Intelligent dimming optical mouse

Abstract

The utility model relates to the technical field of mice, in particular to an intelligent dimming optical mouse. The intelligent dimming optical mouse in the first aspect of the embodiment of the utility model comprises a shell, and a through hole is formed in the bottom of the shell; the light-emitting element is fixedly arranged in the shell, and when the light-emitting element emits light, the light-emitting element emits light to the placement surface of the mouse through the through hole, so that the light sensing mechanism collects an image of the placement surface; the brightness adjusting unit is fixedly arranged in the shell, and the brightness adjusting unit comprises an optical sensing module, a control unit and a dimming execution unit; the optical sensing module is used for detecting the quantity of light irradiated to the placing surface by the light-emitting element; the control unit is used for generating light adjusting signals according to the light quantity; and the dimming execution unit is electrically connected with the light-emitting element and used for adjusting the amount of light irradiated to the placement surface by the light-emitting element according to the light adjusting signal. According to the optical mouse, the brightness of the light source is automatically adjusted, so that the performance of the brightness adjusting unit in different light environments is improved.

Description

Technical Field

[0001] This application relates to the field of mouse technology, and in particular to an intelligent dimming optical mouse. Background Technology

[0002] The dimming unit of an optical mouse uses an optical sensing module (similar to a miniature camera) to capture the mouse's movement on a surface. It relies on an LED light source to illuminate the lower surface of the optical mouse. After reflection and fine-tuning, the reflected light is collected by a lens to form an image on the optical sensing module.

[0003] In optical mouse design, LEDs serve as the light source, and their brightness is typically fixed. The optical sensing module controls the amount of light entering the module by adjusting the LED's on-time. The aim is to adjust the amount of light received by the optical sensing module by changing the LED's on-time to adapt to different surfaces and create a clear, legible image. It should be understood that different surfaces have significantly different brightness requirements; light-colored surfaces require less brightness, while dark-colored surfaces require more. Traditional optical sensing modules control the amount of light entering the module by adjusting the LED's on-time to create a clear, legible image. However, this technology has limitations when the light required by the optical sensing module exceeds the LED's brightness adjustment range; it cannot adapt to all possible lighting environments by simply adjusting the on-time. Therefore, improving the performance of optical mice under extreme lighting conditions has become a pressing issue for the industry. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an intelligent dimming optical mouse that can improve the performance of the optical mouse when facing extreme lighting conditions.

[0005] A smart dimming optical mouse according to a first aspect embodiment of this application includes:

[0006] The housing has a through hole at its bottom;

[0007] A light-emitting element is fixedly disposed inside the housing. When the light-emitting element emits light, it emits light through the through hole to the placement surface of the mouse, so that the photosensitive mechanism can capture the image of the placement surface.

[0008] A brightness adjustment unit is fixedly installed inside the housing. The brightness adjustment unit includes an optical sensing module, a control unit, and a dimming execution unit.

[0009] The optical sensing module is used to detect the amount of light illuminating the placement surface by the light-emitting element;

[0010] The control unit is used to generate a light modulation signal according to the light intensity;

[0011] The dimming execution unit is electrically connected to the light-emitting element and is used to adjust the amount of light illuminating the placement surface by the light-emitting element according to the light adjustment signal.

[0012] According to some embodiments of this application, the brightness adjustment unit further includes a power connection port, a first current limiting resistor, and a light-emitting element detection subunit;

[0013] The power connection port is used to connect to an external power source;

[0014] One end of the first current-limiting resistor is connected to the power connection port, and the other end of the first current-limiting resistor is connected to the positive terminal of the light-emitting element. The light-emitting element is connected to the optical sensing module via the negative terminal.

[0015] The dimming execution unit includes a current-limiting controlled terminal, a first current-limiting adjustment terminal, and a second current-limiting adjustment terminal; wherein, the dimming execution unit is connected in parallel across the two ends of the first current-limiting resistor via the first current-limiting adjustment terminal and the second current-limiting adjustment terminal;

[0016] The control unit includes a current limiting control terminal and a light emission detection terminal; wherein, the current limiting control terminal is connected to the current limiting controlled terminal, and the light emission detection terminal is connected between the light emission element and the optical sensing module through the light emission element detection subunit.

[0017] According to some embodiments of this application, the optical sensing module includes a component access pin, a power supply pin, and a ground pin; wherein, the component access pin is connected to the negative terminal of the light-emitting element, the power supply pin is used to connect to an external power supply, and the ground pin is used to ground.

[0018] According to some embodiments of this application, the optical sensing module further includes an analog power supply pin, which is used to connect to an external power supply through a power supply branch, and the analog power supply pin is used to connect to an external ground wire through a grounding branch;

[0019] A first decoupling capacitor is provided in the grounding branch. One end of the first decoupling capacitor is connected to the analog power supply pin, and the other end of the first decoupling capacitor is used for grounding.

