[QuadList] OT: is S-VHS "obsolete" in copyright law's eyes?

[Scott Thomas]

I remember some of the talk around the launch of S-VHS: "It's luminance bandwidth is as good as 1" Type-C"!
Of course the color-under system wouldn't allow for any multi-generation work.

Was there any licensed Faroudja technology in S-VHS. Perhaps that could be a reason for the lack of S-VHS to DVD recording?

Sorry, I don't have any way to get this thread back to Quad.


On Feb 27, 2012, at 12:57 PM, James Snyder wrote:

> SVHS (or "Super VHS") used different carrier frequencies for the luma and chroma part of the signal.  If a deck was good enough, SVHS could record the luma signal (at 400 lines of resolution based on the bandwidth it could record on the tape) better than the best NTSC signal (which tops out at about 330 lines of resolution based on actual bandwidth).  The chroma was still color under and still suffered the vagaries of VHS processing, but it had better resolution as well.  The Y/C (or 'SVHS') cables were designed to keep the luma and chroma separate so they wouldn't inject as many NTSC artifacts in to the SVHS video.  NTSC artifacts are, of course, mainly crosstalk between the luma and chroma subcarriers.
> 
> 
> James Snyder
> Senior Systems Administrator
> Library of Congress -
>  National Audio Visual Conservation Center (NAVCC)
> Motion Picture, Broadcasting & Recorded Sound Division (MBRS)
> Packard Campus for Audio Visual Conservation
> http://www.loc.gov/avconservation/packard/