TW202001476A - Socket of far-field voice receiving and playback for mobile device - Google Patents

Abstract

The present invention discloses a socket of far-field voice receiving and playback for a mobile device. The mobile device comprises a first connection portion. The socket comprises a second connection portion, a digital to analog converter, a power amplifier, a speaker, a microphone array, a voice digital signal processor, and a power supply. The second connection portion is used for connecting with the first connection portion. The digital to analog converter is used for receiving a digital audio signal of the mobile device and converting the digital audio signal into an analog audio signal. The power amplifier is used for amplifying the analog audio signal. The speaker is used for converting the analog audio signal to a voice output. The microphone array is used for receiving a voice input and converting the voice input into a voice receiving signal. The voice digital signal processor is used for processing the voice receiving signal and transmitting the voice receiving signal to the mobile device.

Description

Expansion base for remote field radio and playback of mobile devices

The present invention relates to a docking station, and particularly to a docking station for mobile devices.

Current mobile devices, such as smartphones, have slowly begun to be equipped with artificial intelligence (Artificial Intelligence, AI), but due to internal space limitations, most smartphones have poor microphone hardware performance and can only do so Near-field voice control. Far-field (far-field) people's voice commands cannot be clearly received by smart phones, which further leads to artificial intelligence being unable to have more applications on smart phones.

The purpose of the present invention is to provide a docking station that provides far-field radio reception and playback for mobile devices, which can allow the mobile device to perform far-field voice processing and sound playback, and can be further applied to network communication software (eg Line, Wechat) as Use of amplifier and radio microphone when meeting.

In order to achieve the above or other objects, the present invention provides a docking station that provides far-field radio reception and playback for mobile devices. The mobile device includes a first connection part. The docking station includes a second connection part, a digital to analog converter (DAC), a power amplifier, a speaker, a microphone array, a voice digital signal processor (DSP) and a Power Supplier. The second connecting portion is used to connect to the first connecting portion. The digital-to-analog converter is connected to the second connection portion for receiving a digital audio source signal of the mobile device and converting the digital audio source signal to an analog audio source signal. The power amplifier is connected to the digital-to-analog converter for amplifying the analog audio signal. The speaker is connected to the power amplifier and used to convert the analog audio signal into a sound output. The microphone array is used to receive a voice input and convert the voice input into a radio signal. The voice digital signal processor is respectively connected to the microphone array and the second connection part, and is used for processing the radio signal and transmitting the radio signal to the mobile device. The power supply is connected to the second connection part, the digital-to-analog converter, the power amplifier, the microphone array, and the voice digital signal processor to provide power.

In one embodiment, the docking station further includes a hub. The hub is connected to the second connection part, the digital-to-analog converter, the voice-to-digital signal processor, and the power supply for receiving the digital audio signal of the mobile device and transmitting it to the digital-to-analog converter, and The radio signal of the voice digital signal processor is received and sent to the mobile device.

In one embodiment, the hub is a Universal Serial Bus (USB) hub.

In one embodiment, the power supply includes an AC to DC converter and a DC voltage converter. The AC to DC converter is connected to the DC voltage converter and the power amplifier, and is used to convert AC power to DC power. The DC voltage converter is connected to the second connection part, the digital analog converter, the microphone array and the voice digital signal processor, and is used to convert the voltage level of the DC power.

In an embodiment, the first connection portion is a universal serial bus socket, and the second connection portion is a universal serial bus plug.

In an embodiment, the universal serial bus is a Type-C universal serial bus.

In an embodiment, the digital-to-analog converter is further connected to the voice digital signal processor, and is used to provide an echo cancellation signal (Acoustic Echo Cancelling, AEC) to the voice digital signal processor.

In one embodiment, the microphone array is a ring microphone array.

In one embodiment, the mobile device is a smartphone or a tablet.

In order to achieve the above-mentioned objects and effects, the technical means and structure adopted by the present invention, the following describes the features and functions of the preferred embodiments of the present invention in detail as follows to facilitate a complete understanding.

Please refer to FIG. 1 and FIG. 2 at the same time. FIG. 1 and FIG. 2 are respectively a perspective view and a block diagram of a preferred embodiment of the docking station providing far-field radio reception and playback of a mobile device of the present invention. The mobile device 1 includes a first connecting portion 11. The mobile device 1 is also called a handheld device, and is a computer device that is small enough to be held and operated, for example, it can have a touch screen or a small keyboard, and can include a smartphone, tablet computer, or portable game instrument. Wait, but not limited to this. Due to the limitation of internal space, the microphone hardware of most mobile devices 1 has poor radio reception performance and can only achieve near-field voice control.

