Translation receiver suitable for Bluetooth equipment

Abstract

The invention relates to the field of Bluetooth equipment application, and discloses a translation receiver suitable for Bluetooth equipment, which comprises a USB (Universal Serial Bus) chip supporting a USB audio protocol to perform bidirectional communication with an intelligent terminal; the Bluetooth chip is in wireless two-way communication with various Bluetooth devices through a Bluetooth protocol; and a parallel dual-channel data transmission structure is adopted, high-speed stable bidirectional audio signal transmission is realized through an I2S interface, and low-delay control data is transmitted through an independent serial interface or parallel interface. Through the parallel double-channel design, real-time performance and high-quality transmission of audio signals are ensured, meanwhile, synchronization of audios in the translation process is ensured, the translation effect and user experience are greatly improved, operation is simplified, plug-and-play is supported, translation software does not need to be additionally installed, and user experience is improved. And the compatibility and the interactivity between the Bluetooth devices are greatly improved.

Description

Technical Field

[0001] The present invention relates to a translation receiver applicable to Bluetooth devices, belonging to the technical fields of Bluetooth devices and audio transmission. Background Art

[0002] With the continuous development of wireless communication technology, Bluetooth devices are increasingly widely used in daily life, especially in the field of audio transmission. Devices such as Bluetooth headsets and Bluetooth conference microphones bring people a convenient wireless audio communication experience. During the audio data transmission between Bluetooth devices and smart terminals, the Bluetooth protocol is usually used for wireless data exchange. However, this transmission method has certain limitations. Especially when multiple devices are used simultaneously, audio synchronization and transmission stability often cannot be effectively guaranteed. In addition, due to the time delay problem in the audio signal transmission process, it often affects the accuracy of real-time translation systems, resulting in audio data loss or delay.

[0003] In the prior art, for the situation where participants come from different countries and use Bluetooth devices of different brands and models, the audio data transmission between Bluetooth devices and smart terminals usually relies on the Bluetooth protocol and USB interfaces. However, these methods often face the following problems: 1. Most of the prior art uses a single channel or a traditional interface structure to transmit audio data, which leads to the inability to ensure the stability and high quality of audio transmission under high load conditions. Especially when the translation function is enabled, the audio synchronization problem is particularly prominent. 2. Some systems require the installation of specific translation software on both the smart terminal and the Bluetooth device, which is complicated to operate and increases the compatibility difficulty between devices. 3. The traditional system uses a shared channel for the transmission of control instructions and audio data, which is prone to data conflicts and delays, affecting the response speed and stability of the system.

[0004] To overcome these problems, the industry usually adopts methods to optimize the audio signal transmission structure, such as by increasing hardware interfaces or improving protocol designs. However, these methods often bring problems such as complex system structure, increased device volume, and increased maintenance costs. Therefore, how to ensure the stability of audio transmission while simplifying the operation process, improving the compatibility and real-time performance between multiple devices has become the technical problem to be solved by the present invention. Summary of the Invention

[0005] The present invention provides a translation receiver applicable to Bluetooth devices, and its main purpose is to solve the problems of poor audio synchronization, poor device compatibility, and complex operation.

[0006] To achieve the above object, a translation receiver applicable to Bluetooth devices provided by the present invention includes: a USB chip configured to perform two-way communication with a smart terminal through a USB interface, support the USB Audio Class (UAC) protocol, and be used for receiving and sending audio data; a Bluetooth chip configured to perform wireless two-way communication with various Bluetooth devices including Bluetooth headsets, Bluetooth conference microphones, and Bluetooth voice recorders through a Bluetooth protocol to transmit audio data; A parallel dual-channel data transmission structure is adopted between the USB chip and the Bluetooth chip, including: a dedicated I2S interface configured to perform high-speed and stable two-way digital audio signal transmission between the USB chip and the Bluetooth chip to bridge the audio stream between the smart terminal and the Bluetooth device; An independent serial interface or parallel interface configured to perform low-latency control data transmission between the USB chip and the Bluetooth chip, where the control data at least includes instructions for real-time starting, stopping, and managing the two-way translation function, and control information for ensuring audio data synchronization during the translation process; Wherein, the translation receiver is configured to communicate with the smart terminal through the USB interface or Bluetooth Low Energy (BLE) protocol in cooperation with translation software running on the smart terminal to achieve real-time two-way language translation of audio data between the smart terminal and the Bluetooth device, and there is no need to install specific translation software on both the smart terminal and the Bluetooth device simultaneously.