[0020] The first decoupling capacitor is used for the grounding line, and a second decoupling capacitor and a third decoupling capacitor are connected in parallel with the power supply branch.

[0021] According to some embodiments of this application, the optical sensing module further includes a serial data transmission pin, a serial clock pin, and a motion wake-up pin; wherein, the serial data transmission pin is used to transmit data, the serial clock pin is used to receive a clock signal, and the motion wake-up pin is used to wake up the optical sensing module when motion is detected.

[0022] According to some embodiments of this application, the dimming execution unit includes a resistor switch control module, a switching transistor, and a second current limiting resistor; wherein, the switching transistor includes a switch control terminal, a current input terminal, and a current output terminal;

[0023] The current limiting controlled terminal is connected to the switch control terminal through the resistor switch control module;

[0024] The current input terminal is connected to the first current limiting adjustment terminal;

[0025] The current output terminal is connected to the second current limiting adjustment terminal through the second current limiting resistor.

[0026] According to some embodiments of this application, the dimming execution unit includes a variable resistor, which is used to adjust the amount of light illuminating the placement surface by the light-emitting element according to the light adjustment signal.

[0027] According to some embodiments of this application, the control unit includes a dynamic current generation subunit, which is used to generate a dynamic current as the light modulation signal based on the light intensity.

[0028] According to some embodiments of this application, the control unit is configured to: when the light-emitting element detection subunit detects that the conduction time of the light-emitting element exceeds a first threshold, adjust the impedance of the dimming execution unit through the current-limiting controlled terminal to increase the current flowing through the light-emitting element.

[0029] According to some embodiments of this application, the control unit is configured to: when the light-emitting element detection subunit detects that the conduction time of the light-emitting element is lower than a second threshold, adjust the impedance of the dimming execution unit through the current-limiting controlled terminal to reduce the current flowing through the light-emitting element.

[0030] The intelligent dimming optical mouse according to the embodiments of this application has at least the following beneficial effects:

[0031] The first aspect of this application describes a smart dimming optical mouse, comprising: a housing with a through hole at the bottom; a light-emitting element fixedly disposed within the housing, which emits light through the through hole onto the mouse's placement surface when emitting light, allowing a photosensitive mechanism to capture an image of the placement surface; and a brightness adjustment unit fixedly disposed within the housing, comprising an optical sensing module, a control unit, and a dimming execution unit. The optical sensing module detects the amount of light illuminating the placement surface from the light-emitting element; the control unit generates a light adjustment signal based on the amount of light; and the dimming execution unit is electrically connected to the light-emitting element and adjusts the amount of light illuminating the placement surface from the light-emitting element according to the light adjustment signal. It should be noted that the optical mouse of this application, through the coordinated operation of the dimming execution unit and the control unit, achieves automatic adjustment of the light source brightness, thereby improving the performance of the brightness adjustment unit under different lighting conditions and overcoming the limitations of traditional optical sensing modules under extreme lighting conditions. The use of this type of dimming execution unit in the brightness adjustment unit not only enhances the adaptability of the brightness adjustment unit but also provides users with a more stable and reliable user experience.

[0032] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0034] Figure 1 A circuit connection diagram of the dimming execution unit provided in an embodiment of this application;

[0035] Figure 2 This is another circuit connection diagram of the dimming execution unit provided in the embodiments of this application;

[0036] Figure 3 A schematic diagram of an optical sensing module provided in an embodiment of this application;

[0037] Figure 4 This is another circuit connection diagram of the dimming execution unit provided in the embodiments of this application;

[0038] Figure 5 This is another circuit connection diagram of the dimming execution unit provided in the embodiments of this application;

[0039] Figure 6 This is a schematic diagram of the structure of an optical mouse provided in an embodiment of this application. Detailed Implementation

[0040] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0041] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this application, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] In the description of this application, it should be noted that, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution. Furthermore, the identification of specific steps in the following text does not imply a limitation on the order of steps or execution logic. The execution order and logic between each step should be understood and inferred from the content described in the embodiments.

[0045] The dimming unit of an optical mouse uses an optical sensing module (similar to a miniature camera) to capture the mouse's movement on a surface. It relies on an LED light source to illuminate the lower surface of the optical mouse. After reflection and fine-tuning, the reflected light is collected by a lens to form an image on the optical sensing module.

[0046] In the design of optical mice, LEDs serve as the light source, and their brightness is typically fixed. The optical sensing module controls the amount of light entering the module by adjusting the LED's on-time. The aim is to adjust the amount of light received by the optical sensing module by changing the LED's on-time to adapt to different surfaces and create a clearly discernible image. It should be understood that different surfaces have significantly different brightness requirements; light-colored surfaces require less brightness, while dark-colored surfaces require more. Traditional optical sensing modules control the amount of light entering the module by adjusting the LED's on-time to create a clearly discernible image.

[0047] However, the technology may fail when the amount of light required by the optical sensing module exceeds the LED brightness adjustment range. Specifically:

[0048] Insufficient exposure due to LEDs reaching their maximum on-time:

[0049] If the optical sensing module requires more light to form a clear image, but the LED has already reached its maximum on-time and the light supply is still insufficient, underexposure will occur. In this case, due to the limited brightness range of the LED, even if the LED remains on continuously, it cannot provide enough light, resulting in a dim and difficult-to-read image.

[0050] Overexposure caused by LEDs reaching their minimum on-time:

[0051] Conversely, if the optical sensor module requires less light, and the LED's on-time has reached its minimum, but the light output is still excessive, it will lead to overexposure. In this case, even though the LED's on-time is very short, the optical sensor module still receives too much light, resulting in an overly bright image and loss of detail.

[0052] Both of these situations will affect the performance of the brightness adjustment unit. Traditional methods have limitations when facing extreme lighting requirements, meaning they cannot adapt to all possible lighting environments by simply adjusting the on-time.

[0053] Therefore, how to improve the performance of brightness adjustment units when facing extreme lighting requirements has become an urgent problem to be solved in the industry.

[0054] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a brightness adjustment unit and an optical mouse, which can improve the performance of the brightness adjustment unit when facing extreme lighting conditions.

[0055] The intelligent dimming optical mouse design of this application aims to solve the performance limitations of traditional optical mice under extreme lighting conditions. This optical mouse, by integrating key components such as a shell, a light-emitting element, and a brightness adjustment unit, achieves intelligent adjustment of the amount of light required when the mouse moves on different surfaces. An intelligent dimming optical mouse according to an embodiment of this application may include:

[0056] The casing has a through hole at its bottom.

[0057] It should be noted that the shell is the external structure of the mouse, and there is a through hole on its bottom to allow light emitted by the light-emitting element to pass through.

[0058] The light-emitting element is fixedly installed inside the housing. When the light-emitting element emits light, it emits light through the through hole onto the mouse's placement surface so that the photosensitive mechanism can capture the image of the placement surface.

[0059] It should be noted that the light-emitting element is fixedly installed inside the housing. When emitting light, the element emits light through a through-hole onto the surface where the mouse is placed. This design ensures that the mouse can form a clear image on various surfaces for the optical sensing module to capture.

[0060] The brightness adjustment unit is fixedly installed inside the housing. The brightness adjustment unit includes an optical sensing module, a control unit, and a dimming execution unit.

[0061] It should be noted that the brightness adjustment unit is the core of this design, which includes an optical sensing module, a control unit, and a dimming execution unit.

[0062] The optical sensing module is used to detect the amount of light illuminating the surface of the light-emitting element;

[0063] It should be noted that the optical sensing module is responsible for detecting the amount of light illuminating the surface of the light-emitting element, which is the basis for realizing intelligent dimming.

[0064] The control unit is used to generate light adjustment signals based on the amount of light.

[0065] It should be noted that the control unit is used to generate a light adjustment signal based on the amount of light detected by the optical sensing module; this is the decision-making unit in the intelligent dimming process. In the intelligent dimming optical mouse of this application embodiment, the control unit is responsible for processing the amount of light illuminating the placement surface from the light-emitting element and generating a corresponding light adjustment signal based on this amount of light. The control unit can be implemented using a microcontroller unit (MCU), because MCUs have the ability to process complex logic and control tasks, making them very suitable for applications requiring real-time response and precise control.

[0066] The dimming actuator is electrically connected to the light-emitting element and is used to adjust the amount of light illuminating the placement surface by the light-emitting element according to the light adjustment signal.

[0067] It should be noted that the dimming actuator is electrically connected to the light-emitting element, and it adjusts the amount of light illuminating the surface based on the light adjustment signal generated by the control unit. This adjustment can be continuous or phased, depending on the design and algorithm of the control unit. The introduction of the dimming actuator enables the optical mouse to dynamically adjust the brightness of the light-emitting element according to the needs of the actual lighting environment, thereby forming a clear and distinguishable image on both light and dark surfaces.

[0068] Through this intelligent dimming mechanism, the optical mouse can not only adapt to the brightness requirements of different surfaces, but also maintain high performance under extreme lighting conditions, such as in strong or weak light environments. This design overcomes the limitations of traditional optical mice in brightness adjustment, providing a more flexible and effective solution to cope with various lighting environments and improve the user experience.

[0069] In summary, the intelligent dimming optical mouse of this application embodiment achieves precise control of the light intensity of the light-emitting element through the integration of a brightness adjustment unit and an intelligent adjustment mechanism, thereby maintaining the stability and reliability of mouse performance under different lighting conditions. This design not only improves the adaptability of the optical mouse but also provides a new direction for the development of mouse technology.

