Brazil. At SET EXPO 2016, Enensys Technologies, a designer and manufacturer of digital television broadcasting technologies, will demonstrate new capabilities in its ISDB-T portfolio, including BTS compression/decompression, BTS over IP adaptation, ISDB-T/Tb broadcasting, as well as the insertion of customized regional ads.
Enensys has also powered its ASI and IP switches, ASIIPGuard and IPGuard V2, to support continuous and near-continuous automatic switching between redundant ISDB-T signals.
OneBeam is a core element of ENENSYS network efficiency solutions, encompassing coding/multiplexing and transmission. The system consists of the TbGateway product in the headend and the TbEdge product, which generates the BTS signal, in the transmission premises. OneBeam handles key issues related to the specific nature of the broadcast transport stream (BTS) in ISDB-T/Tb, which is required to transmit ISDB-T/Tb signals.
The BTS is made up of 204-byte MPEG-2 transport stream packets – which will require adaptation for transmission over the distribution network – but also requires a stream bandwidth of 32 Mbit/s, regardless of the number of channels or services included, making it expensive to distribute satellite content to DTT headends.
OneBeam ISDB-T/Tb allows you to use a standard transport stream (MPEG-2) within the distribution network, eliminating the need for a proprietary computer to deliver and receive the BTS stream. This also means that services can be easily controlled over the distribution network thanks to the standard MPEG signal.
TbEdge can be used as a stand-alone system to generate the BTS for a specific region. However, adding the system to the network offers the operator the added benefit of being able to control all of the TbEdge from a centralized location. In this case, TbGateway serves as a central point for the network.
Now Enensys has developed BTS compression/decompression capabilities within the OneBeam system to better support its customers in Brazil. Brazilian operators are currently using a solution to compress the BTS before it is sent via satellite and decompress it at the transmission sites. The new development will allow them to do so within the OneBeam or using BTS's decompression feature within the TbEdge, which is compatible with third-party BTS compressors.
At this year's SET EXPO, ENENSYS will also present its DTTCaster product that allows an ISDB-T/Tb signal to be retransmitted off-air via ASI and IP. This is designed to provide highly cost-effective retransmissions of DTT networks in regional/local transmission locations, where IP (microwave, fiber, etc.) or satellite connectivity are not possible or have a very high cost. DTTCaster allows the reception of content from the network using a simple antenna and then re-generates that content on another frequency.
This provides low-cost, high-quality retransmission of a network. DTTCaster units are housed in an Enensys HDc chassis with a maximum of six DTTCaster units in 1U, allowing the reception of 24 RF signals.
Last but not least, Enensys will also demonstrate its ads-ad insertion product. AdsEdge addresses the problem of cost-effective insertion of regional content into DTT and cable networks. It supports the "splicing" of file-based content, such as advertisements, local news and regional weather forecasts, in the final stage of signal distribution (the local transmission in the case of DTT, and local cable headsends for redistribution in other cases). Its single-frequency network is fully compatible with DTT, and combines Ads Server and Splicer into a single unit, reducing cost and complexity. AdsEdge is based on the standard SCTE signal system, allowing integration with existing systems.
Laurent Roul, Product Line Manager at Enensys said, "Since the introduction of OneBeam ISDB-T in the LatAm market last year, we have been working very hard to continue to develop and evolve our solutions to deliver real benefits on the ground to our customers in the
