[opendtv] Re: PSIP, cable guide info, and Zap2It

  • From: "johnwillkie" <johnwillkie@xxxxxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Mon, 9 Jul 2007 11:24:40 -0700

As long as it only supports the broadcast model, I don't think you would
have much to worry about.  It's like airing a TV commercial that you didn't
get paid to air.

There might be novel legal issues here.

John Willkie

-----Mensaje original-----
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de Tom Barry
Enviado el: Monday, July 09, 2007 10:15 AM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: PSIP, cable guide info, and Zap2It

My question on the PSIP copyright issue was really exploring the 
possibility of a P2P PSIP sharing application.  With a large number of 
folks participating to get a relatively small amount of data it would 
seem easy to keep a large shared database updated, if no legal hassles 
existed.

- Tom


John Shutt wrote:
> The problem with using PSIP is that you either need a dual tuner 
> card/stb or must put up with losing your picture every so often as the 
> ATSC tuner scans all the available OTA channels for EPG information.  
> Tuners could do the channel scanning/guide harvesting while the STB is 
> "off", but if the box is never turned "off" it would never have the 
> opportunity to refresh the "master" EPG.  Further, only 12 hours of EPG 
> data are mandated by A/65, so a 2 AM channel scan may not cover the 
> flowing day's prime time line up.
> 
> Of course, that does not address those cases where antenna orientation 
> is critical to reception, and any sort of market wide EPG scan would 
> fail for certain channels.  Internet based guides are all inclusive, can 
> be read without interrupting the viewing or recording of an ATSC 
> channel, and provides uniform content from station to station in a market.
> 
> At one point very early in the ATSC process, it was suggested that PBS 
> stations (presumably being 'neutral' in the ratings wars) would carry 
> program information for all OTA stations in the market, easing the task 
> of OTA viewers keeping a current and complete program guide.  
> Unfortunately that was never implemented, and I'm not sure that is even 
> possible today given the way A/65C is worded.
> 
> John
> 
> ----- Original Message ----- From: "Tom Barry" <trbarry@xxxxxxxxxxx>
> 
> 
>> I think my MyHD card does use PSIP info, not sure about the F3Q.  I'm 
>> never sure where the info comes from because I'm using the CW EPG 
>> program and I think that blends guide info with whatever the MyHD 
>> program gets from whatever sources.  And most of my timer recording 
>> are on QAM cable so I don't think PSIP applies there.
>>
>> On my Fusion card I can schedule with TitanTv but mostly use it for 
>> fixed repeating timer recordings with no guide info.
>>
>> Is PSIP not copyrighted?  That is, if I take it off the air can I 
>> legally share it with others?
>>
>> - Tom
> 
> 
> 
> 
> 
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-- 
Tom Barry                  trbarry@xxxxxxxxxxx  

 
 
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