Power self-adjusting sound processing apparatus, processing method, and cochlear implant device

Abstract

The application provides a sound processing device, a processing method and a cochlear implant device with automatic power adjustment, the sound processing device comprising: a transmitting antenna; a radio frequency transceiver module configured to output a transmitting voltage for the transmitting antenna to work; a magnetic induction module configured to sense a magnetic field intensity and output an electric signal corresponding to the magnetic field intensity; a sound processing and control module configured to receive the transmitting voltage fed back by an output port of the radio frequency transceiver module and receive the electric signal output by the magnetic induction module, and determine a setting parameter corresponding to a magnet model according to a difference degree of the transmitting voltage and the electric signal; and a voltage conversion module configured to adjust the transmitting voltage of the radio frequency transceiver module according to the setting parameter. The application overcomes the shortcomings of the prior art that the transmitting power of the sound processor cannot be dynamically adjusted according to the actual use of the user or the adjustment mechanism is too complex and cannot be easily realized.

Description

Technical Field

[0001] This application belongs to the technical field of electronic circuits, and relates to a sound processing device, and more particularly to a sound processing device, processing method and cochlear implant device with automatic power adjustment. Background Technology

[0002] A cochlear implant is an electronic device that uses an external speech processor to convert sound into coded electrical signals. These signals are then transmitted through an implanted electrode system to directly stimulate the auditory nerve, restoring or reconstructing hearing function in deaf individuals. In recent years, with advancements in electronic technology, computer technology, phonetics, electrophysiology, materials science, and otomicrosurgery, cochlear implants have moved from experimental research to clinical application. They are now a standard treatment for severe to total deafness worldwide.

[0003] The sound processor, or sound processing device, is the external part of the cochlear implant, while the implant itself is the internal part, containing an implanted magnet.

[0004] Currently, the thickness of the scalp flap varies among implant recipients, and protective sleeves and other accessories are added to the sound processor later. The different thicknesses of the scalp and the protective sleeve cause variations in coupling distance, resulting in significant differences in power consumption. Existing sound processors operate with fixed parameters for transmission power, making it impossible to dynamically adjust power consumption based on the user's actual usage. Summary of the Invention

[0005] This application provides a sound processing device, processing method, and cochlear implant device with automatic power adjustment, which solves the problem that the transmission power of existing sound processors cannot be dynamically adjusted according to the user's actual usage or the adjustment mechanism is too complex to be easily implemented.

[0006] In a first aspect, this application provides a sound processing device with automatic power adjustment, the sound processing device comprising: a transmitting antenna; a radio frequency transceiver module connected to the transmitting antenna and configured to output a transmitting voltage to power the transmitting antenna; a magnetic induction module configured to sense magnetic field strength and output an electrical signal corresponding to the magnetic field strength; a sound processing and control module connected to the radio frequency transceiver module and the magnetic induction module respectively, configured to receive the transmitting voltage fed back from the output port of the radio frequency transceiver module and receive the electrical signal output by the magnetic induction module, and determine setting parameters corresponding to the magnet model based on the degree of difference between the transmitting voltage and the electrical signal; and a voltage conversion module connected to the sound processing and control module and the radio frequency transceiver module respectively, configured to adjust the transmitting voltage of the radio frequency transceiver module according to the setting parameters.

[0007] In one implementation of the first aspect, the magnetic induction module includes a Hall sensor; the Hall sensor is configured to sense changes in the magnetic field strength of the implant magnet.

[0008] In one implementation of the first aspect, the magnetic induction module further includes an operational amplifier circuit; the operational amplifier circuit is connected to the Hall sensor and the sound processing and control module respectively, and is configured to amplify the signal collected by the Hall sensor to obtain the electrical signal.

[0009] In one implementation of the first aspect, the sound processing device includes an operating mode; in the operating mode, the sound processing and control module is configured to receive the transmission voltage fed back from the output port of the radio frequency transceiver module and the electrical signal output by the magnetic induction module, and determine the setting parameters corresponding to the magnet model based on the degree of difference between the transmission voltage and the electrical signal.