[0070] Reference Figure 1 The brightness adjustment unit according to the embodiments of this application includes a power connection port, a control unit, a dimming execution unit, a first current limiting resistor, a light-emitting element, an optical sensing module, and a light-emitting element detection subunit.

[0071] Power connection port for connecting to an external power supply VCC;

[0072] One end of the first current-limiting resistor is connected to the power connection port, and the other end of the first current-limiting resistor is connected to the positive terminal of the light-emitting element. The light-emitting element is connected to the optical sensing module via the negative terminal.

[0073] It should be noted that the power connection port provides a stable power supply to the entire circuit, ensuring its normal operation. The first current-limiting resistor serves to protect and regulate the current in the circuit. One end of it is connected to the power connection port, and the other end is connected to the positive terminal of the light-emitting element. The negative terminal of the light-emitting element is connected to the optical sensing module, forming a current path.

[0074] The dimming execution unit includes a current-limiting controlled terminal, a first current-limiting adjustment terminal, and a second current-limiting adjustment terminal; wherein, the dimming execution unit is connected in parallel across the two ends of a first current-limiting resistor via the first current-limiting adjustment terminal and the second current-limiting adjustment terminal;

[0075] It should be noted that the dimming execution unit is a key component of the circuit. The dimming execution unit includes a current-limiting controlled terminal, a first current-limiting adjustment terminal, and a second current-limiting adjustment terminal. The dimming execution unit is connected in parallel across a first current-limiting resistor via the first and second current-limiting adjustment terminals, allowing the control unit to adjust the resistance value of the current-limiting resistor as needed, thereby controlling the current flowing through the light-emitting element and adjusting the brightness of the light-emitting element.

[0076] The control unit includes a current limiting control terminal and a light emission detection terminal; wherein, the current limiting control terminal is connected to the current limiting controlled terminal, and the light emission detection terminal is connected between the light emission element and the optical sensing module through the light emission element detection subunit.

[0077] It should be noted that the light-emitting element detection subunit is responsible for detecting the level signal of the light-emitting element and sending these signals to the control unit. The control unit uses these level signals to determine the current illumination conditions and adjusts the current-limiting resistor value accordingly to meet the light intensity requirements of the optical sensing module. The light-emitting detection terminal is connected between the light-emitting element and the optical sensing module through the light-emitting element detection subunit, used to monitor the operating status of the light-emitting element and ensure the stability and reliability of the light source. The control unit, as the control center of the circuit, includes a current-limiting control terminal and a light-emitting detection terminal. The current-limiting control terminal is connected to the current-limiting controlled terminal, responsible for receiving signals from the light-emitting element detection subunit and controlling the dimming execution unit based on these signals to achieve precise adjustment of the brightness of the light-emitting element.

[0078] This application achieves automatic adjustment of light source brightness through the coordinated operation of a dimming execution unit and a control unit, thereby improving the performance of the brightness adjustment unit under different lighting conditions and overcoming the limitations of traditional optical sensing modules under extreme lighting conditions. Using a dimming execution unit with this design within the brightness adjustment unit not only enhances the adaptability of the unit but also provides users with a more stable and reliable user experience.

[0079] Reference Figure 2 According to some embodiments of this application, the dimming execution unit includes a resistor switch control module, a switching transistor, and a second current limiting resistor; wherein, the switching transistor Q1 includes a switch control terminal, a current input terminal, and a current output terminal;

[0080] The current-limiting controlled terminal is connected to the switch control terminal through a resistor switch control module;

[0081] The current input terminal is connected to the first current limiting adjustment terminal;

[0082] The current output terminal is connected to the second current limiting adjustment terminal through the second current limiting resistor.

[0083] In some embodiments, the dimming actuator may include a resistor switch control module, a switching transistor Q1, and a second current-limiting resistor. This design allows the dimming actuator to dynamically adjust the current flowing through the light-emitting element according to the needs of the optical sensing module, thereby adapting to the surface under different lighting conditions.

[0084] It should be noted that the switching transistor Q1 is the core component of the dimming actuator, and it includes three terminals: a switch control terminal, a current input terminal, and a current output terminal. The switch control terminal receives signals from the resistor switch control module, which determine the on or off state of the switching transistor Q1. The current input terminal is connected to the first current-limiting adjustment terminal, while the current output terminal is connected to the second current-limiting adjustment terminal through a second current-limiting resistor. This connection method allows the current to flow through the second current-limiting resistor under the control of the switching transistor Q1, achieving fine adjustment of the current of the light-emitting element.

