PC equipment and earphone insertion POP sound solving device thereof
By introducing a headphone sensing module and a pop-up sound resolution circuit into the PC device, the on/off state of the switching transistor is controlled, thus solving the pop-up sound problem when headphones are plugged in, improving the continuity of the audio signal and the user experience, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WEIBU INFORMATION
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-14
AI Technical Summary
Existing PC devices are prone to popping sounds when headphones are plugged in, which affects the user's listening experience.
By employing a headphone sensing module and a plug-in pop sound resolution circuit, the on/off state of the switching transistor is controlled to ensure a smooth transition of the audio signal when headphones are plugged in, thus avoiding the generation of pop sounds.
It effectively avoids the pop sound when headphones are plugged in, improves the user's listening experience, ensures the continuity and quality of audio signals, reduces manufacturing costs, and improves product reliability.
Smart Images
Figure CN224124235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of audio processing technology, specifically to a PC device and a headphone plug-in POP sound solution device. Background Technology
[0002] Currently, in the field of electronic technology, especially in the application of motherboard hardware module circuits, audio signal processing and transmission is a crucial technical aspect. The quality of audio signals directly affects the user's auditory experience, and signal discontinuities or transient changes often lead to sudden, discontinuous sounds during audio signal playback or processing, the so-called pop sounds. These sounds are usually caused by abrupt changes in the signal, such as a very large amplitude change from one sample point to the next, resulting in a step function or sharp pulse in the time domain, thus affecting sound quality.
[0003] In existing PC product designs, when a user plugs in headphones after the device is powered on, a noticeable popping or buzzing sound will occur. This phenomenon is prevalent in current PC products on the market, resulting in a poor audio experience for users. Specifically, the AU4 chip, a key component for switching between US and European standards, directly affects the output quality of headphone audio signals; however, due to a design flaw in the headphone jack, a popping sound is generated inside the headphones when they are plugged in, especially when the motherboard is operating normally.
[0004] In view of the above, this application is hereby submitted. Utility Model Content
[0005] This utility model discloses a PC device and a device for resolving pop noise when headphones are plugged in, which aims to solve the problem of pop noise when headphones are plugged in.
[0006] This utility model discloses a headphone insertion pop noise resolution device, which includes: a headphone sensing module and a pop noise resolution circuit. The first end of the headphone sensing module is used to electrically connect to the data terminal of a PC device, the second end of the headphone sensing module is used to connect to a headphone, the output terminal of the pop noise resolution circuit is electrically connected to the power terminal of the headphone sensing module, and the control terminal of the pop noise resolution circuit is used to electrically connect to the output terminal of the PC device.
[0007] The insertion pop sound resolution circuit is configured to power the headphone sensing module or disconnect the power supply to the headphone sensing module to avoid pop sound when the headphone is inserted.
[0008] Preferably, the headphone sensing module is model SGM2549DYN6G / TR.
[0009] Preferably, the plug-in POP sound solution circuit includes an audio interface pin (LI NE2_JD_CON), a first switch (QP847), and a second switch (PQ162). The output terminal of the external PC device is electrically connected to the control terminal of the first switch (QP847) through the audio interface pin (LI NE2_JD_CON). The first terminal of the first switch (QP847) is grounded, and the second terminal of the first switch (QP847) is electrically connected to the control terminal of the second switch (PQ162). The first terminal of the second switch (PQ162) is connected to the power supply, and the second terminal of the second switch (PQ162) is grounded.
[0010] Preferably, the first switch (QP847) is an NMOS transistor, the control terminal of the first switch (QP847) is the gate of the NMOS transistor, the first terminal of the first switch (QP847) is the source of the NMOS transistor, and the second terminal of the first switch (QP847) is the drain of the NMOS transistor.
[0011] Preferably, the second switch (PQ162) is a PMOS transistor, the control terminal of the second switch (PQ162) is the gate of the PMOS transistor, the first terminal of the second switch (PQ162) is the source of the PMOS transistor, and the second terminal of the second switch (PQ162) is the drain of the PMOS transistor.
[0012] This utility model also discloses a PC device, which includes a device body and a headphone insertion pop sound resolution device as described in any of the above. The first end of the headphone sensing module is electrically connected to the data end of the device body, and the control end of the insertion pop sound resolution circuit is electrically connected to the output end of the device body.
[0013] Preferably, the device further includes an indicator light module, wherein the output terminal of the device body is electrically connected to the input terminal of the indicator light module.
[0014] Preferably, the device further includes a sound warning module, wherein the output terminal of the device body is electrically connected to the input terminal of the sound warning module.
