An adaptive volume adjustment system and a communication device
By combining the main control module and the sensing module, the circuit structure of the volume adjustment system is simplified, the response efficiency of volume adjustment is improved, and the user experience is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIZHEN HLDG (KUNSHAN) CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-29
AI Technical Summary
Existing volume control systems rely on complex analysis algorithms, resulting in poor adjustment effectiveness and timeliness.
The system employs a combination of a main control module, a sensing module, and an output module. The sensing module detects the proximity of the target object to the carrier device and outputs a proximity sensing signal. The main control module controls the output module to adjust the volume, simplifying the circuit structure and adjustment process.
It improves the response efficiency of volume adjustment, simplifies the circuit structure, and enhances the user experience.
Smart Images
Figure CN224305810U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic equipment technology, and in particular to an adaptive volume control system and a communication device. Background Technology
[0002] The volume control technology of mobile communication devices has evolved from analog adjustment to digital intelligent control. Early feature phones used simple analog potentiometers for volume adjustment. With the development of digital signal processing technology and intelligent algorithms, modern smartphones have achieved highly intelligent multi-scenario adaptive volume control systems. This technological evolution has not only improved the user experience but also solved the problem of sound adaptation for mobile devices in different environments.
[0003] Among related technologies, common volume control techniques currently include digital signal processing, environmental noise detection, and noise feedback control. Digital signal processing primarily employs digital gain control algorithms, using DSP chips to precisely adjust audio signals, avoiding the noise and distortion problems of analog adjustment. Typical implementations include PGAs (Programmable Gain Amplifiers) and digital volume controller ICs. Environmental noise detection technology uses microphone arrays to collect ambient noise in real time, employs FFT (Fast Fourier Transform) algorithms to analyze noise spectrum characteristics, and combines AEC (Acoustic Echo Cancellation) technology to accurately assess noise levels. Noise feedback control employs a closed-loop feedback control system, dynamically adjusting volume output based on noise detection results. Common algorithms include PID control, fuzzy logic control, and machine learning models used in recent years.
[0004] However, current volume control systems have the following technical problems:
[0005] Current volume control systems rely on complex analysis algorithms, resulting in poor adjustment effectiveness and timeliness. Utility Model Content
[0006] Therefore, it is necessary to provide an adaptive volume control system and a communication device that can improve the efficiency of automatic volume adjustment.
[0007] In a first aspect, this application provides an adaptive volume adjustment system, comprising:
[0008] The main control module is used to implement the volume adjustment control of the volume adjustment system;
[0009] A sensing module, connected to the main control module, is used to sense the proximity of the target object to the carrier device and output a corresponding proximity sensing signal based on the proximity of the target object to the carrier device.
[0010] An output module is connected to the main control module, and the output module is controlled by the main control module to perform audio conversion and output;
[0011] The main control module is also used to control the output module to output audio at a volume corresponding to the proximity sensing signal based on the received proximity sensing signal.
[0012] In one embodiment, the sensing module includes a SAR sensor for detecting the proximity level, and the SAR sensor is also used to adjust the output electromagnetic radiation based on the measured proximity sensing signal.
[0013] In one embodiment, the system further includes:
[0014] A sensing module, connected to the sensing module, is used to work in conjunction with the sensing module to sense and detect the proximity of the target object to the carrier device.
[0015] In one embodiment, the sensing module includes a suspended metal sheet and / or an antenna.
[0016] In one embodiment, the sensing module includes a sensing capacitor connected to the ground terminal of the carrier device.
[0017] In one embodiment, the sensing module is provided with a plurality of sensing capacitors, which are connected in series to form a network.
[0018] Or multiple of the aforementioned sensing capacitors are arranged in a parallel array;
[0019] Or multiple sensing capacitors may be arranged in a star topology.
[0020] In one embodiment, the output module includes an audio front-end unit and a power amplifier unit, wherein:
[0021] The audio front-end unit is connected to the main control module and is used to convert and output the raw audio signal provided by the main control module;
[0022] The power amplifier unit is connected to the audio front-end unit and is used to amplify the audio signal processed by the audio front-end unit to a high-power output.
[0023] In one embodiment, the adaptive volume adjustment system further includes an encoding / decoding module connected to the power amplification unit, which is used to convert the audio signal between analog and digital signals.
[0024] In one embodiment, the output module includes several preset volume output modes in the audio conversion output, and the several volume output modes correspond to different volume ranges. The main control module is also used to determine the volume output mode that matches the proximity sensing signal based on the proximity sensing signal.
[0025] Secondly, this application also provides a communication device, which includes an adaptive volume adjustment system as described in any one of the first aspects.
[0026] The above-mentioned approach, derived from the technical features in the claims, can achieve the following beneficial effects in addressing the technical problems raised in the background art:
[0027] This application provides an adaptive volume adjustment system including a main control module, a sensing module, and an output module. The main control module controls the volume adjustment of the system. The sensing module, connected to the main control module, senses the proximity of a target object to a carrier device and outputs a corresponding proximity sensing signal based on this proximity. The output module, also connected to the main control module, is controlled by the main control module to perform audio conversion and output. The main control module further controls the output module to output audio at a volume corresponding to the received proximity sensing signal. In implementation, the main control module, as the core controller, processes the signals from the sensing module and controls the volume adjustment of the output module. The sensing module detects the proximity of a target object (e.g., a user) to a carrier device (e.g., a mobile phone) and outputs a proximity sensing signal (e.g., analog voltage, digital signal, or PWM signal) for the main control module to analyze. The output module adjusts its output volume under the control of the main control module. In application, this application uses a sensing module to detect the proximity of the target object, replacing the traditional process that requires detecting the specific sensing distance and adjusting the volume based on the correlation between the sensing distance and the volume. On the one hand, it eliminates the need for a separate distance sensor, simplifying the circuit structure of the volume adjustment system. On the other hand, it simplifies the volume adjustment process, improves the response efficiency of volume adjustment, and enhances the user experience. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 A schematic diagram of the system architecture of an adaptive volume adjustment system provided in this application embodiment;
[0030] Figure 2 This is a connection diagram of an adaptive volume adjustment system provided in an embodiment of this application;
[0031] Figure 3 This application provides a schematic diagram illustrating the connection of the output module of an adaptive volume control system according to an embodiment of the present application.
[0032] Figure 4 This is a schematic diagram of a communication device provided in an embodiment of this application.
[0033] Explanation of reference numerals in the attached diagram: 100, main control module; 200, sensing module; 300, output module; 310, audio front-end unit; 320, power amplifier unit; 400, sensing module; 500, encoding / decoding module; 600, sound outlet. Detailed Implementation
[0034] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0036] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.
[0037] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.
[0038] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.
[0039] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.
[0040] The volume control systems in related technologies rely on complex analysis algorithms, resulting in poor adjustment effects and timeliness.
[0041] To address the aforementioned issues, this application provides an adaptive volume control system and a communication device.
[0042] In one embodiment, such as Figure 1 As shown, the adaptive volume adjustment system provided in this application includes a main control module 100, a sensing module 200, and an output module 300.
[0043] The main control module 100 is used to implement volume adjustment control of the volume adjustment system. The main control module 100 is also used to control the output module 300 to output audio at a volume corresponding to the proximity sensing signal based on the received proximity sensing signal.
[0044] For example, the main control module 100 can be a control bridge capable of signal processing according to a pre-recorded program, such as an MCU (microcontroller), DSP (digital signal processor), or AP SOC (Application Processor System on Chip). Specifically, the main control module 100 can integrate an application processor, a graphics processor, a multimedia engine, a memory control bridge, and peripheral interfaces to achieve general computing and multimedia processing functions.
[0045] The sensing module 200 is connected to the main control module 100. The sensing module 200 is used to sense the proximity between the target object and the carrier device and output a corresponding proximity sensing signal based on the proximity between the target object and the carrier device.
[0046] For example, the sensing module 200 is used to detect the proximity of the target object to the carrier device. The sensing module 200 may include an infrared sensor (IR sensor), an ultrasonic sensor, a ToF (Time-of-Flight) sensor, a capacitive proximity sensor, etc. Specifically, the sensing module 200 may output a proximity sensing signal, such as an analog voltage, a digital signal, or a PWM signal, for the main control module 100 to analyze.
[0047] In one embodiment, the sensing module 200 may include a SAR sensor. The SAR sensor is used to detect the proximity of the carrier device to the target object. Furthermore, the SAR sensor can also be used to adjust the output electromagnetic radiation based on the measured proximity sensing signal. Thus, in application, while meeting the functional requirements of proximity sensing detection, the electromagnetic radiation of the sensing module can be controlled when the carrier device approaches the target object, reducing radiation leakage to the target object caused by the sensing requirements of the volume control system, thereby enhancing the safety and stability of the system.
