CN219204688U

CN219204688U - In-ear Bluetooth hearing aid

Info

Publication number: CN219204688U
Application number: CN202223436017.0U
Authority: CN
Inventors: 徐鹏程; 卢建坤; 林雨露
Original assignee: Austar Hearing Science & Technology (xiamen) Co ltd
Current assignee: Austar Hearing Science & Technology (xiamen) Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-16
Anticipated expiration: 2032-12-21

Abstract

The utility model provides an in-ear Bluetooth hearing aid, which comprises a left ear machine and a right ear machine, wherein the left ear machine is convenient to wear and can be connected with corresponding equipment through Bluetooth, and the in-ear Bluetooth hearing aid is characterized in that: the Bluetooth module is a main control system and is electrically connected with the touch IC module and the DSP module group; the Bluetooth chip module is connected with the charging input end and is electrically connected with a battery protection module, a crystal oscillator I, a memory I, a loudspeaker, an analog switch module and a microphone which are arranged around the Bluetooth chip module, the DSP module group is electrically connected with the crystal oscillator II and the memory II, and is controlled by the Bluetooth chip module through I2C signals, the Bluetooth hearing aid in the ear is convenient to wear, corresponding equipment is connected through Bluetooth, a touch function is arranged, and volume can be adjusted and calls can be received according to own requirements.

Description

In-ear Bluetooth hearing aid

Technical Field

The utility model relates in particular to an in-the-ear bluetooth hearing aid.

Background

According to the national bureau of statistics, the seventh national population census result of 11 months 1 in 2020, the population of 60 years and older is 26402 ten thousand people in the national population, accounting for 18.70%. Meaning that China is in an aging society. And population aging will become more severe over time, it is expected that population ratios above 60 years will be over 30% in 2050. As the population ages, there is an increasing demand for hearing aids, the functionality of which has not been met by conventional hearing aids.

Traditional hearing aids are single-ear, and are not convenient to answer a call, watch television and wear. If the binaural hearing impaired person wears only one hearing aid, the binaural effect may be greatly impaired or even completely diminished. This means that when a car arrives at the other side behind the single-ear wearer, even if a whistling sound is heard, it cannot be determined on which side the car is, and a correct response cannot be made in time, which is very dangerous for the user.

The bluetooth standard was conceived from 1994 to the first bluetooth handset in 2001. Along with the development of Bluetooth technology, bluetooth transmission distance is longer and longer, data is more stable and reliable, power consumption is lower and lower, and the Bluetooth transmission device is popular in various industries. At present, bluetooth has become a part in people's life, how to combine hearing aid technology with bluetooth technology, and the life convenience that bluetooth technology brought can also be enjoyed to the hearing loss patient when enjoying the hearing aid and bringing the help.

Disclosure of Invention

In view of this, the present utility model aims to provide an in-ear bluetooth hearing aid which is convenient to wear, can be connected with corresponding equipment through bluetooth, is provided with a touch function, and can adjust volume according to self requirements and answer calls.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the Bluetooth hearing aid comprises a left earphone and a right earphone which are convenient to wear and can be connected with corresponding equipment through Bluetooth, wherein the Bluetooth hearing aid comprises a Bluetooth chip module, a touch IC module, a Hall module and a DSP module group, and the Bluetooth chip module is a master control system and is electrically connected with the touch IC module and the DSP module group; the Bluetooth chip module is connected with the charging input end, and is electrically connected with a battery protection module, a crystal oscillator I, a memory I, a loudspeaker, an analog switch module and a microphone which are arranged around the Bluetooth chip module, and the DSP module group is electrically connected with the crystal oscillator II and the memory II and is controlled by the Bluetooth chip module through I2C signals.

Preferably, the Bluetooth chip module is a main circuit for working of the Bluetooth hearing aid and comprises a resonance circuit, a radio frequency filter circuit, a storage circuit and a Hall circuit.

Preferably, the DSP module group includes a DSP power supply module and a DSP audio processing module.

Further, the DSP power supply module controls the conduction of the MOS tube through the Bluetooth chip module, and particularly, the on/off of the DSP audio processing module can be controlled.

Furthermore, the DSP audio processing module is a key module of the hearing aid function of the Bluetooth hearing aid and comprises a storage circuit and a starting circuit.

Preferably, the touch IC module communicates with the Bluetooth chip module through the I2C signal and the interrupt signal, and is specifically used for replacing the traditional keys to complete the functions of volume adjustment, bluetooth pairing, system reset and the like.

