CN214901306U - Hearing aid - Google Patents
Hearing aid Download PDFInfo
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- CN214901306U CN214901306U CN202023256039.XU CN202023256039U CN214901306U CN 214901306 U CN214901306 U CN 214901306U CN 202023256039 U CN202023256039 U CN 202023256039U CN 214901306 U CN214901306 U CN 214901306U
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Abstract
The present application relates to a hearing aid. The hearing aid comprises a housing, an in-ear detector and an audio processor. The housing encloses a receiving space. The in-ear detector is arranged in the accommodating space and used for acquiring the action characteristic information of the hearing aid. The audio processor is arranged in the accommodating space, is electrically connected with the in-ear detector and is used for switching working modes according to the action characteristic information. The hearing aid judges whether the hearing aid is in an out-of-ear unworn state or not according to the action characteristic information detected by the in-ear detector. When the hearing aid is not worn outside the ear, the audio processor is in a dormant state, and the audio processor does not work at the moment, so that a positive feedback link is blocked, howling of the hearing aid is eliminated, and the sound transmission effect is improved.
Description
Technical Field
The application relates to the field of intelligent wearable equipment, in particular to a hearing aid.
Background
With the rapid development and maturity of intelligent hardware technology, intelligent hearing aids are beginning to enter people's lives. Existing hearing aids are typically constructed of a microphone, an amplifier, a receiver, and a power supply. When the hearing aid is mounted with a battery and is not worn by a patient, the microphone, the amplifier and the receiver form a positive feedback loop, so that the receiver always outputs in a saturated state, and the sound transmission effect is poor due to the generation of the harsh whistling, and the hearing aid effect of the conventional hearing aid is poor.
SUMMERY OF THE UTILITY MODEL
Therefore, the hearing aid is provided aiming at the problem that the traditional hearing aid is easy to generate harsh whistling and causes poor sound transmission effect.
A hearing aid comprising:
a housing enclosing a receiving space;
the ear entrance detector is arranged in the accommodating space and used for acquiring action characteristic information of the hearing aid;
and the audio processor is arranged in the accommodating space, is electrically connected with the in-ear detector and is used for switching the working mode according to the action characteristic information.
In one embodiment, the in-ear detector comprises:
and the accelerometer is arranged in the accommodating space, is electrically connected with the audio processor and is used for detecting the action characteristic information and converting the action characteristic information into an electric signal to be transmitted to the audio processor.
In one embodiment, the in-ear detector comprises a capacitor and a capacitance detector, a detection end of the capacitance detector is electrically connected with the capacitor, and an output end of the capacitance detector is electrically connected with the audio processor, the capacitance detector is used for converting a detected capacitance value into an electric signal to be transmitted to the audio processor, and the capacitance value is a value of the capacitor or a sum of the capacitor and an equivalent capacitor of a wearer.
In one embodiment, the in-ear detector comprises:
the pressure sensor is arranged on the inner surface of the shell and electrically connected with the audio processor, and the pressure sensor is used for detecting a pressure value applied to the shell and converting the pressure value into an electric signal to be transmitted to the audio processor.
In one embodiment, the hearing aid comprises an ear canal contact part, the in-ear detector comprises a light source and a signal receiver, the signal receiver is electrically connected with the audio processor, the light source emits a light signal to the ear canal contact part emitting part, the signal receiver is used for receiving a light signal reflected by the ear canal contact part, and the signal receiver converts the light signal reflected by the ear canal contact part into an electric signal to be transmitted to the audio processor.
In one embodiment, the signal receiver is an array photodiode.
In one embodiment, the ear canal contact part is provided with a dust screen, and further comprises:
and the filter plate is arranged at the ear canal contact part and is in contact with the dustproof net.
In one embodiment, the in-ear detector is disposed at a position where the housing is in close contact with the ear canal.
In one embodiment, the hearing-aid microphone system further comprises two hearing-aid microphones, sound pickup holes of the two hearing-aid microphones are arranged in a non-parallel mode, and the two hearing-aid microphones are electrically connected with the audio processor.
In one embodiment, the method further comprises the following steps:
a receiver electrically connected with the audio processor.