[0010] In one implementation of the first aspect, the sound processing device includes a calibration mode; in the calibration mode, the sound processing and control module is configured to receive electrical signals output by the magnetic induction module multiple times, determine the magnet model of the implanted magnet based on the multiple electrical signals, and operate using the setting parameters corresponding to the magnet model when the sound processing device is initially started.

[0011] In one implementation of the first aspect, the sound processing and control module is configured to calculate the difference between the transmitted voltage and the electrical signal, and adjust the setting parameter up or down by 2 levels in response to the absolute value of the difference being within a first difference threshold range; adjust the setting parameter up or down by 1 level in response to the absolute value of the difference being within a second difference threshold range; and not adjust the setting parameter in response to the absolute value of the difference being within a third difference threshold range.

[0012] In one implementation of the first aspect, the sound processing and control module is configured to adjust the setting parameter in response to a first difference absolute value being within a first difference threshold range and the duration meeting a first time threshold condition; otherwise, the setting parameter is not adjusted. The sound processing and control module is also configured to adjust the setting parameter in response to a second difference absolute value being within a second difference threshold range and the duration meeting a second time threshold condition; otherwise, the setting parameter is not adjusted. Furthermore, the sound processing and control module is configured to determine that the user has removed the sound processing device in response to an invalid received electrical signal, and therefore does not adjust the setting parameter.

[0013] In one implementation of the first aspect, the voltage conversion module includes a voltage conversion unit or a boost circuit; the setting parameters include a voltage level number or a PWM signal; the voltage conversion unit is configured to adjust the transmit voltage of the RF transceiver module according to the voltage level number; and the boost circuit is configured to adjust the transmit voltage of the RF transceiver module according to the PWM signal.

[0014] Secondly, this application provides a sound processing method with automatic power adjustment, the method comprising: outputting a transmission voltage to enable a transmitting antenna to operate; sensing a magnetic field strength and outputting an electrical signal corresponding to the magnetic field strength; receiving the transmission voltage and the electrical signal, determining setting parameters corresponding to a magnet model based on the degree of difference between the transmission voltage and the electrical signal; and adjusting the transmission voltage according to the setting parameters.

[0015] Thirdly, this application provides a cochlear implant device, which includes: the sound processing device.

[0016] As described above, the power-adjustable sound processing device, processing method, and cochlear implant device described in this application have the following beneficial effects:

[0017] This application receives the transmission voltage fed back from the output port of the RF transceiver module and the electrical signal output from the magnetic induction module through a sound processing and control module. It determines the setting parameters corresponding to the magnet model based on the degree of difference between the transmission voltage and the electrical signal. Furthermore, a voltage conversion module adjusts the transmission voltage of the RF transceiver module according to the setting parameters, forming a closed-loop feedback system that dynamically adjusts the power based on the user's actual usage. This application overcomes the shortcomings of existing sound processors, which either cannot dynamically adjust the transmission power according to the user's actual usage or have overly complex adjustment mechanisms that are difficult to implement. This application does not require adding functional modules to the cochlear implant circuitry, does not alter the existing communication of the implanted part, and makes transmission power adjustment convenient, practical, and safe. Attached Figure Description

[0018] Figure 1 The diagram shown is a structural schematic of the sound processing device with automatic power adjustment described in an embodiment of this application.

[0019] Figure 2 The diagram shown is a schematic diagram of the power-adjustable sound processing device described in an embodiment of this application.

[0020] Figure 3 The diagram shows the signal flow of the automatic power adjustment sound processing device described in the embodiments of this application.

[0021] Figure 4The diagram shown is a circuit diagram of the magnetic induction module of the sound processing device with automatic power adjustment described in an embodiment of this application.

[0022] Figure 5 The diagram shown illustrates the relationship between the magnetic field strength and voltage of the power-adjustable sound processing device described in this application embodiment.

[0023] Figure 6 The diagram shown is a circuit diagram of the voltage conversion module of the sound processing device with automatic power adjustment described in an embodiment of this application.

[0024] Figure 7 The diagram shown is a schematic flowchart of the automatic power adjustment sound processing method described in the embodiments of this application.

