TW201701831A - Portable audiometry device - Google Patents

Abstract

A portable audiometry device is arranged in an earphone and electrically connected to an electronic device. The electronic device provides an audio frequency signal. The portable audiometry device includes a microphone, an automatic noise eliminating module, a mixer and an output unit. The microphone, the automatic noise eliminating module, the mixer and the output unit are arranged in the earphone. The microphone receives external noise, and the automatic noise eliminating module generates an opposite audio signal with same amplitude and opposite phase with the external noise and sends the opposite audio signal to the mixer. The opposite audio signal is mixed with the audio signal input to the electronic device and the mixed signal is sent to the output unit. The opposite audio signal output by the output unit outputs is cancelled by the external noise such that only the audio signal sent by the electronic device is audible to user for audiometry.

Description

Portable hearing detection device

The invention relates to a hearing detecting device, in particular to a portable detecting device capable of self-detecting.

The sonic wave is present in the air as invisible energy. After being collected through the ear shell, it is transmitted to the outer ear, then through the middle ear to the inner ear, and finally to the brain, and becomes a useful message that can be understood. Therefore, when there are lesions in the outer ear, the middle ear, the inner ear auditory nerve, and any part of the brain auditory center, hearing impairment may occur. When a hearing loss occurs, you will find yourself often asking others to repeat what they have just said, especially in a noisy environment. At home, I will unconsciously turn up the radio and TV, or feel that others are whispering. After the hearing continues to deteriorate, it takes more effort to communicate with others.

Traditionally, when detecting hearing, the subject enters the noise-free room and wears an earmuff inside the noise-free room. The transmission line of the earmuff is plugged into a detecting instrument, and the detector outside the noise-free outdoor operation will operate. The detecting instrument produces an audible sound in the left or right ear of the earmuff. When the subject hears the sound in the left or right ear, the button is pressed to indicate that the left or right ear hears the sound, and the examiner is in the subject. The button pressed is used to judge whether the hearing of the subject is normal.

Since the above-mentioned ear hearing detecting instrument is too large, it must be installed in a hospital or a related testing unit, and the subject must also go to the hospital or a related unit for testing, and cannot carry out to detect others, thereby making the use convenience limited. .

Therefore, the main object of the present invention is to solve the problem that the conventional hearing device is limited in size and cannot be carried out. The present invention integrates the hearing detecting device into the earphone and is connected with the portable electronic device, so that the user can carry it out and use the anti-noise function. No need to use it in a noisy environment.

Another object of the present invention is to provide a dual tone multi-frequency signal control module in the hearing detection device for receiving an audio signal output by the portable electronic device, which can set or adjust parameters of the automatic noise cancellation module of the hearing detection device. .

In order to achieve the above object, the present invention provides a portable hearing detection device, which is installed in an earphone and electrically connected to an electronic device, and provides an audio signal by the electronic device, including: a microphone, an automatic noise cancellation module, A mixer and an output unit. The microphone is mounted inside the earphone. The automatic noise cancellation module is mounted inside the earphone and electrically connected to the microphone. The mixer is mounted inside the earphone and electrically connected to the automatic noise cancellation module and the electronic device. The output unit is mounted inside the earphone and electrically connected to the mixer. Receiving an external noise signal by the microphone, and converting, by the automatic noise cancellation module, an opposite acoustic wave signal having the same amplitude as the noise signal, and outputting the opposite phase acoustic wave signal to the mixer, and transmitting the audio signal mixed with the electronic device to the output In the unit, the output of the opposite acoustic wave signal at the output unit cancels the external noise signal, and only the audio signal transmitted by the electronic device is heard, and the audio signal is transmitted through the audio signal for hearing detection.

In an embodiment of the invention, the audio signal is 125H _Z ~ 8KH _Z .

In an embodiment of the invention, the output unit is a horn.

In an embodiment of the invention, the electronic device is a portable electronic device.

In an embodiment of the invention, the portable electronic device is a tablet computer, a notebook computer or a smart phone.

