Handwriting pen and electronic equipment

Abstract

The invention provides a handwriting pen and electronic equipment. The handwriting pen comprises a pen point; the pen cap is detachably connected with the pen point, and a first opening is formed in the pen cap; the camera is positioned in the pen cap and is exposed through the first opening; the first data transmission module is located in the pen cap and electrically connected with the camera, and when the pen cap is arranged on the electronic equipment, the first data transmission module is electrically connected with the electronic equipment; the writing function module is located at the pen point and used for generating a writing signal, and the writing signal can be used for determining the writing position of the handwriting pen through a display screen of the electronic equipment. The handwriting pen provided by the invention not only can realize a writing function, but also can realize a common shooting function, and also can realize a function of writing while shooting.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to a stylus and an electronic device. Background Technology

[0002] Styluses are common accessories for electronic devices such as tablets and mobile phones. Users can use a stylus to input information into the touchscreen of an electronic device, and the device will then perform corresponding operations based on the input. Styluses can provide users with a better user experience, enabling functions such as precise clicking, writing, and drawing.

[0003] However, existing styluses have limited functionality and cannot fully utilize the stylus. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a stylus and an electronic device to solve the problem of the stylus having limited functionality.

[0005] In a first aspect, this application provides a stylus, comprising: a pen tip; a pen cap, detachably connected to the pen tip, and having a first opening on the pen cap; a camera, located inside the pen cap and exposed through the first opening; a first data transmission module, located inside the pen cap and electrically connected to the camera, and electrically connected to the electronic device when the pen cap is placed on an electronic device; and a writing function module, located at the pen tip, for generating a writing signal, the writing signal being used by the display screen of the electronic device to determine the writing position of the stylus.

[0006] The stylus provided in this application is equipped with a camera, eliminating the need for a separate camera in the electronic device and thus improving the screen-to-body ratio. Furthermore, when a user needs to both take photos with the camera and write with the stylus, the cap and tip can be separated. The cap can be magnetically attached to the electronic device for taking photos (since the cap is electrically connected to the electronic device via a first data transmission module, the electronic device can power the camera within the cap through this module, ensuring normal camera operation). Writing can then be done by holding the pen tip, without interrupting camera shooting or requiring the use of other styluses, thus reducing additional costs, expanding the application scenarios of the stylus, meeting diverse user needs, and enhancing the user experience.

[0007] For example, the number of cameras can be one or more. Cameras may include front-facing cameras, rear-facing cameras, and / or other cameras with auxiliary functions (such as telephoto cameras, wide-angle cameras, etc.).

[0008] It should be noted that "exposed" can mean partially or completely exposed. For example, exposing the camera through the first opening can be understood as exposing the part of the camera that can take pictures, while the other part is located inside the pen cap. The meaning of "exposed" is the same in the following content, and will not be repeated here.

[0009] An electrical connection is a connection that enables signal transmission between two electrically connected structures.

[0010] For example, the first data transmission module being electrically connected to the electronic device is equivalent to the first data transmission module being electrically connected to a functional module (such as a processing module, a power management module, etc.) within the electronic device, thereby enabling the module within the stylus to interact with the functional module within the electronic device through the first data transmission module.

[0011] For example, the writing function module may include at least one electrode, in which case the writing signal can be an electrode signal. Of course, the writing position can also be determined in other ways, and this application does not limit this.

[0012] According to the first aspect, the stylus also includes: a power module, a connection module, and a second data transmission module; the camera is electrically connected to the power module and the second data transmission module via the connection module; the power module is used to supply power to the camera and the second data transmission module; the second data transmission module is used to send the information collected by the camera to the electronic device.

[0013] The stylus provided in this application can function as a mobile camera when the pen tip and cap are integrated. This allows users to simply move the stylus to take pictures of objects without moving the bulky electronic device. Furthermore, due to the stylus's small size, it can successfully capture images of objects located in narrow gaps or of parts of devices (where the large size of the electronic device prevents it from entering gaps or being used for filming), thus enhancing the user experience.

[0014] For example, the power module and the second data transmission module can be located at the pen tip, which facilitates the placement of each module due to the large size of the pen tip. Of course, the power module and the second data transmission module can also be located at the pen cap.

[0015] According to the first aspect, or any implementation of the first aspect above, the connection module includes a first connection unit and a second connection unit; the first connection unit is located inside the pen cap and is electrically connected to the camera and the first data transmission module respectively; the second connection unit is located inside the pen cap and is electrically connected to the power module and the second data transmission module respectively.

[0016] For example, the first connection unit includes a USB interface, and the second connection unit includes a USB interface adapted to the USB interface. This configuration allows for both electrical connection between the pen tip and pen cap modules via the first and second connection units, and also ensures a stable connection between the pen cap and pen tip.

[0017] According to the first aspect, or any implementation of the first aspect above, the power module is electrically connected to the first data transmission module through the connection module; when the stylus is placed on the electronic device, the first data transmission module is used to transmit the charging signal sent by the electronic device to the power module through the connection module.

[0018] The first data transmission module enables charging between the electronic device and the stylus, eliminating the need for a separate charging device for the stylus.

[0019] According to the first aspect, or any implementation of the first aspect above, the stylus also includes an indicator module located inside the pen cap and electrically connected to the camera, used to indicate the working status of the camera.

[0020] The indicator module is designed to help users determine the camera's working status, preventing situations where the camera is always working without the user's knowledge.

[0021] For example, the indicating module includes an indicator light.

[0022] According to the first aspect, or any implementation of the first aspect above, the stylus also includes a button located inside the pen cap and electrically connected to the camera, used to control the camera to turn on and off and to take pictures. That is, the button can control the camera to turn on, turn off, and take pictures.

[0023] For example, when the camera is off, pressing the button turns the camera on; when the camera is working, pressing the button allows the camera to take a picture; when the camera has not been working for a preset time, pressing the button turns the camera off.