The hearing aid comprises a housing, an in-ear detector and an audio processor. The housing encloses a receiving space. The in-ear detector is arranged in the accommodating space and used for acquiring the action characteristic information of the hearing aid. The audio processor is arranged in the accommodating space, is electrically connected with the in-ear detector and is used for switching working modes according to the action characteristic information. The hearing aid judges whether the hearing aid is in an out-of-ear unworn state or not according to the action characteristic information detected by the in-ear detector. When the hearing aid is not worn outside the ear, the audio processor is in a dormant state, and the audio processor does not work at the moment, so that a positive feedback link is blocked, howling of the hearing aid is eliminated, and the sound transmission effect is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a hearing aid according to an embodiment of the present application;
fig. 2 is a flowchart illustrating an in-ear detector operation of a hearing aid according to an embodiment of the present application;
fig. 3 is a schematic diagram of a hearing aid according to another embodiment of the present application;
fig. 4 is a schematic diagram of a hearing aid according to yet another embodiment of the present application;
fig. 5 is a schematic diagram of a hearing aid according to still another embodiment of the present application.
Description of the main element reference numerals
10. A housing; 101. an ear canal contact portion; 20. an in-ear detector; 21. an accelerometer; 22. a capacitor; 23. a capacitance detector; 24. a pressure sensor; 25. a light source; 26. a signal receiver; 27. a dust screen; 28. a filter plate; 30. an audio processor; 40. a hearing aid microphone; 50. a receiver.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein 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, a first acquisition module may be referred to as a second acquisition module, and similarly, a second acquisition module may be referred to as a first acquisition module, without departing from the scope of the present application. The first acquisition module and the second acquisition module are both acquisition modules, but are not the same acquisition module.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, 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 in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The conventional hearing aid first collects sound by using a microphone and converts the sound into an electric wave signal, then transmits the collected electric wave signal to an amplifier for electric wave enhancement, and finally receives the electric wave signal by using a receiver 50, and converts the enhanced electric wave signal into a sound signal to be received by a wearer through an earphone. The microphone, amplifier and receiver form a positive feedback loop, which causes the receiver to output in saturation state all the time, thus generating whistling. The existing hearing aid howling elimination related technologies are all implemented based on algorithms, and howling elimination is not really implemented.
The present application provides a hearing aid. The hearing aid comprises a housing 10, an in-ear detector 20 and an audio processor 30. The hearing aid further comprises a hearing aid microphone 40 and a receiver 50. The housing 10 encloses a receiving space. The ear entrance detector 20 is disposed in the accommodating space and is configured to collect information about an action characteristic of the hearing aid. The audio processor 30 is disposed in the accommodating space, spaced apart from the in-ear detector 20, and electrically connected to the in-ear detector 20, and configured to switch the working mode according to the motion characteristic information.
It is to be understood that the structure of the housing 10 is not particularly limited as long as the ear detector 20 and the audio processor 30 can be accommodated. Alternatively, the structure of the housing 10 may be adapted for use in hearing aids of the box type, behind the ear type, in the ear type, etc. In one embodiment, the housing 10 may be configured as a rectangle or a circular arc, and has corresponding mounting slots formed therein for receiving the in-ear detector 20, the audio processor 30, and the battery.
It is to be understood that the structure of the in-ear detector 20 is not particularly limited as long as the action characteristic information of the hearing aid can be collected. Alternatively, in order to more easily detect a signal change due to the entrance or exit of the ear, the entrance detector 20 may be disposed at a position where the housing 10 is closely fitted to the ear canal. The motion characteristic information includes signal changes due to the entrance of the ear or the exit of the ear, such as entrance motion information (the hearing aid is worn) and exit motion information (the hearing aid is removed).
It is to be understood that the relative positions of the two hearing aid microphones 40 are not particularly limited. In an implementation manner, the sound pickup holes of the two hearing aid microphones 40 are arranged in a non-parallel manner. Optionally, a soft rubber sleeve is arranged between the two hearing aid microphones 40, and the sound pickup holes of the two hearing aid microphones 40 are perpendicular. The soft rubber sleeve is matched with the angle of the sound pickup hole, so that squeaking can be further avoided. In one embodiment, a dust screen 27 is provided at the pick-up hole.
The hearing aid eliminates howling according to the working principle that the audio processor 30 controls the working mode to be a normal audio amplification state or a sleep state according to the action characteristic information transmitted by the in-ear detector 20. When the in-ear detector 20 determines that the hearing aid is worn, the information is transmitted to the audio processor 30, the audio processor 30 enters a working mode, and performs normal processing and amplification on the audio signal collected by the hearing aid microphone 40, so that the hearing aid works normally. When the in-ear detector 20 determines that the hearing aid is removed, this information is transmitted to the audio processor 30, the audio processor 30 enters a sleep mode, no audio signal is output to the receiver 50, no sound is output from the receiver 50, and howling is suppressed.