In order to achieve the above object, the present invention further provides a portable hearing detecting device, which is installed in an earphone and electrically connected to an electronic device, and the electronic device provides an audio signal, comprising: a microphone and an automatic noise canceling module. a mixer, an output unit and a dual tone multi-frequency signal control module. The microphone is mounted inside the earphone. The automatic noise cancellation module is mounted inside the earphone and electrically connected to the microphone. The mixer is mounted inside the earphone and electrically connected to the automatic noise cancellation module and the electronic device. The output unit is mounted inside the earphone and electrically connected to the mixer. The dual-tone multi-frequency signal control module is installed inside the earphone and electrically connected to the electronic device and the automatic noise cancellation module. Receiving an external noise signal by the microphone, and converting, by the automatic noise cancellation module, an opposite acoustic wave signal having the same amplitude as the noise signal, and outputting the opposite phase acoustic wave signal to the mixer, and transmitting the audio signal mixed with the electronic device to the output On the unit, the output of the opposite acoustic wave signal at the output unit cancels the external noise signal, and only hears the audio signal transmitted by the electronic device, and performs hearing detection through the audio signal; when the hearing is not detected, The dual-tone multi-frequency signal control module receives the audio signal of the electronic device, and performs parameter setting or adjustment on the automatic noise cancellation module.

In an embodiment of the invention, the audio signal is 125H _Z ~ 8KH _Z .

In an embodiment of the invention, the output unit is a horn.

In an embodiment of the invention, the electronic device is a portable electronic device.

In an embodiment of the invention, the portable electronic device is a tablet computer, a notebook computer or a smart phone.

The technical content and detailed description of the present invention are as follows:

1 is a block diagram showing the circuit of a portable hearing detecting device according to a first embodiment of the present invention. As shown in the figure, the portable hearing detecting device of the present invention comprises: a microphone 1, an automatic noise canceller module 2, a mixer 3 and an output unit 4. .

The microphone 1 is mounted inside the earphone 10 for receiving an external noise signal, and transmits the received noise signal to the automatic noise cancellation module 2.

The automatic noise cancellation module 2 is mounted inside the earphone 10 and electrically connected to the microphone 1 to receive an external noise signal output by the microphone 1 to convert the external noise signal into the same amplitude as the external noise signal. The opposite phase of the opposite phase acoustic signal is output.

The mixer 3 is mounted inside the earphone 10 and electrically connected to the automatic noise cancellation module 2 and the electronic device (not shown). The mixer 3 is configured to receive the automatic noise cancellation module. The opposite acoustic wave signals output by the two and the audio signals for detection input by the electronic device are mixed and output.

The output unit 4 is mounted inside the earphone 10 and electrically connected to the mixer 3 to output opposite acoustic signals and audio signals mixed by the mixer 3. In the figure, the output unit 4 is a horn.

1 and 2 are schematic diagrams showing a circuit block of a portable hearing detecting device according to a first embodiment of the present invention and a state in which the hearing detecting device of FIG. 1 is connected to an electronic device. As shown in the figure: when the subject is performing hearing detection, the input end of the earphone 10 is plugged into the electronic device (tablet, notebook, smart phone) 20, and the earphone 10 is worn on the head. When the microphone 1 receives the external noise signal and transmits the noise signal to the automatic noise cancellation module 2, the automatic noise cancellation module 2 converts the external noise signal into the same amplitude as the external noise signal, and the opposite phase of the opposite sound wave The signal is output to the mixer 3. When the opposite acoustic signal is output to the mixer 3, the electronic device 20 also outputs an audio signal of 125H _Z ~ 8KH _Z to the mixer 3 and the mixed acoustic signal is mixed and transmitted. Up to the output unit 4, the opposite acoustic signal cancels the external noise signal at the same time, so that the subject does not hear the external noise signal, so that the subject only hears the transmission by the electronic device 20. The audio signal is 125H _Z ~ 8KH _Z , and the subject is subjected to hearing detection through the audio signal.

Please refer to FIG. 3, which is a circuit block diagram of a portable hearing detecting apparatus according to a second embodiment of the present invention. As shown in the figure, between the electronic device 20 and the automatic noise cancellation module 2, a dual-tone multi-frequency controller module (Dual-Tone Multi-Frequency Controller Module) 5 is added to the dial tone generated by the general telephone dialing. In the parameter setting or adjustment of the automatic noise cancellation module 2, a dual-tone multi-frequency signal control module 5 is proposed, and the audio signal of the electronic device 20 can be appropriately converted into the control automatic noise cancellation module 2. Signal. For example, if the value in the control position "12" of the automatic noise cancellation module 2 is set to "34", the electronic device 20 can send "*77#1234" (Note: *77# is the opening identification code, Of course, it can be changed to other codes, but it needs to be matched to have a function.) This function is used when the portable hearing detection device has distortion in the amplitude and phase of the letter conversion. When no hearing detection is performed, it can be transmitted. The dual-tone multi-frequency signal control module 5 performs parameter setting or adjustment of the automatic noise cancellation module 2, and does not need to perform an external external I/O device to perform parameter setting or adjustment of the automatic noise cancellation module 2.

