Mouse and interactive system

Abstract

The present application relates to the technical field of integrated circuits, and further relates to a mouse and an interactive system. The mouse comprises: a finger vein recognition circuit or a fingerprint recognition circuit, which is configured to generate finger vein verification information or fingerprint verification information; a key circuit, which is connected to the finger vein recognition circuit or the fingerprint recognition circuit, and is configured to extract key information; a mouse module circuit, which is configured to implement button operations and navigation operations of the mouse; and a control circuit, which is separately connected to the mouse module circuit and the key circuit, and is used for enabling the mouse module circuit and the key circuit to be independently recognized. Integrating a key circuit and a mouse module circuit into a mouse enables simultaneous connection of the mouse and a USB key to a host computer when the host computer has only one interface available.

Description

A mouse and interaction system Technical Field

[0001] This application relates to the field of integrated circuit technology, and more particularly to a mouse and interaction system. Background Technology

[0002] In current host computer hardware configurations, the limited number of interfaces often causes inconvenience for users when connecting devices. This problem is particularly pronounced when users need to use both a mouse and a USB key simultaneously. With only one interface available, users are forced to choose between the mouse and the USB key, significantly impacting the user experience.

[0003] Utility Model Content

[0004] To address the aforementioned technical issues, this application provides a mouse and an interaction system that integrates a key circuit and a mouse module circuit into the mouse, enabling the host computer to simultaneously connect the mouse and a USB key when there is only one interface.

[0005] In a first aspect, this application provides a mouse, comprising: a finger vein recognition circuit or a fingerprint recognition circuit, configured to generate finger vein verification information or fingerprint verification information; a key circuit, connected to the finger vein recognition circuit or the fingerprint recognition circuit, configured to extract key information; a mouse module circuit, configured to implement button operation and navigation operation of the mouse; and a control circuit, connected to the mouse module circuit and the key circuit respectively, for enabling the mouse module circuit and the key circuit to be independently identified.

[0006] This mouse integrates the key circuit and mouse module circuitry, allowing the host computer to connect both the mouse and the USB key simultaneously when only one interface is available. Furthermore, users can choose between vein recognition or fingerprint recognition to obtain key information. Regardless of the method used, the mouse accurately captures the user's biometric image and generates corresponding vein and fingerprint verification information. The key circuit then securely transmits the encrypted key information to the host computer based on the vein and fingerprint verification data, enabling rapid login and access to the system or data. This eliminates the risk of password leakage due to users manually entering passwords during secure login, improving both security and flexibility.

[0007] In one implementation, the finger vein recognition circuit includes a finger vein recognition chip, a first capacitor, and a second capacitor; one end of the first capacitor is connected to the finger vein recognition chip and a first external power supply, and the other end is grounded; one end of the second capacitor is connected to the finger vein recognition chip and a second external power supply, and the other end is grounded; the finger vein recognition chip is also connected to an image acquisition device, which is configured to acquire the finger vein image.

[0008] In one implementation, the fingerprint recognition circuit includes a fingerprint recognition chip and a first capacitor; one end of the first capacitor is connected to the fingerprint recognition chip and a first external power supply, and the other end is grounded; the fingerprint recognition chip is also connected to an image acquisition device configured to acquire the finger vein image.

[0009] The mouse described above features finger vein recognition and fingerprint recognition circuits. Through the coordinated operation of the finger vein recognition chip, fingerprint recognition chip, and image acquisition device, these circuits achieve efficient acquisition and processing of user finger vein and fingerprint images. The design of these circuits not only improves the accuracy and security of biometric identification but also ensures a stable power supply to the finger vein recognition chip and fingerprint recognition chip through the decoupling effect of the first and second capacitors, thereby improving the overall performance and reliability of the circuit.

[0010] In one implementation, the key circuit includes a security chip; the security chip is connected to the finger vein recognition chip or the fingerprint recognition chip, and the security chip is also connected to a hub chip in the control circuit.

[0011] In one implementation, the key circuit further includes a low-dropout linear regulator and a crystal oscillator; the input of the low-dropout linear regulator is connected to an external power supply, and the output of the low-dropout linear regulator is connected to the security chip; the crystal oscillator circuit is connected to the security chip and configured to provide a clock signal to the security chip.

[0012] The mouse described above connects to the corresponding pins of the finger vein recognition chip or fingerprint recognition chip via the data transmission and reception pins of the security chip, achieving efficient data communication. This connection method ensures that when the user performs finger vein or fingerprint verification, the security chip can promptly receive verification information and extract and send pre-stored key information to the host computer based on this information, thereby enabling fast access. Simultaneously, a low-dropout linear regulator provides a stable power supply voltage for the security chip, ensuring the reliability and stability of the chip during data processing. A crystal oscillator circuit provides a precise clock signal for the security chip, ensuring the accuracy of data synchronization and processing.

[0013] In one implementation, the key circuit further includes a plurality of light-emitting diodes (LEDs), the cathodes of which are respectively connected to the security chip, and the anodes of which are respectively connected to a third external power supply through corresponding current-limiting resistors, and are configured to display the operating status of the security chip.

[0014] The mouse described above uses multiple LEDs to provide intuitive indication of the different operating states of the security chip. This multi-LED design not only improves the user experience but also enhances the interactivity and operability of the solution through clear light signal feedback, ensuring that users have a clear understanding of the security verification process.

[0015] In one implementation, the mouse module circuit includes: an optical sensor chip connected to the hub chip via a filtering circuit; and a button circuit connected to the optical sensor chip.

[0016] In one implementation, the filtering circuit includes: a first resistor connected to the optical sensor chip; and a third capacitor, one end of which is connected to both the optical sensor chip and the first resistor, and the other end of which is grounded.

[0017] In the mouse described above, the first resistor is connected to the differential data positive pin of the optical sensor chip, forming a filter circuit with the third capacitor to ensure a stable voltage supply to the sensor chip. This improves the circuit's anti-interference capability, ensures the stability and accuracy of data transmission, and also enhances the overall circuit reliability and user experience.

[0018] In one implementation, the image acquisition device includes a sensor, a near-infrared array lamp group, and an optical lens.

[0019] Secondly, this application also provides an interactive system, including a host computer and any of the above-described mice, wherein the host computer is connected to the mouse and configured to identify the mouse module circuit and key circuit in the mouse.

[0020] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0021] 1. By integrating the key circuit and mouse module circuitry into the mouse, the host computer can simultaneously connect both the mouse and the USB key when only one interface is available. Furthermore, users can choose between finger vein or fingerprint recognition to obtain key information based on their preference. Whether using the finger vein or fingerprint recognition circuit, the mouse accurately captures the user's biometric image and generates corresponding finger vein and fingerprint verification information. The key circuit securely transmits the encrypted key information to the host computer based on the finger vein and fingerprint verification information, enabling rapid login and access to the system or data. This avoids the risk of password leakage due to users manually entering passwords during secure login, improving access security and flexibility.

[0022] 2. The provided finger vein recognition circuit and fingerprint recognition circuit, through the synergistic action of the finger vein recognition chip, fingerprint recognition chip, and image acquisition device, achieve efficient acquisition and processing of user finger vein and fingerprint images. The design of these circuits not only improves the accuracy and security of biometric identification but also ensures a stable power supply to the finger vein recognition chip and fingerprint recognition chip through the decoupling effect of the first and second capacitors, thereby improving the overall performance and reliability of the circuit.

[0023] 3. The security chip's data transmission and reception pins are connected to the corresponding pins of the finger vein recognition chip or fingerprint recognition chip, achieving efficient data communication. This connection method ensures that when a user performs finger vein or fingerprint verification, the security chip can promptly receive verification information and extract and send pre-stored key information to the host computer based on this information, thus enabling rapid access. Simultaneously, a low-dropout linear regulator provides a stable power supply voltage for the security chip, ensuring the chip's reliability and stability during data processing. A crystal oscillator circuit provides a precise clock signal for the security chip, ensuring the accuracy of data synchronization and processing.

[0024] 4. By using multiple light-emitting diodes (LEDs), the different operating states of the security chip are clearly indicated. The use of multiple LEDs not only improves the user experience but also enhances the interactivity and operability of the solution through clear light signal feedback, ensuring that users have a clear understanding of the security verification process.

[0025] 5. The first resistor is connected to the differential data positive pin of the optical sensor chip, forming a filter circuit with the third capacitor to ensure a stable voltage supply to the sensor chip. This improves the circuit's anti-interference capability, ensures the stability and accuracy of data transmission, and also enhances the overall circuit reliability and user experience. Attached Figure Description

[0026] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0027] Figure 1 shows a schematic diagram of the structure of a data interaction system provided in an embodiment of this application;

[0028] Figure 2 shows a circuit diagram of a finger vein recognition circuit provided in an embodiment of this application;

[0029] Figure 3 shows a circuit diagram of a fingerprint recognition circuit provided in an embodiment of this application;

[0030] Figure 4 shows a circuit diagram of a key circuit provided in an embodiment of this application;

[0031] Figure 5 shows a circuit diagram of a mouse module circuit provided in an embodiment of this application;

[0032] Figure 6 shows a circuit diagram of a control circuit provided in an embodiment of this application. Detailed Implementation

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0034] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0035] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0036] In this document, it should 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0039] Finger vein recognition technology is a biometric method that uses near-infrared light of a specific wavelength to illuminate the finger, leveraging the absorption properties of hemoglobin in the blood to capture a clear image of the veins inside the finger. This technology then processes the image and extracts features to convert the obtained vein image into unique personal biometric data, thereby authenticating the user. Similarly, fingerprint recognition technology is also a biometric method. It captures an image of the user's fingerprint, extracts key feature points using algorithms, and compares it with fingerprint templates stored in a database to verify or confirm the user's identity, thus authenticating the user.

[0040] A mouse is an input device that controls the cursor position on the screen by detecting the user's hand movements and allows the user to interact with a host computer through clicks, drags, and other operations. A USB key is a portable security device that interfaces with a host computer via a USB interface. For example, a USB key can connect to a computer or smartphone via a USB interface for login to mobile banking or other secure applications; it can also connect to an in-vehicle infotainment system via a USB interface for security authentication or data encryption; or it can connect to a network attached storage device via a USB interface for data security and user authentication during remote access. This application's embodiments, based on finger vein recognition technology, fingerprint recognition technology, the basic functions of a mouse, and a USB key, respectively set up corresponding finger vein recognition circuits, fingerprint recognition circuits, mouse module circuits, and key circuits, integrating these circuits into the mouse. This achieves at least one of the following beneficial effects: when the host computer has only one interface, both the mouse and the USB key can be connected simultaneously; or, password input is eliminated during secure login, improving access security.

[0041] The following explanation is based on the accompanying diagram:

[0042] Referring to Figure 1, a schematic diagram of a data interaction system provided in an embodiment of this application is shown. As shown in Figure 1, it includes: a mouse 100 and a host computer 200. The mouse 100 includes a finger vein recognition circuit 110 or a fingerprint recognition circuit 110, a key circuit 120, a mouse module circuit 130, a control circuit 140, and an image acquisition device 150. The finger vein recognition circuit 110 or fingerprint recognition circuit 110 is configured to generate finger vein verification information or fingerprint verification information based on the user's finger vein image or fingerprint image; the key circuit 120 is connected to the finger vein recognition circuit 110 or fingerprint recognition circuit 110 and is configured to extract key information based on the finger vein verification information or fingerprint verification information and send the key information to the host computer 200 for access; the mouse module circuit 130 is configured to implement the button operation and navigation operation of the mouse 100; the control circuit 140 is connected to the mouse module circuit 130 and the key circuit 120 respectively, and is used to enable the mouse module circuit 130 and the key circuit 120 to be independently identified; the image acquisition device 150 is connected to the finger vein recognition circuit 110 or fingerprint recognition circuit 110 and is configured to acquire the user's finger vein image or fingerprint image.

[0043] After the mouse 100 successfully connects to the host computer 200, the user can choose to obtain key information via finger vein verification or fingerprint verification as needed. For example, when the user uses finger vein verification, the finger vein recognition circuit 110 acquires the user's finger vein image and generates corresponding finger vein verification information based on the image. The control circuit 140 manages the connection interface between the mouse 100 and the host computer 200, enabling the host computer 200 to simultaneously recognize the mouse module circuit 130 and the key circuit 120. Therefore, when the finger vein verification information shows that the user's finger vein image matches a pre-stored finger vein image, the key circuit 120 sends the stored key information to the host computer 200 for login, thereby enabling system access or data access on the host computer 200.

[0044] Similarly, when a user uses fingerprint verification, the fingerprint recognition circuit 110 acquires the user's fingerprint image and generates corresponding fingerprint verification information based on the fingerprint image. When the fingerprint verification information shows that the user's fingerprint image matches a pre-stored fingerprint image, the key circuit 120 sends the stored key information to the host computer 200 for login, thereby enabling system access or data access on the host computer 200.

[0045] In this embodiment, the key circuit and mouse module circuit are integrated into the mouse, allowing the host computer to simultaneously connect the mouse and USB key when only one interface is available. Furthermore, users can choose either finger vein or fingerprint recognition to obtain key information based on their personal preference. Regardless of whether the finger vein or fingerprint recognition circuit is used, the mouse accurately captures the user's biometric image and generates corresponding finger vein and fingerprint verification information. The key circuit securely transmits the encrypted key information to the host computer based on the finger vein and fingerprint verification information, enabling rapid login and access to the system or data. This avoids the risk of password leakage due to users entering passwords during secure login, improving access security and flexibility.

[0046] Referring to Figure 2, a circuit diagram of a finger vein recognition circuit provided in an embodiment of this application is shown. As shown in Figure 2, the finger vein recognition circuit includes a finger vein recognition chip U7, a first capacitor C9, and a second capacitor C15; one end of the first capacitor C9 is connected to the finger vein recognition chip U7 and a first external power supply of 3V3, and the other end is grounded; one end of the second capacitor C15 is connected to the finger vein recognition chip U7 and a second external power supply of +5V, and the other end is grounded; the finger vein recognition chip U7 is also connected to an image acquisition device.

[0047] The image acquisition device can be integrated into the mouse and connected to the finger vein recognition chip U7 to acquire images of the user's finger veins or fingerprints. When acquiring the user's finger vein image, the near-infrared array lamps, image sensor, and optical lens in the image acquisition device work together. The near-infrared array lamps provide illumination to make the user's finger veins more visible. The optical lens images the illuminated finger veins onto the image sensor. The image sensor sends the captured finger vein image to the finger vein recognition chip U7 for processing. The finger vein recognition chip U7 performs multiple processing steps on the user's finger vein image, including image enhancement, filtering, normalization, binarization, and feature extraction, to generate finger vein verification information. Furthermore, when the finger vein verification information shows that the user's finger vein image matches a pre-stored finger vein image, the key circuit sends the stored key information to the host computer for access based on the finger vein verification information.

[0048] Furthermore, the first capacitor C9 and the second capacitor C15 are respectively connected to the 3.3V pin and the power input pin VCC-5V of the finger vein recognition chip U7. The first capacitor C9 and the second capacitor C15 are respectively connected to the first external power supply 3V3 and the second external power supply +5V to remove high-frequency noise on the power line and ensure that the finger vein recognition chip U7 or other circuit components receive a stable power supply.

[0049] Referring to Figure 3, a circuit diagram of a fingerprint recognition circuit provided in an embodiment of this application is shown. As shown in Figure 3, the fingerprint recognition circuit includes a fingerprint recognition chip U6 and a first capacitor C9. One end of the first capacitor C9 is connected to the fingerprint recognition chip U6 and a first external power supply 3V3, and the other end is grounded; the fingerprint recognition chip U6 is also connected to an image acquisition device.

[0050] When a user performs fingerprint verification, the fingerprint sensor in the image acquisition device captures the user's fingerprint image and sends it to the fingerprint recognition chip U6 for processing. The fingerprint recognition chip U6 performs multiple processing steps on the user's fingerprint image, including grayscale processing, normalization, image segmentation, binarization, image enhancement, and thinning, to generate fingerprint verification information. When the fingerprint verification information shows that the user's fingerprint image matches a pre-stored fingerprint image, the key circuit sends the stored key information to the host computer for access based on the fingerprint verification information. Furthermore, the first capacitor C9 is connected to pin 3V3 of the fingerprint recognition chip U6 and the first external power supply 3V3 to remove high-frequency noise on the power line, ensuring a stable power supply for the fingerprint recognition chip U6 or other circuit components.

[0051] The finger vein recognition circuit and fingerprint recognition circuit provided in this application, through the synergistic action of the finger vein recognition chip, fingerprint recognition chip, and image acquisition device, achieve efficient acquisition and processing of user finger vein images and fingerprint images. The design of these circuits not only improves the accuracy and security of biometric identification but also ensures a stable power supply to the finger vein recognition chip and fingerprint recognition chip through the decoupling effect of the first and second capacitors, thereby improving the performance and reliability of the entire circuit.

[0052] Referring to Figure 4, a circuit diagram of a key circuit provided in an embodiment of this application is shown. As shown in Figure 4, the key circuit includes a security chip (or USB-KEY chip) U5, a low-dropout linear regulator U4, and a crystal oscillator Y1. The security chip U5 is connected to a finger vein recognition chip or a fingerprint recognition chip and is configured to receive finger vein verification information or fingerprint verification information, and send key information to a host computer for access based on the finger vein verification information or fingerprint verification information; the security chip U5 is also connected to a hub chip in the control circuit. The input terminal of the low-dropout linear regulator U4 is connected to an external power supply, the output terminal of the low-dropout linear regulator U4 is connected to the security chip U5, and the crystal oscillator Y1 is connected to the security chip U5 and is configured to provide a clock signal to the security chip U5.

[0053] The data transmission pin TXD1 and data reception pin RXD1 of the security chip U5 are respectively connected to the data reception pin RXD and data transmission pin TXD of the finger vein recognition chip, or the data transmission pin TXD1 and data reception pin RXD1 of the security chip U5 are respectively connected to the data reception pin RX and data transmission pin TX of the fingerprint recognition chip. When the user performs finger vein verification or fingerprint verification, the security chip U5 extracts the pre-stored key information based on the finger vein verification information and fingerprint verification information sent by the finger vein recognition chip or fingerprint recognition chip, and sends the key information to the host computer for access.

[0054] The input terminal VIN of the low-dropout linear regulator U4 is connected to an external power supply, and its output terminal VOUT is connected to pins VDD33 and VCC of the safety chip U5. The main function of the low-dropout linear regulator U4 is to provide a stable power supply, regulating the external power voltage received at input terminal VIN and outputting it through output terminal VOUT to power the safety chip U5 and other circuit components. The crystal oscillator Y1 is connected to the first clock source input pin EXTAL and the second clock source input pin XTAL of the safety chip U5, providing a stable clock signal for the safety chip U5.

[0055] In this embodiment, the security chip connects to the corresponding pins of the finger vein recognition chip or fingerprint recognition chip via its data transmission and reception pins, achieving efficient data communication. This connection method ensures that when a user performs finger vein or fingerprint verification, the security chip can promptly receive verification information and extract and send pre-stored key information to the host computer based on this information, thereby enabling rapid access. Simultaneously, a low-dropout linear regulator provides a stable power supply voltage for the security chip, ensuring the reliability and stability of the chip during data processing. A crystal oscillator provides a precise clock signal for the security chip, ensuring the accuracy of data synchronization and processing.

[0056] In one embodiment of this application, referring to Figure 4, the key circuit further includes a plurality of light-emitting diodes (LEDs). The cathodes of the plurality of LEDs are respectively connected to the security chip U5, and the anodes of the plurality of LEDs are respectively connected to a third external power supply through corresponding current-limiting resistors, and are configured to display the working status of the security chip U5.

