CN218183525U

CN218183525U - Low-power consumption wireless audio adapter and intelligent device

Info

Publication number: CN218183525U
Application number: CN202222176154.9U
Authority: CN
Inventors: 谭晖
Original assignee: Shenzhen Chuanghong New Intelligent Technology Co ltd
Current assignee: Shenzhen Chuanghong New Intelligent Technology Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-30
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses a low-power consumption wireless audio frequency adapter and smart machine. The low power consumption wireless audio adapter comprises a PCB board; the communication interface is arranged on one side of the PCB and used for being connected with the intelligent equipment, supplying power to the adapter through the intelligent terminal and serving as a channel for transmitting audio stream data; the wireless multi-protocol SOC chip is provided with a USB communication interface, is arranged on the PCB and is connected with the adapter communication interface so as to be used for carrying out data processing on Audio stream data, and thus, the Audio stream data is transmitted by a plurality of wireless protocols, such as a 2.4G private protocol and a low-power Bluetooth Audio LE Audio protocol; the antenna is arranged on the PCB, connected with the wireless multi-protocol SOC chip and used for transmitting audio stream data in a wireless mode, and the transmission of the audio stream data is bidirectional. By using the adapter, the intelligent terminal which does not support LE Audio can support the new standard of LE Audio.

Description

Low-power-consumption wireless audio adapter and intelligent device

Technical Field

The utility model relates to an adapter field especially relates to a low-power consumption wireless audio frequency adapter and smart machine.

Background

The traditional Bluetooth promotes the development of wireless audio application, but has the defects of single application scene, high power consumption and the like. Under the background, the bluetooth alliance provides a new generation of the LE Audio standard, which has new characteristics and richer application scenarios. The new characteristics of LE Audio include: multi-Stream Audio (Multi-Stream Audio), low Complexity Communication Codec (LC 3), broadcast Audio (Broadcast Audio), these new features will effectively improve sound quality, reduce transmission delay and power consumption, provide higher quality Audio and longer battery life for speakers and earphones; the Bluetooth audio sharing function is supported, a plurality of earphones are supported to be connected to a single audio stream and other applications, the application can be applied to the fields of public broadcasting and hearing assistance, and richer application scenes are brought to wireless audio application.

Although the LE Audio has many advantages and benefits, the hardware and software of the smart terminal are required to support the new standard for use, so many existing smart terminals cannot communicate with the peripheral devices supporting the LE Audio, such as Audio sharing, broadcast Audio, hearing aid field, and the use scenario of true wireless bluetooth headsets is not applicable. Therefore, there is a need for an Audio adapter that enables an intelligent terminal that does not support LE Audio to support the new standard LE Audio, so as to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wireless Audio frequency adapter of low-power consumption and smart machine to make the intelligent terminal that does not support LE Audio can support this kind of new standard of LE Audio.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

the utility model discloses technical scheme's first aspect provides a low-power consumption wireless audio frequency adapter, include:

a PCB board;

the communication interface is arranged on one side of the PCB and used for being connected with intelligent equipment, supplying power to the wireless audio adapter through the intelligent equipment and transmitting audio stream data;

the wireless multi-protocol SOC chip is arranged on the PCB and connected with the communication interface so as to be used for carrying out data processing on the Audio stream data and transmitting the Audio stream data by an LE Audio protocol;

the antenna is arranged on the PCB and connected with the wireless multi-protocol SOC chip so as to be used for receiving the Audio stream data transmitted by the LE Audio protocol and outputting the Audio stream data to the outside; and the wireless multi-protocol SOC chip is also used for receiving external audio stream data and transmitting the external audio stream data to the wireless multi-protocol SOC chip for data processing.

Preferably, the mobile terminal further comprises a radio frequency front end extension chip, the radio frequency front end extension chip is mounted on the PCB and connected with the wireless multi-protocol SOC chip, and the antenna is connected with the wireless multi-protocol SOC chip through the radio frequency front end extension chip to extend a communication distance and expand a signal coverage.

Preferably, a power management circuit is preset in the PCB, a current input end of the power management circuit is connected to the communication interface, and a current output end of the power management circuit is connected to the wireless multi-protocol SOC chip and the radio frequency front-end expansion chip;

and under the state that the communication interface is connected with the intelligent equipment, the intelligent equipment supplies power to the wireless multi-protocol SOC chip and the radio frequency front-end extension chip through the power management circuit.