[0024] With this setup, when the stylus is used independently as a mobile camera, users can directly press the button on the stylus to turn on the camera and control it to take pictures, without having to operate the electronic device (which is far away) to turn on the camera and control it to take pictures, thus improving the user experience.

[0025] According to the first aspect, or any implementation of the first aspect above, the stylus further includes a control module and a touch module, the touch module having a touch surface; a second opening is provided on the pen cap, the touch module is located on the pen cap, and the second opening exposes the touch surface; the control module is located on the pen tip; the touch module is electrically connected to the control module through a connection module; the control module is electrically connected to the camera through the connection module; the touch module is used to receive a first operation command input from the touch surface and send a first touch signal; the control module is used to receive the first touch signal and send a first control signal to the camera, the first control signal being used to instruct the camera to turn on or off.

[0026] This means that the camera can be turned on or off via touch, eliminating the need for a separate button, resulting in a better stylus appearance and a better user experience.

[0027] According to the first aspect, or any implementation of the first aspect above, the touch module is further configured to receive a second operation instruction input from the touch surface and send a second touch signal; the control module is configured to receive the second touch signal and send a second control signal to the electronic device through the second data transmission module, the second control signal being used to instruct the display screen of the electronic device to perform a preset operation.

[0028] This touch module not only has button functions, but also other functions. That is, one touch module can realize multiple functions. In this way, the stylus does not need to be set with multiple functional modules, which simplifies the structure of the stylus, facilitates the setting of other modules of the stylus, and helps to reduce the weight of the stylus.

[0029] According to the first aspect, or any implementation of the first aspect above, the first data transmission module includes a wired transmission module.

[0030] In this way, when the pen cap is placed on an electronic device, the information interaction rate with the electronic device can be improved.

[0031] For example, wired transmission modules include modules such as Pogo-Pin connectors that require transmission via a physical medium.

[0032] According to the first aspect, or any implementation of the first aspect above, the second data transmission module includes a wireless transmission module.

[0033] In this way, the stylus can be used as a mobile camera to take pictures without having to be placed close to the electronic device.

[0034] For example, the second data transmission module may include a Bluetooth module or a Wi-Fi module or other modules capable of wireless transmission.

[0035] According to the first aspect, or any implementation of the first aspect above, the stylus also includes a transparent protective layer, which is fixed to the pen cap and covers the first opening.

[0036] The transparent protective layer protects the stylus from dust, liquids, and other contaminants that could enter through the first opening and affect the performance of the camera and other components.

[0037] According to the first aspect, or any implementation of the first aspect above, an anti-fingerprint film is provided on the transparent protective layer to prevent fingerprints from contaminating the transparent protective layer when the user holds the stylus and affecting the camera's shooting.

[0038] According to the first aspect, or any implementation of the first aspect above, the distance between the transparent protective layer and the end of the pen cap away from the pen tip is greater than or equal to a and less than or equal to b, where a is 20% of the length of the stylus and b is 40% of the length of the stylus.

[0039] In other words, the transparent protective layer is closer to the end of the pen cap that is away from the pen tip, while the transparent protective layer is farther from the pen tip. This reduces the likelihood of the user's fingers coming into contact with the transparent protective layer when holding the pen, thus preventing fingerprints from contaminating it.

[0040] According to the first aspect, or any of the above implementations of the first aspect, the pen cap and pen tip are detachably connected by magnetic attraction, snap-fit, or thread, and the detachable connection method is simple.

[0041] Secondly, embodiments of this application provide an electronic device. The electronic device includes a housing, which includes a frame and a back cover; a display screen, which is opposite to the back cover and fixed to the frame; and a stylus according to the first aspect or any implementation thereof, the stylus being disposed on the frame.

[0042] The second aspect and any implementation thereof correspond to the first aspect and any implementation thereof, respectively. The technical effects of the second aspect and any implementation thereof are similar to those of the first aspect and any implementation thereof, and will not be repeated here.

[0043] According to the second aspect, the frame includes a first frame and a second frame, as well as a third frame and a fourth frame, with the first frame, the third frame, the second frame and the fourth frame connected end to end in sequence; the stylus is placed on the first frame, and the distance from the camera to the third frame and the distance from the fourth frame are equal.

[0044] This setup facilitates camera shooting, such as making it easier for the camera to capture images of the user.

[0045] For example, the electronic device may include a tablet computer; however, the electronic device is not limited to a tablet computer and may also be a smartphone, laptop computer, etc. Attached Figure Description

[0046] Figure 1 An exemplary application scenario diagram is shown;

[0047] Figure 2 This is a schematic diagram of an application scenario provided by an embodiment of this application;

[0048] Figure 3 This is a schematic diagram of the structure of a stylus provided in an embodiment of this application;

[0049] Figure 4 for Figure 3 The diagram shows the structure of the stylus after the pen tip and cap are separated.

[0050] Figure 5 A circuit diagram of a stylus provided in an embodiment of this application;

[0051] Figure 6 A diagram showing the arrangement of a stylus and a tablet computer as provided in an embodiment of this application;

[0052] Figure 7 A schematic diagram illustrating the positional relationship between a stylus and a tablet computer, provided in an embodiment of this application;

[0053] Figure 8 This application scenario provides an example of the stylus provided in this embodiment.

[0054] Figure 9 for Figure 8 The signal transmission diagram corresponding to the application scenario shown;

[0055] Figure 10 This is yet another application scenario for the stylus provided in the embodiments of this application;

[0056] Figure 11 for Figure 10 The signal transmission diagram corresponding to the application scenario shown;

[0057] Figure 12 This is yet another application scenario for the stylus provided in the embodiments of this application;

[0058] Figure 13 for Figure 12 The signal transmission diagram corresponding to the application scenario shown;

[0059] Figure 14 This is a schematic diagram of the structure of another stylus provided in an embodiment of this application;

[0060] Figure 15 A circuit diagram of another stylus provided in an embodiment of this application. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0063] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0064] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0065] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0066] In the description of the embodiments of this application, "connection" is used to indicate that two or more components have direct physical contact with each other; "electrical connection" is used to indicate that two or more components can communicate with each other (i.e., can transmit and interact with signals).

