Over-ear headset-type hearing aid with bluetooth audio function

Abstract

The present invention relates to an over-ear headset-type hearing aid that has a Bluetooth audio function and that is configured to prevent howling, and provides: an over-ear headset-type hearing aid with a Bluetooth audio function, which is equipped with over-ear type headsets that cover ears of a user, a headband that connects the headsets and elastically supports same, and a head cushion, and which has microphones embedded between the head cushion and respective microphone holes in the headband; and an embodiment of a circuit configuration.

Description

Over-ear headset type hearing aid equipped with Bluetooth audio function

[0001] The present invention relates to a hearing aid, and more specifically, to an over-ear headset type hearing aid equipped with a Bluetooth audio function and designed to prevent howling.

[0002] As background technology to the present invention, there is the Bluetooth headphone technology having a hearing aid function as described in Korean Registered Patent No. 10-2502385, illustrated in Drawing 1. This technology includes: a microphone for receiving an external sound source; a Bluetooth communication unit for receiving a terminal sound source by communicating via Bluetooth with a mobile communication terminal; a mode selection button for selecting a hearing aid mode to operate as a hearing aid or a headphone mode to operate as a headphone; a pre-amplifier for performing input gain control to adjust the external sound received through the microphone to a set stable level; a control unit for transmitting the external sound source received through the Bluetooth communication unit to an output amplifier when the hearing aid mode is selected via the mode selection button, and transmitting the terminal sound source received through the Bluetooth communication unit to an output amplifier when the headphone mode is selected via the mode selection button; an output amplifier for performing output gain control to amplify the output sound source output through the control unit to a preset output level and transmitting it to a speaker; and a speaker for outputting the sound source amplified through the output amplifier. However, this technology has structural limitations in that it transmits external sound sources received via the Bluetooth unit to the output amplifier in hearing aid mode, which not only causes a time delay between the sound played by the hearing aid and the external sound but also allows for howling between the microphone and the speaker.

[0003] As another background technology of the present invention, there is the wired / wireless hearing aid system technology of Korean Registered Patent No. 10-1376175 illustrated in Drawing 2. This technology may include a wireless audio transmitter that receives an audio signal transmitted from an audio device and outputs it wirelessly; and a wireless hearing aid receiver that receives a signal provided by the wireless audio transmitter, amplifies it, and then outputs it through a hearing aid. According to an embodiment of the present invention, after receiving a signal from the wireless audio transmitter via a wireless method such as Bluetooth, the received signal is individually fitted by correcting it according to the condition of the user's right and left ears, and then provided to the user. This technology also has a structure for a hearing aid in which a voice signal is transmitted from the Bluetooth module of a mobile terminal to the Bluetooth module of a wireless hearing aid receiver. Since the microphone of the mobile terminal is used as an input means for the hearing aid, there is a limitation in that not only does a time delay occur between the sound played by the hearing aid and the external sound, but howling also occurs between the mobile terminal and the earphones.

[0004] As another background technology of the present invention, there is the technology of a method and system for providing modes of a hearing aid earphone that provides a hear mode and a music mode as described in Korean Published Patent Application No. 10-2022-0064334, illustrated in Fig. 3. This technology relates to a method and system for providing modes of a hearing aid earphone that provides external sounds and music sounds set at customized decibels suitable for the user's hearing condition in a hear mode with a hearing aid function and a music mode with an earphone function. The hearing aid earphone comprises: a sound input unit for inputting external sounds; a mode selection unit for selecting one or more modes among a hear mode with a hearing aid function and a music mode with an earphone function; a mode processing unit that amplifies or reduces the external sounds according to customized decibels that complement the hearing of the user's right ear and left ear respectively in the hear mode, and amplifies or reduces the music sounds according to the customized decibels in the music mode; and a sound output unit that outputs the amplified or reduced external sounds and music sounds to the hearing aid earphone. Since this technology equips the hearing aid earphones with a sound input section, namely a microphone, howling may occur, there is a limitation in that earphones with a structure that seals the ear canal must be used.

[0005] The objective is to provide an over-ear headset type hearing aid that does not strain the user's ear canal, is equipped with means to prevent howling, provides high-quality sound, and also has a Bluetooth audio function.

[0006] To solve the above problem, the present invention provides an embodiment of an over-ear headset type hearing aid and circuit configuration as a means of solving the problem, comprising over-ear type headsets that cover a user's ears, a headband and a head cushion that elastically support the headsets, and a Bluetooth audio function in which a microphone is embedded between the microphone holes of the headband and the head cushion, respectively.

[0007] According to the over-ear headset type hearing aid equipped with a Bluetooth audio function of the present invention, there are technical effects such as not overworking the user's ear canal, having means to prevent howling, providing high-quality sound, and providing a Bluetooth audio function.

[0008] Figure 1 is a configuration of Bluetooth headphone technology having a hearing aid function as background technology.

[0009] Figure 2 illustrates, as other background technology, the configuration of wired and wireless hearing aid system technology.

[0010] Figure 3 illustrates, as another background technology, a method for providing modes of hearing earphones that provide Hear mode and Music mode, and the configuration of the system technology thereof.

[0011] Drawing 4 shows the wearing structure of a conventional hearing aid.

