[opendtv] Re: TSC Looks to Future With Mobile DTV
- From: Tom Barry <trbarry@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 04 Nov 2009 12:14:22 -0500
How do we know there is no monthly fee? I don't see any technical
reason there couldn't be one for certain channels in the future. Just
legacy receivers would not be able to receive premium channels, only
open ones.
- Tom
Manfredi, Albert E wrote:
> The new twist described in this piece is work on enabling ALL of the 6 MHz
> channel to be used for ATSC M/H. Well, that would sure kill off any thought
> of OTA HDTV.
>
> This looks like a tactic for broadcasters to hold onto their OTA spectrum,
> showing that they too can reinvent themselves to fit into the trendy new
> mobile hand-held market, even 100 percent. Seems like one heck of a challenge
> to MediaFLO, potentially.
>
> (Oh, except there's no monthly fee. People won't like that. Must add the
> monthly fee to be taken seriously.)
>
> Bert
>
> --------------------------------
> http://www.tvtechnology.com/article/89660
>
> ATSC Looks to Future With Mobile DTV
> by Jerry Whitaker, 11.02.2009.
>
> The landmark ATSC Mobile DTV Standard has been completed. Following a final
> vote of approval from the ATSC membership on October 15, the long process to
> develop a comprehensive standard to address the need for a mobile digital
> television service has reached completion. As broadcasters announce plans to
> roll-out this new technology, the ATSC has launched new work designed to
> extend and support the ATSC Mobile DTV Standard.
>
> ABOUT ATSC MOBILE DTV
>
> ATSC Mobile DTV is built around a highly robust transmission system based on
> vestigial sideband (VSB) modulation coupled with a flexible and extensible
> IP-based transport system, efficient MPEG AVC (ISO/IEC 14496-10 or ITU H.264)
> video, and HE AAC v2 audio (ISO/IEC 14496-3) coding. The new services are
> carried in digital broadcast channels along with current DTV services without
> any adverse impact on legacy receiving equipment.
>
> In addition to live television, the ATSC Mobile DTV system provides a
> flexible Application Framework to enable new receiver capabilities. Receivers
> that make use of an optional Internet connection will enable new interactive
> television services, ranging from simple audience voting to the integration
> of Internet-based applications and transactions with television content.
>
> A SCALABLE FULL-CHANNEL OPTION
>
> Looking forward to new applications and services beyond traditional
> television broadcasting, work has begun on an extension of the ATSC Mobile
> DTV system that enables use of the full-channel bandwidth for mobile
> services. This new project was approved by the ATSC Board of Directors in
> June and assigned to TSG/S4.
>
> The work is intended to add increased capacity in a scalable manner up to
> complete channel bandwidth usage. The Scalable Full-Channel Mobile Mode
> (SFCMM) technology will provide additional operational options for use of
> A/153. The existing A/153 (Core Mobile Mode, or CMM) requires a minimum of
> 4.7 Mbps to be transmitted as conventional 8-VSB. SFCMM, on the other hand,
> could scale capacity up to the total available from the channel.
>
> Requirements and compatibility with existing devices and systems include the
> following:
>
> The emitted SFCMM signal must be compatible with the A/153 (CMM) emitted
> signal so as to allow receivers designed for SFCMM reception to be able to
> also receive A/153 (CMM) signals.
>
> A CMM-compatible portion of the emitted signal from a SFCMM system must be
> capable of being received and decoded on a CMM receiver.
>
> Like the current A/153 (CMM), emission of the SFCMM must not have any adverse
> impact on existing and future receivers deployed to receive ATSC A/53 DTV.
>
> Work on the scalable full-channel system is underway in a new subgroup of
> TSG/S4, known as S4-5. This group is led by Jordan Cookman of Microtune. The
> first step in this process was to develop a Request for Proposals (RFP),
> which was issued on October 7.
>
> TRANSMISSION INFRASTRUCTURE
>
> In an effort to address certain infrastructure issues relating to ATSC Mobile
> DTV implementation, the ATSC has formed a Specialist Group on Transmission
> Infrastructure (TSG/S5), led by Art Allison of NAB. TSG/S5 is working to
> develop a broadcast station infrastructure communications standard, and
> related informational documents (as needed). The work will be coordinated
> with SMPTE whenever the possibility of overlapping responsibilities warrants
> such liaison.
>
> Current efforts are focused on developing appropriate documentation to
> facilitate transport of standardized ATSC Mobile DTV data and metadata across
> various studio-to-transmitter links (STL). Because of the pending roll-out of
> ATSC Mobile DTV services, this program is on a fast-track to completion.
>
> MOBILE DTV RECOMMENDED PRACTICE
>
> ATSC recognized early on in the development of the ATSC Mobile DTV Standard
> that implementation guidelines would be beneficial to broadcasters and
> equipment suppliers. TSG/S4 and its subgroups are working to develop a
> Recommended Practice on ATSC Mobile DTV. This document is being written by
> the same experts that developed the standard itself.
>
> Although no firm timeline for completion of the RP has been set, work is
> expected to stretch into next year as implementation experience is gained
> from stations placing ATSC Mobile DTV systems on the air.
>
> Work within ATSC is open to all organizations with a direct and material
> interest. If you would like to be involved in this ongoing work, please
> contact the author. The ATSC Mobile DTV Standard document set will be
> available shortly from the Standards Page on the ATSC Web site: www.atsc.org.
>
> Jerry Whitaker is vice president of standards development for the ATSC. You
> can reach him via TV Technology.
>
>
> ----------------------------------------------------------------------
> You can UNSUBSCRIBE from the OpenDTV list in two ways:
>
> - Using the UNSUBSCRIBE command in your user configuration settings at
> FreeLists.org
>
> - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
> unsubscribe in the subject line.
>
>
>
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:
- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
Other related posts:
