Signal transmission circuit and earphone

Abstract

The application discloses a signal transmission circuit and earphones, comprising an antenna module, a switch module, a Bluetooth module and a WIFI module. The antenna module is used for receiving and transmitting WIFI signals and / or Bluetooth signals. The antenna module is connected to the switch module. The Bluetooth module is connected to the switch module. The WIFI module is connected to the switch module.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and in particular to a signal transmission circuit and a headphone. Background Technology

[0002] Wireless headphones are headphones that connect to audio source devices wirelessly, transmitting audio signals without physical cables. They free users from the constraints of traditional wired headphones, offering greater freedom and portability. Wireless headphones can transmit audio files via Wi-Fi or Bluetooth. Wi-Fi boasts high bandwidth, easily transmitting lossless or high-bitrate audio files with low latency, significantly improving listening detail, and offering wide coverage. Bluetooth, on the other hand, features low power consumption, providing better battery life and convenience. Currently, most wireless headphones on the market only support Bluetooth for audio file transmission, which is insufficient to meet the needs of users in different application scenarios. Utility Model Content

[0003] This application aims to provide a signal transmission circuit and headphones that can support Bluetooth and WIFI transmission of audio files, meeting the needs of users in different application scenarios.

[0004] In a first aspect, embodiments of this application provide a signal transmission circuit, including: Antenna module, the antenna module being used to transmit and receive WIFI signals and / or Bluetooth signals; The antenna module is connected to the switch module; Bluetooth module, the Bluetooth module being connected to the switch module; A WIFI module, which is connected to the switch module.

[0005] According to some embodiments of this application, it also includes: A first capacitor is disposed between the antenna module and the switch module.

[0006] According to some embodiments of this application, it also includes: The second capacitor is disposed between the Bluetooth module and the switch module.

[0007] According to some embodiments of this application, it also includes: The third capacitor is disposed between the WIFI module and the switch module.

[0008] According to some embodiments of this application, it also includes: The power supply terminal of the switching module is grounded through the fourth capacitor.

[0009] According to some embodiments of this application, it also includes: The fifth capacitor is used to ground the control terminal of the switching module.

[0010] According to some embodiments of this application, it also includes: The first resistor is used to ground the control terminal of the switching module.

[0011] According to some embodiments of this application, the switching module includes: An RF switching device is connected to the antenna module, Bluetooth module, and WIFI module.

[0012] Secondly, embodiments of this application provide an earphone, including the signal transmission circuit as described above.

[0013] In this embodiment, the control switch module can switch the connection between the WIFI module and the antenna module, or switch the connection between the Bluetooth module and the antenna module, so as to transmit and receive WIFI signals or Bluetooth signals through the antenna module and transmit audio files to meet the user's needs for different application scenarios.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a functional block diagram of the signal transmission circuit provided in an embodiment of this application; Figure 2 A circuit diagram of a signal transmission circuit provided in an embodiment of this application.

[0016] Figure label: Antenna module 100, switch module 200, Bluetooth module 300, WIFI module 400. Detailed Implementation

[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0020] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0021] The following reference Figures 1 to 2 This application describes a signal transmission circuit and an earphone according to an embodiment of the present application.

[0022] This application provides a signal transmission circuit, such as... Figure 1 As shown, it includes: Antenna module 100, which is used to transmit and receive WIFI signals and / or Bluetooth signals; Switch module 200, antenna module 100 are connected to switch module 200; Bluetooth module 300, Bluetooth module 300 connects to switch module 200; WIFI module 400, WIFI module 400 connects to switch module 200, WIFI module 400 connects to Bluetooth module 300.

[0023] In this embodiment, by controlling the switch module 200, it is possible to switch the WIFI module 400 and the antenna module 100 to be connected, or to switch the Bluetooth module 300 and the antenna module 100 to be connected, and then transmit and receive WIFI signals or Bluetooth signals through the antenna module 100 to transmit audio files, so as to meet the user's needs for different application scenarios.

[0024] For example, when users have high demands for sound quality, the switch module 200 can switch to the Wi-Fi module 400 and antenna module 100 to conduct, utilizing the high bandwidth and low latency of Wi-Fi technology to transmit lossless or high-bitrate audio files, thus providing high-definition lossless sound quality. When users have high demands for headphone battery life, the switch module 200 can switch to the Bluetooth module 300 and antenna module 100 to conduct, utilizing the low power consumption of the Bluetooth module 300 to transmit audio files, providing long battery life.

[0025] In some embodiments of this application, such as Figure 2 As shown, the switch module 200 includes an RF switching switch U3, which is connected to the antenna module 100, the Bluetooth module 300, and the WIFI module 400. The RF switching switch U3 is a device capable of switching between different RF signal paths, allowing for the connection or switching of signal paths. The switch module 200 can also use FET switches, PIN switches, analog switches, etc., instead of the RF switching switch U3.

[0026] In some embodiments of this application, the Bluetooth module 300 includes a Bluetooth master control chip. This chip is responsible for processing the transmission of wireless signals, ensuring stable connections and data transmission rates between the headset and other Bluetooth devices. This includes operations such as frequency hopping, modulation / demodulation, data packet segmentation and reassembly, ensuring connection stability and transmission efficiency. The Bluetooth master control chip decodes audio signals, supports multiple audio encoding formats, and provides a high-quality audio experience. Its high-performance processor reduces the loss of sound quality due to data compression, ensuring rich musical details and a wide dynamic range. The Bluetooth master control chip also manages power, ensuring the headset's low-power design and extending its usage time. Excellent power management technology can significantly reduce power consumption and extend the headset's battery life.

