Archive notice: This article was originally published on June 3, 2005. Links and embedded videos are preserved as part of the historical record.
The T-Systems Media&Broadcast trade fair stand and the Scientific Atlanta trade fair stand were connected during the fair via a fibre-optic ring and, alongside other data, also exchanged HDTV audio and video data over it at a bandwidth of 1.5 Gbit/s. The base technology for this is a Resilient Packet Ring according to the IEEE 802.17 standard, which was adopted in September 2004. This standard is suitable both for optimising a corporate network for the regional and national networks of broadcasters and for transporting digital signals at the upper network level of broadband cable networks. The transparently transmitted HDTV signals were displayed on native-resolution TAMUZ monitors.
The transport of HDTV signals will play an important role during the upcoming Confederation Cup in June this year and during the 2006 Football World Cup. T-Systems Media&Broadcast is demonstrating uncompressed HDTV transmission in the 1080i50 format at 1.5 Gbit/s in this showcase. Such a network, which connects the stadiums and broadcast centres with-one-another, is meanwhile installed as a backbone in Germany and is waiting to be used.
During ANGA Cable, Scientific Atlanta presented the HDTV Micronodes specially developed for this purpose for the first time. Transmitters and receivers have HDSDI inputs or outputs and convert the video signal together with any audio and ancillary data it may contain into a data stream for the fibre-optic route.
The signals were visualised on the transmitter side with an HCM 123W HD and on the receiver side with an HCM147W HD LCD monitor. Both TAMUZ devices offer native resolution for 1920×1080 video signals and have HDSDI inputs for 4:2:2 YUV SingleLink or 4:4:4 RGB DualLink. Signal processing follows the pixel-mapping principle, so that incoming signals are displayed 1:1. In the case of 720p or even SD-format 576/480i image material, a smaller image corresponding to the number of pixels is written out.
The 47″ display size recommends itself as a large HD image in presentations, control rooms or outside-broadcast vans. The monitor’s high contrast range and brightness also allow operation in brightly lit rooms or in direct daylight. In addition to the 47″W image size, TAMUZ also offers the sizes 42″W, 37″W and 32″W in this device family, with almost identical technical and visual parameters.
If required, special mechanical solutions with these HDTV displays can also be manufactured on request. Of course also with shatterproof, low-reflection protective glass.
Actually an old acquaintance is the HCM123W HD, a 23″W HDTV monitor that serves as an HD control monitor in numerous installations at home and abroad and has been shipping for quite some time. The 23″ image size proves advantageous for use close to the user. It allows the action to be grasped at a glance and is nevertheless large enough to distinguish details with the eye.
The HD monitor family is completed by a 19″ rack-mountable 17.4″W (HCM117W HD) with “only” native 720p resolution (1280×720) and a likewise 19″ rack-mountable 15.3″W with true 1920×1080 resolution. The HCM 115W HD is particularly suitable as a camera control monitor for near-field use.
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