DVI
Digital Video Interface
. Provides high bandwidth digital connection between a video source and a TV.
Audio is carried separately.
A High Definition Multimedia Interface
is like a High Definition scart cable, a high bandwidth digital connection
for both video and audio. ensures the best video signal is sent from the source (HD signal) to the display
(LCD, Plasma, DLP). It does this by sending uncompressed video and multi channel audio to the TV through one
single cable.
HDCP
High bandwidth Digital Content Protection (HDCP)
is a copyright protection system that is included in HD TVs
and receivers. It prevents unauthorised duplication and distribution of copyrighted content.
HD READY
HD ready
is a labelling scheme being introduced by the European TV manufacturers’ organisation EICTA to help you
choose an HD TV. The HD ready logo will appear on an increasing number of TVs in the shops. Sky’s HD service is
designed to work with TV sets that carry the HD ready label. So look for the logo to make sure you’re ready for HD.
HD TV
HD TV (High Definition television)
provides a higher quality display with a vertical resolution display from 720p to
1080i. These rates translate into a frame rate of up to 50 frames per second, twice that of conventional TV. HD TV
pixel numbers range from one to two million, compared to SD TV’s range of 300,000 to one million. As for audio, HD
TV receives, reproduces, and outputs Dolby
®
Digital 5.1 audio.
INTERLACED SCANNING
With
interlaced scanning
, a display shows all the odd lines at one scan of the screen and then all the even lines in a
second scan of the screen.
PIXEL
Pixel
is the abbreviation for ‘picture element’. Pixels are the smallest bits of data in a video image. The more pixels
there are in an image, the greater the resolution.
PROGRESSIVE SCANNING
Progressive scanning
is based on the principle that all the horizontal scan lines are ‘painted’ on the screen in one
pass. 720 or 1080 horizontal lines are scanned progressively or in succession in a vertical frame. This is repeated
50 times a second. Some displays, for example LCD and plasmas, scan progressively, whilst CRTs in TV sets usually
scan using interlaced lines.
720p
720p
means the vertical resolution of the TV picture is 720 lines. ‘p’ refers to progressive scanning.
1080i
1080i
means the vertical resolution of the picture is 1080 lines. ‘i’ refers to interlaced scanning.
Wi-Fi
is a registered mark of the Wi-Fi Alliance. Wi-Fi networks provide secure, reliable and fast wireless
connectivity. You can use Wi-Fi to connect your Sky±HD box to your broadband router.
Wi-Fi Protected Setup (WPS)
is an easy way to set up new wireless networks automatically, add new devices
and enable security.
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