Active capacitive pen with color sucking function

Abstract

The application discloses an active capacitive pen with color sucking function, comprising a pen body, the front end of which is provided with a pen point capable of emitting an input signal; and a color module located at the rear end of the pen body and used for detecting the color of the surface of an object; the color module comprises a transparent tail cover, a color sensor located in the transparent tail cover, and a circuit board electrically connected with the color sensor; the circuit board is provided with a signal processing module, a format conversion module and a data transmission module; the signal processing module is used for receiving the electric signal of the color sensor and converting the electric signal into a digital signal; the format conversion module is used for converting the digital signal into a color value in a standard color format; and the data transmission module is used for sending the color value to a matching device; the color sensor is arranged, when it is necessary to switch the color used for drawing, the color information of the environment where the color sensor is located is directly collected through the control of the color sensor, so that more convenient and fast color switching is realized, and the efficiency of drawing work is improved.

Description

Technical Field

[0001] This invention relates to the field of capacitive pen technology, and more particularly to an active capacitive pen with a color-absorbing function. Background Technology

[0002] Advances in stylus technology have enabled users to draw patterns or write text on the screens of devices such as electronic whiteboards, tablets, mobile phones, graphics tablets, conference machines, and computers using electromagnetic or capacitive touch methods. Furthermore, users can adjust the colors used for drawing or writing according to their needs.

[0003] Currently, when adjusting colors, users typically select the color they want to use from the color indicator area or palette area displayed on the screen. However, this is not very intuitive for users, as each color adjustment requires operation in the palette area or brush color indicator area, thus affecting work efficiency. Summary of the Invention

[0004] To address the shortcomings mentioned above, this invention provides an active capacitive pen with a color-absorbing function.

[0005] To achieve the above objectives, the present invention provides an active capacitive pen with a color-absorbing function, comprising:

[0006] The pen body has a pen tip at its front end that can emit input signals;

[0007] A color module, located at the rear end of the pen body, is used to detect the color of an object's surface; the color module includes:

[0008] Transparent tail cap;

[0009] The color sensor is located inside the transparent tail cap;

[0010] The circuit board electrically connected to the color sensor;

[0011] The circuit board is equipped with a signal processing module, a format conversion module, and a data transmission module. The signal processing module is used to receive the electrical signal from the color sensor and convert the electrical signal into a digital signal. The format conversion module is used to convert the digital signal into a color value in a standard color format. The data transmission module is used to send the color value to the pairing device.

[0012] Preferably, the standard color format is RGB or CMYK.

[0013] Preferably, the pen body includes a pen barrel and a motherboard bracket, the motherboard bracket is disposed inside the pen barrel, the motherboard bracket is provided with the circuit board, and the pen barrel is provided with a battery for powering the circuit board.

[0014] Preferably, the pen tip is connected to the circuit board via a combined antenna.

[0015] Preferably, the combined antenna includes a first transmitting electrode, a second transmitting electrode, and a shield. The first transmitting electrode and the second transmitting electrode are electrically connected to the circuit board, the second transmitting electrode surrounds the first transmitting electrode, and the shield is located between the first transmitting electrode and the second transmitting electrode. The shield partially covers the first transmitting electrode, leaving both ends of the first transmitting electrode exposed to shield it, and the end of the first transmitting electrode near the pen tip is a certain distance away from the second transmitting electrode.

[0016] Preferably, a first conductive spring is fitted onto the first transmitting electrode, with one end of the first conductive spring connected to the shielding cover and the other end electrically connected to the circuit board.

[0017] Preferably, the second emitting electrode includes an electrode ring, and the second emitting electrode is provided with an external thread, the external thread being located below the electrode ring, and the second emitting electrode being connected to the pen tip through the external thread.

[0018] Preferably, a second conductive spring is fitted onto the second transmitting electrode, with one end of the second conductive spring located on the electrode ring and the other end electrically connected to the circuit board.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] Because this invention incorporates a color sensor, when it is necessary to switch the color used for drawing, the color sensor is directly controlled to collect the color information of the surrounding environment and then sent to the touch drawing board to achieve color switching. This eliminates the need for the pen color indicator area or the color palette area, thus enabling more convenient and faster color switching and improving the efficiency of drawing work. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the active capacitive pen with color-absorbing function of the present invention;

[0022] Figure 2 This is an exploded view of the active capacitive pen with color-absorbing function of the present invention.

[0023] Figure 3 This is a structural diagram of the combined antenna in the active capacitive pen with color-absorbing function of the present invention;

[0024] Figure 4 for Figure 3 A sectional view.

[0025] Figure label:

[0026] 1. Pen body; 2. Color sensor; 3. Pen tip; 11. Pen barrel; 12. Mainboard bracket; 4. Transparent tail cap; 5. Combined antenna; 6. Circuit board; 7. Battery; 51. First transmitting electrode; 52. Second transmitting electrode; 53. Shielding cover; 54. First conductive spring; 55. Second conductive spring; 521. Electrode ring; 522. External thread. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail as follows:

[0031] like Figure 1 As shown, the present invention provides an active capacitive pen with a color-absorbing function, comprising:

[0032] The pen body 1 has a pen tip 3 at its front end that can emit input signals;

[0033] The color module, located at the rear of the pen body 1, is used to detect the color of an object's surface; the color module includes:

[0034] 4. Transparent tail cap;

[0035] Color sensor 2 is located inside the transparent tail cap 4;

[0036] Circuit board 6 electrically connected to color sensor 2;

[0037] The circuit board 6 is equipped with a signal processing module, a format conversion module, and a data transmission module. The signal processing module is used to receive the electrical signal from the color sensor 2 and convert the electrical signal into a digital signal. The format conversion module is used to convert the digital signal into a color value in a standard color format. The data transmission module is used to send the color value to the pairing device.