[0025] Figure 8 The diagram shown is a calibration flowchart of the sound processing method with automatic power adjustment described in the embodiments of this application.

[0026] Figure 9 The diagram shown is a structural schematic of the cochlear implant device described in an embodiment of this application.

[0027] Component designation explanation

[0028] 1. Automatic power adjustment sound processing device

[0029] 11 Transmitting Antenna

[0030] 12 RF transceiver modules

[0031] 13 Magnetic Induction Module

[0032] 14. Sound Processing and Control Module

[0033] 15 Voltage Conversion Module

[0034] Steps S71 to S74

[0035] Steps S81 to S86 Detailed Implementation

[0036] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] Table 1, a power consumption comparison table, shows the power consumption data for different coupling distances. The maximum and minimum values ​​differ by approximately 35%, and within similar distances, there is a difference of about 10%. This demonstrates that using a uniform transmission voltage would result in significant power loss. This application can adjust the transmission voltage or power of the sound processor based on the user's actual coupling distance (including scalp thickness and the thickness of the protective cover), thereby reducing power consumption and significantly extending product lifespan.

[0039] Table 1 Power Consumption Comparison Table

[0040]

[0041] The technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] Please see Figure 1 The image shown is a schematic diagram of the automatic power adjustment sound processing device described in an embodiment of this application. Figure 1 As shown in the figure, this application provides a sound processing device 1 with automatic power adjustment, which specifically includes: a transmitting antenna 11, a radio frequency transceiver module 12, a magnetic induction module 13, a sound processing and control module 14, and a voltage conversion module 15.

[0043] The radio frequency transceiver module 12 is connected to the transmitting antenna 11 and is configured to output a transmitting voltage to power the transmitting antenna.

[0044] The magnetic induction module 13 is configured to sense the magnetic field strength and output an electrical signal corresponding to the magnetic field strength.

[0045] The sound processing and control module 14 is connected to the radio frequency transceiver module 12 and the magnetic induction module 13 respectively, and is configured to receive the transmission voltage fed back from the output port of the radio frequency transceiver module 12 and the electrical signal output by the magnetic induction module 13, and determine the setting parameters corresponding to the magnet model according to the degree of difference between the transmission voltage and the electrical signal.

[0046] The voltage conversion module 15 is connected to the sound processing and control module 14 and the radio frequency transceiver module 12 respectively, and is configured to adjust the transmission voltage of the radio frequency transceiver module 12 according to the setting parameters.

[0047] In one embodiment, the magnetic induction module 13 includes a Hall sensor.

[0048] The Hall sensor is configured to sense changes in the magnetic field strength of the implant magnet.

[0049] Please see Figure 2 The diagram shows the structural principle of the sound processing device with automatic power adjustment described in the embodiments of this application. Figure 2 As shown, the magnetic induction module 13 includes a linear Hall effect sensor. The linear Hall effect sensor is configured to sense changes in the magnetic field strength of the implanted magnet.

[0050] A linear Hall element is a magnetic sensor with analog signal output. Its output voltage changes linearly with magnetic field density, and it outputs different voltages under different magnetic fields.

[0051] In one embodiment, the magnetic induction module 13 further includes an operational amplifier circuit.

[0052] The operational amplifier circuit is connected to the Hall sensor and the sound processing and control module, respectively, and is configured to amplify the signal collected by the Hall sensor to obtain the electrical signal.

[0053] like Figure 2 As shown, the operational amplifier circuit can specifically be an operational amplifier and a circuit structure built around it to realize operational amplification function. The voltage of the linear Hall sensor is amplified by the operational amplifier to obtain the electrical signal, which is then transmitted to the sound processing and control module.

[0054] Please see Figure 3 The image shows a schematic diagram of the signal flow of the automatic power adjustment sound processing device described in the embodiments of this application. Figure 3 As shown, the sound processing and control module 14 is configured to communicate with the radio frequency transceiver module 12 via SPI (Serial Peripheral Interface), receive the transmit voltage Vo fed back from the output port of the radio frequency transceiver module 12, and receive the electrical signals Vva1~10 output by the magnetic induction module 13 (wherein, the linear Hall sensor in the magnetic induction module 13 senses the voltage Va1~10, and the operational amplifier amplifies the sensed voltage Va1~10 and outputs the electrical signals Vva1~10). The module determines the setting parameters corresponding to the magnet model based on the degree of difference between the transmit voltage Vo and the electrical signals Vva1~10. The voltage conversion module 15 is connected to the sound processing and control module 14 and the radio frequency transceiver module 12, and is configured to adjust the transmit voltage Volt1~10 of the radio frequency transceiver module according to the setting parameters D1~DN or PWM1~10.

[0055] Please see Figure 4 The diagram shown is a circuit diagram of the magnetic induction module of the sound processing device with automatic power adjustment described in an embodiment of this application. Figure 4 The diagram illustrates the circuit principle of the magnetic induction module 13. The Hall effect device U1 is connected to the voltage isolation device U2 via resistor R1, and then to the voltage amplification device U3 via resistor R4. Under different magnetic field strengths, it outputs different voltages Vout (i.e., electrical signals Vva1~10). Figure 4 As shown, the voltage of the Hall device is isolated and amplified by the operational amplifier and then supplied to the sound processing and control module 14 for acquisition. The data in this application is based on the standard magnet.

[0056] Please see Figure 5 The diagram shows the relationship between the magnetic field strength and voltage of the power-adjustable sound processing device described in this embodiment. Figure 5 As shown, under different magnetic field strengths (GAUSS), i.e., different coupling distances, the output transmit voltage, or radio frequency voltage, is dynamically adjusted, as follows: Figure 5 The typical output voltage is based on the standard magnet provided in this application.

[0057] In one embodiment, the sound processing device includes an operating mode.

[0058] In the operating mode, the sound processing and control module is configured to receive the transmission voltage fed back from the output port of the radio frequency transceiver module and the electrical signal output by the magnetic induction module, and determine the setting parameters corresponding to the magnet model based on the degree of difference between the transmission voltage and the electrical signal.

[0059] Specifically, during wear, the sound processing and control module determines the coupling distance based on the voltage value Vva collected by the magnetic induction module, and outputs matching D1-DN parameters or PWM parameters to control the voltage conversion unit or analog boost circuit to output different voltage values. The voltage conversion unit can consist of multiple modules with different output voltages; for example, it can internally include one or more boost circuits. The PWM frequency is adjusted using the D1-DN parameters to control the on / off time of the internal MOSFETs, thereby changing the output voltage value.

[0060] In one embodiment, the sound processing device includes a calibration mode.

[0061] In the calibration mode, the sound processing and control module is configured to receive electrical signals output by the magnetic induction module multiple times, determine the magnet model of the implanted magnet based on the multiple electrical signals, and operate using the setting parameters corresponding to the magnet model when the sound processing device is initially started.

[0062] In practical applications, cochlear implant devices are equipped with magnets of different strengths, and magnets of the same model may have different magnetic field strengths, resulting in different magnetic field strengths at the same coupling distance. Therefore, it is necessary to distinguish and calibrate the magnets before use and retrieve the corresponding pre-configured parameters. The data in this article is based on the standard magnet.

[0063] In practical applications, to ensure output accuracy and avoid changes in output voltage caused by variations in implant load, ambient temperature, etc., the sound processing and control module will repeatedly collect and process the output electrical signal and compare it with the expected value (feedback transmission voltage Vo), thereby adjusting the output setting parameters to strengthen or weaken the output.

[0064] In one embodiment, the sound processing and control module is configured to calculate the difference between the transmitted voltage and the electrical signal, and adjust the setting parameter up or down by 2 levels in response to the absolute value of the difference being within a first difference threshold range; adjust the setting parameter up or down by 1 level in response to the absolute value of the difference being within a second difference threshold range; and not adjust the setting parameter in response to the absolute value of the difference being within a third difference threshold range.

[0065] Furthermore, the sound processing and control module is configured to adjust the setting parameters in response to a first difference absolute value being within a first difference threshold range and the duration meeting a first time threshold condition; otherwise, it will not adjust the setting parameters. The sound processing and control module is also configured to adjust the setting parameters in response to a second difference absolute value being within a second difference threshold range and the duration meeting a second time threshold condition; otherwise, it will not adjust the setting parameters. Finally, the sound processing and control module is configured to determine that the user has removed the sound processing device in response to an invalid received electrical signal, and will not adjust the setting parameters.

