CN115606195A - Earphone set - Google Patents
Earphone set Download PDFInfo
- Publication number
- CN115606195A CN115606195A CN202080099635.5A CN202080099635A CN115606195A CN 115606195 A CN115606195 A CN 115606195A CN 202080099635 A CN202080099635 A CN 202080099635A CN 115606195 A CN115606195 A CN 115606195A
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- microphone
- earphone
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- speaker
- acoustic
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- 238000004891 communication Methods 0.000 claims abstract description 35
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 24
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 210000000883 ear external Anatomy 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 12
- 238000000465 moulding Methods 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 241000746998 Tragus Species 0.000 description 16
- 210000004556 brain Anatomy 0.000 description 7
- 210000000613 ear canal Anatomy 0.000 description 6
- 230000005236 sound signal Effects 0.000 description 4
- 230000036772 blood pressure Effects 0.000 description 3
- 210000001715 carotid artery Anatomy 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 210000000707 wrist Anatomy 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 210000001061 forehead Anatomy 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000036757 core body temperature Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- 150000004706 metal oxides Chemical class 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/251—Means for maintaining electrode contact with the body
- A61B5/256—Wearable electrodes, e.g. having straps or bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/332—Portable devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
- A61B7/04—Electric stethoscopes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Cardiology (AREA)
- Physiology (AREA)
- Psychiatry (AREA)
- Psychology (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The present invention addresses the problem of providing a headset that can be stably worn on the ear and continuously acquire a biological signal even when the headset is being worn for a long period of time or during exercise, and that does not require a complicated molding process for molding the ear cavity, the external ear shape, and the like of the wearer for each wearer of a wireless headset that acquires a biological signal. The earphone of the present invention is characterized by comprising: an acoustic duct extending in a uniaxial direction; a speaker which is disposed on the proximal end side of the acoustic duct with a displacement in one side in a direction orthogonal to the uniaxial direction, and which outputs sound in the uniaxial direction; a microphone disposed on a rear surface side of the speaker with respect to the acoustic duct, and configured to sense vibration; a wireless communication board disposed on a back surface side of the microphone with respect to the acoustic duct; and a case having a front portion that houses the speaker, a coupling portion that is coupled to the back surface side of the front portion with respect to the acoustic catheter and houses the microphone, and a rear portion that is coupled to the back surface side of the coupling portion with respect to the acoustic catheter and expands to the other side in the orthogonal direction to house the wireless communication board, the front portion having a disk-shaped base end portion that supports the base end of the acoustic catheter, expands from the base end to the one side via an inclined surface inclined with respect to the uniaxial direction, and is coupled to the other side in the orthogonal direction.
Description
Technical Field
The invention relates to an earphone, in particular to a wireless earphone for acquiring biological signals.
Background
Conventionally, an oscillometric method is known as a method of measuring blood pressure. The oscillometric method is a method in which the upper arm or the wrist is wrapped around a cuff to compress a blood vessel, the flow of blood (blood flow) is temporarily stopped, and then the cuff pressure is released to reduce the pressure, and the blood pressure is measured based on the cuff pressure reflecting the vibration of the blood vessel wall in synchronization with the pulsation of the heart.
However, in the conventional oscillometric method, a cuff needs to be wrapped around the upper arm or wrist of the subject, and the cuff has a large load on the subject due to the tightening pressure of the cuff on the upper arm or wrist, which makes it difficult to continuously measure the blood pressure.
However, since this biometrics data measurement device needs to be shaped into a shape along the shape of the ear canal cavity and the shape of the external auditory meatus of the subject based on the three-dimensional data of the shape of the external ear of the subject, it is necessary to measure and shape the shape of the external ear of the subject for each subject, which is complicated.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2006-102257
Patent document 2: japanese laid-open patent publication No. 2006-102258
Patent document 3: japanese laid-open patent publication No. 2020-069272
Disclosure of Invention
Problems to be solved by the invention
The present invention addresses the problem of providing an earphone that can be stably worn on the ear and continuously acquire a biological signal even when the earphone is worn for a long period of time or during sports, without going through a complicated molding step of measuring and molding the ear cavity (ear cavity) and the external ear shape of the wearer for each wearer (subject) of the earphone that acquires the biological signal.
