S Pen | 'cutting-edge' | Technology | Small hidden mystery

Samsung GALAXYNote8 evaluation: female votes: heard Samsung Note8 pen is very easy to use?

Author: That can not be used, the company did the evaluation, has long been used, it really easy to use it.

Female votes: ah, I heard that can be written out?

Author: Drop, Samsung Note8 support interest screen quick write, pull out to write, in addition to this also supports balabala (omitted N words) ...

Female votes: My iPhone is not very good recently used it.

Author: ...

As Samsung's flagship model, Samsung Note8 has a high reputation, even if the author of the female ticket is not so concerned about the phone people have heard of the Samsung Note8 different from other mobile phone is its biggest characteristic is a name S Pen stylus so the naming of the Samsung Note series is closer to the essence of the word than the note family in other houses. Why does the stylus not popularize on other smartphones in addition to the Samsung Note series?

See here, maybe many readers will think of the touch screen era of resistive screen.At that time, almost touch screen can be equipped with a resistive touch screen pen, touch screen resistive screen requires a little hard to achieve touch , So the stylus only need to have the strength to withstand a certain amount of strength can be, do not need any technical content to the present capacitive screen era, touch through bioelectricity achieved, of course, there have been capacitive pens appeared, but compared to hand Touch control does not bring any convenience, but the phone itself is difficult to accommodate, so it is not popular is normal.

The screen of the smartphone is getting bigger and bigger, it can not be used to write and draw some waste, but the problem is that the capacitive screen is different from the touch screen, touch accuracy is difficult to control, and the intensity of the two screens can not express the intensity of the notes In other words, want to achieve good writing and drawing experience on the phone, you can not be limited to the screen limits, the new ideas to give a better solution .S Samsung Note series on the S Pen is a new idea Given the excellent solution in the S Pen's 'cutting-edge', embodies cutting-edge technology, so it is inevitable to popularize.

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S Pen's working principle

If you come into contact with the design work, then the tablet will not be unfamiliar.With the tablet and supporting the stylus, we can achieve writing, painting, and can write the intensity of the show.Further, the Samsung Note Series S Pen That is, the entire system of professional tablet was moved to the phone, so we can get excellent writing and drawing experience on Samsung Note8.

So Samsung Note8 is how to move the professional tablet system to the phone? To understand this, we must first understand the working principle of the tablet. From a fundamental point of view, the work process of the tablet is to rely on electromagnetic induction to achieve Equipped with electromagnetic induction plate in the tablet, can produce uniform criss-cross magnetic field.While the stylus also need to issue a magnetic field, when the induction pen moves on the tablet, the magnetic flux changes in order to generate electrical signals .At this time, on You can determine the location of the pen tip by electrical signals in order to achieve painting and writing.

Then the intensity of the light intensity on the tablet is how to achieve it? In fact, performance is not difficult, that is, built-in pressure on the stylus resistance, when the intensity of light and light are different, the resistance of different sizes, resulting in loop magnetic field The size is also different, and the magnetic field generated by cutting the board on the signal strength is different.

Just mentioned the stylus magnetic field and resistance, so the basis for touch control is power.Early tablet, stylus and tablet are wired connection, and later appeared active wireless stylus, through the battery To provide power for the stylus, but this method is more troublesome to use, because the user needs to be a pen battery or charge, while the existence of the battery so that the pen is also difficult to reduce the size.

Later, it appeared there is no need to pen separate access to the power of the stylus.Its implementation is added to the pen tip can be converted into magnetic plate digital power coil, by receiving the magnetic field of the tablet, converted into electrical energy for touch Pen solution.This solution allows the stylus is not built-in battery, the circuit board capacitance can be sufficient to meet the touch of electric energy.

S Pen Samsung Note8 is the system will be transplanted to the phone tablet, Samsung Note8 screen set up a special electromagnetic induction layer, S Pen is wireless passive stylus. That is, S Pen touch Control and the screen is not related to its implementation is dependent on the electromagnetic induction system. As we do not have the conditions for non-destructive S Pen, so move from the Internet to move a picture showing everyone S Pen internal structure, although the old , But the realization of the principle is the same. The pen end has a coil, by the upper part of the pressure sensing resistor, and then up the function keys.

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S Pen put lost function is how to achieve

In S Pen settings, I found that the system prompts that the user is not inserted in the Pen S Pen and after the screen, the system will remind users S Pen did not take away. How to achieve this function? I did not find the relevant information on the Internet, so do a few small experiments to find the realization of anti-loss function principle.

First of all we make assumptions on the principle of realization, in general, there are three principles to keep away from the reminder: First, Bluetooth, the more common is used in the bracelet and smart watch, when the phone is lost, Bluetooth detection reaches a certain distance It will alarm, but there is no power supply on the S Pen, so this rule is excluded.Second, S Pen can release a sustained magnetic field, when the mobile phone detects the magnetic field weakened give a reminder.For the second hypothesis, I made two experiments: one , Put the S Pen can be shielded magnetic tin box and found the phone did not give a reminder; Second, the phone does not move, so that another person with S Pen mobile and found the phone still did not remind. So you can rule out the second Assumptions.

Then the possibility points to the third hypothesis: when the screen-phone detects that the S Pen is not in the phone, the mobile phone will detect the movement and remind it. In general, the motion detection is similar to the motion detection and can be achieved by shaking the phone. S Pen pulled out after shaking screen mobile phone, not long, the phone really gives a reminder.

Finally comes with a few small experiments. S Pen uses the principle of electromagnetic induction, so unlike the capacitive screen, the touch will not be affected by water.In addition, Samsung Note8 support IP68 waterproof and dustproof, so underwater can also be used, Can be said to be an excellent solution to the inability of touchscreen smartphones to interact in watery environments.

S Pen's electromagnetic induction is quite sensitive, the tip does not need to be close to the screen to achieve touch, and when the tip is under pressure to interact with the screen display.So within a certain distance, hand nibs, you will find, Dangling S Pen can interact with the screen display.

By the same token, applying different pressures to the nib across the air can also draw lines with different strokes.

In other words, want to give the phone a thick protective film users do not have to worry about the thickness of the tempered film will affect the sensitivity of S Pen.But I suggest that buy the best surface of the tempered film, which can reduce pen wear degree.

Write in the end

For the first time to use S Pen users, Samsung Note8 handwriting system can be used to describe the magic, but when we understand the principle of its realization, it is not so mysterious, not much to say, I want to move brick Money, to buy female tickets to buy Samsung Note8 went.

This article belongs to the original article, if reprinted, please indicate the source: S Pen 'cutting-edge' small hidden technology mystery http://mobile.zol.com.cn/666/6662219.html

The above is about Samsung GALAXYNote8 product evaluation reports, the Samsung GALAXYNote8 appearance, screen, camera, battery life, performance and other follow-up content, please continue to focus on the Zhongguancun Online Samsung GALAXYNote8 evaluation reports.