Complex Input
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From: glen herrmannsfeldt on 16 Nov 2009 13:05 Vladimir Vassilevsky <nospam(a)nowhere.com> wrote: (snip) > When we moved to US, I tried to find a multisystem VCR so it would be > compatible with old tapes recorded in PAL. Surprisingly nobody ever > heard about a difference in the TV standards, but they immediately > suggested 120/220V transformers. I believe they are very hard to find here. Easy to find in the Philippines, though. (The Philippines in 60Hz NTSC, but many workers work in other countries and send or bring home tapes from other standards.) Finding TVs that will accept NTSC at a 50Hz frame rate isn't so hard, but ones that will do the conversion is much harder. Many years ago I started to learn about NTSC including how they carefully considered the spatial frequency sensitivity of the eye to different color pairs. Only very recently did anyone bother to build a TV set to decode the full resolution of the NTSC color subcarrier, just in time to see it disappear! (For a very short time there were ED, Extended Definition, TV sets that could do it.) > BTW, Rune, if you don't mind, would you please write few words about > yourself and send to me. -- glen
From: Jerry Avins on 16 Nov 2009 16:30 glen herrmannsfeldt wrote: > Vladimir Vassilevsky <nospam(a)nowhere.com> wrote: > (snip) > >> When we moved to US, I tried to find a multisystem VCR so it would be >> compatible with old tapes recorded in PAL. Surprisingly nobody ever >> heard about a difference in the TV standards, but they immediately >> suggested 120/220V transformers. > > I believe they are very hard to find here. Easy to find in > the Philippines, though. (The Philippines in 60Hz NTSC, but many > workers work in other countries and send or bring home tapes > from other standards.) Finding TVs that will accept NTSC at > a 50Hz frame rate isn't so hard, but ones that will do the conversion > is much harder. > > Many years ago I started to learn about NTSC including how they > carefully considered the spatial frequency sensitivity of the > eye to different color pairs. Only very recently did anyone bother > to build a TV set to decode the full resolution of the NTSC > color subcarrier, just in time to see it disappear! (For a very short > time there were ED, Extended Definition, TV sets that could do it.) > >> BTW, Rune, if you don't mind, would you please write few words about >> yourself and send to me. We have a relatively Indian population -- Asian India, that is -- here, and some specialty markets that cater to their tastes. (It; nice to live in Rural Cosmopolitia.) Some of those markets did PAL/NTSC conversions for tapes. Maybe they still do, but it's not advertised in the window any more. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
From: Jerry Avins on 16 Nov 2009 16:50 Jerry Avins wrote: ... > We have a relatively Indian population -- Asian India, that is -- here, .... relatively _large_ Indian population ... Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
From: dbd on 16 Nov 2009 17:30 On Nov 16, 1:50 pm, Jerry Avins <j...(a)ieee.org> wrote: > Jerry Avins wrote: > > ... > > > We have a relatively Indian population -- Asian India, that is -- here, > > ... relatively _large_ Indian population ... > > Jerry > -- > Engineering is the art of making what you want from things you can get. > ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Are they big or are there a lot of them? Dale B. Dalrymple
From: Jerry Avins on 16 Nov 2009 17:43
dbd wrote: > On Nov 16, 1:50 pm, Jerry Avins <j...(a)ieee.org> wrote: >> Jerry Avins wrote: >> >> ... >> >>> We have a relatively Indian population -- Asian India, that is -- here, >> ... relatively _large_ Indian population ... >> >> Jerry >> -- >> Engineering is the art of making what you want from things you can get. >> ����������������������������������������������������������������������� > > Are they big or are there a lot of them? > > Dale B. Dalrymple It's a large population of Indians, not a population of large Indians. Had I meant the latter, I should have written "a relatively-large-Indian population." :-) Jerry -- Engineering is the art of making what you want from things you can get. ����������������������������������������������������������������������� |