[0007] Preferably, the USB chip is further configured to support the USB Communication Device Class (CDC) Abstract Control Model (ACM) protocol for interacting control data with the smart terminal.

[0008] Preferably, when the translation function is turned off, the audio data between the smart terminal and the Bluetooth device is transparently transmitted through the I2S interface.

[0009] Preferably, when the translation function is turned on, the audio signal input by the user through the Bluetooth device is transmitted to the USB chip via the Bluetooth chip and the I2S interface, and the USB chip sends it to the smart terminal through the USB interface or Bluetooth Low Energy (BLE) protocol for translation processing.

[0010] Preferably, the USB chip sends control instructions to the Bluetooth chip through the serial interface or parallel interface to coordinate the reception and transmission of audio data and ensure the real-time nature of the translation process.

[0011] Preferably, when the translation function is enabled, the audio signal output by the smart terminal is transmitted to the USB chip through the USB interface or the Bluetooth Low Energy (BLE) protocol, and is sent to the Bluetooth device for playback via the I2S interface and the Bluetooth chip.

[0012] Preferably, the USB chip receives translation control instructions from the smart terminal through the serial interface or the parallel interface, and forwards these instructions to the Bluetooth chip to control the output of audio data.

[0013] Preferably, the serial interface or the parallel interface is also used to transmit synchronization information about translation language selection and translation status between the smart terminal and the translation receiver.

[0014] Preferably, the translation receiver obtains power supply from the smart terminal through the USB interface.

[0015] Compared with the problems described in the background art, the beneficial effects of the present invention are as follows: 1. Through the dual-channel data transmission structure and the efficient connection between the USB chip and the Bluetooth chip, the translation receiver can ensure seamless cooperation between different devices without relying on specific devices or software. Even if the participants use Bluetooth devices of different brands and models, the present invention can guarantee stable audio transmission and real-time translation, greatly improving the device adaptability and user experience, and avoiding the common problems of poor compatibility and complex device connection in traditional translation devices.

[0016] 2. By adopting a parallel dual-channel data transmission structure, the limitation of audio data transmission between traditional Bluetooth devices and smart terminals is broken. Especially through the dedicated I2S interface, high-speed and stable bidirectional digital audio signal transmission is realized, which not only guarantees the real-time and high-quality transmission of audio data, but also makes the interaction between the smart terminal and the Bluetooth device more fluent and accurate, improving the audio synchronization and accuracy during the language translation process, and realizing an improved user experience of multi-device interaction. Especially in complex scenarios where the translation function is enabled, the technical bottleneck of audio stuttering or loss in traditional systems is avoided.

[0017] 3. The control data transmission of the translation receiver adopts an independent serial or parallel interface, enabling the system to not only have low-latency control when starting, stopping, and managing the bidirectional translation function, but also monitor in real time and ensure audio synchronization during the translation process. This not only enhances the system's response speed but also ensures the coordination of multiple devices.