[0057] Multiple light-emitting diodes (LEDs) include a first LED_B, a second LED_R, and a third LED_G. The cathode of the first LED_B is connected to the MOSI2 pin of the security chip U5, and the anode of the first LED_B is connected to a third external power supply (3V3) through a first current-limiting resistor R9. The cathode of the second LED_R is connected to the SS11 pin of the security chip U5, and the anode of the second LED_R is connected to the third external power supply (3V3) through a second current-limiting resistor R10. The cathode of the third LED_G is connected to the MISO2 pin of the security chip U5, and the anode of the third LED_G is connected to the third external power supply (3V3) through a third current-limiting resistor R11. During the process of the image acquisition device acquiring the user's finger vein image or fingerprint image, and the finger vein recognition chip and fingerprint recognition chip processing the finger vein image or fingerprint image to generate corresponding verification information, the first LED_B flashes blue light, while the second LED_R and the third LED_G do not emit light, indicating that the security chip U5 is waiting for finger vein verification information or fingerprint verification information.

[0058] When the second LED_R flashes red, while the first LED_B and the third LED_G remain off, it indicates that the security chip U5 has received the finger vein verification information or fingerprint verification information and is retrieving the pre-stored key information based on this information. Similarly, when the third LED_G flashes green, while the first LED_B and the second LED_R remain off, it indicates that the security chip U5 has sent the key information to the host computer.

[0059] In this embodiment, multiple light-emitting diodes (LEDs) are used to provide intuitive indication of the different operating states of the security chip. The use of multiple LEDs not only improves the user experience but also enhances the interactivity and operability of the solution through clear light signal feedback, ensuring that users have a clear understanding of the security verification process.

[0060] Referring to Figure 5, a circuit diagram of a mouse module circuit according to an embodiment of this application is shown. As shown in Figure 5, the mouse module circuit includes an optical sensor chip U1 and a button circuit. The optical sensor chip U1 is connected to a hub chip through a filter circuit and is configured to implement mouse navigation operations; the button circuit is connected to the optical sensor chip U1 and is configured to implement mouse button operations. The button circuit includes a first button sub-circuit BL1 and a second button sub-circuit BL2. Pin 1 of the second button sub-circuit BL2 is connected to pin 2 of the first button sub-circuit, and pin 2 of the second button sub-circuit is grounded. The first button sub-circuit BL1 can implement left-click or right-click operations, and the second button sub-circuit BL2 can implement left-click or right-click operations.

[0061] In one embodiment of this application, referring to Figure 5, the mouse module circuit further includes a fourth light-emitting diode LED1, a first resistor R1, a second resistor R2, a third capacitor C1 and a fourth capacitor C2, a first switch K1 and a second switch ENSW1.

[0062] The fourth LED (LED1) and the first switch K1 are both connected to pin MFIO_1 (LED) of the optical sensor chip U1. LED1 indicates the mouse's operating status, and switch K1 controls the on / off state of LED1. Pin 1 of the second switch ENSW1 is connected to both the external power supply and pin VDD5 of the optical sensor chip U1, controlling the external power supply to the chip.

[0063] The first resistor R1 and the second resistor R2 are connected to the differential data positive pin D+ and the differential data negative pin D- of the optical sensor chip U1, respectively. One end of the third capacitor C1 is connected to the differential data positive pin D+ of the optical sensor chip U1 and the first resistor R1, and the other end is grounded. One end of the fourth capacitor C2 is connected to the differential data negative pin D- of the optical sensor chip U1 and the second resistor R2, and the other end is grounded. The first resistor R1, the second resistor R2, the third capacitor C1, and the fourth capacitor C2 together form a filter circuit to provide a stable voltage to the optical sensor chip U1.

[0064] In this embodiment, the combination of the fourth LED and the first switch is connected to the pins of the optical sensor chip. This allows the fourth LED to indicate the mouse's operating status, while the first switch controls the LED's on / off state, providing the user with intuitive device status feedback. The second switch connects its pins to the external power supply and the optical sensor chip's pins, controlling the power supply from the external power source. Furthermore, the first and second resistors are connected to the differential data positive and negative pins of the optical sensor chip, forming a filter circuit with the third and fourth capacitors to ensure a stable voltage supply to the sensor chip. This improves the circuit's anti-interference capability, ensures the stability and accuracy of data transmission, and enhances the overall circuit reliability and user experience.

