Method executed by pen or pen detection apparatus that detects the pen

A method performed by a pen or a pen detection apparatus that detects the pen, the method comprising:

• acquiring a pen pressure level according to a force applied to a pen nib of the pen;
• generating a pen-down event based on a result of comparing the pen pressure level and a first threshold, wherein the pen-down event indicates that the pen is moved from outside of a sensing range to inside of the sensing range, and the sensing range indicates a range in which the pen is detectable by the pen detection apparatus or the pen detection apparatus is detectable by the pen;
• and
• generating a pen-up event based on a result of comparing the pen pressure level and a second threshold different from the first threshold, wherein the pen-up event indicates that the pen is moved from inside of the sensing range to outside of the sensing range.

A method performed by a pen or a pen detection apparatus that detects the pen, the method comprising:

• acquiring a pen pressure level according to a force applied to a pen nib of the pen;
• generating a pen-down event based on a result of comparing the pen pressure level and a pen pressure determination threshold;
• and
• updating the pen pressure determination threshold to an updated pen pressure determination threshold, triggered by the generating of the pen-down event,
• wherein the generating of the pen-down event includes generating a (k+1)th pen-down event based on a result of comparing the pen pressure level and the updated pen pressure determination threshold after the updating the pen pressure determination threshold triggered by generating a kth pen-down event.