Glossary - Uniden HD9000UPVR Owner's Manual

Glossary

* Aspect Ratio:
* AFD
* Composite Video:
* DVB:
* EPG:
* Frequency:
* Letterbox:
* OSD:
* PAL:
- 40 -
It is the ratio of the width of the screen to the height. The two relevant
digital TV formats are 16:9 (wide screen) or 4:3 (the traditional screen
ratio). 16:9 is ergonomically more suitable for human's eye.
Abbreviation for "Active Format Descriptor". A format code which can be
used to send information about the "protected" area inside a widescreen
picture which may be cut off for viewing on non-widescreen TV displays.
Used for Aspect Ratio selections.
There are three elements of the video system: First - the "active video"
which means the picture to be displayed on the screen and its
associated colors. Second - the "sync" decides where to place each
pixel on the screen. Third - the "blanking" tells the display when to turn
off the electron beam so no retrace across the screen. These three
elements combined together is called "composite video" when
connecting to a display through connectors.
Abbreviation for "Digital Video Broadcasting". An international
organization created in October 1993, whose primary objective is to
achieve a common framework for all technical platforms of digital
broadcasting systems including DVB-C (cable), DVB-S (satellite),
DVB-T (terrestrial), DVB-MC (MMDS), DVB- CS (SMATV).
Abbreviation for "Electronic Programme Guide". It is software that
enables viewers to navigate through the large number of channels
offered by digital TV broadcaster and select the desired services.
The property of a signal which is measured in cycles per
second(=Hertz).
The picture with aspect ratio 16:9 in a 4:3 TV screen with blank
lines on top and bottom. It is the means to watch a wide screen TV
programme on a 4:3 TV screen.
Abbreviation of "On Screen Display", used in digital set top box. OSD is
comprised of a main menu and many submenus with lots of options of
functions inside.
Stands for "Phase Alternating Line", the European video standard which
has the image format of 4 by 3, 625 horizontal lines, 50 Hz and a total 8
MHz of video channel width.
© 2010 Uniden Australia Pty Ltd/Uniden New Zealand Ltd.