Processing device for dot matrix digital pen

Abstract

The utility model provides a processing device for a dot matrix digital pen, which comprises an outer shell and an inner shell, and a circuit board and a battery which are electrically connected are arranged in the inner shell; the circuit board comprises a first circuit board, a second circuit board and a third circuit board which are electrically connected through pins, the first circuit board is provided with a main control chip and a memory chip, the second circuit board is provided with a storage chip and a Bluetooth chip, and the third circuit board is provided with a PD controller and a south core; according to the processing device for the dot matrix digital pen, the problems that the internal space of the dot matrix digital pen is limited and a data storage device is small are solved, meanwhile, the size of the dot matrix digital pen is reduced, the dot matrix digital pen is smaller and more suitable for the hand feeling of holding the pen, during connection, a mobile phone APP does not need to be used, and the processing device is more convenient and rapid to use. The problems that only a small screen of a mobile phone can be used for watching, and multiple persons cannot watch conveniently are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dot matrix digital pen application, and more specifically, relates to a processing device for a dot matrix digital pen. Background Art

[0002] A dot matrix digital pen is a new type of writing tool that prints an invisible dot pattern on ordinary paper. The high-speed camera at the front of the digital pen captures the movement trajectory of the pen tip at any time. At the same time, the pressure sensor transmits the pressure data back to the data processor, and finally transmits the information to the outside via Bluetooth.

[0003] Typically, the structure of a dot matrix digital pen includes: a pressure sensor, a high-speed camera, a processor, a battery, a data storage device, and a Bluetooth module.

[0004] As you write, a camera, combined with a dot matrix coder, records the coordinates of the pen tip's trajectory. Image distortion correction is performed at the pen tip to ensure the accuracy of the recorded coordinates. These coordinates are then converted into an image in real time and transmitted to an electronic device with a display. For example, as described in Chinese patent publication number CN218497474U, this type of dot matrix digital pen has a thick barrel, making it difficult to grip. Furthermore, the limited size of the barrel limits its memory capacity.

[0005] Another approach involves using a camera and dot matrix coding to record the coordinates of the pen tip's trajectory while writing. These coordinates are then transmitted via Bluetooth to an electronic device with a corresponding app installed. The device then converts the coordinates into an image in real time and displays it. However, using such a dot matrix digital pen requires the app to be open, which is extremely inconvenient.

[0006] Currently, some dot-matrix digital pens support offline writing without the need for an app. However, when syncing with the app, the device hosting the app must wait for the coordinates to be converted into an image in real time. Furthermore, due to the limited size of the pen and the limited memory space, the amount of coordinates that can be stored is limited compared to the amount of image data that can be restored. Utility Model Content

[0007] In order to solve the above technical problems, the present invention provides a processing device for a dot matrix digital pen to solve the problems that the dot matrix digital pen has a thick pen body, limited memory space, and needs to be displayed through a corresponding app.

[0008] The purpose and function of the processing device for a dot matrix digital pen of the present invention are achieved by the following specific technical means:

[0009] A processing device for a dot matrix digital pen, comprising an outer shell and an inner shell, wherein an electrically connected circuit board and a battery are provided in the inner shell;

[0010] The circuit board includes a first circuit board, a second circuit board and a third circuit board electrically connected through pins, the first circuit board is provided with a main control chip and a memory chip, the second circuit board is provided with a storage chip and a Bluetooth chip, and the third circuit board is provided with a PD controller and a South Core.

[0011] Preferably, the Bluetooth chip includes a first Bluetooth chip and a second Bluetooth chip.

[0012] Preferably, a switch button and an indicator light are connected to the second circuit board.

[0013] Preferably, a switch button hole is formed through the outer shell and the inner shell.

[0014] Preferably, an indicator light hole is provided through the switch button.

[0015] Preferably, the third circuit board is electrically connected to a charging cable.

[0016] Preferably, a groove is provided on the inner shell.

[0017] Preferably, an opening is formed on the outer shell corresponding to the groove.

[0018] Preferably, a communication module is also provided on the second circuit board.

[0019] Compared with the existing technology, the present invention has the following beneficial effects: it solves the problem of limited internal space of the dot matrix digital pen and the small storage device for storing data, and at the same time reduces the volume of the dot matrix digital pen, making the dot matrix digital pen smaller and more in line with the feel of holding a pen. When connecting, there is no need to use a mobile phone APP, which is more convenient and solves the problem that it can only be viewed on a small mobile phone screen, which is inconvenient for multiple people to watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a structural diagram of the utility model;

[0022] In the figure: outer shell 1, inner shell 2, circuit board 3, battery 4, charging cable 5;

[0023] Switch button hole 11, indicator light hole 12, opening 13;

[0024] groove 21;

[0025] A first circuit board 31, a second circuit board 32, and a third circuit board 33;

[0026] Main control chip 311, memory chip 312;

[0027] Storage chip 321, Bluetooth chip 322, switch button 323, indicator light 324, communication module 325;

[0028] PD controller 331, Southchip 332;

[0029] A first Bluetooth chip 3221 and a second Bluetooth chip 3222 . DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] Example:

[0034] like Figure 1-2As shown, the present invention provides a processing device for a dot matrix digital pen, comprising an outer shell 1 and an inner shell 2, wherein an electrically connected circuit board 3 and a battery 4 are provided in the inner shell 2; a limiting clamping column is provided in the inner shell 2 for clamping the circuit board 3; the outer shell 1 and the inner shell 2 are square frame structures, and one side of the outer shell 1 is blocked; the other side of the outer shell 1 is blocked by a sealing plate 14 (not shown in the figure), so that the outer shell forms a square box body for encapsulating the inner shell 2 in the outer shell 1, and the sealing plate 14 is mounted on the wall of the outer shell 1 by screws.

