A pairing method for a microphone

Abstract

The present invention discloses a pairing method for microphones, which realizes efficient connection of devices through the coordinated interaction of a first communication protocol and a second communication protocol. After the pairing is triggered, the transmitting device transmits a verification signal containing identity authentication information, and the receiving end parses the verification signal and activates wireless monitoring. A double verification mechanism is used to ensure that only authorized devices can be connected, which effectively solves the problem of cross-regional mispairing caused by the wide coverage of wireless signals in traditional solutions. Only a single end needs to trigger the pairing instruction, and the receiving end device automatically parses the verification signal and completes the subsequent process, avoiding the cumbersome process of operating the transmitting end and the receiving end at the same time in the traditional solution, and significantly improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless microphone communication, and more specifically, to a pairing method for a microphone. Background Art

[0002] Wireless microphones and receivers, as a complete set of products, are usually applied in audio acquisition scenarios, such as video shooting, live streaming, and audio recording scenarios. After the wireless microphone is powered on, the transmitter and the receiver need to be quickly paired and connected. Traditional pairing methods mainly rely on the following two technologies:

[0003] 2.4GHz wireless pairing: The device connection is achieved through radio frequency signals, but the signal coverage range is wide (usually exceeding 10 meters), which is likely to cause mispairing of adjacent devices.

[0004] Infrared-assisted pairing: The infrared signal is used to trigger the pairing process, but the existing solutions only start the wireless pairing through simple infrared instructions, lack an information interaction mechanism, cannot verify the device identity, and there is still a risk of privacy leakage.

[0005] Problems existing in the existing wireless microphone pairing process:

[0006] (1) It is necessary to simultaneously press the pairing buttons of the transmitter and the receiver to complete the connection through wireless pairing, which is difficult to operate and has a poor user experience.

[0007] (2) The 2.4GHz signal has a large coverage range, and it is difficult to limit the physical distance between paired devices.

[0008] (3) There is no device information verification mechanism, which is likely to cause mispairing of non-target devices and affect the use. Summary of the Invention

[0009] In order to overcome the problems that in the existing microphone pairing system, it is necessary to simultaneously press the pairing buttons of the transmitter and the receiver to complete the connection through wireless pairing, which is difficult to operate, the 2.4GHz signal has a large coverage range, and there is no device information verification mechanism, the present invention provides a pairing method for a microphone.

[0010] The technical solution of the present invention is as follows:

[0011] A pairing method for a microphone, which is applied to a wireless audio transmission system including a transmitter device and a receiver device, specifically includes the following steps:

[0012] S1. In response to a pairing instruction, the transmitter device activates a pairing mode and sends a verification signal including identity identification information to the receiver device based on a first communication protocol;

[0013] S2. The receiving end device parses the identity identification information in the verification signal and triggers the listening state of the second communication protocol based on the parsing result;

[0014] S3. The transmitting end device sends a connection request signal through the second communication protocol, and the connection request signal carries the identity identification information matching the verification signal;

[0015] S4. The receiving end device compares the identity identification information in the verification signal and the connection request signal. If the consistency meets the preset threshold, a pairing response signal is generated;

[0016] S5. After receiving the pairing response signal, the transmitting end device sends an encryption confirmation signal to the receiving end device, and the encryption confirmation signal contains the final identity identification verification information;

[0017] S6. After verifying the validity of the encryption confirmation signal, the receiving end device establishes a stable communication link with the transmitting end device to complete the pairing process.

[0018] In the present invention according to the above solution, the first communication protocol is a short-range directional communication protocol, including infrared communication or Bluetooth; the second communication protocol is a wide-area wireless communication protocol.

[0019] In the present invention according to the above solution, the identity identification information includes at least one of a device address, a dynamic pairing code, or an encrypted hash value.

[0020] In the present invention according to the above solution, the identity identification information contains a dynamically generated temporary pairing code, and the validity period of the temporary pairing code is associated with the triggering time of the pairing instruction and automatically expires after the pairing is completed.

[0021] In the present invention according to the above solution, the transmission range of the verification signal is dynamically adjusted by at least one of the following methods:

[0022] Adjust the signal transmission power of the first communication protocol;

[0023] Modify the carrier frequency or modulation method of the first communication protocol.