Further, after the detection is completed, the test subject or the tester can pass through the wireless transmission module of the electronic device 20 (such as a Bluetooth module or a wifi module) and peripheral devices (such as a printer) or through the Internet and the periphery. The device is linked to print out the hearing test results.

The above are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. That is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention.

10‧‧‧ headphones

1‧‧‧ microphone

2‧‧‧Automatic Noise Cancellation Module

3‧‧‧Mixer

4‧‧‧Output unit

5‧‧‧Dual tone multi-frequency signal control module

20‧‧‧Electronic devices

1 is a circuit block diagram of a portable hearing detecting device according to a first embodiment of the present invention.

FIG. 2 is a schematic view showing a state in which the hearing detecting device and the electronic device of FIG. 1 are connected to each other.

Fig. 3 is a circuit block diagram showing a portable hearing detecting apparatus according to a second embodiment of the present invention.

10‧‧‧ headphones

1‧‧‧ microphone

2‧‧‧Automatic Noise Cancellation Module

3‧‧‧Mixer

4‧‧‧Output unit

Claims (10)

A portable hearing detection device is installed in an earphone and electrically connected to an electronic device, and the electronic device provides an audio signal, comprising: a microphone installed inside the earphone; an automatic noise cancellation module Installed inside the earphone and electrically connected to the microphone; a mixer is installed inside the earphone and electrically connected to the automatic noise cancellation module and the electronic device; an output unit is mounted on the earphone Internally, and electrically connected to the mixer; wherein the microphone receives an external noise signal, and the automatic noise cancellation module converts the opposite acoustic wave signal having the same amplitude as the noise signal to the mixer, and outputs the opposite acoustic wave signal to the mixer. The audio signal input by the electronic device is mixed and transmitted to the output unit, and the output of the opposite acoustic wave signal at the output unit cancels the external noise signal, and only the audio signal transmitted by the electronic device is heard and transmitted through the audio signal. Audio signals for hearing detection. The portable hearing detecting device according to claim 1, wherein the audio signal is 125H _Z ~ 8KH _Z . The portable hearing detecting device of claim 1, wherein the output unit is a horn. The portable hearing detecting device of claim 1, wherein the electronic device is a portable electronic device. The portable hearing detection device of claim 4, wherein the portable electronic device is a tablet computer, a notebook computer or a smart phone. A portable hearing detection device is installed in an earphone and electrically connected to an electronic device, and the electronic device provides an audio signal, comprising: a microphone installed inside the earphone; an automatic noise cancellation module Installed inside the earphone and electrically connected to the microphone; a mixer is installed inside the earphone and electrically connected to the automatic noise cancellation module and the electronic device; an output unit is mounted on the earphone Internally, and electrically connected to the mixer; a dual-tone multi-frequency signal control module is installed in the earphone and electrically connected to the electronic device and the automatic noise cancellation module; wherein the microphone is received An external noise signal is converted by the automatic noise cancellation module to have the same amplitude as the noise signal, and the opposite phase acoustic wave signal is output to the mixer, and is mixed with the audio signal input by the electronic device and transmitted to the output unit. The output unit outputs the opposite acoustic signal and cancels the external noise signal, and only hears the transmission by the electronic device. Frequency signal, and the audio signal through the hearing test; not detected when listening, the DTMF signal control module receiving an audio signal of the electronic device, the automatic noise cancellation module parameter set or adjusted. The portable hearing detecting device of claim 6, wherein the audio signal is 125H _Z ~ 8KH _Z . The portable hearing detecting device of claim 6, wherein the output unit is a horn. The portable hearing detecting device of claim 6, wherein the electronic device is a portable electronic device. The portable hearing detection device of claim 9, wherein the portable electronic device is a tablet computer, a notebook computer or a smart phone.