[0018] 4. Wireless communication with intelligent terminals through the Bluetooth Low Energy (BLE) protocol avoids the cumbersome steps of installing specific translation software on devices in traditional methods. This design makes the device more concise and convenient, reduces the complexity of user operations, and realizes an efficient translation experience that is wireless, intelligent, and plug-and-play. When the translation function is enabled, the audio signal input by the user through the Bluetooth device is transmitted to the intelligent terminal via the USB chip for translation processing, and the translation result is then transmitted back to the Bluetooth device through the USB interface or Bluetooth protocol for playback. This not only optimizes the two-way transmission process of the audio stream but also optimizes the coordination of audio data through real-time control instructions, making the entire translation process smoother and more intelligent, and better adapting to the environment where multiple Bluetooth devices work simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a system block diagram of the present invention applicable to intelligent terminal (Type 1).

[0020] Figure 2 It is a system block diagram of the present invention applicable to intelligent terminal (Type 2).

[0021] Figure 3 It is an audio data flow diagram after the translation function of the present invention is turned off.

[0022] Figure 4 It is an audio data flow diagram after the translation function of the present invention is turned on.

[0023] The implementation, functional features, and advantages of the present invention will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not used to limit the present invention.

[0025] An embodiment of the present application provides a translation receiver applicable to a Bluetooth device, including: a USB chip configured to perform two-way communication with an intelligent terminal through a USB interface, support the USB Audio Class (UAC) protocol, and be used to receive and send audio data; a Bluetooth chip configured to perform wireless two-way communication with a variety of Bluetooth devices including Bluetooth headsets, Bluetooth conference microphones, and Bluetooth voice recorders to transmit audio data. A parallel dual-channel data transmission structure is adopted between the USB chip and the Bluetooth chip, including: a dedicated I2S interface configured to perform high-speed and stable two-way digital audio signal transmission between the USB chip and the Bluetooth chip to bridge the audio stream between the intelligent terminal and the Bluetooth device. An independent serial interface or parallel interface, configured to perform low-latency control data transmission between the USB chip and the Bluetooth chip, where the control data at least includes instructions for real-time starting, stopping, and managing the two-way translation function, as well as control information for ensuring audio data synchronization during the translation process; Wherein, the translation receiver is configured to communicate with the smart terminal through the USB interface or the Bluetooth Low Energy (BLE) protocol in cooperation with the translation software running on the smart terminal, so as to achieve real-time two-way language translation of audio data between the smart terminal and the Bluetooth device, and there is no need to install specific translation software on both the smart terminal and the Bluetooth device at the same time.

[0026] Preferably, the USB chip is further configured to support the USB Communication Device Class (CDC) Abstract Control Model (ACM) protocol for interacting control data with the smart terminal.

[0027] Preferably, when the translation function is turned off, the audio data between the smart terminal and the Bluetooth device is transparently transmitted through the I2S interface.

[0028] Preferably, when the translation function is turned on, the audio signal input by the user through the Bluetooth device is transmitted to the USB chip via the Bluetooth chip and the I2S interface, and is sent by the USB chip to the smart terminal through the USB interface or the Bluetooth Low Energy (BLE) protocol for translation processing.

[0029] Preferably, the USB chip sends control instructions to the Bluetooth chip through the serial interface or parallel interface to coordinate the reception and transmission of audio data and ensure the real-time nature of the translation process.

[0030] Preferably, when the translation function is turned on, the audio signal output by the smart terminal is transmitted to the USB chip through the USB interface or the Bluetooth Low Energy (BLE) protocol, and is sent to the Bluetooth device for playback via the I2S interface and the Bluetooth chip.

[0031] Preferably, the USB chip receives translation control instructions from the smart terminal through the serial interface or parallel interface and forwards these instructions to the Bluetooth chip to control the output of audio data.

[0032] Preferably, the serial interface or parallel interface is also used to transmit synchronization information about translation language selection and translation status between the smart terminal and the translation receiver.

[0033] Preferably, the translation receiver obtains power supply from the smart terminal through the USB interface.

[0034] Example 1: In a business meeting, multiple participants wear Bluetooth headsets respectively and conduct real-time translation and voice transmission through Bluetooth devices. At this time, the translation receiver plays its unique role, connecting the smart terminal with multiple Bluetooth devices to achieve two-way transmission of audio signals and real-time translation processing.

