows the manufacturer to choose which of those
features make sense for its product line. As you
upgrade and purchase new audio and video
components, you will notice HDMI becoming more of
a standard connection option with increasing
capabilities.

20. Typical HDMI Set Up

21. Thank YOU