[0067] See Figure 1 , Figure 1An exemplary application scenario diagram is shown, in which a tablet computer 100 is used as an example for explanation. The tablet computer 100 includes a casing 110 and a display screen 120, wherein the display screen 120 can be a touch screen. The display screen 120 includes a display area AA and a non-display area (also called a black border area) NAA surrounding the display area AA. The non-display area NAA includes a light-transmitting area, and a camera 130 is provided inside the tablet computer 100 corresponding to the light-transmitting area. The camera 130 can perform shooting functions through the light-transmitting area.

[0068] Please continue reading Figure 1 To facilitate the use of the tablet computer 100, the tablet computer 100 is equipped with a keyboard 200 and a stylus 300. The keyboard 200 may include a support unit 210 and a keyboard body 220, with the keyboard body 220 connected to the support unit 210. The support unit 210 is provided with a connection module (such as a pogo pin connector) electrically connected to the tablet computer 100. The keyboard body 220 is provided with buttons 221 and a touchpad (not shown in the figure). When using the tablet computer 100, the connection module (such as the pogo pin connector) of the tablet computer 100 can be electrically connected to the connection module on the support unit 210, realizing the electrical connection between the keyboard 200 and the tablet computer 100. Simultaneously, the support unit 210 provides support for the tablet computer 100. Users can provide input to the tablet computer 100 by pressing the buttons 221 or the touchpad. Furthermore, users can also hold the stylus 300 and move it on the display screen 120 to provide input to the tablet computer 100. When the user does not need to use the stylus 300, the stylus 300 can be magnetically attached to the casing 110 of the tablet computer 100.

[0069] Depend on Figure 1 As can be seen from the scenario shown, a traditional tablet computer 100 would place the camera 130 in the non-display area NAA of the display screen 120, and the stylus 300 would be attached to the frame of the outer shell 110 of the tablet computer 100.

[0070] With the rapid development of display technology, electronic devices with high screen-to-body ratios (such as the ratio of the area of ​​the display area AA to the front area of ​​the electronic device) are increasingly favored by users. To achieve a high screen-to-body ratio, it is necessary to reduce the area of ​​the non-display area NAA of the display screen (correspondingly, the area of ​​the display area AA can be increased).

[0071] However, the camera 130 is located in the non-display area (NAA) of the display screen 120. As the pixel count of the camera 130 gradually increases, its size needs to increase accordingly. Consequently, the area of ​​the non-display area (NAA) of the display screen 120 needs to increase. This conflicts with the goal of reducing the area of ​​the non-display area (NAA) of the display screen 120 and increasing the screen-to-body ratio of the electronic device. Furthermore, when the stylus 300 is not in use, it is magnetically attached to the casing 110 of the tablet computer 100; that is, the stylus 300 is idle and cannot be fully utilized.

[0072] To fully utilize the stylus and increase the screen-to-body ratio of electronic devices. See also Figure 2 , Figure 2 This is a schematic diagram of an application scenario provided in an embodiment of this application. Figure 1 In the different scenario shown, the camera 130 is located inside the stylus 300. In this way, when the stylus 300 is attached to the outer shell of the tablet computer 100, the camera 130 located inside can take pictures. This makes full use of the stylus 300 and eliminates the need to set up the camera 130 inside the tablet computer 100. Correspondingly, the display screen 120 of the tablet computer 100 does not need to reserve a black border for setting up the camera 130, which helps to improve the screen ratio of the electronic device.

[0073] Further research revealed that Figure 2 In the scenario shown, if the user wants to provide input to the tablet computer 100 via the stylus 300 while the camera 130 is in use, the use of the camera 130 will be interrupted, affecting the user's shooting and negatively impacting the user experience; or, if the camera 130 continues to shoot, the user will need to use another stylus to provide input to the tablet computer 100, which will increase costs.

[0074] Based on this, this application also provides a stylus that can meet the needs of users who need to both take pictures with a camera and write with a stylus; and the stylus can also be used as a mobile camera, so that when taking pictures of some objects, there is no need to move the large electronic device, and it can also take pictures of some objects located in small gaps or some partial parts of some devices (because the electronic device is too large to enter the gaps or inside the device to take pictures), further improving the user experience.

[0075] The stylus in this embodiment can be applied to electronic devices, such as smartphones, tablets, laptops, in-vehicle computers, personal digital assistants (PDAs), smart wearable devices, or smart home devices. This embodiment does not limit the form of the electronic device.

[0076] The specific structure of the stylus provided in the embodiments of this application will be described below with reference to an electronic device. A tablet computer will be used as an example in the description.

[0077] See Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the structure of a stylus provided in an embodiment of this application. Figure 4 for Figure 3 The diagram shows the structure of the stylus after the pen tip and cap are separated. The stylus 300 includes a pen tip 310 and a pen cap 320. The pen tip 310 includes a writing end 311 and a connecting end 312. Along the extending direction of the stylus 300, the writing end 311 is located on the side of the connecting end 312 away from the pen cap 320. The pen tip 310 is detachably connected to the pen cap 320 through the connecting end 312.

[0078] For example, the connecting end 312 is provided with an internal thread, and one end of the pen cap 320 is provided with an external thread that mates with the internal thread on the connecting end 312. The internal thread of the connecting end 312 is threadedly connected to the external thread at one end of the pen cap 320, so that the pen tip 310 and the pen cap 320 can be detachably connected.

[0079] Of course, the detachable connection between the pen tip 310 and the pen cap 320 is not limited to threaded connection. For example, the detachable connection between the pen tip 310 and the pen cap 320 can also be achieved by magnetic attraction, snap-fit, etc.