[0015] In summary, the headphone plug-in pop noise resolution device controls the power supply to the headphone sensing module by changing the output level, thus turning the switching transistor in the plug-in pop noise resolution circuit on or off. This allows the device to control the audio signal output when headphones are plugged in, thereby preventing pop noise from being generated. Attached Figure Description
[0016] Figure 1 This is a circuit diagram of the headphone sensing module provided in an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the interface circuit of the headphone insertion POP sound resolution device provided in this embodiment of the utility model;
[0018] Figure 3 This is a circuit diagram of the POP sound insertion solution circuit provided in this embodiment of the utility model. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0020] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0021] Please participate Figure 1 , Figure 2 The first embodiment of this utility model discloses a headphone insertion pop noise resolution device, which includes: a headphone sensing module and an insertion pop noise resolution circuit, wherein the first end of the headphone sensing module is used to electrically connect to the data terminal of a PC device, the second end of the headphone sensing module is used to connect to a headphone, the output terminal of the insertion pop noise resolution circuit is electrically connected to the power terminal of the headphone sensing module, and the control terminal of the insertion pop noise resolution circuit is used to electrically connect to the output terminal of the PC device;
[0022] The insertion pop sound resolution circuit is configured to power the headphone sensing module or disconnect the power supply to the headphone sensing module to avoid pop sound when the headphone is inserted.
[0023] Preferably, the headphone sensing module is model SGM2549DYN6G / TR.
[0024] Specifically, in this embodiment, the headphone insertion pop-up sound resolution device has two main components: a headphone sensing module and an insertion pop-up sound resolution circuit. These components work together to ensure that the user does not hear any sudden or discontinuous sounds when headphones are inserted. This aims to solve the problem of pop-up sounds occurring when headphones are inserted.
[0025] Specifically, the headphone sensing module is the core component of this device. Its first end is electrically connected to the data port of the PC device, and its second end is connected to the headphones. This design allows the module to sense the headphone's insertion status and adjust the circuit's operating state accordingly. The module uses the SGM2549DYN6G / TR, a headphone sensing chip that can automatically sense the grounding electrode and select the correct grounding path, thus avoiding popping noises when headphones are inserted.
[0026] The output of the pop-up sound resolution circuit is electrically connected to the power supply of the headphone sensor module, and its control terminal is electrically connected to the output of the PC device. This circuit is configured to power on or disconnect the headphone sensor module to prevent pop-up sounds when headphones are plugged in. When headphones are not plugged in, the circuit keeps the headphone sensor module powered off, thus preventing any audio output. Once headphones are detected as plugged in, the circuit powers on the module, ensuring a smooth audio signal transition and preventing pop-up sounds caused by sudden power-on.
[0027] Please see Figure 3 Preferably, the plug-in POP sound solution circuit includes an audio interface pin LI NE2_JD_CON, a first switching transistor QP847, and a second switching transistor PQ162. The output terminal of the external PC device is electrically connected to the control terminal of the first switching transistor QP847 through the audio interface pin LI NE2_JD_CON. The first terminal of the first switching transistor QP847 is grounded, and the second terminal of the first switching transistor QP847 is electrically connected to the control terminal of the second switching transistor PQ162. The first terminal of the second switching transistor PQ162 is connected to the power supply, and the second terminal of the second switching transistor PQ162 is grounded.
[0028] Preferably, the first switch QP847 is an NMOS transistor, the control terminal of the first switch QP847 is the gate of the NMOS transistor, the first terminal of the first switch QP847 is the source of the NMOS transistor, and the second terminal of the first switch QP847 is the drain of the NMOS transistor.
[0029] Preferably, the second switch PQ162 is a PMOS transistor, the control terminal of the second switch PQ162 is the gate of the PMOS transistor, the first terminal of the second switch PQ162 is the source of the PMOS transistor, and the second terminal of the second switch PQ162 is the drain of the PMOS transistor.
[0030] Specifically, in this embodiment, the pop-up sound resolution circuit is designed to address the pop-up sound problem that occurs when headphones are plugged in. The audio interface pin LI NE2_JD_CON is a key interface connecting the output of the external PC device and the control terminal of the first switching transistor QP847. When headphones are not plugged in, the signal level of the audio interface pin LI NE2_JD_CON is low. The first switching transistor QP847 remains off because its gate voltage is lower than its source voltage. At this time, the second switching transistor PQ162 is off because its gate voltage is lower than its source voltage, thus temporarily disconnecting the power supply to the headphone sensing module. The headphone sensing module will then not operate due to the lack of power, preventing audio output from the headphone jack and avoiding the pop-up sound caused by sudden headphone plugging.
[0031] When headphones are plugged in, the audio interface pin LI NE2_JD_CON signal level goes high, triggering the first switch QP847 to conduct. The first switch QP847 is an NMOS transistor, with its gate as the control terminal, its source grounded at the first terminal, and its drain at the second terminal. This design allows the first switch QP847 to respond quickly to changes in signal level, controlling the on / off state of the circuit. Immediately afterwards, the control terminal of the second switch PQ162 goes low. Since the second switch PQ162 is a PMOS transistor, it is now conducting, and the headphone sensing module is operational, resulting in OK headphone sound output.
[0032] In this embodiment, since the audio interface pin LI NE2_JD_CON is the last PIN of the headphone jack, the headphones will not output before they are fully plugged in, and thus no pop or buzzing sound will be generated before the headphones are fully plugged in.
