Microphone type detection system and method

Abstract

The invention discloses a microphone type detection system and method. The detection system comprises a microphone connection interface used for being electrically connected with the microphone, a power supply used for providing microphone driving voltage and a detection module. In one embodiment, the method includes electrically connecting a microphone with a microphone connection interface, where the microphone connection interface is electrically connected with a power supply and a detection module. Then, the detection module inputs a test voltage to the microphone. Then, the detection module detects a tested value of the microphone to the test voltage. And finally, selecting to turn on or turn off the power supply according to the measured value.

Description

TECHNICAL FIELD

[0001] The present application relates to a microphone detection technology, and in particular, to a microphone type detection system and method. BACKGROUND

[0002] The conventional microphone types mainly include moving coil type microphone and condenser type microphone. The main difference between these two types of microphones is the power supply method. The moving coil type microphone uses a thin film connected to a coil to generate an induced current by the vibration of the external environment sound and the magnet, and generates a sound signal by processing the induced current. The condenser type microphone has a capacitor composed of a substrate and a thin film, and the two poles of the capacitor form a potential difference by applying a voltage, which is generally 48 volts provided by a power source. Therefore, when the condenser microphone receives sound, the distance between the two poles of the capacitor will change with the vibration of the sound, and the potential difference between the two poles of the capacitor will also change, so that a sound signal of different intensity can be obtained.

[0003] For the user, it is not easy to intuitively distinguish the microphone type from the appearance, so the user may forget to turn on or off the power supply because of not understanding the microphone type. If the power supply is not turned on to apply voltage to the capacitor in the condenser microphone, the sound signal cannot be generated. If the power supply is turned on to apply voltage to the moving coil type microphone, it will generate noise and even be damaged. Therefore, how to let the user not to judge the microphone type and whether to turn on or off the power supply, so that the user can use the microphone more simply, is an important issue.

[0004] In view of the above, a microphone type detection system and method are needed to solve the problems of the conventional technology. SUMMARY

[0005] The present application provides a microphone type detection system and method, which uses a test voltage to supply the microphone, and detects the measured value generated by the response of the microphone to the test voltage to confirm the microphone type. Therefore, when the user uses the microphone, he does not need to judge the type of the microphone, and can directly use it by inserting the signal terminal of the microphone into the device, so as to simplify the operation and reduce the time spent by the user for installation environment debugging.

[0006] In one embodiment, the present application provides a microphone type detection system, comprising a microphone connection interface, a power supply, and a detection module. The microphone connection interface is configured to electrically connect with a microphone. The power supply is configured to provide a driving voltage for the microphone. The detection module is electrically connected with the microphone connection interface and the power supply. The detection module provides a test voltage to the microphone and receives a measured value of the microphone in response to the test voltage. If the measured value changes over time during the detection, the power supply is turned on to provide the driving voltage to the microphone.

[0007] In one embodiment, the present application provides a microphone type detection method, which is applicable to a microphone type detection system having a microphone connection interface, a power supply, and a detection module. The detection method first electrically connects a microphone with the microphone connection interface. Then, the detection module inputs a test voltage to the microphone. Next, the detection module detects a measured value of the microphone in response to the test voltage. Finally, if the measured value changes over time during the detection, the power supply is turned on to provide a driving voltage to the microphone. BRIEF DESCRIPTION OF DRAWINGS

[0008] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0009] Figure 1 An embodiment of a microphone type detection system of the present application.

[0010] Figure 2 Another embodiment of a microphone type detection system of the present application.

[0011] Figure 3 Another embodiment of a microphone type detection system of the present application.

[0012] Figure 4 A flowchart of an embodiment of a microphone type detection method of the present application.

[0013] Figure 5A With Figure 5B A response curve diagram of different microphone types in response to a test voltage.

[0014] The accompanying drawings are explained as follows:

[0015] 2 - microphone type detection system; 20 - housing; 21 - microphone connection interface; 22 - power supply; 23 - detection module; 230 - test voltage supply unit; 231 - sensor; 232 - control unit; 233 - voltage dividing element; 24 - audio output unit; 90 - microphone; 900 - terminal interface; 3 - method; 30-33 - steps. DETAILED DESCRIPTION

[0016] Various exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, exemplary embodiments are shown. Indeed, the application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. Like reference numerals refer to like elements throughout. Exemplary embodiments of a microphone type detection system and method will be described below in conjunction with the drawings, however, the following embodiments are not intended to limit the present application.