[0080] The pen tip 310 includes a first outer shell 313, and the pen cap 320 includes a second outer shell 321. Both the first outer shell 313 and the second outer shell 321 are annular structures.

[0081] Combination Figure 5 , Figure 5 The circuit diagram of a stylus provided in this application embodiment is shown. The stylus 300 also includes a camera 130, an image processing module 330, a first data transmission module 331, a power module 332, a charging module 333, a control module 334, a second data transmission module 335, and a writing function module 336.

[0082] It should be understood that, Figure 5 The stylus 300 shown is just one example of a stylus, and the stylus 300 may have more or fewer modules than shown in the figure, may combine two or more modules, or may have different component modules.

[0083] The camera 130, image processing module 330, and first data transmission module 331 are located in the pen cap 320 and within the area surrounded by the second housing 321. The image processing module 330 is electrically connected to both the camera 130 and the first data transmission module 331, and the camera 130 is also electrically connected to the first data transmission module 331.

[0084] A first opening 3211 is provided on the second outer shell 321, through which the camera 130 can be exposed and the camera 130 can perform the shooting function through the first opening 3211.

[0085] To protect the stylus 300 and prevent dust, liquids, etc., from entering the stylus 300 through the first opening 3211 and affecting the performance of the camera 130, the stylus 300 also includes a transparent protective layer 338. This transparent protective layer 338 is fixed to the second housing 321 and covers the first opening 3211. The camera 130 can perform its shooting function through the transparent protective layer 338. For example, the transparent protective layer 338 may include a film structure such as a glass cover that does not affect the shooting of the camera 130 while protecting the stylus 300.

[0086] To prevent fingerprints from contaminating the transparent protective layer 338 and affecting the camera 130's shooting when the user holds the stylus 300, in some embodiments, an anti-fingerprint film (not shown) can be provided on the transparent protective layer 338; and / or, the distance W1 between the first opening 3211 and the end of the pen cap 320 away from the connecting end 312 (along the extension direction of the stylus 300) can be greater than or equal to a and less than or equal to b, where a is 20% of the stylus length and b is 40% of the stylus length. For example, W1 can be 20%, 25%, 30%, 35%, or 40% of the length of the stylus, and W1 can be 30mm, 28mm, 26mm, 24mm, 22mm, or 20mm, etc. That is, the distance W1 between the transparent protective layer 338 and the end of the pen cap 320 away from the connecting end 312 (along the extension direction of the stylus 300) is 30mm, 28mm, 26mm, 24mm, 22mm, or 20mm, etc. In other words, the distance between the transparent protective layer 338 and the end of the pen cap 320 away from the connecting end 312 is relatively close, and correspondingly, the distance between the transparent protective layer 338 and the writing end 311 is relatively far. In this way, when the user holds the stylus 300, the possibility of the fingers coming into contact with the transparent protective layer 338 is small, which can prevent fingerprints from contaminating the transparent protective layer 338.

[0087] The power module 332, charging module 333, control module 334, second data transmission module 335, and writing function module 336 are located on the pen tip 310 and within the area surrounded by the first housing 313. The control module 334 is electrically connected to the power module 332, charging module 333, second data transmission module 335, and writing function module 336, respectively, and the power module 332 is also electrically connected to the second data transmission module 335 and charging module 333, respectively.

[0088] The stylus 300 also includes a connection module for electrically connecting the module in the pen tip 310 and the module in the pen cap 320.

[0089] For example, please continue to see Figure 5 The connection module includes a first connection unit 3371 and a second connection unit 3372. The first connection unit 3371 is located in the pen cap 320 and is electrically connected to the camera 130, the image processing module 330, and the first data transmission module 331, respectively. The second connection unit 3372 is located in the pen tip 310 and is electrically connected to the power module 332, the charging module 333, and the control module 334, respectively. When the pen tip 310 and the pen cap 320 are connected, the first connection unit 3371 and the second connection unit 3372 are electrically connected to electrically connect the modules in the pen tip 310 and the modules in the pen cap 320.

[0090] The first connection unit 3371 and the second connection unit 3372 may include a power supply terminal and a data transmission terminal, wherein the power supply terminal is used to transmit power supply or charging signals, and the data transmission terminal is used to transmit data signals (such as control signals, image or video signals, etc.). For example, the first connection unit 3371 and the second connection unit 3372 may include a universal interface, which may include a USB interface, such as a USB Type-A interface, a USB Type-B interface, a USB Type-C interface, a USB Mini interface, or a USB Micro interface.

[0091] Camera 130 is used to capture still images or videos.

[0092] The image processing module 330 is used to process the still images or videos captured by the camera 130, such as optimizing the noise, brightness and skin tone of the image; it can also optimize parameters such as exposure and color temperature of the shooting scene.

[0093] For example, the image processing module 330 may include an image signal processor (ISP), etc. In some embodiments, the image processing module 330 may be disposed in the camera 130.

[0094] The first data transmission module 331 may include a wired transmission module. When the cap 320 of the stylus 300 is disposed on the edge of the casing 110 of the tablet computer 100, the first data transmission module 331 is used to transmit the signal processed by the image processing module 330 to the tablet computer 100, and is also used to transmit the charging signal sent by the tablet computer 100 to the first connection unit 3371, so as to charge the power module 332 through the power terminal of the first connection unit 3371, the power terminal of the second connection unit 3372, etc.

[0095] For example, the first data transmission module 331 may include a Pogo-Pin connector, and correspondingly, the tablet computer 100 is also equipped with a Pogo-Pin connector adapted to the stylus 300. For instance, the Pogo-Pin connector in the tablet computer 100 is a female Pogo-Pin connector, and the Pogo-Pin connector in the stylus 300 is a male Pogo-Pin connector. Both the female and male Pogo-Pin connectors include multiple contacts, which may include power contacts, data transmission contacts, and ground contacts. When the contacts of the male Pogo-Pin connector make contact with the contacts of the female Pogo-Pin connector, the female and male Pogo-Pin connectors are electrically connected, that is, the stylus 300 and the tablet computer 100 are electrically connected. The signal processed by the image processing module 330 is transmitted to the tablet computer 100 through the data transmission contacts of the Pogo-Pin male connector and the Pogo-Pin female connector. The charging signal sent by the tablet computer 100 is transmitted to the first connection unit 3371 through the power contacts of the Pogo-Pin male connector and the Pogo-Pin female connector, so as to charge the power module 332 through the power terminals of the first connection unit 3371 and the second connection unit 3372.

