Electronic pen and inclined handwriting adjustment method thereof, inclined handwriting adjustment system, and adjustment method thereof

Patent metadata

Field	Value
Publication number	US-11093050-B2
Application number	US-201916631234-A
Country	US
Kind code	B2
Filing date	May 29, 2019
Priority date	May 30, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

An electronic pen and a tilt handwriting adjustment method thereof, a tilt handwriting adjustment system and an adjusting method thereof are provided. The electronic pen includes a pen body, a detector and a processor provided within the pen body. The detector is configured to detect a tilt angle of the pen body with respect to a writing plane, and output a corresponding detection parameter value; and the processor is configured to acquire the detection parameter value, and generate and output a driving signal according to the detection parameter value, and a characteristic parameter value of the driving signal corresponds to the tilt angle.

First claim

What is claimed is:

1. An electronic pen, comprising:
a pen body; and
a detector and a processor provided within the pen body,
wherein the detector is configured to detect a tilt angle of the pen body with respect to a writing plane, and output a corresponding detection parameter valued,
the processor is configured to acquire the detection parameter value, and generate and output a driving signal according to the detection parameter value, and a characteristic parameter value of the driving signal corresponds to the tilt angle,
the detection parameter value comprises a voltage parameter value, and the processor is configured to acquire the voltage parameter value, and generate and output the driving signal according to the voltage parameter value,
the detector comprises a sliding resistance component, and the sliding resistance component comprises a sliding resistor and a slider,
a first end of the sliding resistor is configured to be electrically connected with a first power supply terminal, and a second end of the sliding resistor is configured to be electrically connected with a second power supply terminal, and
the slider is configured to slide on the sliding resistor as the tilt angle of the pen body changes.

2. The electronic pen according to claim 1 , wherein a cross-sectional shape of the sliding resistor that is cut by a plane parallel to a central axis of the pen body is an arc shape, the slider is coupled to the processor through a connecting rod,
and a material of the connecting rod comprises a conductive material,
the first end of the sliding resistor is one end of the arc shape, and the second end of the sliding resistor is the other end of the arc shape.

3. The electronic pen according to claim 2 , wherein resistance between the first end of the sliding resistor and a contact point of the slider and the sliding resistor has a first resistance value, resistance between the second end of the sliding resistor and the contact point of the slider and the sliding resistor has a second resistance value, and a relationship among the tilt angle, the first resistance value and the second resistance value is:

R
⁢
11

⁢

:

R
⁢
1
⁢
2

=

(

β
-
α

)

:
α

,

where, R11 represents the first resistance value, R12 represents the second resistance value, a represents the tilt angle, and β represents a radian corresponding to an arc line between the first end of the sliding resistor and the second end of the sliding resistor.

4. The electronic pen according to claim 3 , wherein the detector further comprises a fixed-value resistor; the sliding resistor and the fixed-value resistor are arranged in series between the first power supply terminal and the second power supply terminal; and a relationship between the tilt angle and the voltage parameter value is:

V
⁢
0

=

(

V
⁢
1

-

V
⁢
2

)

×

(

a
·
R

⁢

⁢
1

β

+

R
⁢
2

)

(

R
⁢
1

+

R
⁢
2

)

,

where, V0 represents the voltage parameter value; V1 represents a first power supply voltage output from the first power supply terminal; V2 represents a second power supply voltage output from the second power supply terminal, the first power supply voltage and the second power supply voltage are different from each other; R1 represents a fixed resistance value of the sliding resistor, R1=R11+R12; and R2 represents a resistance value of the fixed-value resistor.

5. The electronic pen according to claim 1 , wherein a shape of the sliding resistor is a hollow hemispherical shell; a symmetry axis of the sliding resistor is a central axis of the pen body; the slider is coupled to the processor through a connecting rod; and a material of the connecting rod comprises a conductive material,
the first end of the sliding resistor is a vertex of the hollow hemispherical shell, and the second end of the sliding resistor is any point of an edge of the hollow hemispherical shell.

6. The electronic pen according to claim 1 , wherein a line width of a handwriting scribed by the electronic pen is configured to be negatively correlated with the tilt angle.

7. A tilt handwriting adjustment system, comprising: a display panel, and the electronic pen according to claim 1 ,
wherein the display panel is configured to receive the driving signal, and adjust and display a handwriting according to the characteristic parameter value of the driving signal; and a line width of the handwriting corresponds to the tilt angle.

8. An adjustment method of the tilt handwriting adjustment system according to claim 7 , comprising:
detecting the detection parameter value corresponding to the tilt angle of the pen body;
generating the driving signal according to the detection parameter value, the characteristic parameter value of the driving signal corresponding to the tilt angle;
outputting the driving signal; and
receiving the driving signal by the display panel, and adjusting and displaying the handwriting according to the characteristic parameter value of the driving signal.

9. A tilt hand

Assignees

• Hefei Boe Optoelectronics Tech
• Boe Technology Group Co Ltd

Inventors

• Yang Guanglei
• Fang Zhixiang
• He Jian
• Tang Zhen
• Ding Peng
• Wang Meng
• Li Chunhua
• Hu Xuxu

Classifications

• G06F3/03545 Primary

  Pens or stylus · CPC title

• G01C9/00

  Measuring inclination, e.g. by clinometers, by levels · CPC title

• G01B7/30

  for measuring angles or tapers; for testing the alignment of axes · CPC title

• G06F3/0383

  Signal control means within the pointing device · CPC title

• G06F3/0346 Primary

  with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors · CPC title