[0048] The output module 300 is connected to the main control module 100, and the output module 300 is controlled by the main control module 100 to perform audio conversion and output.
[0049] By implementing the above-described adaptive volume control system, the following beneficial effects can be achieved:
[0050] This application provides an adaptive volume adjustment system including a main control module 100, a sensing module 200, and an output module 300. The main control module 100 is used to implement volume adjustment control of the system. The sensing module 200 is connected to the main control module 100 and is used to sense the proximity of a target object to a carrier device, and output a corresponding proximity sensing signal based on the proximity. The output module 300 is connected to the main control module 100 and is controlled by the main control module 100 to perform audio conversion and output. The main control module 100 is also used to control the output module 300 to output audio at a volume corresponding to the received proximity sensing signal. In implementation, the main control module 100, as the core controller, can process the signals from the sensing module 200 and control the volume adjustment of the output module 300. The sensing module 200 can detect the proximity of a target object (e.g., a user) to a carrier device (e.g., a mobile phone), and output a proximity sensing signal (e.g., analog voltage, digital signal, or PWM signal) for the main control module 100 to analyze. The output module 300 is controlled by the main control module 100 to adjust the output volume. In application, this application uses the sensing module 200 to detect the proximity of the target object, replacing the traditional process that requires detecting a specific sensing distance and adjusting the volume based on the correlation between the sensing distance and the volume. On the one hand, it eliminates the need for a separate distance sensor, simplifying the circuit structure of the volume adjustment system; on the other hand, it simplifies the volume adjustment process, improves the response efficiency of volume adjustment, and enhances the user experience.
[0051] In one embodiment, such as Figure 2 As shown, the adaptive volume adjustment system also includes a sensing module 400.
[0052] The sensing module 400 is connected to the sensing module 200 and works in conjunction with the sensing module 200 to sense and detect the proximity of the target object to the carrier device.
[0053] For example, the sensing module 400 can be a sensing device that cooperates with the sensing module 200, such as a suspended metal sheet and / or an antenna. Furthermore, the sensing module 400 may also include a sensing capacitor connected to the ground terminal of the carrier device. In applications where the sensing module 400 includes a sensing capacitor, the sensing module 400 can detect relevant physical quantities, such as displacement, pressure, and temperature, by measuring the change in capacitance of the sensing capacitor.
[0054] In one embodiment, the sensing module 400 is provided with a plurality of sensing capacitors, which are connected in series to form a network; or the plurality of sensing capacitors are arranged in parallel array; or the plurality of sensing capacitors are arranged in a star topology.
[0055] In this embodiment, the system includes a sensing module 400 that works in conjunction with the sensing module 200. The sensing module 400 helps to set and adjust the sensing direction and mode of the adaptive volume control system, thereby enhancing the sensing performance and flexibility of the sensing module 200. In multi-capacitor scenarios, the distribution and connection of multiple sensing capacitors can be configured according to application requirements, further improving the flexibility of the sensing module 400.
[0056] In one embodiment, it can be as follows Figure 3 As shown, the output module 300 includes an audio front-end unit 310 and a power amplifier unit 320.
[0057] The audio front-end unit 310 is connected to the main control module 100 and is used to convert and output the original audio signal provided by the main control module 100.
[0058] For example, the audio front-end unit 310 is mainly used to preprocess the raw audio signal, and the preprocessing may include analog-to-digital / digital-to-analog conversion, filtering, noise reduction, dynamic range control, etc. For example, the audio front-end unit 310 may include a digital signal processor.
[0059] The power amplifier unit 320 is connected to the audio front-end unit 310 and is used to amplify the audio signal processed by the audio front-end unit 310 to a high power output.
[0060] For example, the power amplifier unit 320 is mainly used to amplify the power of audio signal output, and can also be used to perform impedance matching, output efficiency optimization, and other processing. For example, the power amplifier unit 320 may include a Class D / AB amplifier, feedback control circuit, etc.
[0061] In this embodiment, the output module 300 specifically comprises an audio front-end unit 310 and a power amplification unit 320. The audio front-end unit 310 converts and outputs the original audio signal, and the power amplification unit 320 controls the power of the audio output, which helps to improve the flexibility of audio output control.
[0062] In one embodiment, it can be as follows Figure 3 As shown, the adaptive volume adjustment system also includes an encoding / decoding module 500.
[0063] The encoding / decoding module 500 is connected to the power amplifier unit 320 to realize the mutual conversion between analog and digital signals of audio signals.