[0012] Drawing 5 shows the external configuration of an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention.

[0013] Drawing 6 shows the microphone installation configuration of the present invention.

[0014] Drawing 7 shows the detailed configuration of the headset of the present invention.

[0015] Drawing 8 is a first embodiment of the present invention

[0016] Drawing 9 is a second embodiment of the present invention

[0017] Drawing 10 is a third embodiment of the present invention

[0018] Figure 11 shows the wearing structure of an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention.

[0019] The present invention provides an embodiment of an over-ear headset type hearing aid and circuit configuration in the best form for carrying out the invention, comprising over-ear type headsets that cover a user's ears, a headband and a head cushion that elastically support said headsets by connecting said headsets, and a Bluetooth audio function in which a microphone is embedded between the microphone holes of said headband and the head cushion, respectively.

[0020] The following description merely illustrates the principles of the present invention. Accordingly, those skilled in the art may invent various devices that embody the principles of the present invention and are included within the concept and scope of the present invention, even though they are not explicitly described or illustrated in this specification. Furthermore, all conditional terms and embodiments listed in this specification are, in principle, explicitly intended only for the purpose of understanding the concept of the present invention and should be understood as not being limited to the embodiments and conditions specifically listed as such. Additionally, all detailed descriptions enumerating specific embodiments, as well as the principles, aspects, and embodiments of the present invention, should be understood as being intended to include structural and functional equivalents thereof.

[0021] The aforementioned objectives, features, and advantages will become clearer through the following detailed description in conjunction with the attached drawings. In describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such descriptions may unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0022]

[0023] Figure 4 illustrates the wearing structure of a conventional hearing aid. Figure (a) is a behind-the-ear type hearing aid in which the hearing aid circuit and microphone are positioned behind the outer ear, and the earphone unit is extended from there to the auditory canal. Figure (b) is an in-the-ear type hearing aid characterized by a compact structure in which the hearing aid circuit and microphone are configured inside the earphone and worn in the auditory canal. In such conventional hearing aids, the earphone unit and the microphone must inevitably be placed in close proximity, so sound waves from the earphone unit are transmitted to the microphone that picks up sound, making the occurrence of howling inevitable.

[0024] To suppress howling that may occur in this way, conventional hearing aids are configured to firmly isolate the earphone unit and microphone inside the hearing aid, and to ensure that the earphone unit seals the user's ear canal.

[0025] However, conventional hearing aids with this structure do not allow air to pass through the user's ear canal, which can cause inflammation of the outer and inner ear canals with long-term use, and users frequently avoid wearing them due to the sensation of a foreign object in the ear canal. Furthermore, conventional hearing aids have limitations in that they cannot fully address severe hearing loss because they restrict the acoustic output of the earphone unit to suppress howling.

[0026] The present invention aims to solve these conventional problems by providing an over-ear headset type hearing aid that does not overwork the user's ear canal, is equipped with means to prevent howling, provides high-quality sound, and also has a Bluetooth audio function.

[0027]

[0028] Drawing 5 illustrates the external configuration of an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention. The over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention has a basic configuration comprising an over-ear type left headset (300) and a right headset (320) that cover the user's ears, a headband (100) that connects and elastically supports the headsets, and a head cushion (110) fixedly positioned on the headband (100) so as to be located between the headband (100) and the user's head. The head cushion (110) may be configured such that the interior is made of a soft elastic fiber or sponge material and the exterior is wrapped with a covering.

[0029] In the headband (100), a left microphone hole (100a) and a right microphone hole (100b) are formed spaced apart to the left and right, and a microphone is embedded between the microphone holes of the headband (100) and the head cushion (110). On the outer surface of the left headset (300), a left hearing aid volume (204) for adjusting the volume of the left hearing aid is installed, and on the outer surface of the right headset (320), a right hearing aid volume (205) for adjusting the volume of the right hearing aid is installed together with a mode selection switch (214). The mode selection switch (214) is a two-circuit two-contact structure consisting of a switch having a terminal c1 that is switched-connected to two contacts a1 and b1, and a switch having a terminal c2 that is linked to the switch and is switched-connected to two contacts a2 and b2, and the detailed operational relationship will be described later.

[0030] In addition, a power switch (220) and a Bluetooth audio function switch are installed on the right headset (320). The Bluetooth audio function switch performs existing functions such as song selection, pause, and phone calls, and a detailed description is omitted below. Furthermore, in the present invention, the left headset (300) and the right headset (320) are not fixed and limited to the above structure, and the left headset (300) and the right headset (320) may be swapped and configured as needed.

[0031]

[0032] Drawing 6 illustrates the microphone installation configuration of an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention. In the present invention, the hearing aid microphones are each installed by being embedded inside the head cushion (110) within the left microphone hole (100a) and the right microphone hole (100b), which are spaced apart on the left and right sides of the headband (100), respectively, thereby suppressing howling caused by the output sound of the left headset (300) and the right headset (320). However, the output sound of the left headset (300) and the right headset (320) may be transmitted to the microphones as solid sound through the headband (100), causing howling. To suppress this, the present invention provides a configuration for blocking the transmission of solid sound to the hearing aid microphones.

[0033] As shown in the drawing, regarding the left microphone hole (100a) and the right microphone hole (100b) spaced apart on the left and right sides of the headband (100), a left wind screen (200a) that blocks noise caused by wind or airflow is placed at the inner bottom of the left microphone hole (100a), and a left microphone (200) is placed at the bottom of the left wind screen (200a). A left soundproof tube (200b) surrounding the left wind screen (200a) and the left microphone (200) is fixed around the left microphone hole (100a), and the output line (200c) of the left microphone (200) passes through the left soundproof tube (200b) and is connected to the interior of the left headset (300). The above-mentioned left sound-insulating tube (200b) is intended to block solid sound transmission and is composed of neoprene or silicone resin with high acoustic impedance to block solid sound transmitted to the body of the microphone. As a result, only external sound waves passing through the left microphone hole (100a) and the left windscreen (200a) are transmitted to the left microphone (200) of the present invention, thereby preventing howling.

[0034] Also, similar to the left side, a right wind screen (201a) that blocks noise caused by wind or airflow is placed at the inner bottom of the right microphone hole (100b), and a right microphone (201) is placed at the bottom of the right wind screen (201a). A right soundproof tube (201b) surrounding the right wind screen (201a) and the right microphone (201) is fixed around the right microphone hole (100b), and the output line (201c) of the right microphone (201) passes through the right soundproof tube (201b) and is connected to the interior of the right headset (320). The right soundproof tube (201b) is also intended to block solid sound transmission and is composed of neoprene or silicone resin with high acoustic impedance to block solid sound transmitted to the body of the microphone. From this, the right microphone (201) of the present invention can also prevent howling by transmitting only external sound waves through the right microphone hole (100b) and the right windscreen (201a).

[0035] The assembly of the left microphone (200) and the right microphone (201) configured as described above is installed by being embedded inside the head cushion (110) within the left microphone hole (100a) and the right microphone hole (100b) which are spaced apart on the left and right sides of the headband (100), respectively, so that howling caused by the output sound of the left headset (300) and the right headset (320) is suppressed.

[0036] In addition, a headset connection cable (120) composed of multiple wires that electrically connect the left headset (300) and the right headset (320) is embedded and fixed inside the head cushion (110).

[0037] In the left headset (300) and the right headset (320), the opposing surfaces that come into contact with the user's head, that is, the user's ears, are configured with a left ear pad (308) and a right ear pad (322), respectively. The ear pads are of the over-ear headset type and cover the user's ears. The inside is made of soft elastic fiber or sponge material, and the outside is made of a urethane covering. When worn, they cover the outside of the ears and adhere closely to the head, thereby preventing the output sound of the left headset (300) and the right headset (320) from leaking out, and thus suppressing howling.

[0038] Accordingly, the over-ear headset type hearing aid equipped with a Bluetooth audio function of the present invention provides a feature that prevents howling of the hearing aid through the installation structure of the headset and the microphone.

[0039]

[0040] Drawing 7 illustrates the detailed configuration of the headset of the present invention. Since the drawing includes the connection relationship between the headset and the assembly of the left microphone (200) and the right microphone (201) described above, the headset configuration shown at the bottom of the drawing will be explained in detail.

[0041] The left headset (300) of the present invention is;

[0042] It consists of a left headset housing (302) that is elastically supported and coupled to a headband (100), a left circuit board (304) mounted inside the left headset housing (302), a left sound transducer (210) that is connected to the circuit of the left circuit board (304) and provides sound output, a left baffle (306) that is sealed and fixed to cover the left headset housing (302) together with the left circuit board (304), and a left ear pad (308) that is fixed to the left baffle (306), wherein the sound wave radiating surface of the left sound transducer (210) is fixed to one side and outputs sound to the opposite side, and the left baffle (306) is sealed and fixed to cover the left headset housing (302). A headset connection cable (120) composed of a plurality of wires and an output line (200c) of a left microphone (200) is connected to the circuit of the left circuit board (304).

[0043] The right headset (320) of the present invention is;

[0044] It consists of a right headset housing (322) that is elastically supported and coupled to a headband (100), a right circuit board (304) mounted inside the right headset housing (322) including a rechargeable battery (218), a right sound transducer (211) that is connected to the circuit of the right circuit board (324) to provide sound output, a right baffle (326) that is sealed and fixed to cover the right headset housing (322) together with the right circuit board (324), and a right ear pad (328) that is fixed to the right baffle (326), wherein the sound wave radiating surface of the right sound transducer (211) is fixed to one side and outputs sound to the opposite side. A headset connection cable (120) composed of a plurality of wires and an output line (201c) of a right microphone (201) is connected to the circuit of the right circuit board (324).

[0045]

[0046] Hereinafter, an embodiment of the circuit configuration provided as an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention is described. In the embodiment of the present invention, a circuit configuration is provided comprising the aforementioned left microphone (200) and right microphone (201) assembly, a left circuit board (304) mounted inside the left headset housing (302), a right circuit board (304) mounted inside the right headset housing (322), and a headset connection cable (120).

[0047]

[0048] Drawing 8 illustrates a first embodiment of the present invention.