[0024] In the present invention according to the above solution, the encryption confirmation signal is generated by using an asymmetric encryption algorithm, and the verification process includes a timestamp check to prevent replay attacks.

[0025] In the present invention according to the above solution, the pairing instruction is triggered by a single user operation, and during the operation duration, the verification signal is repeatedly sent at a preset interval until the receiving end device completes the parsing.

[0026] According to the present invention of the above solution, the transmission of the verification signal and the connection request signal adopts a time-division duplex mechanism, which specifically includes:

[0027] The transmitting device suspends the signal transmission of the second communication protocol during the transmission of the verification signal;

[0028] After parsing the verification signal, the receiving device synchronously switches to the listening state of the second communication protocol through a preset time window to avoid signal interference.

[0029] According to the present invention of the above solution, the pairing method of the microphone further includes an exception handling step:

[0030] If the receiving device does not receive the encrypted confirmation signal within a preset time, it sends a retransmission request to the transmitting device;

[0031] In response to the retransmission request, the transmitting device resends the encrypted confirmation signal, and the number of retransmissions does not exceed a threshold.

[0032] According to the present invention of the above solution, after the receiving device completes the pairing, it stores the identity identification information in a non-volatile memory and automatically initiates a fast pairing process based on the stored information when powering on subsequently.

[0033] According to the present invention of the above solution, its beneficial effect lies in that a pairing method of a microphone of the present invention realizes efficient connection of devices through the collaborative interaction of the first communication protocol and the second communication protocol. The transmitting device transmits a verification signal containing identity verification information after triggering the pairing. The receiving device parses the verification signal and activates the wireless listening. Through a dual verification mechanism, it ensures that only authorized devices can be connected, effectively solving the problem of cross-region mispairing caused by the wide wireless signal coverage in the traditional solution.

[0034] The present invention only needs to trigger the pairing instruction at one end. The receiving device automatically parses the verification signal and completes the subsequent process, avoiding the cumbersome process of operating both the transmitting end and the receiving end in the traditional solution, and significantly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] It should be noted that the terms "including" and "having" and any variations thereof in the description and claims of the present invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices. Terms such as "arranged" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. The orientations or positions indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "bottom", etc. are based on the orientations or positions shown in the drawings, and are only for convenience of description and should not be construed as a limitation to the technical solution of the present application.

[0038] It should be noted that wireless microphones and receivers, as a set of products, are usually applied in audio acquisition scenarios, such as video shooting, live streaming, and audio recording scenarios. After the wireless microphone is powered on, the pairing connection between the transmitter and the receiver needs to be completed quickly. The traditional pairing methods mainly rely on the following two technologies:

[0039] 2.4GHz wireless pairing: Device connection is achieved through radio frequency signals, but the signal coverage range is wide (usually exceeding 10 meters), which easily leads to incorrect pairing of adjacent devices.

[0040] Infrared-assisted pairing: The pairing process is triggered by infrared signals. However, the existing solutions only start wireless pairing through simple infrared instructions, lack an information interaction mechanism, cannot verify the device identity, and there is still a risk of privacy leakage.

[0041] Problems existing in the existing wireless microphone pairing process:

[0042] (1) It is necessary to simultaneously press the pairing buttons of the transmitter and the receiver to complete the connection between the two through wireless pairing. The operation is difficult and the user experience is poor.

[0043] (2) The 2.4GHz signal has a large coverage range, and it is difficult to limit the physical distance between paired devices.

[0044] (3) There is no device information verification mechanism, which easily leads to incorrect pairing of non-target devices and affects the use.

[0045] Such as Figure 1As shown in the figure, this embodiment provides a pairing method for a microphone, which realizes efficient connection of devices through the collaborative interaction of the first communication protocol and the second communication protocol. After the transmitting device triggers pairing, it transmits a verification signal containing authentication information. The receiving device analyzes the verification signal and activates wireless listening. Through a dual verification mechanism, only authorized devices can be connected, effectively solving the problem of cross-region mispairing caused by the wide coverage of wireless signals in the traditional solution.