Means for solving the problems
The earphone of the present invention is characterized by comprising:
a sound tube extending in a uniaxial direction;
a speaker disposed on a proximal end side of the acoustic duct, and outputting sound in a single axis direction;
a microphone disposed on a back surface side of the speaker with respect to the acoustic duct at a distance from the speaker, and configured to sense vibration;
a wireless communication board disposed on a back surface side of the microphone with respect to an acoustic duct;
and a housing having a front portion having an inclined surface that is coupled to a proximal end of the acoustic pipe and is inclined with respect to the uniaxial direction, and an annular proximal end that is expanded in a direction orthogonal to the uniaxial direction to house the speaker, a coupling portion that is coupled to a rear surface side of the front portion with respect to the acoustic pipe and houses and supports the housed microphone, and a rear portion that is coupled to a rear surface side of the coupling portion with respect to the acoustic pipe and houses the wireless communication board.
According to this feature, even when the earphone is worn for exercise or worn for a long time, the earphone can be stably worn on the ear and a biological signal can be continuously obtained, and the earphone for obtaining a biological signal can be provided without going through a complicated molding process.
The earphone according to the present invention further includes a plurality of electrodes disposed around the speaker and accommodated in the proximal end portion of the front portion.
According to this feature, a biological signal can be obtained as an electric signal.
The earphone of the present invention is characterized by further comprising a ring body detachably fitted to the outside of the base end portion.
According to this feature, even when the earphone is worn for exercise or worn for a long time, it is possible to obtain a biological signal continuously while ensuring stable wearing to the ear, and it is possible to easily provide an earphone that obtains a biological signal without going through a complicated molding process.
The earphone according to the present invention is characterized by further comprising a ring body detachably fitted to the outside of the base end portion, and the ring body has the plurality of electrodes on the inner surface.
According to this feature, it is possible to surely obtain a biosignal as an electric signal.
The earphone of the present invention is characterized in that the ring body has a ring protrusion protruding outward in a convex shape.
According to this feature, the earphone can be provided without going through a complicated molding step of measuring and molding the shape of the external ear of the wearer for each wearer, and the fitting feeling when wearing the earphone can be improved, and stable wearing of the earphone on the ear can be ensured.
The earphone of the present invention is characterized in that the ring body is an elastic body.
With this feature, the fitting feeling when wearing the headphone can be further improved, and stable wearing on the ear can be ensured.
The earphone of the present invention is characterized in that the ring body has a plurality of conductive portions which are divided by insulating portions and are connected to the plurality of electrodes, respectively.
According to this feature, it is possible to surely obtain a biological signal of the subject.
The earphone of the present invention is characterized in that one of the conductive parts of the ring body has an arc-shaped part protruding in an arc shape.
According to this feature, when the earphone is worn, the arc portion can be worn on the tragus, and the earphone can be worn stably.
The earphone of the present invention is characterized in that the other of the conductive parts of the ring body thereof has an elongated part elongated from the conductive part.
By wearing the distal end portion of the extension portion on the forehead portion, brain waves can be obtained.
The earphone of the present invention is characterized in that the inclined surface is inclined at an angle of 25 to 35 degrees with respect to the orthogonal direction and is formed in a concave shape.
According to this feature, when the earphone is worn on the ear, the inclined surface abuts against the inner surface of the ear hole cavity, and thus the earphone can be worn stably.
The earphone of the present invention is characterized in that the front part of the earphone is eccentric from the base end of the sound tube to one side of the direction orthogonal to the uniaxial direction when viewed from one side of the uniaxial direction to the other side,
the rear part of the body has a shape in which the direction perpendicular to the uniaxial direction is the longitudinal direction when viewed from one side to the other side of the uniaxial direction.
According to this feature, since the speaker is housed in the front portion of the expansion, the speaker can be made large and oriented in the same direction as the sound guide tube, and the sound quality is good.