[0049] As a circuit configuration of a left circuit board (304) embedded in the left headset (300) of the present invention;

[0050] The output of the left microphone (200) installed on the headband (100) is connected to a left hearing compensation / amplification circuit (202) that amplifies this signal and includes a user's hearing compensation circuit. The output signal of the left hearing compensation / amplification circuit (202) is connected to a left hearing aid volume (204) that adjusts the gain by the user, and the signal with the gain adjusted by the left hearing aid volume (204) is connected to the first input of a left mixer circuit (206) that mixes two inputs. The output signal of the left mixer circuit (206) passes through a left audio amplifier (208) to drive a left acoustic converter (210) and output a hearing aid sound wave.

[0051] As a circuit configuration of the right circuit board (324) embedded in the right headset (320);

[0052] A charging battery (218) connected to a charging circuit (216) and a power switch (220) that supplies or cuts off the power of the charging battery (218) to the circuit's power supply VDD are provided, and the output of a right microphone (201) installed on a headband (100) is input to a right hearing compensation / amplification circuit (203) that amplifies this signal and includes a user's hearing compensation circuit. The output signal of the right hearing compensation / amplification circuit (203) is connected to a right hearing aid volume (205) that adjusts the gain by the user, and the signal with the gain adjusted by the right hearing aid volume (205) is connected to the first input of a right mixer circuit (207) that mixes two inputs. The output signal of the right mixer circuit (207) passes through a right audio amplifier (209) to drive a right acoustic converter (212) and output a hearing aid sound wave. In addition, the circuit of the right circuit board (324) is paired with a mobile device and includes a Bluetooth module (212) that outputs a left Bluetooth audio signal BTL and a right Bluetooth audio signal BTR.

[0053] The circuit of the right circuit board (324) of the present invention is provided with a mode selection switch (214) having a 2-circuit 2-contact structure, comprising a switch having a terminal c1 that is switched connected to two contacts a1 and b1, and a switch having a terminal c2 that is switched connected to two contacts a2 and b2 in conjunction with said switch. The left Bluetooth audio signal BTL is connected to the a1 contact of the mode selection switch (214), and the right Bluetooth audio signal BTR is connected to the a2 contact. The c1 terminal is connected to the second input of the left mixer circuit (206), and the c2 terminal is connected to the second input of the right mixer circuit (207), thereby allowing the signals of the left hearing aid volume (204) and the right hearing aid volume (205) to be mixed, respectively. The headset connection cable (120), which consists of a plurality of wires electrically connecting the left headset (300) and the right headset (320) of the present invention from this circuit configuration, is composed of a VDD power line that is turned ON / OFF by a power switch (220), a ground line, and a wire connecting the c1 terminal of a mode selection switch (214) located on the right circuit board (324) and the second input of the left mixer circuit (206).

[0054] According to the first embodiment of the present invention, when the power switch (220) is in the ON state, the a1 contact of the mode selection switch (214) is connected to the c1 terminal and the a2 contact is connected to the c2 terminal, so that the left and right outputs of the hearing aid are mixed with the left and right outputs of the Bluetooth module (212) respectively and output to the sound converter. When the mode selection switch (214) is switched to the b1 and b2 contacts, the left and right outputs of the Bluetooth module (212) are blocked and only the left and right outputs of the hearing aid are provided. Therefore, the first embodiment of the present invention can be selectively used to provide background music as Bluetooth audio to the hearing aid in a noisy environment or to perform functions of the hearing aid alone.

[0055]

[0056] Drawing 9 illustrates a second embodiment of the present invention.

[0057] As a circuit configuration of a left circuit board (304) embedded in the left headset (300) of the present invention;

[0058] The output of the left microphone (200) installed on the headband (100) is connected to a left hearing compensation / amplification circuit (202) that amplifies this signal and includes a user's hearing compensation circuit. The output signal of the left hearing compensation / amplification circuit (202) is connected to a left hearing aid volume (204) that adjusts the gain by the user, and a signal with the gain adjusted is output from the left hearing aid volume (204).

[0059] The output of the left hearing aid volume (204) is connected to the b1 contact of the mode selection switch (214) of the circuit of the right circuit board (324). The mode selection switch (214) is a two-circuit two-contact structure composed of a switch having a c1 terminal that is switched connected to the two contacts a1 and b1, and a switch having a c2 terminal that is switched connected to the two contacts a2 and b2 in conjunction with the switch, and is configured so that the c1 terminal of the mode selection switch (214) drives the left sound converter (210) through the left audio amplifier (208) to output a hearing aid sound wave.

[0060] As a circuit configuration of the right circuit board (324) embedded in the right headset (320);

[0061] A charging battery (218) connected to a charging circuit (216) and a power switch (220) that provides power from the charging battery (218) to the circuit's power supply VDD are provided, and the output of a right microphone (201) installed on the headband (100) is input to a right hearing compensation / amplification circuit (203) that amplifies this signal and includes a user's hearing compensation circuit. The output signal of the right hearing compensation / amplification circuit (203) is connected to a right hearing aid volume (205) that adjusts the gain by the user, and the output of the right hearing aid volume (205) is connected to the b2 contact of a mode selection switch (214) of the right circuit board (324) circuit, and the c2 terminal of the mode selection switch (214) is configured to drive a right sound converter (211) through a right audio amplifier (209) to output a hearing aid sound wave.

