Keyboard device

Abstract

The utility model relates to the technical field of computer peripherals, in particular to a keyboard device, which is connected with a target computer and comprises a keyboard module, a transceiver MCU (Microprogrammed Control Unit), a radio frequency cable and an antenna module, the transceiver MCU is arranged in a first position of the keyboard module; the antenna module is arranged in a first keycap of the keyboard module; one end of the radio frequency cable is connected to the first interface of the transceiver MCU, and the other end of the radio frequency cable is connected to the antenna module; and the second interface of the transceiver MCU is connected with the main board of the target computer. The wireless keyboard and mouse transceiver solves the problem that an external wireless keyboard and mouse transceiver is easy to lose and occupies a USB port of a host.

Description

Technical Field

[0001] The utility model relates to the technical field of computer peripherals, in particular to a keyboard device. Background Art

[0002] With the rapid development of computer technology, wireless keyboards have become popular among users due to their convenience. However, traditional 2.4G wireless keyboards and mice still have many design drawbacks, which seriously restrict the further improvement of user experience.

[0003] External wireless keyboard and mouse transceivers are easily lost, causing inconvenience for users and adding additional costs. Traditional wireless keyboard and mouse transceivers typically require a USB port on the host computer for connection, which is particularly inconvenient for PCs such as laptops. As product designs become increasingly thinner and lighter, the number of USB ports is gradually decreasing, leading to a shortage of USB port resources. The ceramic antennas used in transceiver antennas have certain limitations in wireless performance, resulting in a relatively short effective range. In a dual USB port environment, especially when the USB 3.0 port and the wireless keyboard and mouse transceiver are used simultaneously, the high-frequency noise generated by the USB 3.0 port can seriously interfere with wireless signal transmission, causing the wireless keyboard and mouse to degrade in performance or even become unusable.

[0004] While related design solutions have improved to some extent, the results have been less than ideal. For example, making the transceiver smaller reduces weight and size, but also increases the risk of loss. Physically increasing the distance between the transceiver and the USB 3.0 interface to reduce noise crosstalk has had limited improvement and fails to fundamentally resolve the problem.

[0005] In view of this, it is necessary to propose a more advanced and effective keyboard device integrating a 2.4G wireless transceiver. Utility Model Content

[0006] In view of this, the present invention provides a keyboard device to solve the problems of an external wireless keyboard and mouse transceiver being easily lost, occupying a host USB port, and causing USB 3.0 noise crosstalk.

[0007] In the first aspect, the present invention provides a keyboard device, which is connected to a target computer. The device includes: a keyboard module, a transceiver MCU, a radio frequency cable and an antenna module; the transceiver MCU is built into the first position of the keyboard module; the antenna module is built into the first keycap of the keyboard module; one end of the radio frequency cable is connected to the first interface of the transceiver MCU, and the other end is connected to the antenna module; the second interface of the transceiver MCU is connected to the motherboard of the target computer.

[0008] In an optional embodiment, a Power module is built into the first position of the mainboard; a PWM signal module is built into the second position of the mainboard; the Power module provides a power signal; and the PWM signal module provides a PWM signal.

[0009] In an optional implementation, the Power module is connected to the second interface of the transceiver MCU via the first interface of the mainboard; the PWM signal module is connected to the second interface of the transceiver MCU via the second interface of the mainboard.

[0010] In an optional implementation, the antenna module is built into the space bar of the keyboard module.

[0011] In an optional implementation, the antenna module is a Pifa antenna.