[0017] Referring to Figure 1 As shown in the figure, it is a schematic diagram of an embodiment of the microphone type detection system of the present application. In this embodiment, the microphone type detection system 2 includes a housing 20, a microphone connection interface 21, a power supply 22 and a detection module 23. In this embodiment, the power supply 22 is, for example, a phantom power supply that can provide a voltage of 48 volts, but the present application is not limited thereto, as long as various forms of power supply and voltage values that can be used to drive the capacitor in the condenser microphone are within the scope of the present application. In addition, in this embodiment, the microphone type detection system 2 is a separate device and therefore has a housing 20. Those skilled in the art can also implement the microphone type detection system 2 in a general microphone audio receiving device according to design requirements. As long as the audio device has a power supply capable of driving the capacitor in the condenser microphone, it can be used in the present application and is within the scope of the present application. The microphone connection interface 21 is provided on the housing 20 for electrical connection with the microphone 90. The microphone connection interface 21 can be an XLR interface, a 6.35mm TRS terminal or a TS terminal, etc., which can be determined according to the needs of the user and is not limited. In this embodiment, the microphone connection interface 21 is in the form of a female connector. The terminal interface 900 of the microphone 90 is in the form of a male connector.

[0018] The power supply 22 is provided in the housing 20 to provide a driving voltage for the microphone 90. In this embodiment, the power supply 22 supplies a voltage of 48 volts, but is not limited thereto. In this embodiment, the microphone type detection system 2 further has an audio output unit 24 for outputting the sound signal of the microphone 90 to an amplifier through wireless or wired means, which is a conventional technology and will not be described here. The detection module 23 is electrically connected with the microphone connection interface 21 and the power supply 22. The detection module 23 provides a test voltage to the microphone 90, and determines whether to turn on or off the power supply 22 according to the response of the microphone 90 to the test voltage. For example, the detection module 23 can output a control signal to the switch of the power supply 22 to control the switch of the power supply 22. The switch technology is a conventional technology and will not be described here.

[0019] In one embodiment, as shown in FIG. 1, the diagram is a schematic view of one embodiment of the microphone type detection system of the present application. In this embodiment, the detection module 23 further comprises a test voltage supply unit 230, a sensor 231, and a control unit 232. The test voltage supply unit 230 is electrically connected to the microphone connection interface 21 to provide a test voltage to the microphone 90. The sensor 231 is electrically connected to the microphone 90 to detect a measured value generated by the microphone 90 in response to the test voltage. The control unit 232 is electrically connected to the sensor 231 to control the switch of the power supply 22 according to the measured value. For example, the control unit 232 can output a control signal to the switch of the power supply 22 to control the switch of the power supply 22. The switch technology is a conventional technology and will not be described here. Figure 2

[0020] In another embodiment, as shown in FIG. 2, the diagram is a schematic view of another embodiment of the microphone type detection system of the present application. In this embodiment, it is basically similar to the embodiment shown in FIG. 1, except that the embodiment shown in FIG. 2 does not use the test voltage supply unit 230 and the sensor 231 as shown in FIG. 1, but uses a voltage dividing element 233 and a control unit 232 to detect the response. In this embodiment, the voltage dividing element 233 is electrically connected to the power supply 22 and the microphone 90 to convert the driving voltage supplied by the power supply 22 into a test voltage to provide to the microphone 90. The control unit 232 is electrically connected to the power supply 22 to receive and control the switch of the power supply 22 according to the measured value generated by the microphone 90 in response. For example, the control unit 232 can output a control signal to the switch of the power supply 22 to control the switch of the power supply 22. The switch technology is a conventional technology and will not be described here. Figure 3 Figure 2 Figure 2

[0021] Please refer to FIG. 3, which is a schematic view of one embodiment of the microphone type detection method of the present application. In this embodiment, the detection method 3 comprises the following steps. First, in step 30, a microphone type detection system is provided, and the microphone 90 is electrically connected to the microphone connection interface 21, wherein the microphone connection interface 21 is electrically connected to the power supply 22 and the detection module 23. In this step, the microphone type detection system can use the system as shown in FIG. 1. The terminal interface 900 of the microphone 90 is inserted into the microphone connection interface 21, so that the microphone 90 is electrically connected to the entire microphone type detection system 2. Figure 4 Figures 1-3

[0022] Next, in step 31, the detection module 23 inputs a test voltage to the microphone 90. In this step, the test voltage supply unit 230 provides a test voltage to the microphone 90. The sensor 231 detects a measured value generated by the microphone 90 in response to the test voltage. The control unit 232 controls the switch of the power supply 22 according to the measured value. For example, the control unit 232 can output a control signal to the switch of the power supply 22 to control the switch of the power supply 22. The switch technology is a conventional technology and will not be described here. Figures 1-2 ​​​​​​As shown, the test voltage supply unit 230 in the detection module 23 outputs a test voltage, which is transmitted to the microphone 90 via the microphone connection interface 21 and the terminal interface 900. In another embodiment of step 31, as... Figure 3 As shown, the voltage can be obtained from the power supply 22 using the voltage divider element 233, and then divided as the test voltage and transmitted to the microphone 90.