[0062] In addition, the circuit of the right circuit board (324) is paired with a mobile device and includes a Bluetooth module (212) that outputs a left Bluetooth audio signal BTL and a right Bluetooth audio signal BTR.

[0063] The circuit of the right circuit board (324) of the present invention is configured to have a mode selection switch (214) with a two-circuit two-contact structure, comprising a switch having a terminal c1 that is switched connected to two contacts a1 and b1, and a switch having a terminal c2 that is switched connected to two contacts a2 and b2 in conjunction with said switch, and a left Bluetooth audio signal BTL is connected to the a1 contact of said mode selection switch (214) and a right Bluetooth audio signal BTR is connected to the a2 contact, and the c2 terminal is configured to drive the right sound converter (211) through the right audio amplifier (209) to output a hearing aid sound wave.

[0064] The headset connection cable (120), which consists of a plurality of wires electrically connecting the left headset (300) and the right headset (320) of the present invention from this circuit configuration, is composed of a VDD power line that is turned ON / OFF by a power switch (220), a ground line, a wire connecting the b1 contact of a mode selection switch (214) located on the right circuit board (324) and the output of the left hearing aid volume (204), and a wire connecting the c1 terminal and the input of the left audio amplifier (208).

[0065] According to the second embodiment of the present invention, when the a1 contact of the mode selection switch (214) is connected to the c1 terminal and the a2 contact is connected to the c2 terminal depending on the operation of the power switch (220), the left and right outputs of the Bluetooth module (212) are each output to the sound converter, and when the mode selection switch (214) is switched to the b1 and b2 contacts, the left and right outputs of the Bluetooth module (212) are blocked and only the left and right outputs of the hearing aid are provided. Therefore, the first embodiment of the present invention can be used to selectively drive the hearing aid and Bluetooth audio.

[0066]

[0067] Drawing 10 illustrates a third embodiment of the present invention.

[0068] As a circuit configuration of a left circuit board (304) embedded in the left headset (300) of the present invention;

[0069] The output of the left microphone (200) installed on the headband (100) is connected to a left hearing compensation / amplification circuit (202) that amplifies this signal and includes a user's hearing compensation circuit. The output signal of the left hearing compensation / amplification circuit (202) is connected to a left hearing aid volume (204) that adjusts the gain by the user, and the signal with the gain adjusted by the left hearing aid volume (204) is connected to the first input of a left mixer circuit (206) that mixes two inputs. The output signal of the left mixer circuit (206) passes through a left audio amplifier (208) to drive a left acoustic converter (210) and output a hearing aid sound wave.

[0070] As a circuit configuration of the right circuit board (324) embedded in the right headset (320);

[0071] A charging battery (218) connected to a charging circuit (216) and a power switch (220) that supplies or cuts off the power of the charging battery (218) to the circuit's power supply VDD are provided, and the output of a right microphone (201) installed on a headband (100) is input to a right hearing compensation / amplification circuit (203) that amplifies the signal and includes a user's hearing compensation circuit.

[0072] The output signal of the left auditory compensation / amplification circuit (203) is connected to the right hearing aid volume (205), which adjusts the gain by the user, and the signal with the adjusted gain from the right hearing aid volume (205) is connected to the first input of the right mixer circuit (207), which mixes the two inputs. The output signal of the right mixer circuit (207) passes through the right audio amplifier (209) to drive the right acoustic converter (211) and output a hearing aid sound wave. Additionally, the circuit of the right circuit board (324) is paired with a mobile device and is equipped with a Bluetooth module (212) that outputs a left Bluetooth audio signal BTL and a right Bluetooth audio signal BTR, and the left Bluetooth audio signal BTL is connected to the second input of the left mixer circuit (206), and the right Bluetooth audio signal BTR is connected to the second input of the right mixer circuit (207) so that they are mixed with the signals of the left and right hearing aid volumes, respectively.

[0073] The circuit of the right circuit board (324) of the present invention is equipped with a mode selection switch (214) having a 2-circuit 2-contact structure, comprising a switch having a c1 terminal that is switched connected to two contacts a1 and b1, and a switch having a c2 terminal that is switched connected to two contacts a2 and b2 in conjunction with said switch, and is connected to a power VDD that is turned ON / OFF by a power switch (220) in common with the c1 and c2 terminals, and the power VDD of the Bluetooth module (212) is connected to the a1 contact of said mode selection switch (214), and the power of the left auditory compensation / amplification circuit (202) is connected to the b1 contact, and the power line of the left auditory compensation / amplification circuit (203) is connected to the b2 contact. At this time, power is supplied to the left and right mixer circuits (206), (207) and left and right audio amplifiers (208), (209) when the power switch (220) is turned ON. When the a1 and a2 contacts are connected to the c1 and c2 terminals respectively according to the operation of the mode selection switch (214), the Bluetooth module (212) operates so that the left and right Bluetooth audio signals pass through the left and right audio amplifiers (208), (209) respectively to drive the left and right sound converters (210), (211) and output the Bluetooth audio signals.