[0035] Specifically, the user inputs a voice signal through the Bluetooth headset. This signal is transmitted to the Bluetooth chip of the translation receiver through the Bluetooth protocol and then transmitted to the USB chip at high speed through the I2S interface. After receiving the audio data, the USB chip transmits the signal to the translation software of the smart terminal through the USB interface for real-time translation processing. The translation result is then returned to the translation receiver through the USB interface or the Bluetooth Low Energy protocol and transmitted to another Bluetooth device (such as a Bluetooth headset or a Bluetooth conference microphone) through the Bluetooth chip to complete the playback output of the voice.

[0036] In this process, the dual-channel parallel data transmission structure of the translation receiver plays a key role. First, the audio signal is transmitted at high speed through the I2S interface, ensuring the stability and real-time nature of the audio data, while the independent serial interface or parallel interface is responsible for the low-latency control data transmission to ensure that the translation instructions can be issued in a timely manner and keep the audio data synchronized. This dual-channel design effectively avoids common problems such as audio delay, data loss, and compatibility issues between different devices in traditional audio transmission methods.

[0037] Through this embodiment, it can be seen that there are often problems of poor audio synchronization and poor transmission stability between traditional Bluetooth devices and smart terminals. Especially in high-concurrency and complex environments, it is very difficult for Bluetooth devices and terminal devices to cooperate. Our technical solution not only improves the stability of audio signal transmission through the parallel dual-channel structure and flexible control instruction transmission, but also achieves real-time nature and accuracy in the translation process, greatly improving the interaction experience between devices.

[0038] In addition, the present invention enables users not to install translation software on both the smart terminal and the Bluetooth device at the same time, but to communicate with the smart terminal through the USB interface or the Bluetooth Low Energy protocol, thereby reducing the complexity of operation and improving the compatibility between devices. The plug-and-play function of the translation receiver also makes the system simpler and faster, and users can quickly deploy and use it in different environments.

[0039] Example 2: In an international business negotiation meeting, multiple participants from different countries use different models of Bluetooth headsets and Bluetooth conference microphones to communicate. However, due to language barriers, traditional translation systems often require each participant to install specific translation software and cannot guarantee the compatibility between devices, resulting in problems such as unstable connection of multiple devices and serious translation delay.

[0040] To solve this problem, in this embodiment, the translation receiver of the present invention is adopted to improve the cross - language communication efficiency in the meeting. Specifically, the translation receiver is connected to the smart terminal through a USB interface and paired with multiple Bluetooth devices (such as Bluetooth headsets and Bluetooth microphones) through the classic Bluetooth protocol. When the user speaks, the Bluetooth microphone captures the audio signal, and the signal is transmitted to the Bluetooth chip through the classic Bluetooth protocol and then to the USB chip through the I2S interface. At this time, the USB chip transmits the audio data to the smart terminal through the USB UAC protocol for real - time translation. The translated audio returns to the Bluetooth device through the same path and is played through the speaker of the Bluetooth device.

[0041] Particularly, the translation receiver in this embodiment not only efficiently transmits the audio signal through the I2S interface, but also performs low - latency transmission of control data through a serial or parallel interface to ensure audio synchronization and system response speed during the translation process. In addition, the USB chip also supports the USB CDC ACM protocol, enabling efficient private protocol communication with the smart terminal, further improving the response speed and accuracy of the translation.

[0042] Through this solution, regardless of the model of the Bluetooth device used by the participants, they only need to insert the translation receiver and pair the Bluetooth device, and rely solely on the software installed on the smart terminal (such as a mobile phone) used by the participants to communicate with the translation receiver through the USB CDC ACM private protocol to transmit the translated audio data. This plug - and - play design greatly improves the system compatibility and operation convenience, and avoids the common problems of high latency and low compatibility in traditional translation devices, making cross - language communication more fluent and smooth.