[0038] In this embodiment, the format conversion module converts the digital signal into RGB or CMYK format. The standard color format is RGB or CMYK. The data transmission module uses Bluetooth, Wi-Fi, or other wireless technologies to send the color values.

[0039] Reference Figure 2 The pen body 1 includes a pen barrel 11 and a main board bracket 12. The main board bracket 12 is located inside the pen barrel 11, and a circuit board 6 is located inside the main board bracket 12. A battery 7 for powering the circuit board 6 is located inside the pen barrel 11. The pen tip 3 is connected to the circuit board 6 via a combined antenna 5.

[0040] In this embodiment, the pen barrel 11 is equipped with buttons for connecting to the circuit board 6. One button is a power button, and the other is a function button, which can switch functions such as color recognition or writing. An LED indicator is provided on the pen barrel 11 for power on / off indication; these are standard functions and will not be described in detail. A calibration module is also provided on the circuit board 6 for calibrating the color sensor 2.

[0041] Reference Figure 3 The combined antenna 5 includes a first transmitting electrode 51, a second transmitting electrode 52, and a shielding cover 53. The first transmitting electrode 51 and the second transmitting electrode 52 are electrically connected to the circuit board 6, respectively. The second transmitting electrode 52 surrounds the first transmitting electrode 51. The shielding cover 53 is located between the first transmitting electrode 51 and the second transmitting electrode 52. The shielding cover 53 partially covers the first transmitting electrode 51, exposing both ends of the first transmitting electrode 51 to shield the first transmitting electrode 51. The end of the first transmitting electrode 51 near the pen tip 3 is a certain distance away from the second transmitting electrode 52.

[0042] In this embodiment, in order to improve the overall stability of the capacitive pen, the combined antenna 5 also includes a bracket. The bracket is located inside the first transmitting electrode 51 and is arranged longitudinally from the end to the tail of the first transmitting electrode 51. A pressure sensor is provided at the tail end of the bracket. A limiting cavity is formed at one end of the circuit board 6 so that the pen tip 3 and the combined antenna 5 can move within the limiting cavity to realize the writing movement of the pen tip 3.

[0043] Specifically, after the pen tip 3 is pressed, the pen tip 3 moves toward the pressure sensor. The pressure sensor is connected to the circuit board 6, and the pressure sensor converts the pressure signal of the pen tip 3 movement into an electrical signal and sends it to the circuit board 6.

[0044] Reference Figure 4 A first conductive spring 54 is fitted onto the first transmitting electrode 51. One end of the first conductive spring 54 is connected to the shielding cover 53, and the other end is electrically connected to the circuit board 6. The second transmitting electrode 52 includes an electrode ring 521, and the second transmitting electrode 52 has an external thread 522. The external thread 522 is located below the electrode ring 521, and the second transmitting electrode 52 is connected to the pen tip 3 through the external thread 522. A second conductive spring 55 is fitted onto the second transmitting electrode 52. One end of the second conductive spring 55 is located on the electrode ring 521, and the other end is electrically connected to the circuit board 6.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An active capacitive pen with color-absorbing function, characterized in that, include: The pen body has a pen tip at its front end that can emit input signals; The color module, located at the rear end of the pen body, is used to detect the color of the object's surface. The color module includes: Transparent tail cap; The color sensor is located inside the transparent tail cap; The circuit board electrically connected to the color sensor; The circuit board is equipped with a signal processing module, a format conversion module, and a data transmission module. The signal processing module is used to receive the electrical signal from the color sensor and convert the electrical signal into a digital signal. The format conversion module is used to convert the digital signal into a color value in a standard color format. The data transmission module is used to send the color value to the pairing device. The pen body includes a pen barrel and a motherboard bracket. The motherboard bracket is located inside the pen barrel, and the circuit board is located inside the motherboard bracket. A battery for powering the circuit board is located inside the pen barrel. The pen tip is connected to the circuit board via a combined antenna; The combined antenna includes a first transmitting electrode, a second transmitting electrode, and a shield. The first transmitting electrode and the second transmitting electrode are electrically connected to the circuit board, respectively. The second transmitting electrode surrounds the first transmitting electrode. The shield is located between the first transmitting electrode and the second transmitting electrode. The shield partially covers the first transmitting electrode, leaving both ends of the first transmitting electrode exposed to shield it. The end of the first transmitting electrode near the pen tip is a certain distance away from the second transmitting electrode. The combined antenna also includes a bracket located inside the first transmitting electrode. The bracket is longitudinally arranged inside the first transmitting electrode from the end to the tail. A pressure sensor is provided at the tail end of the bracket. A limiting cavity is formed at one end of the circuit board so that the pen tip and the combined antenna can move within the limiting cavity to realize the writing movement of the pen tip.

2. The active capacitive pen with color-absorbing function as described in claim 1, characterized in that, The standard color format is RGB or CMYK.

3. The active capacitive pen with color-absorbing function as described in claim 1, characterized in that, A first conductive spring is fitted onto the first transmitting electrode. One end of the first conductive spring is connected to the shielding cover, and the other end is electrically connected to the circuit board.

4. The active capacitive pen with color-absorbing function as described in claim 3, characterized in that, The second transmitting electrode includes an electrode ring and has an external thread. The external thread is located below the electrode ring and the second transmitting electrode is connected to the pen tip through the external thread.

5. The active capacitive pen with color-absorbing function as described in claim 4, characterized in that, A second conductive spring is fitted onto the second transmitting electrode. One end of the second conductive spring is located on the electrode ring, and the other end is electrically connected to the circuit board.

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