[0085] The function of the resistor switch control module is to receive instructions from the control unit and, based on the amount of light received by the optical sensing module and the feedback from the light-emitting element detection subunit, control the switching control terminal of the switching transistor Q1. When it is necessary to increase the brightness of the light-emitting element, the resistor switch control module will turn on the switching transistor Q1, allowing more current to flow through the second current-limiting resistor and the light-emitting element. Conversely, when it is necessary to reduce the brightness, the resistor switch control module will turn off Q1, reducing the current flowing through the light-emitting element.

[0086] The second current-limiting resistor in the circuit serves to protect and regulate the current. It is connected to the current output terminal of the switching transistor Q1 to ensure that the current flows within a safe range and prevents the light-emitting element from being damaged by excessive current. By adjusting the resistance value of the second current-limiting resistor, the brightness of the light-emitting element can be further fine-tuned.

[0087] This dimming actuator design achieves precise control over the brightness of the light-emitting element through the coordinated operation of the resistive switch control module, the switching transistor Q1, and the second current-limiting resistor. This not only improves the performance of the dimming actuator under different lighting conditions but also provides users with a more stable and reliable user experience. By dynamically adjusting the brightness of the light-emitting element, the dimming actuator ensures that the optical sensing module obtains a clear image under various surface conditions, thereby improving the mouse's tracking accuracy and response speed.

[0088] It should be understood that the core design of some dimming execution units lies in adjusting the current flowing through the switching transistor by changing the impedance that limits current in the circuit, thereby controlling the brightness of the light-emitting element. Besides the combination of the resistor switch control module, the switching transistor, and the second current-limiting resistor mentioned in the foregoing embodiments, the following similar examples can also implement the function of the dimming execution unit:

[0089] Variable resistor (potentiometer): A variable resistor is used as part of the dimming actuator, and the current is changed by manually or automatically adjusting the resistance value of the potentiometer. This method can provide continuous resistance changes, thereby achieving fine control of the current.

[0090] Digital potentiometers: Digital potentiometers control their resistance value using digital signals, enabling precise adjustment of current. They are typically controlled by microcontrollers or digital circuits and are suitable for applications requiring automated adjustment.

[0091] MOSFET array: An array of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) is used to change the total impedance of a circuit by selectively turning the MOSFETs on or off. MOSFET arrays can provide multiple resistance value options, enabling multi-level current regulation.

[0092] Relay-controlled resistor networks: By switching between different resistor networks using relays, the impedance used for current limiting in the circuit can be changed. Relays can be controlled by microcontrollers to achieve automated current regulation.

[0093] Analog switches: Analog switches (such as analog multiplexers) are used to select different resistance values. Analog switches are controlled by a microcontroller and can switch different resistors as needed to adjust the current.

[0094] PWM (Pulse Width Modulation) control: This indirectly regulates the average current flowing through the light-emitting element by controlling the on-time of the switching transistor using a PWM signal. PWM control can provide very fine brightness adjustment and is suitable for applications requiring fast response.

[0095] Photoresistor: Utilizing the sensitivity of a photoresistor to light intensity, it is integrated into the dimming actuator. The resistance of the photoresistor changes with the light intensity, thereby achieving automatic current adjustment.

[0096] Hall effect sensor: A Hall effect sensor detects changes in a magnetic field, which in turn controls the dimming actuator. In some applications, changes in the magnetic field can be used to indicate changes in current, thereby achieving indirect control of the current.

[0097] It should be noted that the implementation methods of the dimming execution unit are not limited to the examples above.

[0098] Reference Figure 3 , Figure 4 According to some embodiments of this application, the optical sensing module includes an element access pin LED, a power supply pin VDD, and a ground pin VSS; wherein, the element access pin LED is connected to the negative terminal of the light-emitting element, the power supply pin VDD is used to connect to an external power supply VCC, and the ground pin VSS is used to ground.

[0099] In some embodiments of this application, the design of the optical sensing module considers multiple aspects such as power management, signal processing, and motion detection to ensure the stability and performance of the optical sensing module. The optical sensing module includes component access pins LED, power supply pin VDD, ground pin VSS, and analog power supply pin VDDA. The configuration of these pins ensures that the optical sensing module can be correctly connected to external circuits and operate stably.

[0100] The LED pin is directly connected to the negative terminal of the light-emitting element. This design ensures that the light generated by the light-emitting element can be correctly received by the optical sensing module for image formation. The power supply pin VDD is used to connect to the external power supply VCC, providing the necessary operating voltage for the optical sensing module. The ground pin VSS is used for grounding, ensuring a stable reference potential for the circuit and avoiding signal interference caused by floating ground potential.

[0101] According to some embodiments of this application, the optical sensing module further includes an analog power supply pin VDDA, wherein the power supply pin VDD is used to connect to an external power supply VCC through a power supply branch, and the analog power supply pin VDDA is used to connect to an external ground wire through a ground branch.

