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pasicr
Joined: 13 Aug 2005
Posts: 246
Helped: 6
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 06 Dec 2007 21:34 Teletext inserter |
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Hi for all,
I am interested for made a teletext inserter. Can somebody share with me some info about this topic,
I search on net and I found a lot of info, but I need info about "homemade" teletext inserter,
useful info,
http://www.cebra.dk
http://www.sd-electronics.co.yu/teletext.html
http://www.hamradio.si/~s51kq/TTX.HTM
http://www.fab-online.com
Best regards
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shawndaking
Joined: 20 Jun 2001
Posts: 235
Helped: 6
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| 12 Dec 2007 16:40 Re: Teletext inserter |
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a. you need a ttx editing software, to produce teletext pages.
you can find this on the internet.
b. rs-232 is very common as a data mean between the pc and your inserter.
some software will produce this interface, other options are parallel or ethernet interface.
c. you can use a video encoder device for the teletext insertion like philips.
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manish12
Joined: 21 Nov 2006
Posts: 869
Helped: 24
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| 29 Dec 2007 10:29 Re: Teletext inserter |
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Nuts and volts April 2005 page no 62-67 part 1
Nuts and volts may 2005 page no 60-64 part 2
it is pic based and required little h/w .
i am not able to drag these pages from the magazin , so not uploaded .
how can i drag some pages from complete pdf file ?
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pasicr
Joined: 13 Aug 2005
Posts: 246
Helped: 6
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| 29 Dec 2007 22:16 Re: Teletext inserter |
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Hi manish12,
to extract some pages from complete magazin use ADOBE Acrobat Reader, in meny DOCUMENT use option "extract pages", follow the procedure,
regards
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manish12
Joined: 21 Nov 2006
Posts: 869
Helped: 24
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| 30 Dec 2007 4:34 Re: Teletext inserter |
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thank you , i drag it .
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traxonja
Joined: 06 Apr 2004
Posts: 109
Helped: 1
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| 19 Jan 2008 1:43 Re: Teletext inserter |
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Here is a hardware subtitler with teletext chip and PIC:
http://www.elektronika.ba/el.sheme/?akc=daj_shemu&idshema=317
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bkilian
Joined: 21 Jan 2008
Posts: 1
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| 23 Jan 2008 21:24 Teletext inserter |
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Hello
I am interested in construcion of teletext inserter too. I think the best way to make it will be a circuit based ona a FPGA or similar part connected to dual port RAM (I'm regarding IDT7132 chip cause I need only 2 teletext pages to transmit). On the other port of RAM would be any microcontroller to upload pages into memory. That idea is very familiar with that given by pasicr:
http://www.hamradio.si/~s51kq/TTX.HTM
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