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| subject: | Re: Television |
Hello Tom! 13 May 04 15:39, you wrote to Joe Nicholson: TW> -> TW> NTSC - National Television Standards Committee. TW> -> TW> Consists of 525 horizontal lines of display and 60 vertical TW> lines. -> -> There are absolutely NO vertical lines in any of those TW> systems - -> none whatsoever. Who the hell wrote that bunch of TW> malarkey? TW> I think we have a Translation problem that list was NOT from an TW> English speaking Country. We can agree that the Vertical Rate is TW> Synched to the 60 Cycle Line and that the Frame Rate itself is 60. TW> -> A "field" of 262.5 lines (one half a picture) are scanned every TW> -> 30 seconds, resulting in an interlaced "frame" of 525 lines (the TW> -> total picture) every 60 seconds. TW> -> TW> PAL - Phase Alternating Line. Developed by German engineer TW> -> TW> Walter Bruch and the German electronic corporation Telefunken. TW> -> TW> Walter Bruch patented his invention 1963 and the first TW> -> TW> commercial application of the PAL system was in August 1967. TW> -> TW> Also a 625/50-line display and variant of NTSC. TW> -> England uses 825 or 925 lines in its PAL, up from 525 lines used TW> -> in the B&W standard, and increased the bandwidth of color TW> channels. -> Thus B&W and color were not compatible as was the TW> situation in the -> U.S. (NTSC retained the same number of lines and TW> same bandwidth so -> po' folks who couldn't afford a color TV could TW> still watch a color -> program in B&W.) Oddly enough the message you are quoting didn't make it here. Neither the message from you to Joe Nicholson that he quotes did. sup? Best Regards, Viktor (aka BlackDew) --- np: The Corrs - Give Me A Reason* Origin: BlackDew (bdew{at}mail.ru) (Icq#5101918) (2:400/567) SEEN-BY: 633/267 270 @PATH: 400/567 106/1 2000 633/267 |
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