Many of you have held the S Pen in your hand before and many of you like this digital pen. However, few people know how the pen actually works. Today we'll take a look at how this technology works and what Samsung has improved in the S Pen v Notes 4 compared to older models. In the first Note, this pen was also not as expected. However, Samsung has put a lot of effort into using it to its full potential. Today's 4th upgrade basically doubled the number of detected pen levels as far as pressure is concerned.
In the Note 3, the S Pen detected 1 levels, and in today's Note 024, it already detects 4. This number does not work exactly as one would think. It is true that the more I press the pen, the thicker the line it writes, but the human eye will certainly not be able to detect even 2 different thicknesses. This number helps the mobile to more accurately recognize what activity you are doing with the pen, whether you are drawing, writing or just "tapping". Another huge change from previous models is the absence of a battery inside the pen. Until now, the pen contained a small flashlight that was charged using NFC technology when inserted into a mobile phone.
S Pen v Galaxy Note 4 has a special electronic board at the tip, which reflects electromagnetic waves emitted from a special layer located just below the display. The Samsung team achieved the ability to detect the pen even without touching the screen, which it called "Air View". This magnetic field is created by small coils that are placed just below the display of the mobile phone, which send energy out. The board that controls these coils turns them on and off at high speed and the team actually creates electromagnetic energy in the relevant area from the display.
This energy is transferred to internal resonant circuits inside the S Pen, which reflect the energy back to the display, carrying information such as the coordinates, the precise angle of the pen to the display, and the pressure applied to the pen. After receiving this energy back, the mobile knows where the pen is located, what angle it makes and what pressure is exerted on it. The mobile with this information can then work and create the appropriate commands, such as to start drawing on the display and so on. It certainly won't replace paper and pencil, but Samsung has added the quality to the pen that is necessary for a good user experience.
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