The hearing aid determines whether the hearing aid is in an out-of-ear unworn state or not based on the motion characteristic information detected by the in-ear detector 20. When the hearing aid is not worn on the ear, the audio processor 30 is in a sleep state, and at this time, the audio processor 30 does not work, so that a positive feedback link is blocked, thereby eliminating hearing aid howling and improving a sound transmission effect.
Referring to fig. 1, in one embodiment, the hearing aid comprises a housing 10, a hearing aid microphone 40, an accelerometer 21, a receiver 50, and an audio processor 30.
The housing 10 encloses a receiving space. The accelerometer 21 is disposed in the accommodating space. The accelerometer 21 is electrically connected to the audio processor 30, and is configured to detect motion characteristic information of the hearing aid, convert the motion characteristic information into an electrical signal, and transmit the electrical signal to the audio processor 30. The audio processor 30 is disposed in the accommodating space, and configured to switch the working mode according to the motion characteristic information. Alternatively, the accelerometer 21 may be placed in a position where the housing 10 fits closely to the ear canal. The audio processor 30 can be disposed in the accommodating space at a position other than the mounting position of the accelerometer 21 and the mounting position of the hearing aid microphone 40.
Referring to fig. 2, it is a flowchart of the work of the in-ear detector 20, when the hearing aid is picked up and worn, the accelerometer 21 detects the movement information of the hearing aid and transmits the information to the audio processor 30, the audio processor 30 analyzes the signal transmitted by the accelerometer 21 to determine whether the hearing aid is worn in the ear, and if it is identified that the hearing aid is worn in the ear and the hearing aid is in a working state, the audio processor 30 performs an audio amplification function, and the hearing aid works normally. When the hearing aid is taken off from the ear, the accelerometer 21 detects the movement information of the hearing aid and transmits the information to the audio processor 30, the audio processor 30 analyzes the signal transmitted by the accelerometer 21 to judge whether the hearing aid has an ear-out action, if the hearing aid is identified to have the ear-out action, the hearing aid enters a non-wearing state, the hearing aid does not perform an audio amplification function, the receiver 50 does not output at the moment, a positive feedback link formed by the hearing aid microphone 40, the audio processor 30 and the receiver 50 is disconnected, and the hearing aid does not generate howling.
In this embodiment, the hearing aid determines whether the hearing aid is in an out-of-ear unworn state according to the motion characteristic information detected by the accelerometer 21. When the hearing aid is not worn on the ear, the audio processor 30 is in a sleep state, and at this time, the audio processor 30 does not work, so that a positive feedback link is blocked, thereby eliminating hearing aid howling and improving a sound transmission effect.
Referring to fig. 3, in one embodiment, the hearing aid comprises a housing 10, a hearing aid microphone 40, a capacitor 22, a capacitance detector 23, a receiver 50, and an audio processor 30. The housing 10 encloses a receiving space. The capacitor 22 and the capacitance detector 23 are disposed in the accommodating space. The detection end of the capacitance detector 23 is electrically connected to the capacitor 22, and the output end of the capacitance detector 23 is electrically connected to the audio processor 30, and the capacitance detector 23 is configured to convert the detected capacitance value into an electrical signal and transmit the electrical signal to the audio processor 30. The capacitance value is the value of the capacitance 22 or the sum of the capacitance 22 and the equivalent capacitance of the wearer. The audio processor 30 is disposed in the accommodating space, and is spaced apart from the capacitor 22 and the capacitor detector 23. The audio processor 30 is configured to switch the operation mode according to the capacitance value detected by the capacitance detector 23.
The capacitor 22 may be a copper foil. The capacitance detector 23 can detect the capacitance value connected to the detection terminal thereof, and determine the output thereof to the audio processing module according to the capacitance value. Optionally, a threshold value is stored in the capacitance detector 23. The threshold value may be equal to or greater than the value of the capacitance 22, but less than the sum of the value of the capacitance 22 and the equivalent capacitance of the wearer. The capacitance of the capacitance detector 23 is detected when the hearing aid is not in the ear canalThe measuring terminal can only detect the capacitance value C of the capacitor 22 provided by the copper foilU5At this time, the capacitance value detected by the capacitance detector 23 is less than or equal to the set threshold value, the capacitance detector 23 determines that the hearing aid is not in the ear, and transmits the information to the audio processor 30, and after receiving the signal, the audio processor 30 enters a sleep state, and does not perform audio amplification related calculation and output, and at this time, the receiver 50 does not output, the positive feedback link is disconnected, and the hearing aid does not generate howling.
