Writing and trigging device of electronic pen

Abstract

The invention discloses a writing and triggering device of an electronic pen. The device comprises a pen shell and a pen tip; the device is characterized by further comprising a capacitor movable pole, a capacitor fixed pole, a flexible element, a capacitance value measuring circuit, a data processing circuit and a wireless transmitting circuit; the capacitor movable pole is arranged at the front end of the pen shell and can move vertically; the capacitor fixed pole is fixed in the pen shell and cannot move freely; one end of the flexible element is fixed at the capacitor movable pole, and the other end of the flexible element is fixed at the capacitor fixed pole or on a part with a phase displacement change with the pen shell; the capacitance value measuring circuit and a capacitance fixing circuit are formed into a capacitor body, and two poles of the capacitor body are respectively connected with a capacitance input end of the capacitance value measuring circuit; the digital processing circuit is connected with the capacitance value measuring circuit and used for reading the capacitance numerical value from the capacitance value measuring circuit; and the wireless transmitting circuit is connected with the data processing circuit and used for transmitting the pen tip touch data. The device provided by the invention can independently finish mechanical contact writing and triggering in a writing pen and can detect the wiring pressure size.

Description

Technical field [0001] The invention relates to the field of electronic triggering, in particular to a writing trigger device of an electronic pen. Background technique [0002] With the widespread application of interactive electronic whiteboards and electronic touch screens, electronic writing pens as important human-computer interaction tools have also been widely used. The main function of the electronic writing pen is that the writing action triggers the electronic device of the writing pen, and generates various electronic signals according to different applications. For example, infrared light is emitted during writing to use an optical positioning device to complete the positioning of the writing position; for example, ultrasonic waves are emitted during writing to use an ultrasonic positioning device to complete the positioning of the writing position; For example, when writing, the touch force is detected at the same time and transmitted to the electronic writing device...

AI Technical Summary

Problems solved by technology

[0006] However, this technology requires the cooperation of the pen and the electromagnetic tablet. The single stylus can only generate weak electromagnetic field signals according to touch events, and cannot work independently in occasions other than the electromagnetic tablet, and the application scenarios are limited.

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