[0027] In some embodiments of this application, the WIFI module 400 includes a WIFI chip that enables the headphones to connect to a mobile phone or other devices via WIFI. The WIFI chip supports high bitrate audio transmission, providing clearer sound quality and lower latency.

[0028] In some embodiments of this application, the antenna module 100 includes only a first antenna unit, and both the WIFI module 400 and the Bluetooth module 300 use the first antenna unit to transmit and receive WIFI signals or Bluetooth signals.

[0029] In some embodiments of this application, the antenna module 100 includes a first antenna unit and a second antenna unit, the WIFI module 400 transmits and receives WIFI signals through the first antenna unit, and the Bluetooth module 300 transmits and receives Bluetooth signals using the second antenna unit.

[0030] In some embodiments of this application, such as Figure 2 As shown, it also includes: The first capacitor C90 is disposed between the antenna module 100 and the switch module 200.

[0031] In this embodiment, the first capacitor C90 can isolate DC signals and also serve as the input and output terminals of the matching switch module 200.

[0032] In some embodiments of this application, such as Figure 2 As shown, it also includes: The second capacitor C92 is located between the Bluetooth module 300 and the switch module 200.

[0033] In this embodiment, the second capacitor C92 can isolate DC signals and also serve as the input and output terminals of the matching switch module 200.

[0034] According to some embodiments of this application, such as Figure 2 As shown, it also includes: The third capacitor C93 is located between the WIFI module 400 and the switch module 200.

[0035] In this embodiment, the third capacitor C93 can isolate DC signals and also serve as the input and output terminals of the matching switch module 200.

[0036] According to some embodiments of this application, such as Figure 2 As shown, it also includes: The power supply terminal of the switching module 200 is grounded through the fourth capacitor C97.

[0037] In this embodiment, the power supply terminal of the switch module 200 is connected to the power supply terminal through the second resistor R34, and the power supply terminal of the switch module 200 is grounded through the fourth capacitor C97. The fourth capacitor C97 is used for power filtering to filter out high-frequency interference and stabilize the power supply of the switch module 200.

[0038] In some embodiments of this application, such as Figure 2 As shown, it also includes: The fifth capacitor C91 is used to ground the control terminal of the switch module 200.

[0039] In this embodiment, the control terminal of the switch module 200 is used to receive control signals and control the switching of the switch module 200 through the control signals. The fifth capacitor C91 is used to filter out glitches and interference in the control signals, making the control signal level smoother, stabilizing the state switching of the switch module 200, and avoiding malfunctions.

[0040] In some embodiments of this application, such as Figure 2 As shown, it also includes: The first resistor R33 is used to ground the control terminal of the switch module 200.

[0041] In this embodiment, when the control signal is not activated, the control terminal of the switch module 200 is stabilized at a low level by the first resistor R33, so as to ensure that the state of the switch module 200 is stable and no malfunction occurs.

[0042] In addition, this application provides an earphone, including the signal transmission circuit as described above.

[0043] In this embodiment, by controlling the switch module 200, it is possible to switch the WIFI module 400 and the antenna module 100 to be connected, or to switch the Bluetooth module 300 and the antenna module 100 to be connected, so that the antenna module 100 can transmit and receive signals to meet the user's needs for different application scenarios.

[0044] For example, when users have high demands for sound quality, the switch module 200 can switch to the Wi-Fi module 400 and antenna module 100 to conduct, utilizing the high bandwidth and low latency of Wi-Fi technology to transmit lossless or high-bitrate audio files, thus providing high-definition lossless sound quality. When users have high demands for headphone battery life, the switch module 200 can switch to the Bluetooth module 300 and antenna module 100 to conduct, utilizing the low power consumption of the Bluetooth module 300 to transmit audio files, providing long battery life.

[0045] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A signal transmission circuit, characterized in that, include: Antenna module, the antenna module being used to transmit and receive WIFI signals and / or Bluetooth signals; The antenna module is connected to the switch module; Bluetooth module, the Bluetooth module being connected to the switch module; A WIFI module, which is connected to the switch module.

2. The signal transmission circuit according to claim 1, characterized in that, Also includes: A first capacitor is disposed between the antenna module and the switch module.

3. The signal transmission circuit according to claim 1, characterized in that, Also includes: The second capacitor is disposed between the Bluetooth module and the switch module.

4. The signal transmission circuit according to claim 1, characterized in that, Also includes: The third capacitor is disposed between the WIFI module and the switch module.

5. The signal transmission circuit according to claim 1, characterized in that, Also includes: The power supply terminal of the switching module is grounded through the fourth capacitor.

6. The signal transmission circuit according to claim 1, characterized in that, Also includes: The fifth capacitor is used to ground the control terminal of the switching module.

7. The signal transmission circuit according to claim 1, characterized in that, Also includes: The first resistor is used to ground the control terminal of the switching module.

8. The signal transmission circuit according to claim 1, characterized in that, The switching module includes: An RF switching device is connected to the antenna module, Bluetooth module, and WIFI module.

9. An earphone, characterized in that, Includes the signal transmission circuit as described in any one of claims 1 to 8.

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