Preferably, the wireless multi-protocol SOC chip supports transmission of multiple wireless protocols; wherein the plurality of wireless protocols includes at least a 2.4G proprietary protocol and a Bluetooth Low energy protocol.

Preferably, the wireless multi-protocol SOC chip includes a radio frequency transceiver and a high performance processor;

the radio frequency transceiver is connected with the communication interface and used for receiving or sending the audio stream data;

and the performance processor is connected with the radio frequency transceiver and used for receiving the Audio stream data sent by the radio frequency transceiver and processing the data so as to transmit the data by an LE Audio protocol.

Preferably, the rf front-end extension chip includes an rf switch for function switching, a power amplifier for amplifying transmission power, and a low noise amplifier for improving reception sensitivity.

Preferably, the communication interface includes at least one of a USB interface, a Type-c interface, and a Lightning interface.

Preferably, the mobile terminal further comprises a function key, wherein the function key is arranged on one side of the PCB and connected with the PCB for function switching.

Preferably, the portable terminal further comprises a housing, the housing is provided with a hollow accommodating cavity, the outer wall of the housing is provided with an avoiding hole, and the avoiding hole is communicated with the accommodating cavity;

PCB board, wireless multi-protocol SOC chip, radio frequency front end extension chip and antenna all are located hold the cavity in, just communication interface follows dodge the hole and stretch out the shell.

The utility model provides a second aspect of technical scheme provides an intelligent device, including above-mentioned low-power consumption wireless audio frequency adapter.

Compared with the prior art, the utility model, beneficial effect as follows:

the utility model adopts the technical proposal that the low-power consumption wireless audio adapter is connected with the communication interface to the intelligent device (such as a smart phone), when the intelligent device is used (such as playing music), audio stream data can enter the wireless multi-protocol SOC chip from the intelligent device through the communication interface for data processing; the audio stream data processed by the wireless multi-protocol SOC chip can be transmitted to the radio frequency front end expansion chip according to a preset protocol, and finally the audio stream data transmitted according to the preset protocol is transmitted to the outside through the antenna, so that the intelligent device can be applied to scenes such as audio sharing and public broadcasting.

Drawings

Fig. 1 is a schematic structural diagram of a low power consumption wireless audio adapter according to an embodiment of the present invention;

fig. 2 is a schematic circuit connection diagram of a low power consumption wireless audio adapter according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a wireless multi-protocol SOC chip;

fig. 4 is a schematic structural diagram of an rf front-end expansion chip.

In the drawings, each reference numeral indicates:

1. a PCB board; 101. a power management circuit; 2. a communication interface; 3. a wireless multi-protocol SOC chip; 31. a radio frequency transceiver; 32. a performance processor; 4. a radio frequency front end expansion chip; 41. a radio frequency switch; 42. a power amplifier; 43. a low noise amplifier; 5. an antenna; 6. function keys.

Detailed Description

To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides a low-power consumption wireless Audio adapter is mainly applied to intelligent terminal to the intelligent terminal who does not support LE Audio can support this kind of new standard of LE Audio. In this embodiment, the wireless audio adapter is inserted into an intelligent terminal, such as a smart phone, and the OTG function should be started at the intelligent terminal when the situation of non-recognition occurs. The OTG is an abbreviation of USB On-The-Go, and The OTG function is a novel USB transmission technology, and is used to directly connect mobile devices such as a mobile phone and a tablet to external devices such as a USB disk, a card reader, a keyboard, a mouse, and a digital camera to perform functions such as data transmission, output operation, or charging without using a computer as a transfer station.

The low power wireless audio adapter is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the embodiment of the present invention provides a low power consumption wireless audio adapter, which includes a PCB board 1, a communication interface 2, a wireless multi-protocol SOC chip 3, a radio frequency front end extension chip 4 and an antenna 5. The PCB 1 is used for providing an installation foundation for other components, and is preset with an internal connection circuit to realize the electric connection of the components; the communication interface 2 is used for connecting with an intelligent device to transmit audio stream data; the wireless multi-protocol SOC chip 3, the radio frequency front end extension chip 4 and the antenna 5 are mutually matched to realize the processing of audio stream data, so that the audio stream data are transmitted by a preset protocol. In this embodiment, the preset protocol may be LE Audio protocol transmission, or may be other specified wireless protocol format.

