Bedienungsanleitung Kathrein UFS 641si (Seite 78 von 84) (Englisch)

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SHORT TECHNICAL GLOSSARY

HDCP – High-bandwidth Digital Content

Protection

Encryption system which protects the HDMI and

DVI interfaces for secure transmission of video

and audio data.

HDMI – High Deﬁ nition Multimedia Interface

Digital interface for digital video and audio data

transmission between TV and receiver (preferred

for HDTV).

HDTV – High Deﬁ nition Television

High resolution television with a resolution up to

5 times higher or ﬁ ner than PAL or NTSC.

High band

Satellite frequency range between 11.7 GHz and

12.75 GHz.

H.264

Another designation for MPEG-4.

JPEG - Joint Photographic Experts Group

Image compression technique.

Linux

Operating system

LNB - Low Noise Block Converter

Converts the satellite downlink frequencies into

the Sat IF.

Low band

Satellite frequency range between 10.7 GHz and

11.7 GHz.

MP3

File format for compressed audio ﬁ les

MPEG-2

MPEG is the abbreviation for “Moving Picture

Experts Group”, a working group that formulates

internationally applicable standards for the

digital compression of video and audio.

MPEG-2 has become established as the

standard for compression of digital TV signals.

MPEG-2 works up to a data rate of 100 Mbit/s.

MPEG-4

A further development of MPEG-2 with even

higher data compression, intended for HDTV

transmissions.

NIT

The channel identiﬁ cation number is also

referred to as the Network ID or NIT.

NTFS

File system for storage media

OSD – On-Screen Display

Displays by the receiver on the TV screen

(e.g. main menu)

PAL

Analogue TV standard

Pay TV

Television channels available on subscription

(e.g. Sky). Encrypted transmitters which can

be decrypted only by using the appropriate

smart card. As a rule these services are

subscription-only.

PID

The PID (Packet IDentiﬁ cation) number is an

identiﬁ cation number for video signals and

audio signals in the digital data stream of

DVB-MPEG-2 signals. The receiver uses the PID

number to create a unique assignment for the

video and audio data transmission. The PCR-PID

is the identiﬁ cation number for the synchronisation

signal. The PID-PCR is normally identical to the

video PID. For programmes broadcast in

multiple languages, the audio PD can be entered

manually to assign a different language to the

TV programme. After the PID is entered, the

digital receiver automatically selects the audio

data identiﬁ ed by the PID number from the data

stream and assigns it to the video signal.

Personal Identiﬁ cation Number. For this unit

the PIN is a 4-digit numeric code which must be

entered to unlock the unit to allow access to

certain functions and channels.

Polarisation

The individual transponders on satellites

transmit on two different (polarisation) planes

(horizontal and vertical). As a result the capacity

of the transponder is increased.

QPSK - Quadrature Phase Shift Keying

Digital modulation process that is used for

satellite transmission (8PSK is also used in

connection with HDTV).

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