When the hearing aid enters the auditory canal, since the human body can also be used as a capacitor and connected in parallel to the copper foil, the capacitance value detected by the capacitance detection end of the capacitance detector 23 is CU5+CEar canalWhen the detected capacitance value is higher than the set threshold value, the capacitance detector 23 judges that the hearing aid is worn in the ear, and transmits the information to the audio processor 30, and the audio processor 30 enters a normal working state after receiving the signal, and performs expected amplification on the audio signals received by the two hearing aid microphones 40.
In this embodiment, the hearing aid determines whether the hearing aid is in an out-of-ear unworn state according to the capacitance value information detected by the capacitance detector 23. When the hearing aid is not worn on the ear, the audio processor 30 is in a sleep state, and at this time, the audio processor 30 does not work, so that a positive feedback link is blocked, thereby eliminating hearing aid howling and improving a sound transmission effect. In the embodiment, the wearing condition of the hearing aid is detected by a pure hardware link scheme, so that the reliability of judgment is improved.
Referring to fig. 4, in one embodiment, the hearing aid comprises a housing 10, a hearing microphone 40, a pressure sensor 24, a receiver 50, and an audio processor 30. The housing 10 encloses a receiving space. The pressure sensor 24 is disposed on an inner surface of the housing 10 and electrically connected to the audio processor 30, and the pressure sensor 24 detects a pressure value applied to the housing 10, converts the pressure value into an electrical signal, and transmits the electrical signal to the audio processor 30. The audio processor 30 is disposed in the accommodating space, spaced apart from the pressure sensor 24, and configured to switch the working mode according to the electrical signal. Optionally, the pressure sensor 24 is disposed at a position where the shell 10 is closely fitted to the ear canal.
The pressure sensor 24 located on the inner surface of the hearing aid housing 10 senses the shell surface pressure and communicates the pressure information to the audio processor 30. When the hearing aid is placed in the ear canal, the ear canal presses the hearing aid shell 10, the pressure sensor 24 converts pressure information into an electric signal and transmits the electric signal to the audio processor 30, and the audio processor 30 enters a normal working state after receiving an in-ear signal sent by the pressure sensor 24 and performs expected amplification on the audio signals received by the two hearing aid microphones 40. When the hearing aid is taken out of the ear, no force is exerted on the hearing aid housing 10, the pressure sensor 24 does not detect pressure information and transmits information that the hearing aid is not worn to the audio processor 30, the audio processor 30 enters a sleep state after receiving the signal, audio amplification related calculation and output cannot be performed, at the moment, the receiver 50 does not output, the positive feedback link is disconnected, and the hearing aid cannot generate howling.
In this embodiment, the hearing aid determines whether the hearing aid is in an out-of-ear unworn state according to the pressure value information detected by the pressure sensor 24. When the hearing aid is not worn on the ear, the audio processor 30 is in a sleep state, and at this time, the audio processor 30 does not work, so that a positive feedback link is blocked, thereby eliminating hearing aid howling and improving a sound transmission effect. In the embodiment, the wearing condition of the hearing aid is detected by a pure hardware link scheme, so that the reliability of judgment is improved.
Referring to fig. 5, in one embodiment, the hearing aid includes an ear canal contact 101. The hearing aid comprises a housing 10, a hearing aid microphone 40, a light source 25, a signal receiver 26, a receiver 50 and an audio processor 30. The housing 10 encloses a receiving space. The signal receiver 26 is electrically connected to the audio processor 30, the light source 25 emits a light signal to the transmitting portion of the ear canal contact portion 101, the signal receiver 26 is configured to receive the light signal reflected by the ear canal contact portion 101, and the signal receiver 26 converts the light signal reflected by the ear canal contact portion 101 into an electrical signal and transmits the electrical signal to the audio processor 30. The audio processor 30 is disposed in the accommodating space, spaced apart from the light source 25 and the signal receiver 26, and is configured to switch an operation mode according to the electrical signal.
It is to be understood that the configurations of the light source 25 and the signal receiver 26 are not particularly limited as long as the light source 25 and the signal receiver 26 are used in cooperation to detect the wearing condition of the hearing aid. In one embodiment, the light source 25 is an infrared diode. The signal receiver 26 is an array photodiode. In one embodiment, the ear canal contact part 101 is provided with a dust screen 27.
