Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 45 views

    High Definition Multimedia Interface

    Uploaded by

    Pablo A Rios
    HDMI is a digital connection standard that allows transmission of high definition video and audio from devices like Blu-ray players and video game consoles to compatible monitors like HDTVs. It transmits digital audio and video signals using TMDS encoding. Different versions of HDMI have been introduced with increasing bandwidth capabilities. HDMI is backward compatible with DVI but does not support audio or copy protection features through DVI. HDMI specifications define electrical and mechanical requirements for cables and connectors.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    High Definition Multimedia Interface

    Uploaded by

    Pablo A Rios
    45 views18 pages
    HDMI is a digital connection standard that allows transmission of high definition video and audio from devices like Blu-ray players and video game consoles to compatible monitors like HDTVs. It transmits digital audio and video signals using TMDS encoding. Different versions of HDMI have been introduced with increasing bandwidth capabilities. HDMI is backward compatible with DVI but does not support audio or copy protection features through DVI. HDMI specifications define electrical and mechanical requirements for cables and connectors.

    Original Description:

    Original Title

    hdmi-1220900668641579-9

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    HDMI is a digital connection standard that allows transmission of high definition video and audio from devices like Blu-ray players and video game consoles to compatible monitors like HDTVs. It transmits digital audio and video signals using TMDS encoding. Different versions of HDMI have been introduced with increasing bandwidth capabilities. HDMI is backward compatible with DVI but does not support audio or copy protection features through DVI. HDMI specifications define electrical and mechanical requirements for cables and connectors.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    45 views18 pages

    High Definition Multimedia Interface

    Uploaded by

    Pablo A Rios
    HDMI is a digital connection standard that allows transmission of high definition video and audio from devices like Blu-ray players and video game consoles to compatible monitors like HDTVs. It transmits digital audio and video signals using TMDS encoding. Different versions of HDMI have been introduced with increasing bandwidth capabilities. HDMI is backward compatible with DVI but does not support audio or copy protection features through DVI. HDMI specifications define electrical and mechanical requirements for cables and connectors.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 18

    HDMI

    HIGH DEFINITION MULTIMEDIA INTERFACE


    INTRODUCTION

    It is a connector between high definition


    devices such as Blu-ray disc, a video game
    console to a compatible digital audio or video
    monitor such as digital television.
    GENERAL
     HDMI encodes the video data into TMDS for
    transmission digitally over HDMI.
     TMDS is a channel which carries video, and/or
    audio through one of three modes;
    1. Video Data Period:
    The pixel of an active video are transmitted.
    2. Data Instant Period:
    Audio are transmitted with a series of
    packets.
    3. Control Period:
    Occurs between video and data island
    periods.

    Different versions of HDMI have been


    introduced, from HDMI 1.0 to 1.3. Same cable is
    being used but there is difference in throughput.
    HDMI VS DVI
    DVI used for carrying digital video on
    modern computer monitors and graphic cards.
    HDMI is backward compatible with DVI and vice
    versa; but
     Audio and remote control features of

    HDMI will not be available.


     Without support of HDCP on display, the
    signal source, prevent end user from viewing
    or recording certain restricted contents.
    SPECIFICATIONS
    The are electrical and mechanical
    requirements of the cable and connectors.
     Connectors:

    HDMI specifications include three


    connectors intended for different markets.
    a. Standard type A HDMI connectors has 19
    pins with bandwidth to support SDTV,
    EDTV & HDTV modes.
    b. A high resolution type B HDMI 1.0
    connector has 29 pin.
    which allows to carry an expanded video
    channel for use with very high resolution
    displays.
    a. A type C mini connector, intended for
    portable devices but has the same 19 pins.
     Cable:
    HDMI cables are available for type A to type
    C. It is used to carry video, audio and devices
    controlling signals.
     TMDS Channel:
    Carries videos, audios through three modes;
     Video Data Period
     Data Island Period
     Control Period
     CEC Channel:
    It is optional to implement, but wiring is
    necessary, the channel
     Uses a industry standard protocol.
     Used for remote control functions.
     Is a one-wire bidirectional serial bus.
     Defined in HDMI 1.0, updated in HDMI 1.2a
    and again in 1.3a.
    VERSIONS
     HDMI 1.0: December 2002
    Single cable digital audio/video connection,
    maximum of 4.9 Gbits/sec.
     HDMI 1.1: May 2004

    Added support for DVD audio.


     HDMI 1.2: August 2005

    Added support for one bit Audio, used on


    super audio CDs, up to 8 channels.
    The availability of HDMI type A connector.
     HDMI 1.2a: December 2005

    Fully specifies consumer electronics control


    (CEC) features.
     HDMI 1.3: June 2006

    Increased bandwidth to 10.2 Gbits/sec.


    Availability of a new mini-connector for
    devices (type C).
     HDMI 1.3a: November 2006
    Cable modification for type C.
    Source termination is recommended.
     HDMI 1.3b:

    Testing specification (happening) released on


    26 march 2007.
    CABLE LENGTH
     No specific cable length.
     HDMI 1.3 introduces 2 kinds of cables to reduce
    the confusion about which cable supports which
    video format.
     Category 1:
     Standard or HDTV

     28, AWG about 5 meter long

     Category 2:
     High speed/greater than HDTV

     Higher quality, 24 AWG about 12-15 meter.


    HDMI & HD OPTICAL MEDIA PLAYER

     HD DVD, Blu-ray disc uses Dolby Digital


    plus, Dolby True HD and DTS-HD master
    Audio having very high bitrates.
     HD DVD, Blu-ray permit “interactive
    audio”.
    CRITICISM
     Connector are not robust as previous display
    connectors. Tripping over a cable plugged into an
    HDMI port can easily damage the port.
     Lack of security mechanism built on connectors
    and plug are more prone to physical and/ or
    electrical damage.
    THANK YOU

    You might also like