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Copy Scart Signal

Discussion in 'Electronic Design' started by hamilton, Jan 3, 2005.

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  1. hamilton

    hamilton Guest

    The limit of an A/D converter sample rate may distort the video signal.
    If you can live with a little distortion this will work fine.
    You will need to define that "exactly" means to you.

    Speed will also need to be defined.

    A unit like "TiVo" may work for you.
    It has hardware video compression in the box.

    There are PCI video input cards available for PCs.

    How big a unit are you trying to build ?

    Its called a video tape recorder.

    Good luck, you have only scratched the surface in design and cost.
     
  2. Spookgud

    Spookgud Guest

    If i want to copy videosignal exactly as it is, how do I do?
    Is the easy way to sample the signal with AD, and after back to DA?
    Or is it posible to do it analoge?

    Best Regards Peter
     
  3. Spookgud

    Spookgud Guest

    If i want to copy videosignal exactly as it is, how do I do?
    I want it to copy the signal and play it back att same time in a loop and it
    can not be any distortion.
    It most act stand alone after the copy to.
     
  4. Rich Grise

    Rich Grise Guest

    Sounds like he wants to tap into the security cam and play a recording of
    an empty hall so he can sneak in and do his spy stuff without getting
    caught. Or maybe make a busload of passengers look bored. ;-)

    Good Luck!
    Rich
     
  5. Spookgud

    Spookgud Guest

    If i want to copy videosignal exactly as it is, how do I do?
    Yes this is exactly what I want to do!
    But it is not posible with AD and some memory and playback it with same
    quality?
     
  6. Rich Grise

    Rich Grise Guest

    Sorry, to do crimes, you're on your own around here. And if it's to keep a
    bus from blowing up, I'd rather work on getting into Sandra's knickers,
    thanks anyway.

    But thank you for your forthrightness.

    And yes, it is possible to do the way you ask. Look around for digitizing
    frame grabbers or something.

    Good Luck!
    Rich
     
  7. hamilton

    hamilton Guest

    Hmmm, A video signal in 15 Mhz.

    An A/D converter will need to be 30 Mhz to get as mush data as possible.

    To store one second of video will need 60 Megabytes per second.

    30 megasamples per second at 12-16 bits each sample.

    As I said in my first answer, good luck on this design and cost.

    PS: Yes it can be done, but if you think this can be done cheap or easy,
    you better find another way.
     
  8. Spookgud

    Spookgud Guest

    Is nothing about crimes but have to do with security. Is it posible to order
    complete some were?
     
  9. Peter,

    These days you can buy DVD recorders with build in HDD. These ones record
    the (TV) video on the HDD and make it available to manipulate it and
    eventually burn it on a DVD. The latter can be played as often as you want.
    Drawback: They're still little bit expensive.

    petrus bitbyter
     
  10. hamilton

    hamilton Guest

    A complete what ???

    A complete secruity system ??

    A complete video system ?

    A complete what ???

    You really need to define this better if you want a direct answer.

    Sorry
     
  11. Rich Grise

    Rich Grise Guest

    What you describe here is a camcorder.

    What are you trying to accomplish?

    We have insufficient information to give a meaningful answer.

    Thanks,
    Rich
     
  12. Spookgud

    Spookgud Guest

    Do you now some portabel with battery, what prise and where to find?
     
  13. Spookgud

    Spookgud Guest

    I dont whant RF output only copy the orginal scart signal and freez it.
    If you have a security camera and whant to loop the picture how do I do?
    It can´t be so much of information if I make a AD for just that frame.
    I want to play it upp like a still picture, not a moving picture, same I
    pause the videorecorder.
     
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