Reference ID 40-55

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User guide

N

NAS:

 The term describes a hard disk which is independently linked 

to the network (i.e. without a PC).

Network ID: 

NID refers to the so-called programme ID number, also 

known as network ID – a number between 0 and 8191. This specifica-

tion is necessary in specific cable networks of some countries. Then 

only DVB signals of this station network are searched for.

NICAM: 

Audio standard. Is used in Denmark, England, France, Swe-

den, and Spain.

NTSC: 

American colour standard, stands for National Television 

Standards Committee.

P

Page Catching: 

For teletext, refers to marking and calling a page 

number.

PAL: 

European colour standard, stands for phase alternation line.

PCM:

 Pulse Code Modulation for digital sound.

Picture in Picture: 

See

 PIP

.

PIP: 

Picture in Picture; a function which displays two pictures on the 

screen.

Pixel: 

Also called picture element or pel. Denotes both the smallest 

unit of a digital graphic grid and its display on a screen with grid control.

Pixel error: 

A pixel error is a defective pixel, usually on an LCD. Pixel 

errors may be caused by production errors. They are expressed for 

example by a constantly lit pixel or a constantly black pixel. Single 

defective pixels however are excluded from a guarantee.

PNG:

 Abbreviation for Portable Network Graphics, a freely available 

grid graphics format for loss-free compression.

Port:

 It allows assignment of data packages to various services which 

are running on one device under the same network address.

Powerline

: Powerline designates a type of wired network connection 

in which data is transferred via the domestic electricity network using 

optionally available adaptors.

Progressive JPEG: Progressive JPEG

s are built up gradually. The 

quality of the picture increases progressively during the loading 

process.

ProScan/Progressive Scan: 

Progressive Scan (abbr. PS) or full 

picture method is a technique in the picture build-up of monitors, TV 

sets, beamers, and other display devices in which the output device is 

not sent line interlaced half pictures – unlike in the interlace technique 

– but real full pictures.

PSK:

 Clients that wish to connect to a wireless network secured with 

PSK must know this key.

R

RGB:

 Colour signals Red, Green and Blue.

Router:

 Device for connecting several networks, e.g., home network 

and Internet.

S

Satellite tuner: 

Receiver for satellite programmes.

SDTV:

 Standard Definition TeleVision.

SECAM: 

French colour standard, stands for Séquentiel à mémoire.

Set-top box: 

Set-top box (STB for short) refers to a device in enter-

tainment electronics which is connected to another device, usually a 

TV set, and offers the user additional functional options.

Signal input group: 

Depending on the applied signal, the signal 

sources are divided into different groups. 

Signal strength: 

Strength of the received antenna signal.

Signal quality: 

Quality of the incoming antenna signal.

Smart Card: 

The Smart Card is an electronic chip card issued by the 

respective programme provider or by the certification free Pay TV 

operators. It contains the code which is decoded by the 

CA module

.

Static contrast ratio: 

Describes the difference between the brightest 

and darkest picture display.

Stereo

: Dual channel sound.

Switch

: Device for connecting several computers to a network.

Switching voltage: 

Video devices supply this voltage to switch the 

TV set to playback.

Symbol rate: 

Specifies the transmission speed for data transmission.

T

Terrestrial: 

In data transmission a wireless transmission that does 

not use satellites as intermediate station is referred to as terrestrial.

TFT: 

Thin Film Transistor. One widely distributed application is control 

of liquid crystal flat screens, for which a signal transistor is used for 

each pixel. This design of display is also referred to as active matrix, 

however it is frequently also referred to as TFT display.

Tuner: 

Another term for receiver.

U

USB: 

Universal Serial Bus. Serial bus system for connecting external 

devices (USB card reader, USB stick).

UPnP AV

 Is used to control network devices from all manufacturers. 

Has become a widespread standard for home networking.

V

VGA: 

PC interface for connecting a monitor.

VPS: 

The Video Programming System (VPS) is a signal which some 

(but not all) analogue TV stations transmit in the blanking interval. 

The signal is used by video and DVD recorders when recording pro-

grammes to react to delays in start time, programme changes and 

excesses of the planned programme time.

W

WEP:

 Abbreviation for Wired Equivalent Privacy. Former standard 

process in the WiFi encryption, now outdated.

Wired network: 

see LAN.

Wireless network: 

see WLAN.

WLAN:

 Abbreviation for Wireless Local Area Network. Also abbrevi-

ated as wireless network.

WMA:

 Abbreviation for Windows Media Audio, Microsoft own audio 

data format. As with MP3 files, the content is compressed here as well.

WMV:

 Abbreviation for Windows Media Video, proprietary Microsoft 

video data format.

WPA:

 Abbreviation for Wi-Fi Protected Access. Replaced WEP as 

standard encryption for wireless networks.

n

Glossary