The docking station 2 includes a housing 20, a second connecting portion 21, a digital analog converter 22, a power amplifier 23, a speaker 24, a microphone array 25, a voice digital signal processor 26 and a power supply 27 . In the docking station 2 shown in FIG. 1, a part of the housing 20 is presented in a transparent manner so as to show the components provided in the housing 20, such as the digital analog converter 22, the power amplifier 23, and the voice digital signal processing 26, and related circuit boards, flexible printed circuit (FPC), etc.

The second connecting portion 21 is used to connect to the first connecting portion 11, so as to connect the mobile device 1 and the docking station 2. The first connection portion 11 and the second connection portion 21 may be a USB socket and a USB plug, respectively, and use the data pins D+ and D- in the USB for digital audio transmission. Moreover, USB can use Type-C USB, etc., but it is not limited to this.

The digital-to-analog converter 22 is connected to the second connection portion 21 for receiving a digital audio signal from the mobile device 1 and converting the digital audio signal to an analog audio signal. Preferably, the digital-to-analog converter 22 is further connected to the voice digital signal processor 26 for providing an echo cancellation signal to the voice digital signal processor 26.

The power amplifier 23 is connected to the digital-to-analog converter 22 for amplifying the analog audio signal. The power amplifier 23 can increase the output power of the analog audio signal. Specifically, the power amplifier 23 can be combined into an amplifier circuit through a series of electronic components.

The speaker 24 is connected to the power amplifier 23 for converting the analog audio signal to a sound output. The speaker 24 is a transducer that can convert electronic signals into sound, and is used to receive the analog audio signal and convert it into the sound output.

The microphone array 25 is used to receive a voice input and convert the voice input into a radio signal. Preferably, the microphone array 25 is a ring-shaped microphone array, but it can also be linear, spherical, spiral, in-line, cross, flat, etc., which can be designed and adjusted according to the actual sound collection situation.

The voice digital signal processor 26 is respectively connected to the microphone array 25 and the second connection part 21 for processing the radio signal and transmitting the radio signal to the mobile device 1. The voice digital signal processor 26 is a fast and powerful microprocessor, which includes a fast mathematical operation function and can process the radio signal in real time.

The power supply 27 is connected to the second connection portion 21, the digital analog converter 22, the power amplifier 23, the microphone array 25 and the voice digital signal processor 26 for providing power. To further explain, the power supply 27 includes an AC-DC converter 271 and a DC-to-DC converter 272. The AC-to-DC converter 271 is connected to the DC-to-DC converter 272 and the power amplifier 23 for converting AC to DC. The DC voltage converter 272 is connected to the second connection portion 21, the digital analog converter 22, the microphone array 25 and the voice digital signal processor 26 for converting the voltage level of the DC power. In this embodiment, the DC voltage converter 272 converts DC power to 5V.

Furthermore, the docking station 2 further includes a hub 28. The hub 28 is connected to the second connection portion 21, the digital-to-analog converter 22, the voice digital signal processor 26 and the DC voltage converter 272 for receiving the digital audio signal of the mobile device 1 and sending it to The digital-to-analog converter 22 and the radio signal received by the voice digital signal processor 26 are transmitted to the mobile device 1. Preferably, the hub 28 is a USB hub.

Please refer to FIG. 3 and FIG. 4 at the same time. FIG. 3 and FIG. 4 are respectively a schematic diagram 1 and a schematic diagram 2 of a preferred embodiment of the docking station providing far-field radio reception and playback of a mobile device according to the present invention. When the docking station 2 of the present invention is to be used, the first connection portion 11 of the mobile device 1 must be connected to the second connection portion 21 of the docking station 2, so that the mobile device 1 and the docking station 2 are docked with each other Instead, power and/or signal transmission can be performed. In addition, the AC-to-DC converter 271 must be connected to the commercial power and the docking station 2 respectively. The AC power provided by the commercial power is converted into DC power by the AC-to-DC converter 271 to supply power to the docking station 2.

When the mobile device 1 plays sound, the digital-to-analog converter 22 receives the digital audio signal from the mobile device 1 and converts the digital audio signal to the analog audio signal. The power amplifier 23 receives the analog audio signal and is used to amplify the analog audio signal. The speaker 24 receives the amplified analog source signal, and is used to convert the analog source signal to the sound output, that is, to complete the sound playback.

When the mobile device 1 performs far-field sound collection, the microphone array 25 is used to receive a sound input and convert the sound input into the sound collection signal. After the voice digital signal processor 26 receives the radio signal, it is used to process the radio signal and send the radio signal to the mobile device 1 to complete the far-field radio signal.