Specifically, in this embodiment, the communication interface 2 is disposed on one side (the lower side in fig. 1, and may be another side in other embodiments) of the PCB board 1, so as to be connected with the smart device, so as to transmit audio stream data. The wireless multi-protocol SOC chip 3 is installed on the PCB board 1 and connected with the communication interface 2 for processing the Audio stream data so as to transmit in LE Audio protocol. The radio frequency front end extension chip 4 is installed on the PCB 1 and connected with the wireless multi-protocol SOC chip 3 to be used for extending the communication distance, so that the radio frequency front end extension chip is applied to scenes needing signal coverage in a large range. The antenna 5 is arranged on the PCB 1 and connected with the wireless multi-protocol SOC chip 3 through the radio frequency front end expansion chip 4 so as to receive Audio stream data transmitted by an LE Audio protocol and output the Audio stream data to the outside; and the wireless multi-protocol SOC chip is also used for receiving external audio stream data and transmitting the data to the wireless multi-protocol SOC chip 3 for data processing.

In the embodiment, when the intelligent device is used (for example, music playing), audio stream data enters the wireless multi-protocol SOC chip 3 from the intelligent device through the communication interface 2 for data processing by connecting the communication interface 2 to the intelligent device (for example, a smart phone) during specific use; the Audio stream data processed by the wireless multi-protocol SOC chip 3 can be transmitted to the radio frequency front end extension chip 4 by an LE Audio protocol, and finally, the Audio stream data transmitted by the LE Audio protocol is transmitted out by the antenna 5, so that the intelligent device can be applied to Audio sharing, public broadcasting and other scenes.

As shown in fig. 2, specifically, in the above embodiment, a power management circuit 101 is preset in the PCB board 1, a current input end of the power management circuit 101 is connected to the communication interface 2, and a current output end of the power management circuit 101 is connected to the wireless multi-protocol SOC chip 3 and the radio frequency front-end extension chip 4. When the communication interface 2 is connected with the intelligent device, the intelligent device supplies power to the wireless multi-protocol SOC chip 3 and the radio frequency front-end expansion chip 4 through the power management circuit 101, so that normal operation of the low-power wireless audio adapter is ensured. In addition, it is understood that, in other embodiments, the power management circuit 101 may not be disposed on the PCB board 1, and an external power source (for example, a battery) is used to supply power to the wireless multi-protocol SOC chip 3 and the radio frequency front-end expansion chip 4, which may be adaptively selected according to actual needs.

In the above embodiment, the communication interface 2 at least includes one of a USB interface, a Type-c interface and a Lightning interface to adapt to external communication interfaces of various smart devices. It will be appreciated that low power wireless audio adapters with different types of communication interfaces 2 can be made in different models, for example: the model 1 is a low-power consumption wireless audio adapter with a USB interface; the Type 2 is a low-power wireless audio adapter with a Type-c interface; the model 3 is a low-power wireless audio adapter of Lightning interface and so on, during specific use, can be according to the type of the external communication interface of the smart machine that needs to be connected, in multiple interface type select one with the smart machine phase-match can to improve the suitability of whole low-power wireless audio adapter. Preferably, the communication interface 2 in this embodiment is a USB interface, and a USB (Universal Serial Bus) Bus protocol is a Serial interface standard and is also a technical specification of an input/output interface, and is widely applied to intelligent terminal products such as personal computers and mobile devices. The USB is used as a universal data interface, and can implement data input and output including digital audio, and the embodiment adopts a USB audio protocol format to adapt to various intelligent devices and implement audio data transmission, so that various mobile terminals and intelligent devices can better support the USB audio protocol. In addition, it can be understood that the communication interface 2 may also be adapted according to the hardware interface form of the special intelligent device to form a dedicated interface, so as to meet the use requirement of the special intelligent device.

In the above embodiment, as shown in fig. 3, the wireless multi-protocol SOC chip 3 includes the radio frequency transceiver 31 and the performance processor 32. Wherein, the radio frequency transceiver 31 is connected with the communication interface 2 for receiving or sending audio stream data; the performance processor 32 is connected to the rf transceiver 31 for receiving the Audio stream data sent by the rf transceiver 31 and processing the data for transmission in the LE Audio protocol. In addition, in this embodiment, the wireless multi-protocol SOC chip 3 is a multi-protocol SOC chip, integrates a high-performance processor and a low-power consumption radio frequency transceiver, supports multiple protocols, preferably selects and supports the low-power consumption bluetooth 5.2 or more, and can support the LE Audio protocol. The transmission of the audio stream data can be unidirectional or bidirectional, and due to the adoption of the wireless multi-protocol SOC, the transmission of a plurality of wireless protocols can be supported, such as a 2.4G proprietary protocol, a low-power Bluetooth protocol and the like.

