[QuadList] What Would a Newly Designed Quad VTR Do and Have? Reply by ...

Mon Jun 4 00:33:38 CDT 2012

Every year computers have more horsepower.... who knows the state of the  
art just 10 years from now!?
and in 20 years even more dramatic. I remember 1965 learning punch cards  
and plug boards.. by 1975  we had microprocessors  by 1985  we  had some nice 
 super computers  20 years...  only 20  years...

So... be patient.. if  we do not have  the affordable computing  power now 
perhaps we have  only 5 to 10 years to wait!

Ed#  _www.smecc.org_ (http://www.smecc.org) 

In a message dated 6/3/2012 9:55:59 P.M. US Mountain Standard Time,  
scottgfx at mac.com writes:

You know a lot more about the theory than I, but that's kind of why I  
figured that a scanner would be needed rather than a stationary head. Even if  
you could use stationary heads, you would need many, all with different head  
gaps for the various frequencies.

A single-head scanner might be able to create an image of all of the  
frequencies and their location on the tape. You can run the linear speed of  the 
tape at anything, but the scanner (head wheel) would run at the optimal  
speed. 

You would need some powerful software that would look at the physical  
layout of the tracks and reconstruct, in a sense a virtual demod of the  signal. 
The reconstruction of that image into video sounds like a lot of work.  I 
see it as a way someone a hundred years from now might go about trying to  
figure out what's on some tape and there are no longer a VTR to play it back  
on.

A year or so ago I had mentioned to a person famous in the ASIC/FPGA  
programming world that a Quad machine signal and transport system would be a  
good project for her. She never wrote back, even though she was soliciting  
ideas for projects.

Oh well,

Scott Thomas

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