[0102] A first decoupling capacitor C38 is provided in the grounding branch. One end of the first decoupling capacitor C38 is connected to the analog power supply pin VDDA, and the other end of the first decoupling capacitor C38 is used for grounding.

[0103] The first decoupling capacitor C38 is used for the grounding line, and the second decoupling capacitor C39 and the third decoupling capacitor C37 are connected in parallel with the power supply branch.

[0104] In some embodiments, the optical sensing module may further include an analog power supply pin VDDA, which is connected to an external power supply VCC via a power supply branch, and the analog power supply pin VDDA is connected to an external ground line via a ground branch. This design helps reduce the impact of power supply noise on the analog signal and improves signal purity. A first decoupling capacitor C38 is provided in the ground branch, with one end connected to the analog power supply pin VDDA and the other end grounded. The function of the first decoupling capacitor C38 is to filter out high-frequency noise in the power supply, providing a more stable power supply voltage for the optical sensing module.

[0105] The first decoupling capacitor C38 is used for grounding. A second decoupling capacitor C39 and a third decoupling capacitor C37 are connected in parallel between the grounding line and the power supply branch. These decoupling capacitors further enhance the stability of the power supply and reduce the impact of power supply ripple and noise on the performance of the optical sensing module.

[0106] It should be noted that capacitors C37, C38, and C39 are used for power supply decoupling, reducing power supply noise, and stabilizing the power supply voltage.

[0107] According to some embodiments of this application, the optical sensing module further includes a serial data transmission pin SD IO, which is used to transmit data.

[0108] It should be noted that the optical sensing module also includes a serial data transmission pin, SD IO, for data transmission. This enables the optical sensing module to send acquired image data or other information serially to the control unit or other external devices, achieving efficient data transmission.

[0109] According to some embodiments of this application, the optical sensing module further includes a serial clock pin SCLK, which is used to receive a clock signal.

[0110] It should be noted that the serial clock pin SCLK is used to input the clock signal, which is crucial for synchronizing data transmission and ensuring data integrity. The clock signal provides a time reference for data transmission, ensuring that data is sent and received at the correct time.

[0111] According to some embodiments of this application, the optical sensing module further includes a motion wake-up pin MOTSWK, which is used to wake up the optical sensing module when motion is detected (i.e., a MOT ION signal).

[0112] It's worth noting that the Motion Wake-up (MOTSWK) pin is another important feature of the optical sensing module. It's used to wake the module when motion is detected. This design significantly reduces the power consumption of the optical sensing module when it's stationary, as it can be in low-power or sleep mode when there's no motion. Once motion is detected, the MOTSWK pin triggers the optical sensing module to wake up and begin acquiring and processing image data.

[0113] It should be noted that resistors R54, R70, and R71 can be used for certain pins in pull-up or pull-down circuits to ensure that the pins are in a known state when there is no signal. R54 and R70 can be jumpers or very small resistors, which can be used for configuration or debugging. SCLK, SD IO, MISO, and NCS are interface pins for connecting to external microcontrollers or other logic circuits for data communication and control.

[0114] In summary, the optical sensing modules in these embodiments are designed with power stability, signal integrity, and low power consumption in mind, and achieve high-performance optical displacement detection through carefully designed pins and circuits.

[0115] In some embodiments of this application, the control unit is designed to dynamically adjust the impedance of the dimming actuator based on the operating state of the light-emitting element, thereby achieving precise control over the brightness of the light-emitting element. This design allows the dimming actuator to automatically adjust the brightness of the light-emitting element under different lighting conditions to meet the needs of different surfaces.

[0116] According to some embodiments of this application, the control unit is configured to: when the light-emitting element detection subunit detects that the conduction time of the light-emitting element exceeds a first threshold, adjust the impedance of the dimming execution unit through the current-limiting controlled terminal to increase the current flowing through the light-emitting element.

[0117] It should be noted that when the light-emitting element detection subunit detects that the conduction time of the light-emitting element exceeds a first threshold, it may mean that the current light intensity is insufficient to form a clear image on a specific surface. In this case, the control unit adjusts the impedance of the dimming execution unit through the current-limiting controlled terminal to increase the current flowing through the light-emitting element. This increases the brightness of the light-emitting element, thereby providing sufficient illumination on the surface with insufficient light intensity, ensuring that the optical sensing module can capture a clear image.

[0118] According to some embodiments of this application, the control unit is configured to: when the light-emitting element detection subunit detects that the conduction time of the light-emitting element is lower than a second threshold, adjust the impedance of the dimming execution unit through the current-limiting controlled terminal to reduce the current flowing through the light-emitting element.

[0119] It should be noted that if the light-emitting element detection subunit detects that the conduction time of the light-emitting element is lower than the second threshold, this may indicate that the current light intensity is excessive, potentially leading to overexposed images on certain surfaces. To address this issue, the control unit adjusts the impedance of the dimming execution unit via the current-limiting controlled terminal to reduce the current flowing through the light-emitting element. This reduces the brightness of the light-emitting element, decreases the light intensity, and prevents overexposed images from forming on surfaces with excessive light.