As shown in fig. 4, in the above embodiment, preferably, the radio frequency front end extension chip 4 includes a radio frequency switch 41, a power amplifier 42 and a low noise amplifier 43. Wherein, the radio frequency switch 41 is used for function switching; the power amplifier 42 is for amplifying the transmission power; the low noise amplifier 43 is used to improve the reception sensitivity.

As shown in fig. 1, in the above embodiment, the low power consumption wireless audio adapter further includes a function key 6. The function key 6 is disposed at one side of the PCB (i.e., the left side in fig. 1) and connected to the PCB 1 for function switching. Specifically, the number of the function keys 6 may be multiple, and different function keys 6 represent different functions, so that function switching can be performed as needed to meet different use requirements. For example: the function keys 6 may include switching of audio protocols, for example: 2.4g private protocol or LE Audio protocol is selected; it can also be used as hardware reset, one-key mute, open match peer.

In the above embodiments, the low power wireless audio adapter further comprises a housing (not shown in the figures). Specifically, the shell is provided with a hollow accommodating cavity, and the outer wall of the shell is provided with avoiding holes which are communicated with the accommodating cavity. During specific installation, the PCB board 1, the wireless multi-protocol SOC chip 3, the radio frequency front end expansion chip 4 and the antenna 5 are all placed in the accommodating cavity, and the communication interface 2 extends out of the shell from the avoiding hole. Therefore, the PCB 1, the wireless multi-protocol SOC chip 3, the radio frequency front-end extension chip 4 and the antenna 5 inside the shell can be protected by the shell, so that the use safety and the whole attractiveness are improved. Further, it will be appreciated that the function keys 6 described above need to protrude to the outside of the housing to be easily depressed by the user.

On the basis of the above embodiment, the utility model also provides an intelligent device, it includes as above-mentioned low-power consumption wireless audio adapter. The intelligent device can be a smart phone, and can also be an intelligent wearable device and the like.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A low power wireless audio adapter, comprising:

a PCB board;

the antenna is arranged on the PCB and connected with the wireless multi-protocol SOC chip so as to be used for receiving the Audio stream data transmitted by the LE Audio protocol and outputting the Audio stream data to the outside; and the wireless multi-protocol SOC chip is also used for receiving external audio stream data and transmitting the data to the wireless multi-protocol SOC chip for data processing.

2. The low power wireless audio adapter according to claim 1, wherein:

the antenna is connected with the wireless multi-protocol SOC chip through the radio frequency front end extension chip so as to be used for extending communication distance and enlarging signal coverage.

3. The low power wireless audio adapter according to claim 2, wherein:

a power management circuit is preset in the PCB, the current input end of the power management circuit is connected with the communication interface, and the current output end of the power management circuit is connected with the wireless multi-protocol SOC chip and the radio frequency front-end expansion chip;

4. The low power wireless audio adapter of claim 1, wherein:

the wireless multi-protocol SOC chip supports the transmission of a plurality of wireless protocols; wherein the plurality of wireless protocols includes at least a 2.4G proprietary protocol and a Bluetooth Low energy protocol.

5. The low power wireless audio adapter of claim 1, wherein said wireless multi-protocol SOC chip includes a radio frequency transceiver and a high performance processor;

6. The low power wireless audio adapter according to claim 2, wherein:

the radio frequency front end extension chip comprises a radio frequency switch for switching functions, a power amplifier for amplifying transmitting power and a low noise amplifier for improving receiving sensitivity.

7. The low power wireless audio adapter of claim 1, wherein:

the communication interface at least comprises one of a USB interface, a Type-c interface and a Lightning interface.

8. The low power wireless audio adapter of claim 1, wherein:

the PCB is characterized by further comprising a function key, wherein the function key is arranged on one side of the PCB and is connected with the PCB so as to be used for switching functions.

9. The low power wireless audio adapter according to claim 2, wherein:

the shell is provided with a hollow accommodating cavity, the outer wall of the shell is provided with an avoiding hole, and the avoiding hole is communicated with the accommodating cavity;

10. A smart device comprising a low power wireless audio adapter according to any of claims 1-9.