[0065] Referring to Figure 6, a circuit diagram of a control circuit provided in an embodiment of this application is shown. As shown in Figure 6, the control circuit includes a hub chip (or USB-Hub chip) U3. The first differential data positive pin DP1 and the first differential data negative pin DM1 of the hub chip U3 are respectively connected to the differential data positive pin DP and the differential data negative pin DM of the security chip, and the fourth differential data positive pin DP4 and the fourth differential data negative pin DM4 of the hub chip U3 are respectively connected to the differential data positive pin D+ and the differential data negative pin D- of the optical sensor chip U1. The hub chip U3 allows multiple circuits to be connected to the host computer through a single interface. Therefore, the hub chip U3 needs to manage the interface between the mouse and the host computer so that the mouse and USB key can be independently identified in the host computer.

[0066] This application also provides an interactive system, including a mouse and a host computer as described in any of the above embodiments, wherein the host computer is connected to the mouse and is configured to identify the mouse module circuit and key circuit in the mouse.

[0067] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A mouse, characterized in that, include: The finger vein recognition circuit or fingerprint recognition circuit is configured to generate finger vein verification information or fingerprint verification information; A key circuit, connected to the finger vein recognition circuit or the fingerprint recognition circuit, is configured to extract key information; The mouse module circuit is configured to implement the button operation and navigation operation of the mouse; A control circuit is provided, which is connected to the mouse module circuit and the key circuit respectively, and is used to enable the mouse module circuit and the key circuit to be independently identified.

2. The mouse according to claim 1, characterized in that, The finger vein recognition circuit includes a finger vein recognition chip, a first capacitor, and a second capacitor. One end of the first capacitor is connected to the finger vein recognition chip and the first external power supply, and the other end is grounded; One end of the second capacitor is connected to the finger vein recognition chip and the second external power supply, and the other end is grounded; The finger vein recognition chip is also connected to an image acquisition device configured to acquire finger vein images.

3. The mouse according to claim 1, characterized in that, The fingerprint recognition circuit includes a fingerprint recognition chip and a first capacitor; One end of the first capacitor is connected to the fingerprint recognition chip and the first external power supply, and the other end is grounded; The fingerprint recognition chip is also connected to an image acquisition device configured to acquire fingerprint images.

4. The mouse according to claim 2 or 3, characterized in that, The key circuit includes a security chip connected to the finger vein recognition circuit or the fingerprint recognition circuit, and the security chip is also connected to the hub chip in the control circuit.

5. The mouse according to claim 4, characterized in that, The key circuit also includes: A low-dropout linear regulator, wherein the input terminal of the low-dropout linear regulator is connected to an external power supply, and the output terminal of the low-dropout linear regulator is connected to the safety chip; A crystal oscillator circuit, connected to the security chip, is configured to provide a clock signal to the security chip.

6. The mouse according to claim 5, characterized in that, The key circuit also includes: Multiple light-emitting diodes (LEDs) are configured to display the operating status of the security chip, with the cathodes of each LED connected to the security chip and the anodes of each LED connected to a third external power supply via corresponding current-limiting resistors.

7. The mouse according to claim 4, characterized in that, The mouse module circuit includes: An optical sensor chip, wherein the optical sensor chip is connected to the hub chip through a filter circuit; A button circuit, which is connected to the optical sensor chip.

8. The mouse according to claim 7, characterized in that, The filtering circuit includes: A first resistor is connected to the optical sensor chip; The third capacitor has one end connected to the optical sensor chip and the first resistor, and the other end grounded.

9. The mouse according to claim 2, characterized in that, The image acquisition device includes a sensor, a near-infrared array lamp group, and an optical lens.

10. An interactive system, characterized in that, The device includes a host computer and a mouse as described in any one of claims 1-9, wherein the host computer is connected to the mouse and is configured to identify the mouse module circuit and key circuit in the mouse.

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