[0046] Only a single-end trigger of the pairing instruction is required, and the receiving device automatically analyzes the verification signal and completes the subsequent process, avoiding the cumbersome process of operating both the transmitting and receiving ends in the traditional solution, and significantly improving the user experience.

[0047] Specifically, the pairing method of the microphone is applied to a wireless audio transmission system, including a transmitting device and a receiving device, and specifically includes the following steps:

[0048] S1. In response to the pairing instruction, the transmitting device activates the pairing mode and sends a verification signal containing identity identification information to the receiving device based on the first communication protocol;

[0049] S2. The receiving device analyzes the identity identification information in the verification signal and triggers the listening state of the second communication protocol based on the analysis result;

[0050] S3. The transmitting device sends a connection request signal through the second communication protocol, and the connection request signal carries the identity identification information that matches the verification signal;

[0051] S4. The receiving device compares the identity identification information in the verification signal and the connection request signal. If the consistency meets the preset threshold, a pairing response signal is generated; if not, the pairing is rejected;

[0052] S5. After receiving the pairing response signal, the transmitting device sends an encrypted confirmation signal to the receiving device, and the encrypted confirmation signal contains the final identity identification verification information;

[0053] S6. After verifying the validity of the encrypted confirmation signal, the receiving device establishes a stable communication link with the transmitting device to complete the pairing process.

[0054] In one embodiment, the first communication protocol is a short-range directional communication protocol, including infrared communication or Bluetooth; the second communication protocol is a wide-area wireless communication protocol.

[0055] In one embodiment, the identity identification information includes at least one of a device address, a dynamic pairing code, or an encrypted hash value.

[0056] In one embodiment, the identity identification information includes a dynamically generated temporary pairing code. The validity period of the temporary pairing code is associated with the triggering time of the pairing instruction and automatically expires after the pairing is completed. Introducing a dynamic temporary code in the identity identification information enhances security and prevents a fixed address from being maliciously intercepted or forged. The temporary pairing code is dynamically generated based on the device's unique identifier and the real-time timestamp, and its validity period is strictly bound to the pairing triggering time. It automatically expires after expiration, eliminating the risk of a fixed address being maliciously intercepted and reused.

[0057] In one embodiment, the transmission range of the verification signal is dynamically adjusted by at least one of the following methods:

[0058] Adjust the signal transmission power of the first communication protocol;

[0059] Modify the carrier frequency or modulation method of the first communication protocol.

[0060] By adjusting the signal strength or carrier frequency of the first communication protocol, the effective pairing distance can be limited within the range of 1 - 5 meters to prevent interference from long-distance devices.

[0061] In one embodiment, the encrypted confirmation signal is generated using an asymmetric encryption algorithm, and the verification process includes timestamp verification to prevent replay attacks.

[0062] The encrypted confirmation signal uses an asymmetric encryption algorithm and embeds timestamp verification to ensure the uniqueness of the key generated for each pairing and prevent an attacker from forging a connection by intercepting historical signals.

[0063] In one embodiment, the pairing instruction is triggered by a single user operation, and during the operation duration, the verification signal is repeatedly sent at a preset interval until the receiving-end device completes parsing.

[0064] During the period when the user continuously presses the pairing button, the verification signal is repeatedly sent at a fixed interval to ensure that the receiving end can still successfully capture data in a complex environment. The user does not need to precisely control the duration of pressing the button, and the system automatically terminates the pairing process according to the signal reception status, reducing the operation threshold.

[0065] In one embodiment, the verification signal and the connection request signal are transmitted using a time-division duplex mechanism, specifically including:

[0066] The transmitting-end device pauses the signal transmission of the second communication protocol during the transmission of the verification signal;

[0067] After the receiving-end device parses the verification signal, it synchronously switches to the listening state of the second communication protocol through a preset time window to avoid signal interference.

[0068] The timing control technology in multi-protocol collaboration scenarios can avoid spectrum interference between the first and second communication protocols by controlling the signal transmission periods of the first and second communication protocols in a time-sharing manner, thereby improving the pairing success rate. For example, the transmitter suspends wireless signal transmission when sending an infrared verification signal, and the receiver switches to wireless monitoring after the analysis is completed.

