Documentation

ANGACOM
(Cologne-Germany) 7 - 9 June

Televes TForce technology has caused great admiration and quite a stir in ANGACOM 2016.

TForce represents and exponential leap towards electronic component miniaturization, allowing Televes to develop a new generation of products with unmatched technical specifications.

Essential Install Live!
(Esher-UK) 6 - 7 July

This trade show is oriented toward sophisticated audiovisual solutions with a special focus on deployments for the Hospitality sector, where Televes had a chance to showcase the FibreData and CoaxData range of solutions, as well as new products like Avant 9 and new Encoders. The event is generating incremental attention amongst professional installers of data and television networks each year  

Content protection discussion is in the rise again due to the issues inherent to the rights and licences of new commercialization and consumption models, both in managed and non-managed networks, specially in the latter. The transition of audiovisual contents to HD and the gradual introduction of UHD contents are accelerating the trend towards protection from the content providers, who own the content rights and whose core business is their commercialization.

Digital distribution involves significant risks relative to non-authorized redistribution of works which rights are owned by content providers.The technologies used for the protection of these works should be transparent to the user, who should not detect any changes in image or sound quality.

A conditional access system includes a combination of scrambling and encryption that prevents non-authorized users from viewing the contents. Encryption is the process that makes sound, image and data unintelligible.

The encryption process protects the passwords that have to be transmitted together with the encrypted signal, so that only authorized users are able to decode the signals. If there is a network operator between the content provider and the final user, the operator will have to select a conditional access system and provide the required resources (headend level encryption, STB, CAM, Smart Cards) in order to limit the distribution of the contents.

In case of content distribution without the participation of a strictly speaking network operator, like the distribution in a Hospitality network (e.g. hotel or similar environment), the distribution is usually carried out by means of transmodulators or encoders. In both cases, the signals travelling across the network are open, using de-encryption elements such as STB or CAM, but in this case the use of a conditional access system is not useful. Mainly due to the huge management complexity involved, especially in the absence of an actual network operator.

This is why the selected method in this case is forensic watermarking; it inserts a mark in the distributed signal that is invisible to the user. This mark identifies the signal source and could potentially identify the receiver, so that the trace of the whole distribution is registered.

There are other options, such as incorporating a DRM into the distributed signal. It works in the same way as the conditional access, encrypting both signal and passwords. The de-encryption by the user is performed by a CAM inside the TV set. In this way, the signal is not transmitted in clear on the distribution network and only users with a CAM can access the contents. There is still one variation to this system, consisting in incorporating the de-encryption in the TV receiver, which simplifies the contents protection management.

In Televes we follow very closely the evolution of the content protection services in parallel with the evolution of digital technologies, providing solutions to both network operators and content distribution infrastructure managers

The expert says

Thanks to these measures and graphics, you will be able to know how many modules you can fit in each cabinet or frame. Televes uses standard dimensions in order to make installation easier for our technicians. These dimensions are taken from a Eurocard (standard European format for PCB). Vertically, we find the U (Unit Rack) equivalent to 1.75 inches (44.45 mm), horizontally we have the HP (Horizontal Pitch), equivalent to 0.2 inches (5.08 mm).

Below you will find the dimensions of the main modules in our headend series

The combination of a headend controller and the T.Suite software, allows for remote configuration of a T.0X headend. Usually, this task can only be carried out by the installer authorized staff, who are the only ones having access to the configuration of the headend modules.

However, the monitoring and configuration of the control module itself can be performed from any web browser without the need for T.Suite.

The CDC module generates a web page associated to port 15706, so that by introducing the socket (IPCDC:15706) into the browser, you can access both its parameters and the headend status.

By means of remote access tools such as VPN or NAT, that page would be accessible from virtually anywhere, making headend supervision an easy and quick task, that could be carried out by means of any device with access to the Internet, regardless of its operating system

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