[0096] In this case, to ensure a stable electrical connection between the first data transmission module 331 and the tablet computer 100, and to prevent the pen cap 320 from shaking and affecting the electrical connection between the first data transmission module 331 and the tablet computer 100, in some embodiments, the pen cap 320 is further provided with a fixing part (not shown in the figure) for fixing the pen cap 320 to the tablet computer 100. The fixing part may include a first adsorption element, such as a magnet; correspondingly, the tablet computer 100 is provided with a second adsorption element that cooperates with the magnet. The first adsorption element and the second adsorption element can be adsorbed together to achieve a stable connection between the pen cap 320 and the tablet computer 100.

[0097] See Figure 6 , Figure 6This application provides a diagram showing the placement relationship between a stylus and a tablet computer in an embodiment. When the stylus cap 320 is placed on the outer casing 110 of the tablet computer 100, the camera 130 can be located in the center of the tablet computer 100. Specifically, the outer casing 110 includes a frame and a back cover. The back cover and the display screen 120 are opposite each other. The frame has an annular structure, such as a rectangular ring. The frame, back cover, and display screen 120 can form a cavity for accommodating functional devices, such as a processor and a battery. The border may include a top border (also called the first border) 111 and a bottom border (also called the second border) 112, as well as a left border (also called the third border) 113 and a right border (also called the fourth border) 114. The lengths of the top border 111 and the bottom border 112 are greater than the lengths of the left border 113 and the right border 114. The top border 111, the left border 113, the bottom border 112 and the right border 114 are connected end to end to form a ring-shaped border. The top border, bottom border, left border and right border of the tablet computer 100 are the positions of the tablet computer 100 border relative to the user when the user looks directly at the tablet computer 100. The stylus 300 can be placed on the upper edge 111 of the tablet computer 100. When the stylus 300 is placed on the upper edge 111 of the tablet computer 100, the camera 130 can be located in the middle of the tablet computer 100. That is, the distance W2 from the camera 130 to the left edge of the tablet computer 100 and the distance W3 from the camera 130 to the right edge of the tablet computer 100 are equal. This setting facilitates the camera 130 in taking pictures, such as facilitating the camera 130 in capturing images of the user.

[0098] It is understandable that the above equality can be within a certain error range. For example, when W2 is 10cm and W3 is 10.1cm, it is also considered that the distance to the left edge of the tablet computer 100 and the distance to the right edge of the tablet computer 100 are equal.

[0099] When the pen tip 310 and pen cap 320 are integrated and the stylus 300 is not located on the frame of the outer shell 110 of the tablet computer 100, or when the pen tip 310 and pen cap 320 are separated and the pen tip 310 works alone, the power module 332 is used to supply power to each module (the module that needs power to work) to ensure the normal operation of each module.

[0100] For example, the power module 332 may include a structure such as a battery that can store energy.

[0101] The control module 334 is used to control each module. For example, when the tablet computer 100 charges the power module 332 of the stylus 300, the tablet computer 100 can interact with the control module 334 in the stylus 300 to complete the protocol handshake and determine the charging voltage and charging current required by the power module 332. Based on the charging voltage and charging current required by the power module 332, the control module 334 sends a voltage conversion signal to the charging module 333.

[0102] For example, the control module 334 may include a module with control functions, such as a microcontroller unit (MCU) or a central processing unit (CPU).

[0103] The charging module 333 is used to convert the charging signal provided by the tablet computer 100 into the charging voltage and charging current required by the power module 332 according to the control of the control module 334.

[0104] The second data transmission module 335 can be a wireless transmission module. When the pen tip 310 and pen cap 320 are integrated, and the stylus 300 is not located on the frame of the outer shell 110 of the tablet computer 100, the second data transmission module 335 is used to transmit the signal processed by the image processing module 330 to the tablet computer 100. This can be achieved by the signal processed by the image processing module 330 passing sequentially through the first connection unit 3371 and the second connection unit 3372 before being transmitted to the second data transmission module 335; or by the signal processed by the image processing module 330 passing sequentially through the data transmission terminals of the first connection unit 3371 and the second connection unit 3372 before being transmitted to the second data transmission module 335 via the control module 334.

[0105] For example, the second data transmission module 335 may include a Bluetooth module or a Wi-Fi module or other modules capable of wireless transmission.

[0106] The writing function module 336 is used to identify the position of the writing strokes and can also identify the tilt angle of the stylus 300.

[0107] For example, see Figure 7 , Figure 7This application provides a schematic diagram illustrating the positional relationship between a stylus and a tablet computer. The writing function module 336 may include a first electrode 3361 and a second electrode 3362. The first electrode 3361 may be located at the writing end 311 of the pen tip 310, and the second electrode 3362 is located on the pen tip 310 and has a preset distance from the first electrode 3361. This preset distance can be determined according to actual conditions, and is not limited in this application embodiment. When the stylus 300 is held and swiped on the display screen 120 of the tablet computer 100, a first capacitor C1 is formed between the first electrode 3361 and the display screen 120, and a second capacitor C2 is formed between the second electrode 3362 and the display screen 120. The tablet computer 100 identifies the position of the writing strokes and the tilt angle of the stylus 300 by the changes in the first capacitor C1 and the second capacitor C2.

[0108] It should be noted that the above is only an example of the specific structure of each module, and this example does not constitute a limitation on the specific structure of each module. Any structure that can realize the function of each module is within the protection scope of this application.