[0043] Embodiment 3: The translation receiver system of the present invention realizes efficient and stable two - way audio transmission among multiple devices and protocols through precise audio data stream transmission design. Figures 1 to 4 Respectively show the audio data stream path and system connection architecture of the present invention in different working modes.

[0044] Figure 1This is a system block diagram of the present invention applicable to intelligent terminals (Type 1). This diagram shows the connection and working principle between the translation receiver and the intelligent terminal. In the diagram, the translation receiver is connected to the intelligent terminal through a USB interface (or a Type-C interface). The USB interface is connected to a USB chip, supporting the USB CDC ACM protocol and the USB UAC protocol. The translation receiver includes a USB chip and a Bluetooth chip. The Bluetooth chip communicates with Bluetooth devices through the classic Bluetooth protocol to achieve two-way transmission of audio data. At the same time, the USB chip and the Bluetooth chip perform high-speed and stable transmission of audio signals through the I2S interface, and transmit control data through the UART interface, the I2S interface, or the I2S1 interface. The peripheral circuit is used to support other functions of the translation receiver. When the translation function is turned off, the audio signal is transmitted from the intelligent terminal to the translation receiver through the USB UAC protocol, and then output from the translation receiver to the user. When the translation function is turned on, the audio signal is subjected to real-time translation with the software of the intelligent terminal through the USB CDC ACM private protocol of the USB interface, and the translated audio signal is played through the Bluetooth device, ensuring efficient cooperation and real-time translation effect between devices.

[0045] Figure 2 This is a system block diagram of the present invention applicable to intelligent terminals (Type 2). This diagram shows the connection and working principle between the translation receiver and the intelligent terminal. In the diagram, the translation receiver is connected to the intelligent terminal through a USB interface (or a Type-C interface). The USB interface is connected to a USB chip, supporting the USB CDC ACM protocol and the USB UAC protocol. The translation receiver includes a USB chip and a Bluetooth chip. The Bluetooth chip communicates with the software on the intelligent terminal through the BLE protocol to achieve two-way transmission of the translated audio, and at the same time connects to Bluetooth devices through the classic Bluetooth protocol. The USB chip and the Bluetooth chip perform high-speed and stable transmission of audio signals through the I2S interface, and transmit control data through the UART interface, the I2S interface, or the I2S1 interface. When the translation function is turned off, the audio signal is transmitted from the intelligent terminal to the Bluetooth device through the USB UAC protocol, and then output from the Bluetooth device to the user. When the translation function is turned on, the audio signal in the intelligent terminal is subjected to real-time translation with the software of the intelligent terminal through the BLE protocol.

[0046] Figure 3This is the audio data flow diagram after the translation function is turned off, showing the audio signal transmission process of the translation receiver when the translation function is on or off. The upper part represents the speaker audio data flow. First, the intelligent terminal (system speaker output) transmits the audio signal to the USB chip through the USB interface (or Type-C interface). The USB chip transmits the audio signal to the Bluetooth chip through the I2S interface. Then, the Bluetooth chip transmits the audio signal to the Bluetooth device through the classic Bluetooth protocol, and the Bluetooth device outputs the speaker audio signal. The lower part represents the microphone audio data flow. First, the Bluetooth device transmits the microphone audio signal to the Bluetooth chip through the classic Bluetooth protocol. The Bluetooth chip transmits the audio signal to the USB chip through the I2S interface. The USB chip transmits the audio signal to the intelligent terminal (system microphone input) through the USB interface (or Type-C interface). During this process, the USB chip performs two-way transmission of audio data with the intelligent terminal through the USB UAC protocol to ensure the stable and efficient transmission of audio data.