[0069] In one embodiment, the microphone pairing method further includes an exception handling step:

[0070] If the receiving device does not receive the encryption confirmation signal within the preset time, it sends a retransmission request to the transmitting device;

[0071] The transmitting end device resends the encrypted confirmation signal in response to the retransmission request, and the number of retransmissions does not exceed a threshold.

[0072] When the wireless signal is interfered with by the environment (such as electromagnetic noise) and the encryption confirmation signal is lost, the receiving device actively initiates a retransmission request, and the transmitting end resends the data according to the preset rules (such as a maximum of 3 retransmissions). The active retransmission strategy solves the signal loss problem and improves the robustness of the pairing process.

[0073] In one embodiment, after completing the pairing, the receiving device stores the identity information in a non-volatile memory, and automatically initiates a quick pairing process based on the stored information when the device is powered on subsequently. The receiving device stores the verified identity information in a non-volatile memory, and directly calls the stored information to initiate quick pairing when the device is powered on subsequently, skipping the infrared verification step, reducing the time for repeated pairing operations, improving the user experience, and binding the device identity to ensure long-term security.

[0074] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0075] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A microphone pairing method, characterized in that: Applied to a wireless audio transmission system, including a transmitting device and a receiving device, specifically including the following steps: S1. In response to a pairing instruction, the transmitting device activates a pairing mode and sends a verification signal containing identity information to the receiving device based on a first communication protocol; S2, the receiving end device parses the identity information in the verification signal, and triggers the monitoring state of the second communication protocol based on the parsing result; S3, the transmitting end device sends a connection request signal through a second communication protocol, wherein the connection request signal carries identity information matching the verification signal; S4, the receiving end device compares the identity information in the verification signal and the connection request signal, and generates a pairing response signal if the consistency meets a preset threshold; S5. After receiving the pairing response signal, the transmitting device sends an encrypted confirmation signal to the receiving device, where the encrypted confirmation signal includes final identity verification information; S6. After verifying the validity of the encrypted confirmation signal, the receiving device establishes a stable communication link with the transmitting device to complete the pairing process.

2. A microphone pairing method according to claim 1, characterized in that: The first communication protocol is a short-range directional communication protocol, including infrared communication or Bluetooth; the second communication protocol is a wide-area wireless communication protocol.

3. A microphone pairing method according to claim 2, characterized in that: The identity information includes at least one of a device address, a dynamic pairing code, or an encrypted hash value.

4. A microphone pairing method according to claim 3, characterized in that: The identity information includes a dynamically generated temporary pairing code, the validity period of the temporary pairing code is associated with the triggering time of the pairing instruction, and the temporary pairing code automatically becomes invalid after the pairing is completed.

5. The microphone pairing method according to claim 1, characterized in that: The transmission range of the verification signal is dynamically adjusted by at least one of the following methods: adjusting the signal transmission power of the first communication protocol; Modify the carrier frequency or modulation method of the first communication protocol.

6. A microphone pairing method according to claim 1, characterized in that: The encrypted confirmation signal is generated using an asymmetric encryption algorithm, and the verification process includes a timestamp check to prevent replay attacks.

7. The microphone pairing method according to claim 1, characterized in that: The pairing instruction is triggered by a single user operation, and during the operation, the verification signal is repeatedly sent at a preset interval until the receiving device completes the analysis.

8. The microphone pairing method according to claim 1, characterized in that: The transmission of the verification signal and the connection request signal adopts a time division duplex mechanism, which specifically includes: The transmitting end device suspends signal transmission of the second communication protocol during the period of sending the verification signal; After parsing the verification signal, the receiving device synchronously switches to the monitoring state of the second communication protocol through a preset time window to avoid signal interference.

9. The microphone pairing method according to claim 1, characterized in that: The microphone pairing method further includes an exception handling step: If the receiving device does not receive the encryption confirmation signal within a preset time, a retransmission request is sent to the transmitting device; The transmitting end device resends the encrypted confirmation signal in response to the retransmission request, and the number of retransmissions does not exceed a threshold.

10. The microphone pairing method according to claim 1, characterized in that: After completing the pairing, the receiving device stores the identity information in a non-volatile memory, and automatically initiates a quick pairing process based on the stored information when it is subsequently powered on.

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