[0074] When the above mode selection switch (214) is switched to contacts b1 and b2, the power of the Bluetooth module (212) is cut off and power is supplied to the left and right hearing compensation / amplification circuits (202) and (203) of the hearing aid, so only the left and right outputs of the hearing aid are provided. From this circuit configuration, the headset connection cable (120), which is composed of a plurality of wires electrically connecting the left headset (300) and the right headset (320) of the present invention, is composed of a VDD power line that is turned ON / OFF by the power switch (220), a ground line, a wire connecting the b1 contact of the mode selection switch (214) located on the right circuit board (324) and the power line of the left hearing compensation / amplification circuit (202), and a wire connecting the left Bluetooth audio signal BTL of the Bluetooth module (212) to the second input of the left mixer circuit (206).

[0075] The third embodiment of the present invention performs the same function in that it selectively drives a hearing aid and Bluetooth audio, but provides a power saving function that can reduce power consumption by turning ON / OFF the power of the Bluetooth module (212) and the left and right hearing compensation / amplification circuits (202), (203) of the hearing aid.

[0076]

[0077] Drawing 11 illustrates the wearing structure of an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention. A user wearing an over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention turns on the power switch (220), pairs the mobile device with the Bluetooth module (212), sets the volume of the hearing aid by adjusting the left and right hearing aid volumes (204), (205), and then selects and switches the usage mode using the mode selection switch (214). After the mobile device and the Bluetooth module (212) are paired and the hearing aid volume is set, the over-ear headset type hearing aid equipped with a Bluetooth audio function according to the present invention can be conveniently used by simply turning the power switch (220) ON / OFF and operating the mode selection switch (214).

[0078]

[0079] Although the over-ear headset type hearing aid equipped with Bluetooth audio functions of the present invention as described above has been described by limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various modifications and variations are possible within the scope of the technical concept of the present invention and the equivalent scope of the patent claims described below by those skilled in the art to which the present invention belongs.

[0080] The present invention is applicable to the over-ear headset type hearing aid industry, equipped with Bluetooth audio functions and designed to prevent howling.

Claims

1. In an over-ear headset type hearing aid equipped with Bluetooth audio functions, A left headset (300) of the over-ear type that covers the user's ears; and a right headset (320); A headband (100) that elastically supports the above headsets by connecting them; A head cushion (110) fixedly positioned on the headband (100) so as to be located between the headband (100) and the user's head; is provided, The headband (100) has a left microphone hole (100a); and The right microphone hole (100b) is formed spaced apart from the left and right sides, and A microphone is embedded between the microphone holes of the headband (100) and the head cushion (110), respectively. On the outer surface of the above-mentioned left headset (300), there is a left hearing aid volume (204) for adjusting the volume of the left hearing aid; On the outer surface of the right headset (320), a right hearing aid volume control (205) and a mode selection switch (214) for controlling the volume of the right hearing aid are installed, and The above mode selection switch (214) is, A two-circuit two-contact structure comprising a switch having a terminal c1 that is switched-connected to two contacts a1 and b1, and a switch having a terminal c2 that is linked to the switch and is switched-connected to two contacts a2 and b2; An over-ear headset type hearing aid equipped with a Bluetooth audio function characterized by being.

2. In paragraph 1, the over-ear headset type hearing aid equipped with the Bluetooth audio function is, The headband (100) is provided with a left microphone hole (100a) and a right microphone hole (100b) spaced apart on the left and right sides, and A left windscreen (200a) that blocks noise caused by wind or airflow at the inner lower side of the above-mentioned left microphone hole (100a); and, A left microphone (200) is positioned at the bottom of the above left windscreen (200a), and A left soundproof tube (200b) surrounding the left windscreen (200a) and the left microphone (200) is fixed around the left microphone hole (100a), and The output line (200c) of the left microphone (200) passes through the left soundproof tube (200b) and is connected to the interior of the left headset (300). A right wind screen (201a) that blocks noise caused by wind or airflow at the inner lower side of the right microphone hole (100b); and, A right microphone (201) is positioned at the bottom of the right windscreen (201a) above, and A right soundproof tube (201b) surrounding the right windscreen (201a) and the right microphone (201) is fixed around the right microphone hole (100b), and The output line (201c) of the right microphone (201) passes through the right soundproof tube (201b) and is connected to the inside of the right headset (320) to prevent howling, and In addition, a headset connection cable (120) composed of a plurality of wires that electrically connect the left headset (300) and the right headset (320) is embedded and fixed inside the head cushion (110). On the opposing surfaces of the left headset (300) and the right headset (320) that come into contact with the user's ears, there is a left ear pad (308) and a right ear pad (322) of the over-ear headset type that cover the user's ears and fit snugly against the head, respectively. An over-ear headset type hearing aid equipped with a Bluetooth audio function, characterized by being equipped with 3. In paragraph 2, the above-mentioned left headset (300) is, A left headset housing (302) that is elastically supported and coupled to a headband (100), and A left circuit board (304) mounted inside the left headset housing (302); A left sound converter (210) connected to the circuit of the left circuit board (304) above to provide sound output; A left baffle (306) that is sealed and fixed to cover the left headset housing (302) together with the left circuit board (304), and has a sound wave radiating surface of the left acoustic transducer (210) fixed to one side and outputs sound to the opposite side; It is composed of a left ear pad (308) fixed to the above left baffle (306), and On the left circuit board (304) above, there is an output line (200c) of the left microphone (200) and a headset connection cable (120) composed of a plurality of wires; An over-ear headset type hearing aid equipped with a Bluetooth audio function, characterized by being configured to be connected to a circuit.

