RE: looking for tv-related URI use cases/application scenarios

From: Chambers, Tim (tchambers@sonypictures.com)
Date: Wed, Dec 16 1998


Message-ID: <315D19FF1819D1118A7E00805F856446E583BA@mail.sonypictures.com>
From: "Chambers, Tim" <tchambers@sonypictures.com>
To: "'www-tv@w3.org'" <www-tv@w3.org>
Date: Wed, 16 Dec 1998 09:49:11 -0800
Subject: RE: looking for tv-related URI use cases/application scenarios

Thanks, this is an example of a project that we're currently working on.

To answer these questions below: 

Building with todays tv systems in mind, we are not relying on the
ability to send data on all the lines of the VBI to send URI triggers
*and* web data, which would be the ideal. So we are currently NOT
sending anything but a URI trigger with the TV signal.

This is because the VBI is often stripped out as the signal moves from
the television network (or cable provider) to the local distributor.
There is no clarity over who has the "rights" to the VBI. As I work for
a company that is the copyright holder to many great TV brands, we like
to think that the same way we provide the "traditional content" of the
show, we should be providing the "enhanced content." 

Anyway, a solution of sorts to the VBI issue is that line21 has been
deemed "must carry" by the FCC, with the idea of sending closed
captioning there. Thus we send the URI trigger down line21 along with
the captioning, which would send the set top box user to a "enhanced tv
jump page" that is an normal HTML page on our servers. For all of this,
we are planning to use the modem-line backchannel that the set top box
would support.

The ideal would be that a section of the VBI, or later, of the MPEG
stream becomes fully standardized for sending additional data, and that
there are guarantees that this area could not be removed. If that were
the case, we would send everything through the television signal.

Tim Chambers
Director of Technology and Production
Columbia Tristar Interactive
tchambers@sonypictures.com


> -----Original Message-----
> From: Gomer Thomas [mailto:gomer@lgerca.com]
> Sent: Wednesday, December 16, 1998 9:33 AM
> To: Chambers, Tim
> Cc: 'www-tv@w3.org'
> Subject: Re: looking for tv-related URI use cases/application 
> scenarios
> 
> 
> This looks like an excellent use case. Can you provide a little more
> detail? Where is the actual "jump page" which is to be loaded 
> up? Is it on
> an Internet web site? Or is it also encoded in line 21 of the 
> VBI? If it is
> encoded in line 21, is it in the same channel as the trigger, 
> or can it be
> in a different channel?
> 
> Chambers, Tim wrote:
> 
> > Let's start this off with basics:
> >
> > It would be a trigger encoded into the line21 of the VBI 
> (which is must
> > carry for broadcasters) of a tv show that loads up a "jump page" of
> > enhanced tv content that supplements the television program.
> >
> > Tim
> >
> > > -----Original Message-----
> > > From: Philipp Hoschka [mailto:Philipp.Hoschka@sophia.inria.fr]
> > > Sent: Tuesday, December 15, 1998 12:46 PM
> > > To: www-tv@w3.org
> > > Subject: looking for tv-related URI use cases/application 
> scenarios
> > >
> > >
> > >
> > > To better motivate the requirements, and evaluate their 
> priorities,
> > > the URI telecon this morning decided that we're lacking 
> application
> > > scenarios how tv-related URIs would be used
> > >
> > > So, if you have a particular idea of how tv URIs will be used,
> > > please send it to this mailing list
> > >
> > > We have an editor (Craig Finseth) who will summarrize these
> > > scenarios in a coherent document
> > >
> > > -Philipp Hoschka, W3C
> > >
> 
> 
> 
> --
> Gomer Thomas
> LGERCA, Inc.
> 40 Washington Road
> Princeton Junction, NJ 08550
> phone: 609-716-3513
> fax: 609-716-3503
> 
>