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1 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 High Definition Interested in Sky HDTV? Make sure you are...

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Presentation on theme: "1 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 High Definition Interested in Sky HDTV? Make sure you are..."— Presentation transcript:

1 1 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 High Definition Interested in Sky HDTV? Make sure you are... The High Definition Logo

2 2 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 Protection between Decoder and Display The issue:- No Raw Video

3 3 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 Sky state that the vast majority of HDTV programming will only be viewable if carried via HDMI or DVI connections that support the HDCP digital rights protection system. In other words, if your projector or flat panel screen only has component video inputs or an HDMI/DVI jack NOT compatible with the HDCP system, it will not show the majority of Sky’s HD services. It is important to distinguish between connectors... –DVI:Digital Video Interconnect –HDMI:High-Definition Multimedia Interface... and HDCP Encryption on those Connections... Sky High Definition TV

4 4 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 Requirements to be HD-Ready Display, display engine The minimum native resolution of the display (e.g. LCD, PDP) or display engine (e.g. DLP) is 720 physical lines in wide aspect ratio. Video Interfaces The display device accepts HD input via: Analogue YPbPr*, and DVI or HDMI HD capable inputs accept the following HD video formats: 50 and 60Hz progressive (“720p”) 50 and 60Hz interlaced (“1080i”) The DVI or HDMI input supports content protection (HDCP) * “HD ready” display devices support analogue YPbPr (component) as a HD input format to allow full compatibility with today's HD video sources in the market. Support of the YPbPr signal should be through common industry standard connectors directly on the “HD ready” display device or through an adaptor easily accessible to the consumer.

5 5 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 DVI DVI was developed by the Digital Display Working Group (DDWG). Common on LCD Flat Panels Two main forms - –DVI-D Digital-only - 24pins –DVI-I Integrated - 29 pins Digital and Analogue Pin:- C1 - Analogue Red Video Out C2 - Analogue Green Video Out C3 - Analogue Blue Video Out C4 - Analogue Horizontal Sync C5 - Analogue Common Ground

6 6 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 DVI Connectors Connectors

7 7 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 HDMI - High Definition Multimedia Interface HDMI is fully compatible with DVI (Digital Visual Interface). TVs with HDMI will display video received from existing DVI-equipped products, and DVI-equipped TVs will display video from HDMI sources such as set-top boxes, DVD players, A/V receivers and other home theater and entertainment components. HDMI-enabled devices are backwards compatible with the broad array of DVI-based PCs so you can display PC gaming or entertainment content on your HDTV. More info at The HDMI Logo:

8 8 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 HDMI Connectors Don’t confuse with Firewire, USB etc!!! HDMI Socket

9 9 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 HDCP - Copyright Protection HDCP - High-bandwidth Digital Content Protection HDCP is a specification developed by Intel Corporation to protect digital entertainment content across the DVI/HDMI interface. The HDCP specification provides a robust, cost-effective and transparent method for transmitting and receiving digital entertainment content to DVI/HDMI-compliant digital displays. Implementation of HDCP requires a license from Intel Spec and Licence Info at:

10 10 Chelmsford Amateur Radio SocietyMurray Niman G6JYBHigh Definition TV Talk v1.1, Feb-2005 Composite Video Component Video is also called YPbPr, or YCbCr and transmits the picture information in a luminance and phase-opposite chrominance pair over three coax cables [Red, Green, and Blue]. RGB [Red, Green, Blue] is some times also called Component Video, but combine the color, black and white signal YPbPr is 'sometimes' used when discussing the three-wire analogue video component interface EIA-770 [EIA a SMPTE-240M and others]. The luminance (Y) is represented separately from the colour components (Pb and Pr). In some cases The Y output is provided as a Green jack, the Pb is provided as a Blue jack, and the Pr is provided as a Red jack. The 'Y' signal carries the black and white information, The 'Pb' and 'Pr' signals carry the colour difference signals. YCbCr is used when discussing a digital component interface ITU-601 or ITU-656 digital interfaces (formerly CCIR-601, CCIR-656). Y is Luminance, Cb is Blue Chromanance, and Cr is Red Chromanance. CCIR-601 defines an 8-bit DIGITAL 2's compliment coding for component video RGB is the component format in which the primary colours (red, green, and blue) are transmitted as three independent components. The colour, black and white signals are combined within these three signals. Only using RGB inputs requires separate horizontal and vertical sync inputs. RGB presents a better [TV] signal than the other forms of Component video, S-Video, Composite Video, or RS-170. RGB sends each signal on a separate cable and does not mix the colour signals.


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