4. In paragraph 2, the right headset (320) is, A right headset housing (322) that is elastically supported and coupled to a headband (100); and, A right circuit board (304) mounted inside the right headset housing (322), including a rechargeable battery (218); A right acoustic converter (211) connected to the circuit of the right circuit board (324) above to provide an acoustic output; A right baffle (326) that is sealed and fixed to cover the right headset housing (322) together with the right circuit board (324), and has a sound wave radiating surface of the right acoustic transducer (211) fixed to one side and outputs sound to the opposite side; It is composed of a right ear pad (328) fixed to the right baffle (326) above, and On the right circuit board (324) above, there is an output line (201c) of the right microphone (201) and a headset connection cable (120) composed of a plurality of wires; An over-ear headset type hearing aid equipped with a Bluetooth audio function, characterized by being configured to be connected to a circuit.

5. As a first embodiment of the left circuit board (304) embedded in the left headset (300) in paragraph 4, The output of the left microphone (200) installed in the headband (100) is connected to a left hearing compensation / amplification circuit (202) that amplifies this signal and includes a user's hearing compensation circuit; and The output signal of the above-mentioned left hearing compensation / amplification circuit (202) is connected to a left hearing aid volume (204) for which the user adjusts the gain; and The signal with the gain adjusted in the above-mentioned left hearing aid volume (204) is connected to the first input of a left mixer circuit (206) that mixes two inputs, and The output signal of the above left mixer circuit (206) passes through the left audio amplifier (208). An over-ear headset type hearing aid equipped with a Bluetooth audio function, characterized by being configured to output a hearing aid sound wave by driving a left sound converter (210).

6. As a first embodiment of the right circuit board (324) embedded in the right headset (320) in paragraph 4, A rechargeable battery (218) connected to a charging circuit (216); and, A power switch (220) that supplies or cuts off the power of the above-mentioned rechargeable battery (218) to the circuit's power supply VDD; and The output of the right microphone (201) installed on the headband (100) is input to a right hearing compensation / amplification circuit (203) that amplifies this signal and includes a user's hearing compensation circuit, and The output signal of the above right hearing compensation / amplification circuit (203) is connected to a right hearing aid volume (205) that adjusts the gain by the user; and The signal with the gain adjusted in the above right hearing aid volume (205) is connected to the first input of a right mixer circuit (207) that mixes two inputs, and The output signal of the above right mixer circuit (207) passes through the right audio amplifier (209). The right acoustic transducer (212) is driven to output a hearing aid sound wave, A Bluetooth module (212) that is paired with a mobile device and outputs a left Bluetooth audio signal BTL and a right Bluetooth audio signal BTR; is provided. A mode selection switch (214) having a two-circuit two-contact structure, comprising a switch having a terminal c1 that is switched-connected to two contacts a1 and b1, and a switch having a terminal c2 that is linked to the switch and is switched-connected to two contacts a2 and b2; The left Bluetooth audio signal BTL is connected to the a1 contact of the above mode selection switch (214) and the right Bluetooth audio signal BTR is connected to the a2 contact, and By connecting the c1 terminal to the second input of the left mixer circuit (206) and the c2 terminal to the second input of the right mixer circuit (207), the signals of the left hearing aid volume (204) and the right hearing aid volume (205) are respectively mixed. An over-ear headset type hearing aid equipped with a Bluetooth audio function, characterized by comprising a headset connection cable (120) that electrically connects the left headset (300) and the right headset (320), the VDD power line that is turned ON / OFF by a power switch (220), a ground line, and a wire connecting the c1 terminal of a mode selection switch (214) located on the right circuit board (324) and the second input of the left mixer circuit (206).

7. As a second embodiment of the left circuit board (304) embedded in the left headset (300) in paragraph 4, The output of the left microphone (200) installed in the headband (100) is connected to a left hearing compensation / amplification circuit (202) that amplifies this signal and includes a user's hearing compensation circuit; and The output signal of the above-mentioned left hearing compensation / amplification circuit (202) is connected to a left hearing aid volume (204) for which the user adjusts the gain; and A mode selection switch (214) having a 2-circuit 2-contact structure, comprising a switch having a terminal c1 that is switched-connected to two contacts a1 and b1, and a switch having a terminal c2 that is linked to said switch and is switched-connected to two contacts a2 and b2; is provided on the right circuit board (324). The output of the above-mentioned left hearing aid volume (204) is connected to the b1 contact of the mode selection switch (214) of the circuit of the right circuit board (324), and An over-ear headset type hearing aid equipped with a Bluetooth audio function, characterized in that the c1 terminal of the above mode selection switch (214) is configured to drive the left sound converter (210) through the left audio amplifier (208) to output a hearing aid sound wave.

