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Video Basics

Beau SchwabeBeau Schwabe Posts: 6,566
edited 2006-03-29 14:09 in Propeller 1
Just going through some of my "Nuts and Volts" and found an article that some might be interested in that
could pertain to the Propeller for a custom video application.

January 2005
www.nutsvolts.com/toc_Pages/jan05toc.htm

Nuts and Volts: Anatomy of a video signal ; VIDEO BASICS by Keith Jack

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Beau Schwabe

IC Layout Engineer
Parallax, Inc.

Comments

  • Kaos KiddKaos Kidd Posts: 614
    edited 2006-03-21 16:11
    Can't read it unless you order the back issue... I'm going to see if it's elsewhere...

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    Just tossing my two bits worth into the bit bucket


    KK
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  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2006-03-21 16:28
    Kaos Kidd,

    You can also check a local library... I would scan it in and post it myself, but I don't want to get into unauthorized reprinted
    material issues. You can also do a Google search for.... "Keith Jack" Video ...Which I believe pulls up one of the books
    already referenced about video in the "Propeller chip" forum.

    http://www.video-demystified.com/

    The article in Nuts and Volts is a very condensed version. Personally I wouldn't waste $$ on a back order magazine, but if
    you know what specific issue you are looking for and know where to find it (i.e. the library) then it might be worth a look.

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    Beau Schwabe

    IC Layout Engineer
    Parallax, Inc.
  • Kaos KiddKaos Kidd Posts: 614
    edited 2006-03-21 17:03
    THanks... I'm researching...

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    Just tossing my two bits worth into the bit bucket


    KK
    ·
  • Paul BakerPaul Baker Posts: 6,351
    edited 2006-03-21 18:17
    I ordered that backissue from them (it was Jan 05, but the Feb issue was already out), I was dissapointed with the level of detail provided. I found online refrences that did a much better job at providing the nitty gritty.

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  • kjennejohnkjennejohn Posts: 171
    edited 2006-03-22 06:00
    That's distressing. I ordered N&V's January/February/March of 2005 back issues on the 18th. They had already sent me April as a come-on. I haven't seen or heard anything about any of these being sold out yet from them. When did you place your order and discover this, Paul?

    Later!
    kenjj
  • Paul BakerPaul Baker Posts: 6,351
    edited 2006-03-22 06:04
    I ordered the Jan 05 issue in Jan 05 because I couldn't get it from the newsstands because the Feb issue was already out on the stands (not out of availibility, sorry for the confusion).

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  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2006-03-22 06:36
    You might try to get the annual CDs. They are a better value.

    Video DeMystified certainly looks like an excellent reference.· Seems to be a must get for anyone that really wants to use video as a hacker.· Seems to include all the formats.

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan

    Post Edited (Kramer) : 3/22/2006 9:33:42 AM GMT
  • inakiinaki Posts: 262
    edited 2006-03-22 12:58
    IMHO the book Video Demystified is too much. This book tries to concentrate too much information in a single book. It looks more like a 'reference' book than a guide for learning about video signals.

    I have read better explanations (easier to understand) in many electronic magazines and probably there would be good explanations on the internet too.





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  • cgraceycgracey Posts: 14,155
    edited 2006-03-24 18:44
    In designing the Propeller's video circuit and TV object, almost all know-how came from this site:

    www.ntsc-tv.com

    The information there is very thorough and easy to understand. The only thing I had to look elsewhere for was how to modulate the broadcast signal. This site should be all you need.

    BTW, to generate the broadcast, you take the baseband and AM it so that the bottom of the sync pulse is maximum amplitude and the white level is minimum amplitude.

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    Chip Gracey
    Parallax, Inc.
  • BeanBean Posts: 8,129
    edited 2006-03-29 12:52
    Here is another good NTSC web-page.
    http://www.burnworld.com/dvd/primer/ntsc.htm
    Bean.

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  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2006-03-29 14:09
    Do I really need to use NTSC or can I use a color computer monitor?

    I happen to be one of the less than 1% that don't own a TV. I find I waste signifcant amounts of time when one is around and by going without, I read more and think more clearly. I hate to admit it, but I sometimes cannot talk coherently on the telephone while watching TV.

    Of course if it really is the best solution, I may make the ultimate sacrafice as the cost of a TV is about the same as another monitor.

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • vladkvladk Posts: 26
    cgracey wrote: »
    In designing the Propeller's video circuit and TV object, almost all know-how came from this site:

    www.ntsc-tv.com

    The information there is very thorough and easy to understand.

    Chip Gracey
    Parallax, Inc.

    Hi, Chip!

    Could you please confirm that the mentioned URL is still has a value?

    The site looks weird and out of real condenced technical info, so I'd prefer to read Video Demystified...


    Regards, Vladislav



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