[0120] Reference Figure 5 In the embodiments of this application, the control unit monitors the on-time of the light-emitting element and compares it with a preset threshold, intelligently adjusting the resistance value of the current-limiting resistor to ensure that the optical sensing module obtains an appropriate amount of light when acquiring images. This process involves two key thresholds: a first threshold and a second threshold, which correspond to insufficient light and excessive light, respectively.

[0121] When the on-time of the light-emitting element exceeds a preset first threshold, it indicates that the optical sensing module receives insufficient light during image acquisition, potentially leading to underexposure and difficulty in discerning details. To address this issue, the control unit activates the second current-limiting resistor, connecting it in parallel with the first. The reduced total resistance after parallel connection increases the current flowing through the light-emitting element, thereby increasing the amount of light received by the optical sensing module and ensuring sufficient brightness during image acquisition, thus preventing underexposure.

[0122] Conversely, when the on-time of the light-emitting element is lower than a preset second threshold, it indicates that the optical sensing module is receiving too much light during image acquisition, which may lead to overexposure and loss of detail. In this case, the control unit will switch off the second current-limiting resistor, restoring its resistance to the value of the first current-limiting resistor, thereby reducing the current flowing through the light-emitting element. This reduces the amount of light received by the optical sensing module during image acquisition, preventing overexposure and ensuring image clarity and accuracy.

[0123] Through this intelligent adjustment mechanism, the brightness adjustment unit can automatically adjust the brightness of the light-emitting element according to actual lighting conditions, providing suitable light source brightness on both light and dark surfaces, thereby improving the accuracy of image acquisition and the usability of the mouse. This design not only enhances the performance of the brightness adjustment unit but also provides users with a more stable and reliable user experience. The automatic adjustment mechanism allows the brightness adjustment unit to maintain optimal working conditions under different lighting environments without requiring manual adjustment by the user, thus improving the convenience of the user experience. Furthermore, this design also helps reduce the power consumption of the brightness adjustment unit because it dynamically adjusts the brightness according to actual needs, avoiding unnecessary energy waste.

[0124] The optical mouse of this application embodiment may include any of the brightness adjustment units corresponding to the embodiments of this application.

[0125] Reference Figure 6 In some embodiments, the optical mouse may include a circuit board, an optical sensing module, a control unit, a light-emitting element, and a lens assembly. The circuit board includes a power connection port, a dimming execution unit, and a first current-limiting resistor, and is connected to the optical sensing module, the control unit, and the light-emitting element to form the brightness adjustment unit in this embodiment.

[0126] The circuit board, as the basic structure of the optical mouse, houses key electronic components such as the power connection port, dimming actuator, and first current-limiting resistor. The power connection port provides a stable power supply to the entire mouse, ensuring the proper functioning of all components. The dimming actuator controls the current flowing through the light-emitting element; by adjusting the resistance of the current-limiting resistor, the brightness of the light-emitting element can be dynamically adjusted to adapt to different lighting conditions.

[0127] The optical sensor module is the core component of an optical mouse. It is responsible for receiving the light emitted by the light-emitting element. This light is focused and adjusted by the lens assembly and then shines onto the surface on the bottom of the mouse. When the mouse moves, the light reflected from the surface changes. The optical sensor module captures these changes and converts them into electrical signals to determine the direction and speed of the mouse's movement.

[0128] The control unit is the intelligent control center of the optical mouse. It receives and processes signals from the optical sensing module to determine the mouse's movement status. Furthermore, the control unit is connected to the dimming execution unit, which intelligently adjusts the resistance value of the current-limiting resistor based on the amount of light received by the optical sensing module and feedback from the light-emitting element detection subunit, thereby achieving precise control over the brightness of the light-emitting element.

[0129] The light-emitting element, which can be an LED, emits light under the control of the control unit. This light is focused by a lens assembly to form a uniform beam that illuminates the surface on the bottom of the mouse. The lens assembly design ensures efficient light propagation and focusing, improving the image quality received by the optical sensing module.

[0130] In summary, the optical mice in these embodiments achieve efficient optical displacement detection through a carefully designed circuit board, optical sensing module, control unit, light-emitting element, and lens assembly. This design not only improves the performance of the optical mouse but also provides users with a more stable and reliable user experience. The automatic adjustment mechanism allows the optical mouse to maintain optimal working conditions under different lighting environments without requiring manual adjustments by the user, thereby improving user convenience. Furthermore, this design helps reduce the power consumption of the optical mouse because it dynamically adjusts the brightness according to actual needs, avoiding unnecessary energy waste.