Preferably, the microphone is further electrically connected to the DSP module group, and specifically, the microphone synchronously transmits the collected audio signals to the DSP audio processing module and the bluetooth chip module.

The technical effects of the utility model are mainly as follows: the Bluetooth hearing aid in the ear is convenient to wear, can be connected with corresponding equipment through Bluetooth, is provided with a touch function, can adjust volume according to own needs and answer a call, and takes a Bluetooth chip module as a main control system to control the touch IC module and the DSP module to work through I2C signals; pairing is carried out with external Bluetooth equipment through the Bluetooth chip module, so that a Bluetooth pairing function is realized; the touch IC module is controlled through the I2C to realize the key function; the hearing aid and Bluetooth switching function is realized through the IO signal control analog switch module, and in addition, the sound source of the in-ear Bluetooth hearing aid is mainly acquired by a microphone or input by a Bluetooth chip module in two modes: when the Bluetooth device is connected, the Bluetooth chip module receives the audio signal and transmits the audio signal to the loudspeaker through the analog switch module; when in a non-Bluetooth mode, the microphone collects volume, signals are transmitted to the DSP module group, the DSP audio processing module in the DSP module group transmits processed digital signals to the loudspeaker through the analog switch module, and the conversion between the Bluetooth mode and the hearing aid mode is easily realized through the switching of the analog switch module in the middle of the DSP module group and the loudspeaker.

Drawings

Fig. 1 is a schematic block diagram of an in-ear bluetooth hearing aid according to the utility model;

FIG. 2 is a schematic diagram of a power supply module of a DSP power supply according to a preferred embodiment of the present utility model;

FIG. 3 is a schematic circuit diagram of a Bluetooth chip module according to a preferred embodiment of the present utility model;

FIG. 4 is a schematic diagram of a DSP audio processing module according to a preferred embodiment of the present utility model;

FIG. 5 is a schematic diagram of a battery protection module according to a preferred embodiment of the present utility model;

FIG. 6 is a schematic diagram of a touch IC module circuit according to a preferred embodiment of the present utility model;

FIG. 7 is a schematic diagram of a microphone circuit according to a preferred embodiment of the present utility model;

the schematic diagram of the analog switch module circuit shown in fig. 8 is a schematic diagram of a preferred embodiment of the present utility model.

Detailed Description

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

The Bluetooth hearing aid comprises a left earphone and a right earphone which are convenient to wear and can be connected with corresponding equipment through Bluetooth, wherein the Bluetooth hearing aid comprises a Bluetooth chip module, a touch IC module, a Hall module and a DSP module group, and the Bluetooth chip module is a master control system and is electrically connected with the touch IC module and the DSP module group; the Bluetooth chip module is connected with the charging input end, and is electrically connected with a battery protection module, a crystal oscillator I, a memory I, a loudspeaker, an analog switch module and a microphone which are arranged around the Bluetooth chip module, and the DSP module group is electrically connected with the crystal oscillator II and the memory II and is controlled by the Bluetooth chip module through I2C signals. The Bluetooth chip module is a main circuit for working of the Bluetooth hearing aid and comprises a resonance circuit, a radio frequency filter circuit, a storage circuit and a Hall circuit. The touch IC module is communicated with the Bluetooth chip module through the I2C signal and the interrupt signal, and is particularly used for replacing the traditional keys to complete the functions of volume adjustment, bluetooth pairing, system reset and the like. The microphone is also electrically connected with the DSP module group, and specifically, the microphone synchronously transmits the collected audio signals to the DSP audio processing module and the Bluetooth chip module.

The DSP module group comprises a DSP power supply module and a DSP audio processing module. The DSP power supply module controls the conduction of the MOS tube through the Bluetooth chip module, and particularly, the on-off of the DSP audio processing module can be controlled. The DSP audio processing module is a key module of the hearing aid function of the Bluetooth hearing aid and comprises a storage circuit and a starting circuit.

In the present embodiment, two microphones are provided.

The Bluetooth chip module switches the loudspeaker output under the Bluetooth mode and the hearing aid mode by controlling the analog switch module. When working in the Bluetooth mode, the loudspeaker is connected with the Bluetooth chip module; when the loudspeaker works in the hearing-aid mode, the loudspeaker is connected with the DSP audio processing module.

