Multifunctional keyboard system

Abstract

The utility model provides a multifunctional keyboard system which comprises an audio interface module, a universal serial bus (USB) keyboard module and a USB concentrator, and the USB concentrator is respectively connected with a USB HUB interface used for being connected with a computer, the audio interface module used for being connected with different external devices and the USB keyboard module used for collecting keyboard data. The audio interface module comprises a USB digital interface 1 connected with the USB concentrator, the USB digital interface 1 is connected with an audio router, and the audio router is respectively connected with a plurality of external devices. The computer can be directly communicated with radio equipment or broadcasting equipment, so that the audio quality of the computer is ensured, and the computer can be conveniently and directly used for making music or videos.

Description

Technical Field

[0001] The utility model relates to the technical field of keyboards, in particular to a multifunctional keyboard system. Background Art

[0002] Conventional computer keyboards lack audio playback or reception capabilities. Users who use computers to watch videos, listen to music, or create music or videos must connect headphones, microphones, or other devices to the computer to listen to music and record audio. However, the sound card within the PC is prone to interference, and the output and received audio is prone to noise. For users who use computers to create music or videos and have high audio quality requirements, they need to purchase additional recording equipment to record audio and then import the audio into the computer, which is complicated and costly.

[0003] Take video production as an example: users record audio and video using their phones, tablets, or cameras, then import the audio and video into their computers to create music or videos. Once the music or video is complete, they import it back into their phones or tablets to check the results and upload it online. This process is complex and inefficient. Utility Model Content

[0004] In view of this, the problem to be solved by the present invention is to provide a multifunctional keyboard system that can be directly connected to a radio or broadcasting device to ensure the audio quality of the computer and facilitate the direct use of the computer to produce music or video.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A multifunctional keyboard system includes an audio interface module, a USB keyboard module and a USB hub. The USB hub is respectively connected to a USB HUB interface for accessing a computer, an audio interface module for connecting to different external devices, and a USB keyboard module for collecting keyboard data.

[0007] The audio interface module includes a USB digital interface 1 connected to a USB hub, the USB digital interface 1 is connected to an audio router, and the audio router is connected to a plurality of external devices respectively.

[0008] Furthermore, the USB keyboard module includes a keyboard scan matrix, and the keyboard scan matrix is ​​connected to the USB hub via the processing chip MCU1.

[0009] Furthermore, the audio router and the USB digital interface 1 are both connected to a control chip MCU2, and the control chip MCU2 is respectively connected to a display module for displaying audio data and a key module for controlling different external devices to access the audio interface module.

[0010] Furthermore, the audio router is connected to a digital-to-analog converter DAC, the digital-to-analog converter DAC is respectively connected to a headphone power amplifier and a line amplifier, the headphone power amplifier is connected to a headphone device via a headphone interface, and the line amplifier is connected to an audio playback device via an output interface.

[0011] Furthermore, the audio router is connected to an analog-to-digital converter ADC, the analog-to-digital converter ADC is used to connect to a microphone amplifier, and the microphone amplifier is connected to an audio input device through an input interface.

[0012] Furthermore, the audio router is connected to the USB digital interface 2 via the audio sampling rate converter ASRC1 and the audio sampling rate converter ASRC2 respectively, and the USB digital interface 2 is connected to the mobile phone or tablet via the Type-C OTG interface.

[0013] Furthermore, the USB hub is connected to a Type-C USB interface for accessing other USB devices.

[0014] Furthermore, the keyboard system includes a power supply module for supplying power to the system, and the power supply module is connected to the Type-C power supply interface.

[0015] The advantages and positive effects of the utility model are:

[0016] By setting up a USB hub, the USB keyboard module and the audio interface module can be connected to the computer together to achieve the function of compatible transmission of audio data.

[0017] The audio interface module is equipped with a USB digital interface 1, an audio router and a control chip MCU2. The audio router is connected to different external devices respectively. The control chip MCU2 controls the action of the audio router to connect different external devices to the computer, thereby realizing the uploading or downloading of audio data.

[0018] By setting up a Type-C USB interface connected to a USB hub, other external devices with USB interfaces can be connected to the computer to upload or download video or audio. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is an overall system structure diagram of a multifunctional keyboard system of the present utility model;

[0021] Figure 2This is a main view of a multifunctional keyboard of the utility model;

[0022] In the picture: 1. Display screen; 2. Control buttons. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The utility model provides a multifunctional keyboard system, such as Figure 1 As shown, the device includes an audio interface module, a USB keyboard module, a USB hub, and a USB HUB interface. The USB hub connects to the audio interface module, USB keyboard module, and USB HUB interface, respectively. The audio interface module is used to connect to various external devices to receive or output audio data; the USB keyboard module is used to receive and output keyboard data, and the USB HUB interface is used to connect to a computer host. Both the audio interface module and the USB keyboard module communicate with the computer through the USB hub.

[0027] The USB hub is connected to a Type-C USB port for accessing other USB devices, enabling communication between other USB devices and the computer. In one embodiment of the present application, the other USB device may be a camera or a USB memory device that can upload video data or audio data to the computer. The keyboard system also includes a power supply module for supplying power to the system. The power supply module is connected to the Type-C power supply port and is used when a USB port such as a USB hub port or a Type-C USB port is insufficiently powered.

[0028] The USB keyboard module includes a keyboard scan matrix and a processing chip, MCU1. The USB hub connects to the keyboard scan matrix through MCU1. The keyboard scan matrix receives keyboard keystroke data, and the processing chip, MCU1, receives the keystroke data and returns the parsed data. The parsed data is then transmitted to the computer via the USB hub and USB HUB interface, ensuring the normal function of the keyboard.