[0109] The structure of the stylus 300 provided in this application embodiment, as well as the connection relationships and functions of the various modules within the stylus 300, have been described above. The following describes three application scenarios of the stylus 300 provided in this application embodiment. The working processes of the following application scenarios are merely examples and do not constitute a limitation of this application.

[0110] Scene 1: Typical Shooting Scene

[0111] A typical shooting scenario is one where the stylus 300 is mounted on the casing 110 of the tablet computer 100, and the image is taken using the camera 130 within the stylus 300. See [link / reference] Figure 8 and Figure 9 , Figure 8 This is one application scenario of the stylus provided in the embodiments of this application. Figure 9 for Figure 8The signal transmission diagram corresponding to the application scenario shown illustrates that when the stylus 300 is mounted on the casing 110 of the tablet computer 100, the tablet computer 100 can charge the stylus 300 mounted on its casing 110. Specifically, the stylus 300 is electrically connected to the tablet computer 100 through the first data transmission module 331. The tablet computer 100 interacts with the control module 334 of the stylus 300 through the first data transmission module 331, the first connection unit 3371, and the second connection unit 3372, completing a protocol handshake and determining the required charging voltage and current for the power module 332. Based on the required charging voltage and current for the power module 332, the control module 334 sends a voltage conversion signal to the charging module 333. The charging signal sent by the tablet computer 100 is transmitted to the charging module 333 through the data transmission terminals of the first data transmission module 331, the first connection unit 3371, and the second connection unit 3372. The charging module 333 converts the charging signal based on the voltage conversion signal to the required charging voltage and current for the power module 332, thereby charging the power module 332. The transmission path of the charging signal is as follows: Figure 9 As indicated by the solid arrow in the middle.

[0112] Meanwhile, the tablet computer 100 can transmit the activation signal for the camera 130 (e.g., when a user double-clicks the icon of a chat application to initiate a video call, the tablet computer 100 receives the user's action and sends an activation signal in response) to the camera 130 via the first data transmission module 331. The transmission path of the activation signal is as follows: Figure 9 The dashed arrow at the midpoint indicates that the camera 130 is activated and sends the captured image to the image processing module 330 in real time. The image processing module 330 processes the image or video and then transmits it to the tablet computer 100 via the first data transmission module 331. The tablet computer 100 can display the image on the screen 120. The transmission path of the image or video is as follows: Figure 9 The midpoint is indicated by the dashed arrow.

[0113] Scene 2: Coexistence of Photography and Writing

[0114] The scenario where shooting and writing coexist is characterized by the stylus 300's cap 320 being mounted on the outer casing 110 of the tablet computer 100, taking a picture via the camera 130 inside the cap 320, and the stylus 300's tip 310 writing on the tablet computer 100's display screen 120. See also... Figure 10 and Figure 11 , Figure 10 This is yet another application scenario for the stylus provided in the embodiments of this application. Figure 11 for Figure 10The signal transmission diagram corresponding to the application scenario shown illustrates that when the pen cap 320 of the stylus 300 is placed on the casing 110 of the tablet computer 100, the tablet computer 100 can supply power to the modules inside the pen cap 320. Specifically, the tablet computer 100 supplies power to the image processing module 330 and camera 130 inside the pen cap 320 through the first data transmission module 331, ensuring that the image processing module 330 and camera 130 can function normally. Furthermore, the power module 332 inside the pen tip 310 supplies power to the charging module 333, control module 334, and second data transmission module 335 located inside the pen tip 310, to ensure the normal operation of the writing function. The power supply path is as follows: Figure 11 As indicated by the solid arrow in the middle. That is to say, even if the pen cap 320 is separated from the pen tip 310, the module inside the pen cap 320 can still work normally (because the tablet computer 100 supplies power to the module located inside the pen cap 320), and the module inside the pen tip 310 can also work normally (because the power module inside the pen tip 310 supplies power to the other modules inside the pen tip 310).

[0115] Meanwhile, the tablet computer 100 can transmit the activation signal for the camera 130 (e.g., when a user double-clicks the icon of a chat application to initiate a video call, the tablet computer 100 receives the user's action and sends an activation signal in response) to the camera 130 via the first data transmission module 331. The transmission path of the activation signal is as follows: Figure 11 The dashed arrow at the midpoint indicates that the camera 130 is activated and sends the captured image to the image processing module 330 in real time. The image processing module 330 processes the image or video and then transmits it to the tablet computer 100 via the first data transmission module 331. The tablet computer 100 can display the image on the screen 120. The transmission path of the image or video is as follows: Figure 11 The midpoint is indicated by the dashed arrow.

[0116] Furthermore, when the user holds the pen tip 310 and slides it on the display screen 120 of the tablet computer 100, the first electrode of the writing function module 336 and the display screen 120 form a first capacitor, and the second electrode of the writing function module 336 and the display screen 120 form a second capacitor. The first electrode can generate a first electrode signal, and the second electrode can generate a second electrode signal. The tablet computer 100 determines the position of the pen tip 310 on the display screen 120 (i.e., the writing position) and the tilt angle between the pen tip 310 and the display screen 120 based on the first electrode signal and the second electrode signal. That is, a single stylus 300 can complete the function of writing while taking pictures.

[0117] Scene 3: Remote Shooting Scene

[0118] The remote shooting scenario refers to a situation where the stylus 300's tip 310 and cap 320 are connected, and the stylus 300 is used as a mobile camera (at this time, the stylus 300 is not mounted on the tablet computer's casing 110). See also Figure 12 and Figure 13 , Figure 12 This is yet another application scenario for the stylus provided in the embodiments of this application. Figure 13 for Figure 12 The signal transmission diagram corresponding to the application scenario shown illustrates that when the stylus 300 is not mounted on the casing 110 of the tablet computer 100, the power module 332 within the pen tip 310 can simultaneously power both the modules within the pen tip 310 and the modules within the pen cap 320. Specifically, since the charging module 333, control module 334, and second data transmission module 335 are electrically connected to the power module 332, the power module 332 can directly power the charging module 333, control module 334, and second data transmission module 335 within the pen tip 310, ensuring their normal operation. Simultaneously, the power module 332 can power the image processing module 330 and camera 130 within the pen cap 320 through the power terminals of the second connection unit 3372 and the first connection unit 3371, ensuring their normal operation.