[0066] In one embodiment, the voltage conversion module includes a voltage conversion unit or a boost circuit; the setting parameters include a voltage level number or a PWM signal.

[0067] The voltage conversion unit is configured to adjust the transmit voltage of the radio frequency transceiver module according to the voltage level number.

[0068] The Boost circuit is configured to adjust the transmit voltage of the RF transceiver module according to the PWM signal.

[0069] In practical applications, the voltage conversion module operates on the principle of a Boost converter circuit, adjusting the internal PWM frequency to achieve the set output voltage parameters. The voltage conversion module can be composed of multiple modules with different output voltages or built as an analog Boost circuit, allowing for 10 voltage adjustment levels with a 0.1V difference between each level, thus enhancing adjustment accuracy.

[0070] Please see Figure 6 The diagram shows the voltage conversion module circuit of the sound processing device with automatic power adjustment described in this application embodiment. Figure 6 The diagram illustrates the specific circuit structure when the voltage conversion module is a Boost converter circuit. Ui represents the power supply voltage, which is boosted by the charging capacitor C through the PWM frequency control of the switch S to obtain the output voltage Uo. R represents the load of the subsequent circuit.

[0071] Specifically, at the same coupling distance, the higher the transmit voltage, the greater the power consumption. A voltage change of 0.1V results in approximately a 10% difference in power consumption. Therefore, it is necessary to adjust the transmit voltage for different coupling distances. In one embodiment of this application, a voltage conversion module 15 with an output voltage gradient of 0.1V is selected to better match the changes in coupling distance and achieve more precise control.

[0072] Normal user activity can cause momentary vibrations in the sound processing device, resulting in changes in the magnetic field. During wear, the sound processing and detection module periodically detects these changes and adjusts the output configuration accordingly.

[0073] Specifically, if the magnetic induction intensity changes from a1 to a2 within time t1, which is a small change, the parameter will be changed if the duration is greater than 30 minutes to avoid misjudgment by the sound processor. If the duration is less than 30 minutes, no change will be made to avoid repeated changes affecting the hearing effect.

[0074] Specifically, within time t2, the user may be briefly in a place with a strong magnetic field, and the magnetic induction intensity changes from a1 to a3, which is a large change. In order to avoid misjudgment by the sound processor, if the duration is greater than 1 hour, the parameters will be changed. If the duration is less than 1 hour, it may be due to the influence of the patient's temporary environment, and no change will be made to avoid repeated changes affecting the hearing effect.

[0075] Users may experience localized pressure pain due to prolonged wear, and may remove the device to replace it with a weaker magnet or use a protective case, causing drastic changes in the magnetic field. If the sound processing and control module cannot detect a valid output voltage value, it is determined that the user has removed the sound processor, and no parameter changes will be made.

[0076] After the user parameters are configured, due to differences in the body fluid impedance of different users, as well as changes in physical health and environment, the actual output parameters may deviate from the pre-configured parameters. To avoid this, the output parameters will be fine-tuned. Specifically, during use, the sound processing and control module will repeatedly collect the voltage output by the magnetic induction module and compare it with the desired voltage value Vo, which is the pre-configured voltage value. As shown in the adjustment table in Table 2, if the absolute value of the difference is greater than 0.3V, adjust up or down by 2 levels; if the absolute value of the difference is less than 0.3V but greater than 0.1V, adjust by 1 level; if the absolute value of the difference is less than 0.1V, do not adjust.