8. As a second embodiment of the right circuit board (324) embedded in the right headset (320) in paragraph 4, A rechargeable battery (218) connected to a charging circuit (216); and, A power switch (220) that provides power from the above-mentioned rechargeable battery (218) to the circuit's power supply VDD; is provided, The output of the right microphone (201) installed on the headband (100) is input to the right hearing compensation / amplification circuit (203) which amplifies this signal and includes the user's hearing compensation circuit; The output signal of the above right hearing compensation / amplification circuit (203) is connected to a right hearing aid volume (205) that adjusts the gain by the user; and A mode selection switch (214) having a two-circuit two-contact structure, comprising a switch having a c1 terminal that is switched-connected to two contacts a1 and b1, and a switch having a c2 terminal that is linked to the switch and is switched-connected to two contacts a2 and b2; The output of the right hearing aid volume (205) is connected to the b2 contact of the mode selection switch (214), and the c2 terminal of the mode selection switch (214) drives the right sound converter (211) through the right audio amplifier (209) to output a hearing aid sound wave. A Bluetooth module (212) that is paired with a mobile device and outputs a left Bluetooth audio signal BTL and a right Bluetooth audio signal BTR; is provided. The left Bluetooth audio signal BTL is connected to the a1 contact of the above mode selection switch (214) and the right Bluetooth audio signal BTR is connected to the a2 contact, and the c2 terminal drives the right sound transducer (211) through the right audio amplifier (209) to output a hearing aid sound wave. A headset connection cable (120) composed of a plurality of wires that electrically connect the left headset (300) and the right headset (320), comprising a VDD power line that is turned ON / OFF by a power switch (220), a ground line, a wire connecting the b1 contact of a mode selection switch (214) located on the right circuit board (324) and the output of the left hearing aid volume (204), and a wire connecting the c1 terminal and the input of the left audio amplifier (208); An over-ear headset type hearing aid equipped with a Bluetooth audio function characterized by being configured.

9. As a third embodiment of the left circuit board (304) embedded in the left headset (300) in paragraph 4, The output of the left microphone (200) installed in the headband (100) is connected to a left hearing compensation / amplification circuit (202) that amplifies this signal and includes a user's hearing compensation circuit; and The output signal of the above-mentioned left hearing compensation / amplification circuit (202) is connected to a left hearing aid volume (204) that adjusts the gain by the user, and The signal with the gain adjusted in the above-mentioned left hearing aid volume (204) is connected to the first input of a left mixer circuit (206) that mixes two inputs, The output signal of the above-mentioned left mixer circuit (206) passes through the left audio amplifier (208) and drives the left sound converter (210) to output a hearing aid sound wave. An over-ear headset type hearing aid equipped with a Bluetooth audio function characterized by being configured.

10. As a third embodiment of the right circuit board (324) embedded in the right headset (320) in paragraph 4, A rechargeable battery (218) connected to a charging circuit (216); and, A power switch (220) that supplies or cuts off the power of the above-mentioned rechargeable battery (218) to the circuit's power supply VDD; and The output of the right microphone (201) installed on the headband (100) is input to the right hearing compensation / amplification circuit (203) which amplifies the signal and includes the user's hearing compensation circuit; The output signal of the above-mentioned left hearing compensation / amplification circuit (203) is connected to the right hearing aid volume (205), which adjusts the gain by the user, and The signal with the gain adjusted in the above right hearing aid volume (205) is connected to the first input of the right mixer circuit (207) that mixes two inputs, and The output signal of the right mixer circuit (207) passes through the right audio amplifier (209) to drive the right acoustic converter (211) and outputs a hearing aid sound wave, A Bluetooth module (212) that is paired with a mobile device and outputs a left Bluetooth audio signal BTL and a right Bluetooth audio signal BTR; is provided, The left Bluetooth audio signal BTL is connected to the second input of the left mixer circuit (206), and the right Bluetooth audio signal BTR is connected to the second input of the right mixer circuit (207) and is mixed with the signals of the left and right hearing aid volumes, respectively. A mode selection switch (214) having a two-circuit two-contact structure is provided, comprising a switch having a terminal c1 that is switched-connected to two contacts a1 and b1, and a switch having a terminal c2 that is linked to the switch and is switched-connected to two contacts a2 and b2. Power VDD, which is turned ON / OFF by a power switch (220), is connected to the c1 and c2 terminals in common, and power VDD of the Bluetooth module (212) is connected to the a1 contact of the mode selection switch (214), and power of the left hearing compensation / amplification circuit (202) is connected to the b1 contact, and power line of the left hearing compensation / amplification circuit (203) is connected to the b2 contact. A headset connection cable (120) composed of a plurality of wires that electrically connect the left headset (300) and the right headset (320), comprising a VDD power line that is turned ON / OFF by a power switch (220), a ground line, a wire connecting the b1 contact of a mode selection switch (214) located on the right circuit board (324) and the power line of the left hearing compensation / amplification circuit (202), and a wire connecting the left Bluetooth audio signal BTL of the Bluetooth module (212) to the second input of the left mixer circuit (206); An over-ear headset type hearing aid equipped with a Bluetooth audio function characterized by being configured.

Images