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HDTV Magazine Articles Archive (September, 2007)

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Technology

IPTV Part 2 - The Groups, Forums and Statistics

By Rodolfo La Maestra • Sep 25 2007, 2:46pm

In April 2006, the International Telecommunications Union (ITU) created a focus group on IPTV to coordinate and promote the development of global IPTV standards with the following agenda:

  • Define IPTV
  • Review and perform gap analysis of existing standards and ongoing works
  • Coordinate existing standardization activities
  • Harmonize the development of new standards
  • Encourage interoperability with existing systems where possible


Ericsson, Matsushita's Panasonic, Philips, Samsung Electronics, Siemens AG, Sony, AT&T, Telecom Italia, and France Telecom, to work on a single IPTV standard, created an Open IPTV Forum.

The forum is open to other companies to join, supports IP Multimedia Subsystem (IMS) for unified Internet service delivery, and Digital Living Network Alliance (DLNA). The group was planning to...

Technology

IPTV Part 1 - Read the Fine Print

By Rodolfo La Maestra • Sep 19 2007, 5:45pm

IPTV is becoming a buzzword used to generally name TV distribution using IP networks. Some IP content distributors that only offer limited services making subscribers believe this is a full service with all the features of legacy digital cable are also using this term very loosely.

There are several camps on this subject. On one side some industry experts firmly believe that the infrastructure of our current IP networks is solid enough and is ready for full-blown HDTV distribution over IP. As you will see below...

Technology

CinemaScope™ HDHT Part 4 - Budgeting for the Project

By Rodolfo La Maestra • Sep 13 2007, 2:28pm

Some people budget for the sky is the limit (or should I say they do not need to budget) when implementing solutions from professional projection systems, like Barco, Sony 4K, etc. Some professional projection systems used for local theaters are in the $100K to $250K range for just the projector.

However, most people are not looking for that level of (expensive) sophistication for regular home theaters. I believe that level of quality offers a low return on the investment considering that a $10K-20K projector could perform very well in the home environment, unless you are looking for 300"+ diagonal screens and a large seating area to compete with George Lucas and the Skywalker Ranch.

Just to put some numbers together, the video part of a CinemaScope™ project could require...

New Products & Equipment

The DIRECTV Plus® HD DVR: A Look at the First Year

By Doug Brott • Sep 11 2007, 2:47pm

Despite its troubled start, the DIRECTV Plus® HD DVR has evolved into a capable high-definition video recorder. In addition, the Plus® HD DVR has been the driving force in the creation of a strong community of enthusiasts taking an unprecedented role in the software release cycle with DIRECTV leading the way. Now it's time to look back at the DIRECTV Plus® HD DVR journey.

January, 2006: DIRECTV's first homegrown Digital Video Recorder (DVR), the R15, has been in use for several months. The HR10-250, a high-definition DVR based on the TiVo software, has a list price of $1,000. The satellite world is ready for an alternative.

Technology

Mobile DTV Reception - Advanced-Vestigial Side-Band (A-VSB) - Impact Analysis

By Rodolfo La Maestra • Sep 6 2007, 12:48pm

As I mentioned in my previous articles I am concerned with the bandwidth required for the A-VSB mobile transmission taken from the 8-VSB transmitted channel of DTV terrestrial television, an issue that I particularly consider a risky opportunity to further degrade the quality of full HDTV channels.

Many broadcasting stations are already using part of the HDTV 6 MHz channel (19.4 Mbps) to transmit several simultaneous multi-cast SD channels, and those are already degrading considerably the quality of the once alone HD channel, reducing its available bandwidth to close to half of the 19.4 Mbps, a bandwidth it requires to show acceptable quality.

Technology

Mobile DTV Reception - Advanced-Vestigial Side-Band (A-VSB) - The Implementation

By Rodolfo La Maestra • Sep 3 2007, 12:47pm

In the first two articles, I covered the details of how this mobile DTV system works, the requirements, and some potential effects on HDTV channels if not used with quality of terrestrial broadcast in mind.

In April 2007, I privately discussed with Mr. John Godfrey, VP of government and public affairs for Samsung Information Systems America, to confirm some of the technical aspects of AVSB.