[0012] The keyboard device provided by the present invention is connected to the target computer and is composed of: a keyboard module, a transceiver MCU, a radio frequency cable, and an antenna module. The transceiver MCU is built into a specific position of the keyboard module; the antenna module is inside the first keycap of the keyboard module. One end of the radio frequency cable is connected to the dedicated interface of the transceiver MCU, and the other end is connected to the antenna module. In addition, the transceiver MCU is also equipped with a second interface, which is connected to the motherboard of the target computer. The keyboard device provided by the present invention can effectively prevent the loss of the transceiver, has better performance, saves the occupancy of the USB port, greatly improves the antenna's anti-noise capability, and enhances the performance of the wireless keyboard and mouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a structural block diagram of a keyboard device according to an embodiment of the present utility model;

[0015] Figure 2 2 is a schematic diagram of signal transmission according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0016] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0017] The embodiment of the present utility model provides a keyboard device, which realizes the integrated design of wireless keyboard and mouse transceiver by integrating a 2.4G wireless transceiver MCU into the keyboard module and connecting it with a high-performance Pifa antenna module built into the keycap in combination with a radio frequency cable.

[0018] In this embodiment, a keyboard device is provided. Figure 1 This is a structural block diagram of a keyboard device according to an embodiment of the present utility model. Figure 1 As shown, the keyboard device is connected to the target computer, and the device includes: a keyboard module 101, a transceiver MCU 102, a radio frequency cable 103 and an antenna module 104; the transceiver MCU 102 is built into the keyboard module 101 position (1); the antenna module 104 is built into the keycap (2) of the keyboard module 101; one end of the radio frequency cable 103 is connected to the first interface of the transceiver MCU 102, and the other end is connected to the antenna module 104; the second interface of the transceiver MCU 102 is connected to the motherboard of the target computer.

[0019] Furthermore, the transceiver MCU may be a 2.4G transceiver MCU.

[0020] Specifically, the keyboard module, as the main part, is responsible for user input functions and has a built-in 2.4G wireless transceiver MCU. This built-in design avoids the loss of the transceiver and reduces the occupancy of USB ports, especially for laptops with fewer USB interfaces. The 2.4G transceiver MCU is a microcontroller unit with integrated 2.4GHz wireless transceiver functions. It can complete various digital processing tasks and control operations that traditional microcontrollers have. It also has a 2.4GHz frequency band wireless transceiver module that can directly send and receive wireless signals. Built into the keyboard module, it is responsible for processing the encoding, decoding and transmission control of wireless signals. The built-in design of the 2.4G transceiver MCU effectively avoids the risk of transceiver loss and reduces dependence on external USB ports. The RF cable serves as the physical medium connecting the transceiver MCU and the antenna module to ensure efficient and stable transmission of signals between the two.

[0021] In some optional implementations, the antenna module 104 is built into the space bar of the keyboard module 101 .

[0022] Furthermore, the antenna module is a Pifa antenna. This antenna outperforms ceramic antennas while also minimizing crosstalk from USB 3.0 noise, significantly extending the usable range. For example, in laptops, the spacebar area typically has ample space for the antenna module and is less susceptible to direct user contact, thus preventing interference with signal transmission. Furthermore, the spacebar area is typically an area of ​​the keyboard less covered by metal components, so using plastic or other non-metallic materials improves signal transmission efficiency and prevents signal shielding by the laptop's metal structure.

[0023] In some optional implementations, a Power module is built into the first position of the mainboard; a PWM signal module is built into the second position of the mainboard; the Power module provides a power signal; and the PWM signal module provides a PWM signal.

[0024] Optionally, the Power module can provide a 3.3V power signal.

[0025] Specifically, the power module is responsible for providing a stable power signal for the entire keyboard device. It receives power from the target computer's mainboard and converts it into a power signal suitable for the keyboard device's internal components. The power module ensures the continuous and stable operation of the transceiver MCU and antenna module. The power module boasts efficient power conversion capabilities and excellent stability, outputting a stable voltage for internal circuitry. The PWM signal module (pulse width modulation signal module) is responsible for providing control signals for the keyboard device. PWM signals are an analog signal control technology that simulates voltage changes by varying the pulse width (duty cycle), thereby achieving circuit control. In the keyboard device, the PWM signal module can adjust the signal's duty cycle as needed to achieve precise control of the transceiver MCU. The PWM signal module features high precision, adjustability, and programmability. It generates the desired PWM waveform based on preset parameters or external input signals, achieving precise circuit control.