[0035] The circuit board 3 includes a first circuit board 31, a second circuit board 32, and a third circuit board 33 electrically connected by pins. The independent arrangement of the three circuit boards makes it more miniaturized, thereby achieving the purpose of miniaturizing the overall volume of the product. The first circuit board 31 is provided with a main control chip 311 and a memory chip 312, and the second circuit board 32 is provided with a storage chip 321 and a Bluetooth chip 322. The main control chip 311, the memory chip 312, the storage chip 321, and the Bluetooth chip 322 are all existing products and are not described in detail. The third circuit board 33 is provided with a PD controller 331, which uses an SC2003 chip and a Nanxin 332 using an SC8933 chip. The third circuit board 33 is electrically connected to the battery 4 through a wire. The battery 4 provides power to the main control chip 311 and the memory chip 312, as well as the storage chip 321 and the Bluetooth chip 322 through the electrical circuit on the circuit board 3.

[0036] The SC2003 chip complies with the latest USB Type-C and PD 3.0 standards and supports mainstream high-voltage fast-charging protocols. Its integrated embedded microcontroller and 32KB MTP provide a highly flexible and cost-effective solution for a variety of applications. The SC2003 supports multiple protection mechanisms, including overvoltage protection, undervoltage protection, overcurrent protection, short-circuit protection, overtemperature protection, DP / DM pin overvoltage protection, and CC pin overvoltage protection, effectively ensuring stable and reliable system operation.

[0037] The second circuit board 32 is connected to a switch button 323 and an indicator light 324 via wires.

[0038] A switch button hole 11 is formed through the outer shell 1 and the inner shell 2 for installing the switch button 323 .

[0039] The switch button 323 is provided with an indicator light hole 12 for mounting an indicator light 324 .

[0040] The third circuit board 33 is electrically connected to a charging cable 5 for connecting to an external power supply device to charge the battery 4 .

[0041] The inner shell 2 is provided with a recessed groove 21, and the outer shell 1 is provided with an opening 13 corresponding to the recessed groove 21, for receiving the charging connector portion of the charging cable 5 into the recessed groove 21, so that the charging cable 5 can be used as a handle; the charging connector portion is an existing charging structure and will not be described in detail.

[0042] The Bluetooth chip 322 includes a first Bluetooth chip 3221 and a second Bluetooth chip 3222 . The first Bluetooth chip 3221 is used to connect to the dot matrix pen, and the second Bluetooth chip 3222 is used to connect to an external display device, such as a display screen.

[0043] At the same time, a communication module 325 is also provided on the second circuit board 32. While writing, the communication module 325 transmits the recorded pen tip trajectory coordinates to the background processing, and the background restores the received trajectory coordinate value into an image and stores it in the background. When using it, you only need to connect this product to the display screen and directly call the background display. The technology it implements is existing technology and will not be elaborated on.

[0044] Compared with the existing technology, the present invention has the following beneficial effects: it solves the problem of limited internal space of the dot matrix digital pen and the small storage device for storing data, and at the same time reduces the volume of the dot matrix digital pen, making the dot matrix digital pen smaller and more in line with the feel of holding a pen. When connecting, there is no need to use a mobile phone APP, which is more convenient and solves the problem that it can only be viewed on a small mobile phone screen, which is inconvenient for multiple people to watch.

[0045] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A processing device for a dot matrix digital pen, characterized in that: It comprises an outer shell (1) and an inner shell (2), wherein an electrically connected circuit board (3) and a battery (4) are provided in the inner shell (2); The circuit board (3) comprises a first circuit board (31), a second circuit board (32) and a third circuit board (33) electrically connected via pins; the first circuit board (31) is provided with a main control chip (311) and a memory chip (312); the second circuit board (32) is provided with a storage chip (321) and a Bluetooth chip (322); and the third circuit board (33) is provided with a PD controller (331) and a south core (332).

2. A processing device for a dot matrix digital pen according to claim 1, characterized in that: The Bluetooth chip (322) includes a first Bluetooth chip (3221) and a second Bluetooth chip (3222).

3. The processing device for a dot matrix digital pen according to claim 1, characterized in that: The second circuit board (32) is connected to a switch button (323) and an indicator light (324).

4. A processing device for a dot matrix digital pen according to claim 3, characterized in that: A switch button hole (11) is provided through the outer shell (1) and the inner shell (2).

5. The processing device for a dot matrix digital pen according to claim 3, characterized in that: The switch button (323) is provided with an indicator light hole (12).

6. The processing device for a dot matrix digital pen according to claim 1, characterized in that: The third circuit board (33) is electrically connected to a charging line (5).

7. A processing device for a dot matrix digital pen according to claim 6, characterized in that: A groove (21) is provided inwardly on the inner shell (2).

8. A processing device for a dot matrix digital pen according to claim 7, characterized in that: An opening (13) is provided on the outer shell (1) corresponding to the groove (21).

9. The processing device for a dot matrix digital pen according to claim 1, characterized in that: A communication module (325) is also provided on the second circuit board (32).

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