[0077] Table 2 Gear Adjustment Table

[0078]

[0079] As shown in Table 3 (distance parameter comparison table) and Table 4 (output voltage matching table), when the magnetic field strength is a2, the output voltage Va2 (V) of the magnetic induction module is Vva2 = (Va2 - 2.5) * R3 / R2 (V) after being isolated and amplified by the operational amplifier. After the sound processing and control module acquires the voltage Vva2 (V), it outputs the matching parameter λ2 or PWM2 to control the voltage conversion module or boost circuit to output a voltage value of Volt2 = 2.5V, which is the voltage of the transmitting module. Then, the sound processing and control module acquires the actual voltage Vvo at the port of the transmitting module, then Vo = (Vvo * R2 / R3) + 2.5, in volts. Vo is compared with the preset value Va2. If Vo = Va2 + 0.1V, then the parameter λ2 or PWM2 is adjusted down by 1 level, that is, the parameter is set to λ1 or PWM1.

[0080] Table 3. Distance Parameter Comparison Table

[0081]

[0082]

[0083] Table 4 Output Voltage Matching Table

[0084]

[0085] Please see Figure 7 The diagram shows a flowchart illustrating the principle of the automatic power adjustment sound processing method described in this application embodiment. Figure 7 As shown in the figure, this application provides a sound processing method with automatic power adjustment, which specifically includes the following steps:

[0086] S71 outputs a transmit voltage, enabling the transmit antenna to operate.

[0087] S72, senses the magnetic field strength and outputs an electrical signal corresponding to the magnetic field strength.

[0088] S73, receive the transmission voltage and the electrical signal, and determine the setting parameters corresponding to the magnet model based on the degree of difference between the transmission voltage and the electrical signal.

[0089] Specifically, in the working mode, the system receives the transmit voltage fed back from the output port of the radio frequency transceiver module and the electrical signal output by the magnetic induction module, and determines the setting parameters corresponding to the magnet model based on the degree of difference between the transmit voltage and the electrical signal.

[0090] Specifically, in calibration mode, the sound processing and control module is configured to receive electrical signals output by the magnetic induction module multiple times, and determine the magnet model of the implanted magnet based on the multiple electrical signals, so as to operate using the setting parameters corresponding to the magnet model when the sound processing device is initially started.

[0091] In one embodiment, the sound processing and control module is configured to calculate the difference between the transmitted voltage and the electrical signal, and adjust the setting parameter up or down by 2 levels in response to the absolute value of the difference being within a first difference threshold range; adjust the setting parameter up or down by 1 level in response to the absolute value of the difference being within a second difference threshold range; and not adjust the setting parameter in response to the absolute value of the difference being within a third difference threshold range.

[0092] In one embodiment, the sound processing and control module is configured to adjust the setting parameters in response to a first difference absolute value being within a first difference threshold range and the duration meeting a first time threshold condition; otherwise, the setting parameters are not adjusted. The sound processing and control module is also configured to adjust the setting parameters in response to a second difference absolute value being within a second difference threshold range and the duration meeting a second time threshold condition; otherwise, the setting parameters are not adjusted. Finally, the sound processing and control module is configured to determine that the user has removed the sound processing device in response to an invalid received electrical signal and not adjust the setting parameters.

[0093] S74, adjust the transmit voltage according to the set parameters. The set parameters include a voltage level number or a PWM signal; adjust the transmit voltage of the RF transceiver module according to the voltage level number or PWM signal.

[0094] Please see Figure 8 The diagram shows the calibration flowchart of the automatic power adjustment sound processing method described in the embodiments of this application.

[0095] like Figure 8 As shown, the calibration process is as follows:

[0096] S81, turn on the sound processing device.

[0097] S82 matches standard implants with a fixed 6mm coupling distance.

[0098] S83, the sound processing device has a normal working mode and a calibration mode. The sound processing device can be put into calibration mode by pressing the button.

[0099] S84, the internal program of the sound processing device has stored the voltage values ​​corresponding to a 6mm coupling distance for different types of magnets. Taking the standard magnet as an example, see Table 3. The voltage value is Vva6.

[0100] In S85, the sound processing device determines the magnet model by repeatedly collecting and processing the voltage value output by the magnetic induction module.

[0101] S86. After the magnet model is confirmed, the program will default to this model of magnet. In normal working mode, the program will call the matching setting parameters of this model of magnet, which are the D1~DN parameter setting values.

[0102] The magnetic induction module outputs different voltage values ​​according to changes in the magnetic field. Taking the standard magnet as an example, the total magnetic field strength formed at a distance of 6mm is a6 (guass). Referring to Table 3, the voltage output by the magnetic induction module is Va6 = 2.5 + (2.0 / 3000) * a6, in volts (V). The magnetic field strength is measured within a range of approximately 0–600 guass, with a sensitivity of 3mV / GS. The minimum output voltage is 2.5V, and the maximum output voltage is 4.5V. The final voltage acquired by the sound processing and control module is Vva6 = (Va6 - 2.5) * R3 / R2 (where R2 and R3 are...). Figure 4 (The resistance in the image is expressed in volts (V). To improve resolution, a more sensitive magnetic induction device can be selected, such as a device with a sensitivity of 15mV / GS or higher.

[0103] The commonly used coupling distance is 1–10 mm, so the magnetic field change is also divided into 10 levels, each corresponding to a different coupling distance. If the coupling distance change is small, such as from 4 mm to 5 mm, the output voltage change of the magnetic induction module is not obvious, about 0.2 V. To accurately capture the voltage change and prevent interference from the downstream load, the output voltage is first isolated using an operational amplifier follower, and then the signal is reasonably amplified using a differential operational amplifier, so that the sound processor can collect the difference change. The output voltage Vout = (Va - 2.5) * R3 / R2. Figure 4 In the circuit, resistors R2 and R4 have the same value, as do resistors R3 and R5. A differential operational amplifier is used to eliminate the 2.5V base voltage and amplify and acquire the voltage change values ​​of the magnetic induction module, resulting in more accurate readings.

[0104] Please see Figure 9 The image shown is a structural schematic diagram of the cochlear implant device described in an embodiment of this application. Figure 9 Furthermore, this application embodiment also provides a cochlear implant device, which includes the aforementioned sound processing device 1.

[0105] The sound processing device 1 includes: a transmitting antenna; a radio frequency transceiver module connected to the transmitting antenna and configured to output a transmitting voltage to power the transmitting antenna; a magnetic induction module configured to sense magnetic field strength and output an electrical signal corresponding to the magnetic field strength; a sound processing and control module connected to the radio frequency transceiver module and the magnetic induction module respectively, configured to receive the transmitting voltage fed back from the output port of the radio frequency transceiver module and receive the electrical signal output by the magnetic induction module, and determine the setting parameters corresponding to the magnet model based on the degree of difference between the transmitting voltage and the electrical signal; and a voltage conversion module connected to the sound processing and control module and the radio frequency transceiver module respectively, configured to adjust the transmitting voltage of the radio frequency transceiver module according to the setting parameters.

[0106] Specifically, the cochlear implant also includes an implant containing a magnet.

[0107] The scope of protection for the automatic power adjustment sound processing method described in this application is not limited to the execution order of the steps listed in this embodiment. Any solution implemented by adding, subtracting, or replacing steps in the prior art based on the principles of this application is included within the scope of protection of this application.

[0108] The sound processing device described in this application embodiment can implement the sound processing method with automatic power adjustment described in this application. However, the implementation device of the sound processing method with automatic power adjustment described in this application includes, but is not limited to, the structure of the sound processing device listed in this embodiment. All structural modifications and substitutions of the prior art made in accordance with the principles of this application are included within the protection scope of this application.

[0109] In the several embodiments provided in this application, it should be understood that the disclosed apparatus or method can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules / units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or units may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of apparatuses or modules or units may be electrical, mechanical, or other forms.

[0110] The modules / units described as separate components may or may not be physically separate. The components shown as modules / units may or may not be physical modules; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules / units can be selected to achieve the objectives of the embodiments of this application, depending on actual needs. For example, the functional modules / units in the various embodiments of this application may be integrated into one processing module, or each module / unit may exist physically separately, or two or more modules / units may be integrated into one module / unit.

[0111] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0112] In practical applications, the sound processing and control module can be an electronic device including a processor and a memory.

[0113] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0114] The aforementioned memory may include random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device.

[0115] The descriptions of the processes or structures corresponding to the above figures each have their own emphasis. For parts of a process or structure that are not described in detail, please refer to the relevant descriptions of other processes or structures.

