Bedienungsanleitung Grundig 55GUB8677 (Seite 114 von 120) (Englisch)

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using NAT/PAT/Masquerading. As the address

range used can only be viewed within the pri-

vate network, the same range can also be used

in other private networks. The unique nature of

an IP address required by the Internet protocol

is ensured by this restricted visibility.

Proxy server

A proxy or proxy server is a service program for

computer networks that administers data trans-

fer. It makes data transfer faster, and can also

increase security by implementing access control

mechanisms. The transfer is conducted between

computers or programs in computer networks.

On the server side, the proxy acts as a client; on

the client side, it acts as a server.

Router

A router is a network component that links sev-

eral computer networks. The router analyses (on

the basis of layer 3 information) the network

packages of a protocol it receives and forwards

it to the intended destination network. Conven-

tional routers work on layer 3 of the application

layer. A router has an interface for every net-

work connected to it. When data is received, the

router determines the correct path to the destina-

tion and thereby the suitable interface via which

the data can be transferred. For this it uses a

locally available routing table that specifies via

which router connection a particular network

can be reached.

RoviGuide™

Electronic channel guide with various informa-

tion on the television programmes.

SCR (Single Channel Router)

Unrestricted single cable system.

If your antenna system is equipped with a single

cable multi-switch, the televisions which are con-

nected to this antenna system can receive televi-

sion channels independently from one another.

Security (WEP/WPA)

WEP (wired equivalent privacy) is the standard

encryption algorithm for WLAN. It controls both

access to the network as well as ensuring the

confidentiality and integrity of data. This proce-

dure is considered insecure nowadays. For this

reason, more recent WLAN installations should

use the more secure WPA encryption.

Symbolrate

This is the number of transmitted symbols in the

digital transmission technology per time unit

Timeshift

You can pause the programme you are watch-

ing. This is a useful function, for example if the

telephone rings while you are watching a film

and you do not want to miss anything.

The programme is saved in the time¬shift memo-

ry of the external data medium.

A maximum of 60 minutes of the current

programme can be recorded in the time shift

memory.

Transponder

A transponder receives data on a satellite and

then transmits it again. For example, an earth

station can transmit data signals for television

channels to a geostationary satellite, which

sends this back to earth. Any suitable satellite

antenna with visual contact to the satellite can

receive the signal.

UHD TV

Ultra High Definition Television (UHDTV or Ultra

HDTV) and Ultra High Definition Video (UHDV)

are a digital video format which includes two

picture resolutions (4K and 8K). Resolution:

3840 × 2160 (UHD-1) or 7680 × 4320 pixels

(UHD-2).

GLOSSARY

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