The working principle of the whole machine is further described with reference to fig. 2-8:

in the hearing aid mode state:

the Bluetooth chip module U5 (the chip model is QCC-3046-0-WLNSP 94B-TR-01-0) is used for switching on the Q1 power supply preferentially through 59 pins (PI O21), and then U2 starts to work. The Bluetooth chip module U5 can supply power to the microphones of the U12 and U13 through pins 67 (PIO 17) and 87 (PIO 19) at the same time, the microphones work normally, and the microphones transmit collected sound signals to the U2 audio module. U2 plays a central role in hearing aid function, and the audio signals collected by a microphone are transmitted to a 5 pin and a 7 pin of a U8 analog switch module after a series of processing. The U8 analog switch plays a role in selecting an output source of an analog signal, in the mode, the U5 Bluetooth chip module controls the 8 pin and the 4 pin of the U8 analog switch through the 62 pin (PIO 45) so that the 7 pin and the 9 pin of the analog switch are communicated, the 5 pin and the 3 pin are communicated, and the LS1 loudspeaker is connected into the U2 audio module.

In the bluetooth mode state:

the Bluetooth chip module U5 turns off the Q1 power supply through the 59 pin (PIO 21), and at this time, the U2 audio module is in a power-off state. The Bluetooth chip module U5 supplies power to the microphones of the U12 and the U13 through a pin 67 (PIO 17) and a pin 87 (PIO 19), and the microphones work normally; if the microphone is not needed, the Bluetooth chip module U5 pulls the pins 67 (PIO 17) and 87 (PIO 19) low and the microphone stops working. And when the microphone works, the collected audio signals are transmitted to the U5 Bluetooth chip module. U5 converts the analog signal from microphone into digital signal, which is then transmitted to mobile phone via Bluetooth. Meanwhile, a pin 62 (PIO 45) of the U5 controls a pin 8 and a pin 4 of the U8 analog switch to be communicated with a pin 9 and a pin 10, a pin 2 and a pin 3 are communicated, and an LS1 loudspeaker is connected into the U5 Bluetooth chip module.

In addition, the product has the characteristic that the sound size can be adjusted by operating the U10 touch module no matter which working mode the product is in. When the touch module senses human touch, the D3 pin of the U10 touch module sends an interrupt signal to the 72 pin of the U5 Bluetooth chip module, and then the Bluetooth chip module can communicate with the C3 pin and the D2 pin of the U10 touch module through I2C bus signals of the 50 pin (PIO 16) and the 78 pin (PIO 20) to read information sensed by the touch module. Finally, the Bluetooth chip module can perform functions of volume change or Bluetooth reset, scene file switching and the like according to a preset instruction.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. The utility model provides an in-ear bluetooth hearing aid, includes and wears convenient, and the left and right sides ear machine of corresponding equipment is connected to accessible bluetooth, its characterized in that: the Bluetooth module is a main control system and is electrically connected with the touch IC module and the DSP module group; the Bluetooth chip module is connected with the charging input end, and is electrically connected with a battery protection module, a crystal oscillator I, a memory I, a loudspeaker, an analog switch module and a microphone which are arranged around the Bluetooth chip module, and the DSP module group is electrically connected with the crystal oscillator II and the memory II and is controlled by the Bluetooth chip module through I2C signals.

2. An in-the-ear bluetooth hearing aid according to claim 1, wherein: the Bluetooth chip module is a main circuit for working of the Bluetooth hearing aid and comprises a resonance circuit, a radio frequency filter circuit, a storage circuit and a Hall circuit.

3. An in-the-ear bluetooth hearing aid according to claim 1, wherein: the DSP module group comprises a DSP power supply module and a DSP audio processing module.

4. An in-the-ear bluetooth hearing aid according to claim 1 or 3, characterized in that: the DSP power supply module controls the conduction of the MOS tube through the Bluetooth chip module, and particularly, the on-off of the DSP audio processing module can be controlled.

5. An in-the-ear bluetooth hearing aid according to claim 1 or 3, characterized in that: the DSP audio processing module is a key module of the hearing aid function of the Bluetooth hearing aid and comprises a storage circuit and a starting circuit.

6. An in-the-ear bluetooth hearing aid according to claim 1, wherein: the touch IC module is communicated with the Bluetooth chip module through the I2C signal and the interrupt signal, and is particularly used for replacing the traditional keys to complete the functions of volume adjustment, bluetooth pairing and system reset.

7. An in-the-ear bluetooth hearing aid according to claim 1, wherein: the microphone is also electrically connected with the DSP module group, and specifically, the microphone synchronously transmits the collected audio signals to the DSP audio processing module and the Bluetooth chip module.