[0026] In some optional implementations, the Power module is connected to the second interface of the transceiver MCU through the first interface of the mainboard; the PWM signal module is connected to the second interface of the transceiver MCU through the second interface of the mainboard.

[0027] Specifically, the power module and PWM signal module are connected to the transceiver MCU through dedicated interfaces on the motherboard, using standardized connection methods such as USB or PCIe interfaces to ensure accurate transmission of power signals and control signals.

[0028] Signal transmission such as Figure 2As shown, the power or PWM signal module is connected to the transceiver MCU through the PC motherboard, providing power or control signals. The transceiver MCU is built into the keyboard module, and the antenna module is connected to the transceiver MCU, forming a complete signal transmission path. This shows the signal transmission process from the power / PWM signal to the transceiver MCU and then to the antenna module.

[0029] The utility model designs a highly integrated 2.4G wireless transceiver keyboard device, which integrates the transceiver MCU, radio frequency cable and antenna module inside the keyboard, realizing the efficient transmission of wireless signals and the integration of user input functions.

[0030] The keyboard module retains all the function keys and layout of the traditional keyboard to realize the user input function. The transceiver MCU is built into the first position of the keyboard module, responsible for the encoding, decoding, sending and receiving of wireless signals, and is the key to realizing wireless communication. In order to improve the efficiency of signal transmission, the antenna module is built into the first keycap of the keyboard module. In this embodiment, the space bar is specially selected as the location of the built-in antenna module to reduce the impact on user use, and make full use of the space and non-metallic material properties of the space bar area. The space inside the space bar is large enough to accommodate the antenna module without affecting the normal use of the keyboard; at the same time, the non-metallic material helps to reduce interference and shielding during signal transmission, and improve the stability and transmission distance of the signal. The RF cable serves as the physical medium connecting the transceiver MCU and the antenna module. One end of the RF cable is tightly connected to the first interface of the transceiver MCU, and the other end is seamlessly connected to the antenna module.

[0031] The transceiver MCU's second interface connects to the target computer's motherboard via an appropriate connection method (such as USB or PCIe), enabling bidirectional data transmission and control signal reception. The motherboard's built-in power module and PWM signal module provide stable power and control signals, respectively. These modules connect to the transceiver MCU via standardized interfaces, ensuring the operation and control of the entire keyboard device.

[0032] In summary, this utility model achieves efficient wireless signal transmission and seamless integration of user input functions. It not only solves the problem of traditional external wireless keyboard and mouse transceivers being easily lost and occupying USB ports, but also improves the transmission efficiency and stability of wireless signals, providing users with a more convenient and efficient user experience.

Claims

1. A keyboard device, characterized in that: The keyboard device is connected to the target computer, and the device includes: a keyboard module, a transceiver MCU, a radio frequency cable and an antenna module; The transceiver MCU is built into the first position of the keyboard module; the antenna module is built into the first keycap of the keyboard module; The radio frequency cable has one end connected to the first interface of the transceiver MCU and the other end connected to the antenna module; The second interface of the transceiver MCU is connected to the mainboard of the target computer.

2. The device according to claim 1, characterized in that A power module is built into the first position of the mainboard; a PWM signal module is built into the second position of the mainboard; The Power module provides a power signal; The PWM signal module provides a PWM signal.

3. The device according to claim 2, characterized in that The Power module is connected to the second interface of the transceiver MCU through the first interface of the mainboard; The PWM signal module is connected to the second interface of the transceiver MCU through the second interface of the mainboard.

4. The device according to claim 1, characterized in that The antenna module is built into the space bar of the keyboard module.

5. The device according to claim 4, characterized in that The antenna module is a Pifa antenna.

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