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Unfolding Nature Shop: Unfolding Nature: Being in the Implicate Order

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InvisiblePinhead
Oregano
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Schematics Needed!
    #5520349 - 04/16/06 07:26 AM (17 years, 9 months ago)

Shomer-Tec has had these telephone devices for decades!!
http://www.shomer-tec.com/site/product.cfm?id=99883BEF-DFB5-B918-AE2DE226C81357FB
Would anyone here have schematics of this or any of their other telehone devices? Any idea how they're made?


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InvisibleOJK
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Re: Schematics Needed! [Re: Pinhead]
    #5520416 - 04/16/06 08:39 AM (17 years, 9 months ago)

What possible application could such a device have?


Edited by Odiumjunkie (04/16/06 09:52 AM)


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OfflineQuadrant6
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Registered: 07/24/03
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Re: Schematics Needed! [Re: OJK]
    #5520476 - 04/16/06 09:12 AM (17 years, 9 months ago)

that site is gonna get me in trouble


--------------------
"Time is the substance from which I am made. Time is a river which carries me along, but I am the river; it is a tiger that devours me, but I am the tiger; it is a fire that consumes me, but I am the fire."
Jorge Luis Borges


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OfflineKonnrade
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Re: Schematics Needed! [Re: OJK]
    #5521894 - 04/16/06 05:43 PM (17 years, 9 months ago)

Quote:

Odiumjunkie said:
What possible application could such a device have?




Only one, really: being a gigantic pain in the ass for the unlucky bastard whose phone line it gets attached to.


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I find your lack of faith disturbing


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InvisiblePinhead
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Re: Schematics Needed! [Re: Konnrade]
    #5522353 - 04/16/06 07:54 PM (17 years, 9 months ago)

Quote:

Konnrade said:
Quote:

Odiumjunkie said:
What possible application could such a device have?




Only one, really: being a gigantic pain in the ass for the unlucky bastard whose phone line it gets attached to.



Exactly!! Now I'm looking for a schematic not anyone's opinion on my actions or intent.


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OfflineKonnrade
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Re: Schematics Needed! [Re: Pinhead]
    #5523360 - 04/17/06 02:00 AM (17 years, 9 months ago)

Is the device patented?

If so, the patent office would have it on file and available on their website.

They may or may not have a schematic, but it's worth a look.

Their patent image records have to be accessed through a buggy-as-fuck quicktime presentation, though. I guess it's to make it impossible for the mentally handicapped to save the images to their computer.

For those not mentally infeebled, the print screen button is k3y :wink:


--------------------

I find your lack of faith disturbing


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OfflineSeussA
Error: divide byzero

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Re: Schematics Needed! [Re: Pinhead]
    #5523530 - 04/17/06 05:27 AM (17 years, 9 months ago)

Are you sure this device works with touch tone dialing? It would be very easy to implement with the old pulse dialing, but difficult with touch tone dialing. With pulse dialing, you would simply add an extra pulse on the line every now and then, except when the number is a 9 or a 1. The logic for this would be pretty simple. With tone dialing, you would have to remove the tones that are on the line and provide new tones in their place. The first method would work by simply plugging into an existing phone system (piggy back style) while the second method would require the device to be spliced into the wire between the phone and the dmark.


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Just another spore in the wind.


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InvisibleRandalFlagg
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Re: Schematics Needed! [Re: Seuss]
    #5523764 - 04/17/06 08:30 AM (17 years, 9 months ago)

Another thing...

By the time you buy all of the components and build it, it would have probably been cheaper to just buy the complete one from the company.

For example, would it be cheaper for you to buy a car or to build one yourself? It would be much cheaper to buy one of course.


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OfflineTheCow
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Re: Schematics Needed! [Re: RandalFlagg]
    #5524358 - 04/17/06 11:13 AM (17 years, 9 months ago)

Some bandpass filters, and you are good to go. Just filter out the last few tones, input whatever tone you want.

Edit: Thats not entirely true, get yourself a TI 6713 board or something. Read in the frequencies, fft it, then determine what frequencies the person is sending, and change to whatever you want. This way you can tell if they are trying to dial 911. Obviously its much more complicated then this, but its mostly a programming job at this point.


Edited by TheCow (04/17/06 11:29 AM)


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Offlinesupra
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Re: Schematics Needed! [Re: TheCow]
    #5524769 - 04/17/06 12:43 PM (17 years, 9 months ago)

not much really, why not just let the first three go through no matter what, if you scrambles these three most likely it wouldnt work anyways becaue you would get out of area numbers....just scrable last four or something, play in a different order.

peace


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OfflineSeussA
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Re: Schematics Needed! [Re: TheCow]
    #5524940 - 04/17/06 01:15 PM (17 years, 9 months ago)

> just scrable last four or something, play in a different order.

Or let 9's and 1's go through and mess with any other number.

> Some bandpass filters, and you are good to go

Exactly my point. Using filters, you have to splice into the line rather than piggyback on top of it. The more I think about it, the more certain I become that what is described can only work with pulse dialing. That isn't to say you couldn't do the same thing with tone dialing, just that it would be much more difficult and you would have to splice rather than tap the line.

One last tidbit... tones generated by dialing are actually two different tones combined into a single sound. Each row and each column have a different frequency. When you push a button, it combines the two frequences to generate an odd sounding tone. They make chips that both decode and encode tones.


--------------------
Just another spore in the wind.


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Unfolding Nature Shop: Unfolding Nature: Being in the Implicate Order


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