[0064] In this embodiment, the system is also equipped with an encoding / decoding module 500. The encoding / decoding module 500 helps to realize the conversion and processing between analog signals and digital signals within the system, thereby improving the flexibility of system applications.
[0065] In one embodiment, the output module 300 includes several preset volume output modes in the audio conversion output, and the several volume output modes correspond to different volume ranges. The main control module 100 is also used to determine the volume output mode that matches the proximity sensing signal based on the proximity sensing signal.
[0066] For example, the volume output mode may include maximum volume mode, medium volume mode, minimum volume mode, etc. Specifically, the maximum volume, medium volume, and minimum volume described in this embodiment can be determined in advance by a technician based on the volume range that the output module 300 can output, for example, 10% of the volume range as minimum volume, 50% of the volume range as medium volume, and 100% of the volume range as maximum volume.
[0067] In this embodiment, the audio output control has several preset volume output modes, which helps to achieve quick volume adjustment.
[0068] Based on the same inventive concept, embodiments of this application also provide a communication device that can, as Figure 4 As shown, the communication device includes an adaptive volume control system as described in any of the above embodiments.
[0069] For example, the sensor module 400 in the adaptive volume adjustment system can be set near the earpiece sound outlet 600 of the communication device. The distance between the edge of the sensor module 400 and the sound outlet 600 can be set by the technician, such as 30mm, and the specific distance value is determined according to the product parameters.
[0070] It is understood that the aforementioned adaptive volume adjustment system and communication device may also take other forms, not limited to those mentioned in the above embodiments, as long as they can achieve the function of intelligent volume adjustment.
[0071] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.
[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0073] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.
Claims
1. An adaptive volume adjustment system, characterized in that, include: The main control module (100) is used to implement the volume adjustment control of the volume adjustment system; The sensing module (200) is connected to the main control module (100). The sensing module (200) is used to sense the proximity of the target object to the carrier device and output a corresponding proximity sensing signal based on the proximity of the target object to the carrier device. An output module (300) is connected to the main control module (100), and the output module (300) is controlled by the main control module (100) to perform audio conversion and output; The main control module (100) is also used to control the output module (300) to output audio at a volume corresponding to the proximity sensing signal based on the received proximity sensing signal.
2. The adaptive volume adjustment system according to claim 1, characterized in that, The sensing module (200) includes a SAR sensor, which is used to detect the proximity level and adjust the output electromagnetic radiation based on the measured proximity sensing signal.
3. The adaptive volume adjustment system according to claim 1, characterized in that, The system also includes: A sensing module (400) is connected to the sensing module (200) and is used to work in conjunction with the sensing module (200) to sense and detect the proximity of the target object to the carrier device.
4. The adaptive volume adjustment system according to claim 3, characterized in that, The sensing module (400) includes a suspended metal plate and / or an antenna.
5. The adaptive volume adjustment system according to claim 3, characterized in that, The sensing module (400) includes a sensing capacitor, which is connected to the grounding terminal of the carrier device.
6. The adaptive volume adjustment system according to claim 5, characterized in that, The sensing module (400) is provided with a plurality of sensing capacitors, and the plurality of sensing capacitors are connected in series to form a network; Or multiple of the aforementioned sensing capacitors are arranged in a parallel array; Or multiple of the sensing capacitors are arranged in a star topology.
7. The adaptive volume adjustment system according to claim 1, characterized in that, The output module (300) includes an audio front-end unit (310) and a power amplifier unit (320), wherein: The audio front-end unit (310) is connected to the main control module (100) and is used to convert and output the original audio signal provided by the main control module (100); The power amplification unit (320) is connected to the audio front-end unit (310) and is used to amplify the audio signal processed by the audio front-end unit (310) to a high power output.
8. The adaptive volume adjustment system according to claim 7, characterized in that, The adaptive volume adjustment system further includes an encoding / decoding module (500), which is connected to the power amplification unit (320) and is used to realize the mutual conversion between analog and digital signals of the audio signal.
9. The adaptive volume adjustment system according to claim 1, characterized in that, The output module (300) includes several preset volume output modes in the audio conversion output, and the several volume output modes correspond to different volume ranges respectively. The main control module (100) is also used to determine the volume output mode that matches the proximity sensing signal according to the proximity sensing signal.
10. A communication device, characterized in that, The communication device includes an adaptive volume control system as described in any one of claims 1 to 9.