[0131] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in this disclosure and the foregoing drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “including,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a product or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or apparatuses.

[0132] It should be understood that in this disclosure, "at least one item" means one or more, and "more than one" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0133] It should be understood that in the description of the embodiments of this application, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0134] In the several embodiments provided in this disclosure, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0135] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0136] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0137] It should also be understood that the various implementation methods provided in this application can be combined arbitrarily to achieve different technical effects.

[0138] The above is a detailed description of the embodiments of this disclosure. However, this disclosure is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this disclosure. All such equivalent modifications or substitutions are included within the scope defined by the claims of this disclosure.

Claims

1. An intelligent dimming optical mouse, characterized in that, include: The housing has a through hole at its bottom; A light-emitting element is fixedly disposed inside the housing. When the light-emitting element emits light, it emits light through the through hole to the placement surface of the mouse, so that the optical sensing module can collect the image of the placement surface. A brightness adjustment unit is fixedly installed inside the housing. The brightness adjustment unit includes an optical sensing module, a control unit, and a dimming execution unit. The optical sensing module is used to detect the amount of light illuminating the placement surface by the light-emitting element; The control unit is used to generate a light modulation signal according to the light intensity; The dimming execution unit is electrically connected to the light-emitting element and is used to adjust the amount of light illuminating the placement surface by the light-emitting element according to the light adjustment signal.

2. The mouse according to claim 1, characterized in that, The brightness adjustment unit also includes a power connection port, a first current limiting resistor, and a light-emitting element detection subunit; The power connection port is used to connect to an external power source; One end of the first current-limiting resistor is connected to the power connection port, and the other end of the first current-limiting resistor is connected to the positive terminal of the light-emitting element. The light-emitting element is connected to the optical sensing module via the negative terminal. The dimming execution unit includes a current-limiting controlled terminal, a first current-limiting adjustment terminal, and a second current-limiting adjustment terminal; wherein, the dimming execution unit is connected in parallel across the two ends of the first current-limiting resistor via the first current-limiting adjustment terminal and the second current-limiting adjustment terminal; The control unit includes a current limiting control terminal and a light emission detection terminal; wherein, the current limiting control terminal is connected to the current limiting controlled terminal, and the light emission detection terminal is connected between the light emission element and the optical sensing module through the light emission element detection subunit.

3. The mouse according to claim 1, characterized in that, The optical sensing module includes a component access pin, a power supply pin, and a ground pin; wherein, the component access pin is connected to the negative terminal of the light-emitting element, the power supply pin is used to connect to an external power supply, and the ground pin is used to ground.

4. The mouse according to claim 3, characterized in that, The optical sensing module also includes an analog power supply pin, which is used to connect to an external power supply through a power supply branch, and the analog power supply pin is used to connect to an external ground wire through a grounding branch. A first decoupling capacitor is provided in the grounding branch. One end of the first decoupling capacitor is connected to the analog power supply pin, and the other end of the first decoupling capacitor is used for grounding. The first decoupling capacitor is used for the grounding line, and a second decoupling capacitor and a third decoupling capacitor are connected in parallel with the power supply branch.

5. The mouse according to claim 3, characterized in that, The optical sensing module further includes a serial data transmission pin, a serial clock pin, and a motion wake-up pin; wherein, the serial data transmission pin is used to transmit data, the serial clock pin is used to receive a clock signal, and the motion wake-up pin is used to wake up the optical sensing module when motion is detected.

6. The mouse according to claim 2, characterized in that, The dimming execution unit includes a resistor switch control module, a switching transistor, and a second current limiting resistor; wherein, the switching transistor includes a switch control terminal, a current input terminal, and a current output terminal; The current limiting controlled terminal is connected to the switch control terminal through the resistor switch control module; The current input terminal is connected to the first current limiting adjustment terminal; The current output terminal is connected to the second current limiting adjustment terminal through the second current limiting resistor.

7. The mouse according to claim 1, characterized in that, The dimming execution unit includes a variable resistor, which is used to adjust the amount of light illuminating the placement surface by the light-emitting element according to the light adjustment signal.

8. The mouse according to claim 1, characterized in that, The control unit includes a dynamic current generation subunit, which is used to generate a dynamic current as the light modulation signal based on the light intensity.

9. The mouse according to claim 2 or claim 6, characterized in that, The control unit is configured to, when the light-emitting element detection subunit detects that the conduction time of the light-emitting element exceeds a first threshold, adjust the impedance of the dimming execution unit through the current-limiting controlled terminal to increase the current flowing through the light-emitting element.

10. The mouse according to claim 2 or claim 6, characterized in that, The control unit is configured to: when the light-emitting element detection subunit detects that the conduction time of the light-emitting element is lower than a second threshold, adjust the impedance of the dimming execution unit through the current-limiting controlled terminal to reduce the current flowing through the light-emitting element.

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