[0033] In summary, the headphone plug-in pop noise resolution device significantly improves the user's listening experience by precisely controlling the on / off state of the switching transistors. It ensures that users are no longer disturbed by pop noise when headphones are plugged in, enjoying clearer and more continuous audio output. Furthermore, the device's design is simple and efficient, easily integrated into existing PC devices without complex external control inputs, reducing manufacturing costs and improving product reliability. By employing this specific combination of switching transistors and control logic, this device not only improves headphone jack compatibility and audio signal transmission quality but also provides an innovative solution for the field of electronics technology, possessing broad application prospects and commercial value.
[0034] The second embodiment of this utility model also discloses a PC device, which includes a device body and a headphone insertion POP sound resolution device as described in any of the above. The first end of the headphone sensing module is electrically connected to the data end of the device body, and the control end of the insertion POP sound resolution circuit is electrically connected to the output end of the device body.
[0035] Preferably, the device further includes an indicator light module, wherein the output terminal of the device body is electrically connected to the input terminal of the indicator light module.
[0036] Specifically, in this embodiment, the indicator module can be an LED indicator, electrically connected to the output terminal of the device body. This allows the device body to control the LED indicator to produce corresponding light prompts when it detects specific conditions or errors, such as a device malfunction or problem; for example, rapid flashing may indicate that the device is initializing, while slow flashing may indicate that the device has encountered an error. This visual prompt provides users with an intuitive way to identify and respond to system status, enhancing the user experience.
[0037] Furthermore, LED indicator lights are an ideal choice due to their low power consumption, fast response, and long lifespan. In this embodiment, LED indicator lights are used not only to indicate system status but also to warn users of potential abnormalities, such as data transmission errors, system overload, or hardware failure.
[0038] It should be noted that other types of indicator light modules may be used in other embodiments, which are not specifically limited here, but these solutions are all within the protection scope of this utility model.
[0039] Preferably, the device further includes a sound warning module, wherein the output terminal of the device body is electrically connected to the input terminal of the sound warning module.
[0040] Specifically, in this embodiment, the sound warning module can be a buzzer, electrically connected to the output terminal of the device body. When the device body detects a specific condition or error, such as a device malfunction, it controls the buzzer to produce a corresponding sound prompt. Buzzers, with their simplicity, low cost, and ease of integration, are an ideal choice. In this embodiment, the buzzer is used not only to indicate the system status but also to warn the user of possible abnormalities, such as data transmission errors, system overload, or hardware failure.
[0041] It should be noted that in other embodiments, other types of sound warning modules may also be used, which are not specifically limited here, but these solutions are all within the protection scope of this utility model.
[0042] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.
Claims
1. A headphone plug-in pop sound resolution device, characterized in that, include: The device includes an earphone sensing module and a pop-up sound resolution circuit. The first end of the earphone sensing module is electrically connected to the data terminal of a PC device, the second end of the earphone sensing module is connected to an earphone, the output terminal of the pop-up sound resolution circuit is electrically connected to the power terminal of the earphone sensing module, and the control terminal of the pop-up sound resolution circuit is electrically connected to the output terminal of the PC device. The insertion pop sound resolution circuit is configured to power the headphone sensing module or disconnect the power supply to the headphone sensing module to avoid pop sound when the headphone is inserted.
2. The headphone insertion pop sound resolution device according to claim 1, characterized in that, The headphone sensing module used is model SGM2549DYN6G / TR.
3. The headphone insertion pop sound resolution device according to claim 1, characterized in that, The plug-in POP sound solution circuit includes an audio interface pin (LINE2_JD_CON), a first switch (QP847), and a second switch (PQ162). The output terminal of the external PC device is electrically connected to the control terminal of the first switch (QP847) through the audio interface pin (LINE2_JD_CON). The first terminal of the first switch (QP847) is grounded, and the second terminal of the first switch (QP847) is electrically connected to the control terminal of the second switch (PQ162). The first terminal of the second switch (PQ162) is connected to the power supply, and the second terminal of the second switch (PQ162) is grounded.
4. A headphone insertion pop sound resolution device according to claim 3, characterized in that, The first switch (QP847) is an NMOS transistor. The control terminal of the first switch (QP847) is the gate of the NMOS transistor, the first terminal of the first switch (QP847) is the source of the NMOS transistor, and the second terminal of the first switch (QP847) is the drain of the NMOS transistor.
5. A headphone insertion pop sound resolution device according to claim 3, characterized in that, The second switch (PQ162) is a PMOS transistor. The control terminal of the second switch (PQ162) is the gate of the PMOS transistor. The first terminal of the second switch (PQ162) is the source of the PMOS transistor, and the second terminal of the second switch (PQ162) is the drain of the PMOS transistor.
6. A PC device, characterized in that, The device includes a main body and a headphone insertion pop sound resolution device as described in any one of claims 1 to 5, wherein the first end of the headphone sensing module is electrically connected to the data end of the main body, and the control end of the insertion pop sound resolution circuit is electrically connected to the output end of the main body.
7. A PC device according to claim 6, characterized in that, It also includes an indicator light module, wherein the output terminal of the device body is electrically connected to the input terminal of the indicator light module.
8. A PC device according to claim 6, characterized in that, It also includes a sound warning module, wherein the output terminal of the device body is electrically connected to the input terminal of the sound warning module.