EchoStar Viaccess DVR-7000 User Manual page 77

MPEG
Near Video-On-Demand
Network
NTSC
PAL
PID
Parental lock
Pay-Per-Channel
Pay-Per-View
Pay TV
PIN-code
Polarization
Polarizer
Polarmount
Receiver
RS232 connection
Satellite
SCART cable
Service provider
Digital Satellite Receiver
The Moving Picture Experts group is founded by the ISO to
provide a basis for the coding and compression of moving
pictures. MPEG has now become a standard method for the
digital transmission of video and sound using less bandwidth
than the analog transmission method.
Multi channel system broadcasting many copies of a film with
staggered start times so a complete film is always available to
a viewer with a short waiting period.
With respect to the receiver, a network (also known as a
bouquet) is a set of programs that is offered by a single
service provider.
USA video standard with image format 4:3, 625 lines, 60 Hz
and 4 MHz bandwidth with a total of 6 MHz video channel
width.
European video standard with image format 4:3, 625 lines,
50 Hz and 4 MHz bandwidth with a total of 8 MHz video
channel width.
MPEG-2 transmits the audio and video information in so-
called packages. At the beginning of each package is an
identifier (PID) present which tells the receiver what to do with
the received information. Satellite receivers use normally four
types of PID, these are VPID (video PID), APID (audio PID),
Program Clock Reference (PCR PID) and data PID (EPG
information).
A feature which is introduced to give you the possibility to
'lock' or 'hide' several functions of the receiver to prevent
unauthorized persons (children) to view broadcasts that are
not suitable for them. The use of the parental lock requires a
PIN-code. With this PIN-code you can change or unlock the
locked or hided recordings and channels.
With this feature, the viewer has to pay a certain price per
month (or other period) to receive all programs of a certain
channel.
Conditional access service where the user is able to buy one
particular program from a particular service provider.
With Pay TV, the consumer has to pay for certain programs or
services.
The PIN-code or Personal Identification Number is necessary
to make use of the parental lock feature. The PIN code has
four digits which can be set personally.
Broadcasts are done in a particular frequency band. To make
maximum use of a frequency band and bring you the
maximum number of programs, the broadcasts are polarized
in different ways to fit as much as possible programs into one
frequency band.
A remote controlled device that determines the polarity of the
signal which is fed to the LNB.
A motorized dish antenna mount which enables a dish to point
at every 'visible' satellite on the Clarke Belt.
Unit which takes signals from a dish and converts them so
they can appear on radio and TV.
A RS232 connection allows you to connect equipment to the
receiver which supports the RS232 protocol.
A broadcast station, for satellite radio and TV, positioned on
the Clarke Belt.
A SCART cable is also known as 'Peritel' cable and is
commonly used in Europe to connect the audio and video
equipment. A fully furnished SCART cable has 21 wires which
is at both sides finished with a 21-pin connector.
A service provider is a company or organization that collects
and offers you a number of programs and services. Some are
free of charge and others you have to pay for.
Glossary
Section 8
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