Digitizer system with pen touch pressure induction function

Abstract

The invention relates to an input device of a computer, in particular to a digitizer system with a pen touch pressure induction function, which comprises a digitizer and a brush, wherein an RFID (Radio Frequency Identification Device) reader chip is arranged in the digitizer, an RFID responder chip is arranged in a logic control circuit of the brush, the brush obtains energy from a wireless radiofrequency signal transmitted by the RFID reader chip, strokes of a pen core are detected in an electromagnetic induction manner to obtain pressure induction information of the brush acting on the touch screen of the digitizer, the obtained pressure induction information is transmitted to the RFID reader chip on the digitizer in a wireless manner through the RFID responder chip on the brush, and the digitizer processes the received pressure induction information and sends the processed data to an upper computer. The digitizer system can realize the pressure induction function on the common touch screen of the digitizer by adopting the wireless and passive brush.

Description

technical field [0001] The invention relates to an input device of a computer, in particular to a digital board system used when computer drawing software is used for drawing operation. Background technique [0002] The digital board system of the computer is an input device that utilizes the computer to carry out drawing operations, and it includes a digital board and a paintbrush. The digital board is provided with a common touch screen and a USB interface. screen controller. The paintbrush includes a pen shell, a pen core and a logic control circuit located in the pen shell. The operator draws lines on the touch screen of the tablet through a paintbrush, so as to realize the drawing operation of the computer. [0003] In order to achieve the brushstroke effect and painting feeling when painting in the real world, it is usually necessary to realize the function of directly reflecting the strength of the brush touching the drawing board into the thickness of the drawn lin...

AI Technical Summary

Problems solved by technology

If the connection line is removed for the convenience of use and the transmission is done wirelessly, the battery must be used to power the paintbrush, which will cause a series of problems such as the trouble of replacing the battery and unstable performance due to weakened battery power.

[0010] To sum up, the pressure-sensitive paintbrush using wireless passive technology is convenient and applicable, but it relies on the electromagnetic induction screen, and the overall price is expensive. Although the products of other brands are relatively cheap, the pressure-sensitive brush needs to use batteries, which is cumbersome and difficult to use. inconvenient

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