[0116] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A sound processing device with automatic power adjustment, characterized in that, The sound processing device includes: Transmitting antenna; The radio frequency transceiver module, connected to the transmitting antenna, is configured to output a transmitting voltage to power the transmitting antenna. The magnetic induction module is configured to sense the magnetic field strength and output an electrical signal corresponding to the magnetic field strength. The sound processing and control module is connected to the radio frequency transceiver module and the magnetic induction module respectively. It is configured to receive the actual transmission voltage fed back from the output port of the radio frequency transceiver module and the electrical signal output by the magnetic induction module, and determine the setting parameters corresponding to the implant magnet model based on the degree of difference between the transmission voltage and the electrical signal. The voltage conversion module is connected to the sound processing and control module and the radio frequency transceiver module, respectively, and is configured to adjust the actual transmission voltage of the radio frequency transceiver module according to the set parameters.

2. The sound processing device according to claim 1, characterized in that, The magnetic induction module includes a Hall sensor. The Hall sensor is configured to sense changes in the magnetic field strength of the implant magnet.

3. The sound processing apparatus according to claim 2, characterized in that, The magnetic induction module also includes an operational amplifier circuit; The operational amplifier circuit is connected to the Hall sensor and the sound processing and control module, respectively, and is configured to amplify the signal collected by the Hall sensor to obtain the electrical signal.

4. The sound processing apparatus according to claim 1, characterized in that, The sound processing device includes operating modes; In the operating mode, the sound processing and control module is configured to receive the transmission voltage fed back from the output port of the radio frequency transceiver module and the electrical signal output by the magnetic induction module, and determine the setting parameters corresponding to the implant magnet model based on the degree of difference between the transmission voltage and the electrical signal.

5. The sound processing apparatus according to claim 1, characterized in that, The sound processing device includes a calibration mode; In the calibration mode, the sound processing and control module is configured to receive electrical signals output by the magnetic induction module multiple times, determine the implant magnet model based on the multiple electrical signals, and operate using the setting parameters corresponding to the implant magnet model when the sound processing device is initially started.

6. The sound processing apparatus according to claim 1, characterized in that: The sound processing and control module is configured to calculate the difference between the transmitted voltage and the electrical signal, and adjust the setting parameter up or down by 2 levels when the absolute value of the difference is within a first difference threshold range; adjust the setting parameter up or down by 1 level when the absolute value of the difference is within a second difference threshold range; and not adjust the setting parameter when the absolute value of the difference is within a third difference threshold range.

7. The sound processing apparatus according to claim 6, characterized in that: The sound processing and control module is configured to adjust the setting parameters in response to the following: when the absolute value of the first difference is within the range of the first difference threshold, the duration meets the first time threshold condition; if the duration does not meet the first time threshold condition, the setting parameters are not adjusted. The sound processing and control module is configured to adjust the setting parameters in response to the following: when the absolute value of the second difference is within the range of the second difference threshold, the duration meets the second time threshold condition; if the duration does not meet the second time threshold condition, the setting parameters are not adjusted. The sound processing and control module is configured to determine that the user has removed the sound processing device in response to the received electrical signal being invalid, and not to adjust the setting parameters.

8. The sound processing apparatus according to claim 1, characterized in that, The voltage conversion module includes a voltage conversion unit or a boost circuit; the setting parameters include voltage level number or PWM signal; The voltage conversion unit is configured to adjust the transmit voltage of the radio frequency transceiver module according to the voltage level number; The Boost circuit is configured to adjust the transmit voltage of the RF transceiver module according to the PWM signal.

9. A sound processing method with automatic power adjustment, characterized in that, The method includes: Output the transmission voltage to activate the transmitting antenna; The magnetic field strength is sensed, and an electrical signal corresponding to the magnetic field strength is output. Receive the transmission voltage and the electrical signal, and determine the setting parameters corresponding to the magnet model based on the degree of difference between the transmission voltage and the electrical signal; Adjust the transmission voltage according to the set parameters.

10. A cochlear implant device, characterized in that, The cochlear implant device includes: the sound processing device according to any one of claims 1 to 8.

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