Translation of "Kopfstelle" in English

An IPTV Middleware system is the most important element of an IPTV headend.

The head end is connected to a subscriber-side terminal through a distribution network.

In other words, the actual switchover between program channels takes place in the encoder of the head end.

This greatly reduces the on-site head-end footprint.

The NetUP.tv application requires the NetUP IPTV Middleware as part of IPTV headend.

The central area node (CAN) is located at the campus or building head-end.

For this reason, provision has been made for the existing head point to monitor the direct voltage supplied to it.

To update the base unit's software, the EPROM has to be replaced.

If we are now setting up Eurojust to be the missing head then we are also obliged to provide shared nerve fibres, without which body and head will not function together.

At the head end, following the removal device 20, with respect to the direction of transport T, a removal point II is formed by a slide rail 15 which extends in the direction of transport T. A starting section of the slide rail 15 is arranged in a plane above the toothed belt 21 and parallel to the latter, extending over the toothed belt in a direction opposite the direction of transport T over a certain length.

In addition, the signals transmitted between the head end and the network termination apparatus can also comprise ATM format, except, however, for the distribution signals transmitted in band B1.

With reference to the constantly updated table TCU, the control means TDC of the connection unit CU that controls the TDM/TDMA system can thus determine the degree of occupancy of the individual high-frequency channels.

The distribution TV signals are transmitted in analog form in the coaxial network KN. The signals are supplied via a TV into the connection unit CU and are supplied from the latter to all connected subscribers via the coaxial network KN.

The signals are supplied, for example, by a service means designed as a video server VS connected to the connection unit CU via an ATM switching device ATMS, whereby the control of these events is undertaken by a central control means TMN.

In general, this allocation is implemented by a central control computer of the network control center TMN in combination with the local control devices SEC of the connection unit CU and the network termination apparatus NT/A.

The bit transport system TDM/TDMA between the head end CU and the individual network termination apparatus NT/A already comprises a transmission-oriented overhead.

A burst transmission is therefore provided, whereby the respective starting time of a burst in the network termination apparatus NT/A is controlled, proceeding from the connection unit CU, such that the upstream signals of the individual subscribers arrive ordered in the connection unit CU and without mutual overlap.

Channels still having free capacity are determined by a control means SEC of the connection unit CU with the assistance of the information stored in the table TCU.

It should thereby be noted that only a single subscriber may transmit at a given time in order to avoid interference between the information signals proceeding from a plurality of subscribers in the connection unit CU. This situation is further complicated by different signal running times.

Quadrature amplitude modulation with two carrier signals orthogonal relative to one another is often used for the transmission of digital television and/or radio signals from a head end to subscribers in coaxial cable networks.

Circuit arrangement according to claim 1, further comprising: dependent on transmission direction, an appertaining reception means set to a transmission channel by the first peripheral control means of the at least one connection unit or, respectively, by the second peripheral control means of the respective network termination means, said transmission channel containing the allocated information at the beginning of the transmission according to the criterion of a cyclical interrogation of all transmission channels.

Circuit arrangement according to claim 1, wherein the network structure between the at least one connection unit and the plurality of network termination means further comprises a coaxial network in a tree structure having an optical feeder line.

Circuit arrangement according to claim 6, wherein the information signals exchanged between the at least one connection unit and the plurality of network termination means are ATM information signals.

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