[0029] The audio interface module includes a USB digital interface 1 and an audio router, which are connected to each other. The USB digital interface 1 is connected to a USB hub, which is then connected to the audio router. Both the USB digital interface 1 and the audio router are connected to a control chip, MCU2. MCU2 controls the operation of the audio router and USB digital interface 1, enabling the USB digital interface 1 to communicate with various external devices through the audio router and controlling audio input and output.

[0030] The control chip MCU2 is connected to the display module and the key module respectively. The key module is used to adjust or change the external device connected to the audio interface module, and the display module is used to display the audio status and the external device in the connected state. Figure 2 As shown, the keyboard is provided with a display screen 1 and several control keys 2.

[0031] In one embodiment of the present application, an audio router is connected to a digital-to-analog converter (DAC), which is respectively connected to a headphone power amplifier or a line amplifier. The headphone power amplifier is connected to a headphone device via a headphone jack, and the line amplifier is connected to an audio playback device via an output jack. The audio playback device may be a speaker that plays audio.

[0032] When using headphones, the user manually adjusts the key module to connect the headphones to the audio interface module. The USB digital interface 1 is connected to the digital-to-analog converter (DAC) via the audio router. The DAC converts digital signals into analog signals. The digital signal output from the computer passes through the USB hub, USB digital interface 1, audio router, DAC, and finally the headphones, achieving audio playback. The keyboard's hardware components are unaffected by the host computer, ensuring high-quality audio playback.

[0033] In one embodiment of the present application, an audio router is connected to an analog-to-digital converter (ADC), which is connected to a microphone amplifier. The microphone amplifier is connected to an audio input device via an input interface. The audio input device can be a microphone, guitar, or other device that outputs analog audio signals.

[0034] When recording with a guitar, the user manually adjusts the key module to connect the microphone to the audio interface module. USB digital interface 1 connects to the analog-to-digital converter (ADC) via the audio router. The microphone receives the audio and converts it into an analog signal. The ADC converts the analog signal into a digital signal, which then passes through the audio router, USB digital interface 1, USB hub, and finally the computer, achieving audio reception. The keyboard's hardware is unaffected by the host computer, ensuring high-quality audio reception.

[0035] In one embodiment of the present application, an audio router is connected to a USB digital interface 2 via an audio sampling rate converter ASRC1 and an audio sampling rate converter ASRC2, respectively, and USB digital interface 2 is connected to a mobile phone or tablet via a Type-C OTG interface. This enables audio transmission between a computer and a mobile phone, or between a computer and a tablet. USB digital interface 2 is used to connect a mobile phone or tablet to an audio interface module to enable information exchange with the computer; audio sampling rate converters ASRC1 or ASRC2 are used to adjust the sampling frequency of audio data output by the mobile phone, computer, or tablet to ensure that the mobile phone, computer, or tablet can accurately capture audio data.

[0036] Take the transmission between a computer and a mobile phone as an example: the audio data sent by the computer passes through the USB hub-USB digital interface 1-audio router-audio sampling rate converter ASRC1-USB digital interface 2-mobile phone in sequence, and the audio data uploaded by the mobile phone passes through USB digital interface 2-audio sampling rate converter ASRC2-audio router-USB digital interface 1-USB hub-computer in sequence.

[0037] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A multifunctional keyboard system, characterized in that: It includes an audio interface module, a USB keyboard module and a USB hub, wherein the USB hub is respectively connected to a USB HUB interface for accessing a computer, an audio interface module for connecting different external devices and a USB keyboard module for collecting keyboard data; The audio interface module includes a USB digital interface 1 connected to a USB hub, the USB digital interface 1 is connected to an audio router, and the audio router is connected to several external devices respectively.

2. A multifunctional keyboard system according to claim 1, characterized in that: The USB keyboard module includes a keyboard scan matrix, which is connected to the USB hub via a processing chip MCU1.

3. The multifunctional keyboard system according to claim 1, characterized in that: The audio router and the USB digital interface 1 are both connected to a control chip MCU2, and the control chip MCU2 is respectively connected to a display module for displaying audio data and a key module for controlling different external devices to access the audio interface module.

4. The multifunctional keyboard system according to claim 1, characterized in that: The audio router is connected to a digital-to-analog converter DAC, the digital-to-analog converter DAC is respectively connected to a headphone power amplifier and a line amplifier, the headphone power amplifier is connected to a headphone device through a headphone interface, and the line amplifier is connected to an audio playback device through an output interface.

5. The multifunctional keyboard system according to claim 1, characterized in that: The audio router is connected to an analog-to-digital converter ADC, the analog-to-digital converter ADC is used to be connected to a microphone amplifier, and the microphone amplifier is connected to an audio input device through an input interface.

6. The multifunctional keyboard system according to claim 1, characterized in that: The audio router is connected to the USB digital interface 2 via the audio sampling rate converter ASRC1 and the audio sampling rate converter ASRC2 respectively, and the USB digital interface 2 is connected to the mobile phone or tablet via the Type-C OTG interface.

7. The multifunctional keyboard system according to claim 1, characterized in that: The USB hub is connected to a Type-C USB interface for accessing other USB devices.

8. The multifunctional keyboard system according to claim 1, characterized in that: The keyboard system includes a power supply module for supplying power to the system, and the power supply module is connected to a Type-C power supply interface.

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