With the docking station 2 of the present invention, the functions of the mobile device 1 can be expanded to achieve the effects of far-field radio and playback. If the mobile device 1 is equipped with voice artificial intelligence, such as Amazon AVS or voice recognition software, the present invention can be used as a smart speaker for far-field radio and playback effects, and can also be used as a network communication software (For example: Line, Wechat) It is used as an amplifier and radio microphone during conferences and meetings.

The above are only the preferred embodiments of the present invention, and the patent scope of the present invention is not limited thereby, so any simple modifications and equivalent structural changes using the description and drawings of the present invention should be included for the same reason. Within the scope of the patent of the present invention, it is jointly granted to Chen Ming.

1‧‧‧Mobile device 11‧‧‧First connection 2‧‧‧Expansion seat 20‧‧‧Housing 21‧‧‧Second connection 22‧‧‧Digital analog converter 23‧‧‧Power amplifier 24‧‧‧speaker 25‧‧‧ microphone array 26‧‧‧Voice digital signal processor 27‧‧‧Power supply 271‧‧‧AC to DC converter 272‧‧‧DC voltage converter 28‧‧‧Hub

1 is a perspective view of a preferred embodiment of the docking station providing far-field sound collection and playback of a mobile device according to the present invention; FIG. 2 is a block diagram of a preferred embodiment of a docking station providing far-field sound collection and playback of a mobile device according to the present invention; 3 is a schematic diagram 1 of a preferred embodiment of the docking station of the present invention that provides far-field radio and playback of mobile devices; and FIG. 4 is a schematic diagram of a preferred embodiment of the docking station of the present invention that provides far-field radio and playback of mobile devices two.

1‧‧‧Mobile device

11‧‧‧First connection

2‧‧‧Expansion seat

21‧‧‧Second connection

22‧‧‧Digital analog converter

23‧‧‧Power amplifier

24‧‧‧speaker

25‧‧‧ microphone array

26‧‧‧Voice digital signal processor

27‧‧‧Power supply

271‧‧‧AC to DC converter

272‧‧‧DC voltage converter

28‧‧‧Hub

Claims (9)

An docking station that provides far-field radio reception and playback for a mobile device. The mobile device includes a first connection portion. The docking station includes: a second connection portion for connecting to the first connection portion; a digital analog converter, Connected to the second connection part for receiving a digital audio signal of the mobile device and converting the digital audio signal into an analog audio signal; a power amplifier connected to the digital analog converter for amplifying the analog audio source Signal; a speaker connected to the power amplifier for converting the analog audio signal into a sound output; a microphone array for receiving a sound input and converting the sound input into a radio signal; a voice digital signal processor , Respectively connected to the microphone array and the second connection part, for processing the radio signal, and transmitting the radio signal to the mobile device; and a power supply, connected to the second connection part, the digital analog converter , The power amplifier, the microphone array and the voice digital signal processor are used to provide power. The docking station that provides far-field radio and playback of mobile devices as described in item 1 of the patent scope further includes a hub connected to the second connection portion, the digital analog converter, the voice digital signal processor, and the power supply The supplier is used to receive the digital audio source signal of the mobile device and send it to the digital analog converter, and receive the radio signal of the voice digital signal processor and send it to the mobile device. As described in item 2 of the scope of the patent application, a docking station that provides far-field radio and playback for mobile devices, where the hub is a universal serial bus hub. As described in item 1 of the scope of the patent application, a docking station providing far-field radio and playback for mobile devices, wherein the power supply includes an AC to DC converter and a DC voltage converter; the AC to DC converter is connected to the A DC voltage converter and the power amplifier are used to convert AC power into DC power; the DC voltage converter is connected to the second connection part, the digital analog converter, the microphone array and the voice digital signal processor for conversion DC voltage level. As described in item 1 of the scope of the patent application, a docking station providing far-field radio and playback of a mobile device, wherein the first connection portion is a universal serial bus socket, and the second connection portion is a universal serial bus plug. As described in item 5 of the scope of the patent application, the docking station that provides far-field radio and playback for mobile devices, wherein the universal serial bus is a Type-C universal serial bus. As described in item 1 of the scope of the patent application, a docking station that provides far-field radio reception and playback for mobile devices, wherein the digital analog converter is further connected to the voice digital signal processor, is used to provide an echo cancellation signal to the voice digital signal processor. As described in item 1 of the scope of the patent application, a docking station that provides far-field radio reception and playback for mobile devices, wherein the microphone array is a ring microphone array. As described in item 1 of the scope of the patent application, a docking station that provides far-field radio and playback of a mobile device, where the mobile device is a smartphone or a tablet computer.

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