When the hearing aid is placed in the ear canal, the ear canal serves as a reflector in fig. 5, infrared light emitted by the infrared diode is reflected by the reflector and then received by the array photodiode, one or more photodiodes in the array photodiode output high level signals to the audio processor 30, and the audio processor 30 enters a normal working state after receiving the high level signals and performs expected amplification on audio signals received by the two hearing aid microphones 40. When the hearing aid is removed from the ear, the array photodiode cannot receive the infrared light from the infrared diode because there is no object to act as a reflector in fig. 5, and the array photodiode will output a low level signal to the audio processor 30. After receiving a low level signal, the audio processor 30 will enter a sleep state, and will not perform the related calculation and output of audio amplification, at this time, the receiver 50 will not output, the positive feedback link is disconnected, and the hearing aid will not generate howling.
In one of the embodiments the hearing aid further comprises a filter 28. The filter 28 is disposed at the ear canal contact part 101 and contacts the dust screen 27. The filter 28 can filter out stray light to improve the detection accuracy.
In this embodiment, the hearing aid determines whether the hearing aid is in an out-of-ear unworn state according to the optical signal information detected by the array photodiode. When the hearing aid is not worn on the ear, the audio processor 30 is in a sleep state, and at this time, the audio processor 30 does not work, so that a positive feedback link is blocked, thereby eliminating hearing aid howling and improving a sound transmission effect. The embodiment uses the array photodiode to replace the accelerometer 21 in the original design on the basis of the original design, the hardware reliability can be improved by using the array photodiode, and the problem that the hearing aid cannot be normally used due to the failure of a single electronic element in a circuit can be solved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A hearing aid, comprising:
a housing enclosing a receiving space;
the ear entrance detector is arranged in the accommodating space and used for acquiring action characteristic information of the hearing aid;
and the audio processor is arranged in the accommodating space, is electrically connected with the in-ear detector and is used for switching the working mode according to the action characteristic information.
2. The hearing aid according to claim 1, wherein the in-ear detector comprises:
and the accelerometer is arranged in the accommodating space, is electrically connected with the audio processor and is used for detecting the action characteristic information and converting the action characteristic information into an electric signal to be transmitted to the audio processor.
3. The hearing aid according to claim 1, wherein the in-the-ear detector comprises a capacitance and a capacitance detector, a detection end of the capacitance detector being electrically connected to the capacitance and an output end of the capacitance detector being electrically connected to the audio processor, the capacitance detector being configured to convert a detected capacitance value into an electrical signal to be transmitted to the audio processor, the capacitance value being a value of the capacitance or a sum of the capacitance and an equivalent capacitance of the wearer.
4. The hearing aid according to claim 1, wherein the in-ear detector comprises:
the pressure sensor is arranged on the inner surface of the shell and electrically connected with the audio processor, and the pressure sensor is used for detecting a pressure value applied to the shell and converting the pressure value into an electric signal to be transmitted to the audio processor.
5. The hearing aid according to claim 1, wherein said hearing aid comprises an ear canal contact, said in-ear detector comprises a light source and a signal receiver, said signal receiver is electrically connected to said audio processor, said light source emits a light signal to said ear canal contact, said signal receiver is adapted to receive a light signal reflected by said ear canal contact, and said signal receiver converts said light signal reflected by said ear canal contact into an electrical signal for transmission to said audio processor.
6. Hearing aid as claimed in claim 5, characterized in that the signal receiver is an array photodiode.
7. The hearing aid according to claim 5, wherein the ear canal contact part is provided with a dust screen, further comprising:
and the filter plate is arranged at the ear canal contact part and is in contact with the dustproof net.
8. The hearing aid according to claim 1, wherein the in-ear detector is arranged at a position where the shell fits closely to the ear canal.
9. The hearing aid of claim 1, further comprising two hearing aid microphones, wherein the sound pickup holes of the two hearing aid microphones are arranged in a non-parallel arrangement, and wherein the two hearing aid microphones are both electrically connected to the audio processor.
10. The hearing aid according to claim 1, further comprising:
a receiver electrically connected with the audio processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023256039.XU CN214901306U (en) | 2020-12-29 | 2020-12-29 | Hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023256039.XU CN214901306U (en) | 2020-12-29 | 2020-12-29 | Hearing aid |
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| Publication Number | Publication Date |
|---|---|
| CN214901306U true CN214901306U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023256039.XU Active CN214901306U (en) | 2020-12-29 | 2020-12-29 | Hearing aid |
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| CN (1) | CN214901306U (en) |
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2020
- 2020-12-29 CN CN202023256039.XU patent/CN214901306U/en active Active
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