[opendtv] Re: NTIA Issues Alert on Microprose DTV-Converter Box

At 10:16 AM -0700 5/23/08, John Willkie wrote:
oops. Her new set is 32", and the Sony was 28". When watching 4:3 pictures, her picture is now within 1/2" of the size of the 4:3 screen on the Sony (thanks to my doing the math.) 

He can't do math either...

a 28" display with 4 x 3 aspect ratio:

Screen height = 16.85"
Screen width = 22.467

Screen Diagonal  -  square root of (16.85 x 16.85) + (22.467 x 22.467) = 28.08"


A 32" display with a 16:9 aspect ratio:

Screen height = 15.7"
Screen Width = 27.91"
16:9 Screen Diagonal - square root of (15.7 x 15.7) + (27.91 x 27.91) = 32.02" 

Height of 4:3 picture = 15.7"
Width of 4:3 picture = 20.93"

4:3 screen diagonal - square root of (15.7 x 15.7) + (20.93 x 20.93) = 26.16"


4:3 picture dimensions for these two displays:

4:3 diagonals -  28.08" - 26.16" = 1.92" smaller

4:3 picture heights 16.85" - 15.7" = 1.15" smaller
Any way you look at it, the new 4:3 picture is smaller by significantly more than .5" 

Regards
Craig




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