[0119] Meanwhile, the tablet computer 100 can wirelessly connect to the stylus 300 via the second data transmission module 335 within the stylus 300, thereby enabling the transmission of images or videos. Specifically, the tablet computer 100 can transmit the activation signal for the camera 130 to the control module 334 via the second data transmission module 335. The control module 334 then sends the activation signal to the camera 130 via the data transmission terminals of the second connection unit 3372 and the first connection unit 3371. The transmission path of the activation signal is as follows: Figure 13 As shown by the dashed arrow at the midpoint. The camera 130 is activated and sends the captured images or videos to the image processing module 330. The image processing module 330 processes the images or videos and then transmits them to the control module 334 via the data transmission terminals of the first connection unit 3371 and the second connection unit 3372. The control module 334 controls the second data transmission module 335 to send the processed images or videos from the image processing module 330 to the tablet computer 100. The tablet computer 100 can display the images on the screen 120. The transmission path of the images or videos is as follows: Figure 13 The midpoint is indicated by the dashed arrow.

[0120] It should be noted that the above scenarios are illustrated using the example of the camera being turned on upon receiving an activation signal from the tablet computer 100. However, this does not constitute a limitation of this application. For other optional embodiments of this application, please refer to [link / reference]. Figure 3 and Figure 4 The pen cap 320 also contains a button 339 for activating the camera 130, which is electrically connected to the camera 130. When the user presses the button 339, the button 339 generates an activation signal based on the user's pressure and sends it to the camera 130 to activate the camera 130. Thus, when the stylus 300 works independently as a mobile camera, the user can directly press the button 339 on the stylus 300 to activate the camera 130. For example, in the aforementioned remote shooting scenario (Scenario 3), when the user uses the stylus 300 to photograph an object far from the tablet 100, they can directly control the activation of the camera 130. This means the user does not need to operate the tablet 100, which is far away, to activate the camera 130, improving the user experience.

[0121] In addition, button 339 can also control the camera to take pictures, so that users can take pictures without operating the tablet computer 100 which is far away, further improving the user experience. For example, when button 339 activates the camera 130, when the user presses button 339 again, button 339 generates a shooting signal based on the user's pressing pressure and sends it to the camera 130, so that the camera 130 can complete the capture of an image.

[0122] Of course, the button 339 can also control the camera 130 to turn off. That is, when the camera 130 has been in working state for a preset time or although it is turned on, it has not been working within a preset time, when the user presses the button 339 again, the button 339 generates a turn-off signal based on the user's pressing pressure and sends it to the camera 130 to turn off the camera 130.

[0123] As described above, the stylus 300 provided in this application includes a cap 320 and a pen tip 310, which are detachably connected. The cap 320 houses a camera 130, and the pen tip 310 contains a writing module. Thus, when a user needs to both take photos with the camera and write with the stylus, the cap 320 can be magnetically attached to the tablet computer 100 for taking photos, while the pen tip 310 is held in hand for writing. This eliminates the need to interrupt the camera 130's shooting or use other styluses, reducing costs and improving the user experience. Furthermore, when the pen tip 310 and cap 320 are integrated, the stylus 300 can function as a mobile camera. Therefore, when photographing objects, simply moving the stylus 300 is sufficient. The stylus 300 provided in this application embodiment not only enables ordinary shooting functions but also allows for simultaneous shooting and writing. Furthermore, the stylus 300 can be moved as a portable shooting device. Thus, when shooting objects, only the stylus needs to be moved to capture the image, eliminating the need to move larger electronic devices. Due to its small size, the stylus can also easily capture images of objects located in small gaps or of partial components of devices, further enhancing the user experience. In short, the stylus 300 provided in this application embodiment has multiple application scenarios, meeting various user needs and improving the user experience.

[0124] In some embodiments, see Figure 14 and Figure 15 , Figure 14 This is a schematic diagram of the structure of another stylus provided in an embodiment of this application. Figure 15This application provides a circuit diagram for another stylus provided in an embodiment of the present application. The stylus 300 further includes a touch module 340, located within the surrounding area of ​​the second housing 321 and electrically connected to the first connection unit 3371. Thus, when the first connection unit 3371 and the second connection unit 3372 are electrically connected, the touch module 340 can interact with the control module 334 via the data transmission terminals of the first and second connection units 3371 and 3372. Specifically, the touch module 340 can be a touch chip. The touch module 340 has a touch surface 3400, and the second housing 321 has a second opening that exposes the touch surface 3400. Users can operate the touch surface 3400 with their fingers to input operation commands to the touch module 340. When the user performs different operations on the touch surface 3400, the touch module 340 can generate different touch signals, which can then be sent to the control module 334. After receiving a touch signal, the control module 334 generates a control signal and sends it to the display screen 120 of the tablet computer 100 via the second data transmission module 335. Upon receiving the control signal, the display screen 120 can perform the corresponding operation.