[0047] Figure 4 This is the audio data flow diagram after the translation function is turned on, showing the audio signal transmission process of the translation receiver when communicating with different protocols using the USB interface (or Type-C interface). In this diagram, multiple transmission paths for the speaker audio stream and the microphone audio stream are shown, specifically including: First, the speaker audio data flow (upper part) shows that in the translation receiver, the audio signal of the Bluetooth device is transmitted to the Bluetooth chip through the classic Bluetooth protocol, and then transmitted to the intelligent terminal (through the USB interface or Type-C interface) through the USB chip, so as to transmit the audio signal to the system speaker output. If the translation function is turned on, the audio signal is translated with the intelligent terminal software through the USB interface and returned to the Bluetooth device for playback.

[0048] The microphone audio data flow (lower part) shows that the audio signal collected by the microphone is transmitted to the Bluetooth chip through the Bluetooth device, and then transmitted to the intelligent terminal (system microphone input) through the USB chip, and sent to the intelligent terminal through the USB interface or Type-C interface for processing. During this process, the USB chip uses the USB UAC protocol to perform efficient data transmission with the intelligent terminal, which are all extended implementation methods known to those of ordinary skill in the art.

[0049] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A translation receiver for a Bluetooth device, comprising: The USB chip is configured to perform two-way communication with the intelligent terminal through the USB interface, supports the USB audio class protocol, and is used to receive and send audio data; the Bluetooth chip is configured to perform wireless two-way communication with a variety of Bluetooth devices including Bluetooth headsets, Bluetooth conference microphones, and Bluetooth voice recorders through the Bluetooth protocol to transmit audio data; the characteristics are: A parallel dual-channel data transmission structure is adopted between the USB chip and the Bluetooth chip, including: an I2S interface configured to perform high-speed, stable bidirectional digital audio signal transmission between the USB chip and the Bluetooth chip to bridge the audio stream between the smart terminal and the Bluetooth device; An independent serial interface or parallel interface configured to perform low-latency control data transmission between the USB chip and the Bluetooth chip, the control data at least including instructions for starting, stopping and managing a two-way translation function in real time, and control information for ensuring synchronization of audio data during the translation process; The translation receiver is configured to communicate with the smart terminal through the USB interface or the Bluetooth low energy protocol in cooperation with the translation software running on the smart terminal to achieve real-time two-way language translation of audio data between the smart terminal and the Bluetooth device.

2. The translation receiver suitable for a Bluetooth device according to claim 1, characterized in that: The USB chip is also configured to support the USB communication device class abstract control model protocol for interacting with the intelligent terminal to control data.

3. The translation receiver suitable for a Bluetooth device according to claim 1, characterized in that: When the translation function is turned off, the audio data between the smart terminal and the Bluetooth device is transparently transmitted through the I2S interface.

4. The translation receiver suitable for a Bluetooth device according to claim 1, characterized in that: When the translation function is turned on, the audio signal input by the user through the Bluetooth device is transmitted to the USB chip via the Bluetooth chip and the I2S interface, and is sent by the USB chip to the smart terminal through the USB interface or the Bluetooth low energy protocol for translation processing.

5. The translation receiver suitable for a Bluetooth device according to claim 4, characterized in that: The USB chip sends control instructions to the Bluetooth chip through the serial interface or the parallel interface.

6. The translation receiver suitable for a Bluetooth device according to claim 1, characterized in that: When the translation function is turned on, the audio signal output by the smart terminal is transmitted to the USB chip through the USB interface or the Bluetooth low energy protocol, and is sent to the Bluetooth device for playback via the I2S interface and the Bluetooth chip.

7. The translation receiver suitable for a Bluetooth device according to claim 6, characterized in that: The USB chip receives translation control instructions from the intelligent terminal through the serial interface or the parallel interface, and forwards these instructions to the Bluetooth chip.

8. The translation receiver suitable for a Bluetooth device according to claim 1, characterized in that: The serial interface or parallel interface is also used to transmit synchronization information about translation language selection and translation status between the intelligent terminal and the translation receiver.

9. The translation receiver suitable for a Bluetooth device according to claim 1, characterized in that: The translation receiver obtains power supply from the intelligent terminal through the USB interface.

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