Wie funktioniert der tiptoi Stift? Der geheime Punktcode im Buch.

You probably know the

tiptoi

pen and the

tiptoi

system. I think there are two types of people: those who use it and don't wonder how it works or think it's magic and then there are those who suspect there is an interesting technique. Puzzles To solve it, that's exactly what we're doing today in this video. I have studied the patents beforehand and to really know what is going on there, we will unscrew the tiptoi and look inside with the microscope and'. We'll solve the other part of the secret with this infrared camera and then we'll get to the heart of the story with these pliers.

In this video you will also discover how the duel between the pliers and the tiptoi ends. for enigmascope Knowledge beyond school On this channel we cover all kinds of interesting things in science and technology and solve puzzles. Which is why today we are going to break down the secret of the tiptoi system. You probably know how it works. the pen in the book. Not today. Now I suspect there is some kind of chip here that is telling the pen something and I can tell you that is not how it works. I have several secrets here in the book and several.

The secrets here in the pen and what happens between the pen and the book. Quite clever and unexpectedly requires a lot of strange technology. The basic operation of this strange technology is written in a patent from 2003. A Swedish group seems to have written down their idea. idea: how to quickly read a printed dot grid from a dot grid. You need a camera with infrared illumination in a pen on the computer and then you receive a voice message. Interesting patent from 2011. This patent describes how to generate it. The numbers in these dot patterns encode the messages and it is also described in detail here how a computer can extract this code from a can of images and the pen works in exactly the same way i.e. the camera sees a grid of dots and converts it. on a number and with this number a suitable voice message is searched.

The tiptoi system has been around for many years, the pens are already in their fourth generation and fourth generation ballpoint pens. We also bought it and if we look at it a little. I bought the basic package, there is only a pen and a USB. The USB also tells us that there has to be a computer there somehow and in the hint here we suspect there is a camera, let's listen for something there. The audio file is missing and that is a secret, there are files in it and the voice messages are in these files, he gets the files with the tiptoi manager and he can also see from the manager how much memory his pen has, but before decrypting our pencil, let's take a look at a tiptoi. the book with the microscope.

Let's zoom in, we can see the print grid and somewhere in this grid the code is hidden. We approach the kitten and look at the white area. There are some dots that should actually be white. What is happening is what is eating the secret. We look at this in another book. I found this ambulance, everything has to be white, but when we walk in we see that there is a regular black pattern on this white one and these are exactly the dots that encode the voice. messages so there is a mystery in this printing grid but there is another secret and that is where we have to look at how printing is done and maybe you know these four basic colors for printing, whether it is inch jet laser or offset printing as it is used For books, you may know magenta yellow and black from these four.

You can mix basic colors with anything else you want, you just have to change the proportions of the mesh by changing the saturation of the colors and get everything to print. Next: Cyan, magenta and yellow inks are invisible in infrared light. That is not the case with black, black is visible, which means that now in the tiptoi book I can create all colors from magenta cial and yellow, including black in this way. and that is invisible to infrared. With black I can print something that is in the information and that is exactly what the tiptoi camera does, simply the information is this pure black and that means that the shorts that we print in the book are. printed in black and the rest of the things you see are printed in cyan, magenta and yellow so far so good, but what does the tiptoi camera see now?

We return to the friendly kitten in the book and our microscope. The microscope changes the name of a tree to little, that is, the normal color camera and replace it, not here, look, we put the camera with a special black and white camera, this one red here, it sees visible and infrared light. We're looking for the kitten again, that's what the kitten. The normal color camera sees and now we have switched to the black and white camera in the visible range. So now you see visible light, in black and white, the interesting thing is the kitten's head, where it's really black because there's information encoded there.

Like everywhere, I have now switched to infrared light, which is what the tiptoi camera now sees on the kitten. In exactly the same place you can see that the kitten has completely disappeared. Now I change back to purely visible light, we see the coded products and the image of the kitten at the same time the infrared zooms out again and the codes have disappeared look again at the black on the kitten I look again at the same place which is what the tiptoi camera sees and exactly this point is the grid that the camera and the tiptoi pen evaluates and the short is determined.

Okay, so we have a grid of points that somehow encodes a number, but how exactly does it work? It all takes place in a 4x4 cell of dots that are actually one millimeter in size and that's what the camera does. go and what the computer is looking for on the tiptoi actually looks like this, that's the secret here is a 4x4 dot matrix to find this money and decode how exactly it works, let's take a look at it now I just rotated the image so I can show it okay, I'm going to show you two cells here, which are two big four by four cells and in these cells there is no big three by three cell, the actual code is there, the rest is just necessary, so up and left just you need to find the cells.

There is a whole community of tiptoi hackers and they have also created this online tool. You can access it on the website here. You can write the codes that we will do now. ten and up Then we see the dot grid and below where I'm now showing, you can see how the actual dot grid is created for the printed image. Now you can see how it changes depending on what I input. sometimes I enter something really big, let's see what happens, it doesn't work, so only numbers up to about 65000, why? Because we have nine points, each point can be in four different positions, which gives 4 to the power of 9 or 2 to the power of 18 possibilities, that's 260,000 possibilities, but two bits are used for error correction and detection, so only 16 bits can be used and that gives about 65,000 possibilities so the dot pattern encodes a number and this number tells the pen which audio file needs to be played and if that doesn't work I have yours Hint for you press the power button and minus button at the same time and the pen greets you in chinese in test mode if you now hold the pen over a pattern then the pen reads the number in front of it digit by digit and that is exactly the coded number that falls consequently and it is also noted that the innards of the pen come from China or, in this case, Taiwan.

We've probably been waiting for this. We screw the pen. Luckily we found a Generation 1 pen because it is clear that this is the pen. He did not survive the operation, dear children, do not try it at home, the one who sleeps. it breaks down if it doesn't work, now you can see the electronic components, there is a board, there are just pieces on this side and we can see the speaker of the audio amplifier. Now let's turn the piece over and see it here. We also have another secret: there is a computer with a special image decoding chip.

We'll see what's inside, because first of all we know what's going on at the tip of the pen. , but you can't see anything in this capsule. In this black capsule it does not open spontaneously and we suspect that there is something exciting there. Finally, with the pliers we try to open the camera module, but somehow. stuck. I'm trying to loosen it here with the pliers and I can screw it on, the camera focus is probably set here at the factory, here we see the LEDs, the infrared LEDs, this is the lens, the lens and on the back is the board with the camera chip, incredibly small, this is the lens, you can see the lens here.

Let's take a closer look and the image is shown as a tiptoi, but how do we get to the camera? Location Good advice is expensive and requires violence. Who can just rip it off and go behind it with the pliers and try to take a look now? This is probably where the camera chip is and that's also the next secret, it's a seemos. Infrared image sensor and now we are working to remove all the plastic around it and unlock Legend Sport with the chip. Let's take a closer look at this infrared CMOS chip. More specifically, this is this orange part with the black area.

The black area is the actual image area with 170 x 170 pixels and around it are all kinds of digital and analog control elements. This is where the sensor is controlled and the image data is also stored. digitized so that they can then be processed by the computer, only the crazy electronics remain, very slowly, the USB and the headphone jack, where is the computer that contains it in this very small chip, the so-called SoC system, the La big black thing is the two gigabytes of flash, two small chips created with memory and cryptography and that is the image processing chip and the camera.