[0125] For example, when a user creates writing marks on the drawing board interface of the display screen 120, the width of the writing marks can change when the user clicks on the touch surface 3400. The color of the writing marks can change when the user double-clicks on the touch surface 3400. The transparency of the writing marks can change when the user slides on the touch surface 3400. When the user long-presses on the touch surface 3400 (i.e., the touch duration exceeds a preset time, which can be greater than 2 seconds or 3 seconds, etc.), the camera 130 can be turned on. Specifically, the touch module 340 can send the touch signal generated when the user long-presses the touch surface 3400 to the control module 334. After receiving the touch signal, the control module 334 can generate a control signal corresponding to the touch signal and transmit the control signal to the camera 130 through the data transmission terminal of the second connection unit 3372 and the data transmission terminal of the first connection unit 3371 to control the camera 130 to turn on. When the camera 130 is activated, when the user taps the touch surface 3400 again, the touch signal generated by the touch module 340 is sent to the control module 334. Upon receiving the touch signal, the control module 334 generates a corresponding control signal and transmits it to the camera 130 via the data transmission terminals of the second connection unit 3372 and the first connection unit 3371, enabling the camera 130 to capture an image. When the camera 130 is activated, the user can deactivate it by long-pressing the touch surface 3400 (i.e., pressing for more than a preset time, such as 2 or 3 seconds). Specifically, the touch module 340 can send the touch signal generated when the user long-presses the touch surface 3400 to the control module 334. After receiving the touch signal, the control module 334 generates a corresponding control signal and transmits it to the camera 130 via the data transmission terminals of the second connection unit 3372 and the first connection unit 3371 to control the camera 130 to turn off. This design eliminates the need for a separate button 339, simplifying the structure of the stylus 300 and facilitating the setup of other modules.

[0126] In some embodiments, please continue to see Figure 14 and Figure 15The stylus 300 also includes an indicator module 341, located within the surrounding area of ​​the second housing 321 and electrically connected to the camera 130. The second housing 321 has a third opening that exposes at least a portion of the indicator module 341. The indicator module 341 indicates the working status of the camera 130, allowing the user to easily observe its operation and preventing the camera 130 from being continuously active (i.e., constantly consuming power) without the user's knowledge, thus improving the user experience. Specifically, the indicator module 341 can be an indicator light. For example, when the indicator light is on, it indicates that the camera 130 is active; when the indicator light is off, it indicates that the camera 130 is not active.

[0127] Any content in the various embodiments of this application, as well as any content in the same embodiment, can be freely combined. Any combination of the above content is within the scope of this application.

[0128] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A stylus, characterized in that, include: written; A pen cap, which is detachably connected to the pen tip, and the pen cap has a first opening; A camera, which is located inside the pen cap and exposed through the first opening; A first data transmission module is located on the pen cap and electrically connected to the camera. When the pen cap is placed on the electronic device, the first data transmission module is electrically connected to the electronic device. A writing function module, located at the pen tip, is used to generate a writing signal, which can be used by the display screen of the electronic device to determine the writing position of the stylus.

2. The stylus according to claim 1, characterized in that, The stylus also includes a power module, a connection module, and a second data transmission module; the camera is electrically connected to the power module and the second data transmission module respectively through the connection module. The power module is used to supply power to the camera and the second data transmission module; The second data transmission module is used to send the information collected by the camera to the electronic device.

3. The stylus according to claim 2, characterized in that, The connection module includes a first connection unit and a second connection unit; the first connection unit is located inside the pen cap and is electrically connected to the camera and the first data transmission module respectively; the second connection unit is located inside the pen tip and is electrically connected to the power module and the second data transmission module respectively.

4. The stylus according to claim 2, characterized in that, The power module is electrically connected to the first data transmission module through the connection module; when the stylus is placed on the electronic device, the first data transmission module is used to transmit the charging signal sent by the electronic device to the power module through the connection module.

5. The stylus according to any one of claims 1-4, characterized in that, The stylus also includes an indicator module located inside the pen cap and electrically connected to the camera, used to indicate the working status of the camera.

6. The stylus according to any one of claims 1-5, characterized in that, The stylus also includes a button located inside the pen cap and electrically connected to the camera, used to control the camera's on / off state and to control the camera to take pictures.

7. The stylus according to any one of claims 2-4, characterized in that, The stylus also includes a control module and a touch module, the touch module having a touch surface; a second opening is provided on the pen cap, the touch module is located on the pen cap, and the second opening exposes the touch surface; the control module is located on the pen tip; the touch module is electrically connected to the control module through the connection module; the control module is electrically connected to the camera through the connection module; The touch module is used to receive a first operation command input from the touch surface and send a first touch signal; The control module is used to receive the first touch signal and send a first control signal to the camera, the first control signal being used to instruct the camera to turn on / off and take a picture.

8. The stylus according to claim 7, characterized in that, The touch module is also used to receive a second operation command input from the touch surface and send a second touch signal; The control module is used to receive the second touch signal and send a second control signal to the electronic device through the second data transmission module. The second control signal is used to instruct the display screen of the electronic device to perform a preset operation.

9. The stylus according to any one of claims 1-8, characterized in that, The first data transmission module includes a wired transmission module.

10. The stylus according to any one of claims 2-4 and 7-8, characterized in that, The second data transmission module includes a wireless transmission module.

11. The stylus according to any one of claims 1-10, characterized in that, The stylus also includes a transparent protective layer, which is fixed to the pen cap and covers the first opening.

12. The stylus according to claim 11, characterized in that, The transparent protective layer is provided with an anti-fingerprint film.

13. The stylus according to claim 11 or 12, characterized in that, The distance between the transparent protective layer and the end of the pen cap opposite the pen tip is greater than or equal to a and less than or equal to b, where a is 20% of the length of the stylus and b is 40% of the length of the stylus.

14. The stylus according to any one of claims 1-13, characterized in that, The pen cap and the pen tip are detachably connected by magnetic attraction, snap-fit, or thread.

15. An electronic device, characterized in that, include: The housing includes a frame and a back cover; A display screen, which is opposite to the back cover and fixed to the frame; The stylus according to any one of claims 1-14, wherein the stylus is disposed on the frame.

16. The electronic device according to claim 15, characterized in that, The border includes a first border and a second border that are opposite each other, and also includes a third border and a fourth border that are opposite each other, with the first border, the third border, the second border and the fourth border connected end to end in sequence; The stylus is positioned on the first frame, and the distance from the camera to the third frame is equal to the distance from the fourth frame.

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