[0023] Next, step 32 is performed, causing the detection module 23 to detect the measured value of the test voltage from the microphone 90. In this step, the circuitry within the microphone 90 outputs the measured value in response to the test voltage, which is then transmitted back to the detection module 23 via the terminal interface 900 and the microphone connection interface 21. The sensor 231 in the detection module 23 receives the measured value and transmits it back to the control unit 232. In this embodiment, Figure 5A and 5B As shown, sensor 231 continuously detects the measured value during a detection period t1 to t2 and sends the measured value back to control unit 232. Finally, step 33 is performed: if the measured value changes over time during the detection period, the power is turned on to provide a driving voltage to the microphone; if the measured value does not change over time during the detection period, the power is not turned on. In one embodiment of step 33, as... Figure 5A As shown, since the measured value (voltage) sensed during the detection period t1~t2 is V1 and does not change, it means that microphone 90 is a dynamic microphone and does not require power supply 22. Therefore, detection module 23 turns off power supply 22. Conversely, if the measured value increases with time during the detection period t1~t2, such as Figure 5B As shown, during the detection period t1~t2, the measured value (voltage) changes from V2 to V3, indicating that the measured value increases with time. Therefore, microphone 90 is a condenser microphone, which is why it has this characteristic (for example, due to the capacitance effect, the voltage curve of the measured value during the detection period is as shown). Figure 5B (The change in voltage), in this case, the control unit 232 will control the power supply 22 to start supplying the operating voltage, which is 48 volts in this embodiment, to the microphone 90. Furthermore, the curve of the change in the measured value is not limited to, for example... Figure 5A and Figure 5B As shown, any feedback that has or does not have a capacitive effect in response to the test voltage is within the scope of protection of this application.

[0024] It should be noted that the embodiments of steps 32 and 33 described above are based on... Figures 1-2 To implement this system, in another embodiment, such as... Figure 3 As shown, the measured value can also be directly detected using a specific pin of the control unit 232, and then a judgment can be made regarding whether the measured value during the detection period is as follows. Figure 5A For fixed or as? Figure 5BThe change in the microphone 90 determines the type of microphone, as described previously and will not be repeated here. The control unit 232 then turns the power supply 22 on or off based on the type of microphone 90.

[0025] In summary, the microphone type detection system and method provided in this application identify the microphone type by detecting whether the microphone generates a capacitance effect in response to the measured value fed back by the test voltage during the detection period. As a result, users do not need to determine the type of microphone when using it; they can simply plug the microphone's signal terminal into the device for direct use, thus simplifying operation and reducing the time users need to spend troubleshooting the installation environment.

[0026] The above description is merely a preferred embodiment or example of the technical means employed in this application to solve the problem, and is not intended to limit the scope of the patent application. Any changes or modifications that conform to the wording of the patent application or are made in accordance with the scope of the patent application are covered by the scope of the patent application.

Claims

1. A microphone type detection system, characterized in that, include: Microphone connection interface, used for electrical connection to the microphone; Power supply, used to provide the microphone driving voltage; as well as The detection module is electrically connected to the microphone interface and the power supply. The detection module provides a test voltage to the microphone and receives the measured value of the microphone in response to the test voltage. If the measured value changes over time during the detection period, the power supply is turned on to provide the driving voltage to the microphone.

2. The microphone type detection system according to claim 1, characterized in that, If the measured value does not change over time during the detection period, the power supply will not be turned on.

3. The microphone type detection system according to claim 1, characterized in that, The detection module further includes: A test voltage supply unit is electrically connected to the microphone connection interface to provide the test voltage to the microphone; A sensor, electrically connected to the microphone, is used to detect the measured value; as well as A control unit is electrically connected to the sensor to turn the power supply on or off based on the measured value.

4. The microphone type detection system according to claim 1, characterized in that, The detection module further includes: A voltage divider element is electrically connected to the power supply and the microphone, and the voltage divider element is used to convert the driving voltage supplied by the power supply into the test voltage; as well as A control unit is electrically connected to the power supply, and the control unit receives and turns the power supply on or off according to the measured value.

5. A microphone type detection method, applicable to a microphone type detection system having a microphone connection interface, a power supply, and a detection module, characterized in that, The microphone type detection method includes: Electrically connect the microphone to the microphone interface; The detection module inputs a test voltage to the microphone; The detection module detects the microphone's response to the measured value of the test voltage; and If the measured value changes over time during the detection period, the power supply is turned on to provide a driving voltage to the microphone.

6. The microphone type detection method according to claim 5, characterized in that, If the measured value does not change over time during the detection period, the power supply will not be turned on.

7. The microphone type detection method according to claim 5, characterized in that, Inputting the test voltage further includes providing the test voltage to the microphone using a test voltage supply unit.

8. The microphone type detection method according to claim 5, characterized in that, The input of the test voltage further includes using a voltage divider element to convert the voltage supplied by the power supply into the test voltage.

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