The earphone of the present invention is characterized in that a power supply for supplying power to the speaker, the microphone substrate disposed on the back side of the microphone with respect to the acoustic duct, and the wireless communication substrate is accommodated between the microphone substrate and the wireless communication substrate at the rear portion of the earphone.
According to this feature, it is also possible to house a microphone that obtains a biological signal and a wireless communication board (which may also include a power supply) that receives an audio signal by wireless communication in the rear portion.
The earphone of the present invention is characterized in that the rear portion thereof has an operation screen on the back side with respect to the sound tube.
According to this feature, a large operation screen can be provided on the back surface of the rear portion.
Effects of the invention
The earphone of the present invention can be stably worn on the ear and continuously obtain a biological signal even when the earphone is used for sports or worn for a long time, and can provide an earphone for obtaining a biological signal without going through a complicated molding process of measuring and molding the shape of the outer ear of a subject for each subject.
Drawings
Fig. 1 is an external view of a headphone according to embodiment 1 of the present invention;
fig. 2 is a schematic sectional view of a headphone according to embodiment 1 of the present invention;
fig. 3 is a schematic sectional view of a front part of the earphone according to embodiment 1 of the present invention;
fig. 4 is a schematic sectional view of a headset according to embodiment 2 of the invention;
fig. 5 is a schematic sectional view of a front part of the earphone according to embodiment 2 of the present invention;
fig. 6 is a schematic view of a state where the earphone of the embodiment of the present invention is worn on the ear as seen from the outside;
fig. 7 is a schematic cross-sectional view of a cross section including an external ear hole in a state where the earphone according to the embodiment of the present invention is worn on the ear.
Detailed Description
Fig. 1 shows an external view of a headphone 1 according to an embodiment of the present invention. The (a) is a top view, (B) is a left view, (C) is a front view, and (D) is a right view. Fig. 2 is anbase:Sub>A-base:Sub>A pattern sectional view of fig. 1 (base:Sub>A) showing an internal configuration of the headphone 1. The axial direction of the acoustic duct 3 perpendicular to the base end portion 23 is the Z-axis direction, and mutually orthogonal directions perpendicular to the Z-axis in the plane constituting the base end portion 23 are the X-axis and Y-axis directions.
The headset 1 is for the left ear, and includes an acoustic duct 3, a housing 2, a speaker 41, a microphone 42, and a wireless communication board 54. The right ear headphone 1 has a shape symmetrical to the left ear headphone 1 in the X axis direction.
The sound tube 3 is a tubular member that transmits sound output from the speaker 41. The acoustic duct 3 is formed into a cylindrical shape using, for example, a thermoplastic resin. The inner radius of the hollow portion is, for example, 3mm or more. A receiver (not shown) molded from silicone rubber or the like may be provided at the distal end of the sound tube 3. Thus, when the sound duct 3 is inserted into the outer ear hole 74, the earpiece (not shown) is deformed and fitted into the outer ear hole 74, and the sound duct 3 can be supported while maintaining airtightness in the outer ear hole 74.
The housing 2 is a case that houses the speaker 41, the microphone 42, the microphone board 43, the power supply 51, the main board 52, and the wireless communication board 54, and has a front portion 21, a coupling portion 26, and a rear portion 28. Anterior portion 21 is connected to posterior portion 28 by a junction 26. Further, the anterior portion 21, the joint portion 26, and the posterior portion 28 may be integrally molded from the same material as the acoustic duct 3, including the acoustic duct 3.
The front portion 21 is a portion that supports the base end of the acoustic duct 3 and houses the speaker 41. The front portion 21 has an inclined surface 22 inclined with respect to the Z-axis direction (or the X-axis direction orthogonal thereto) on the outer surface, and has an eccentric truncated cone-shaped proximal end portion 23 formed so as to expand slightly from the proximal end of the acoustic catheter 3 to the-X side but expand slightly to the + X side via the inclined surface, and expanding in the XY plane. This allows the speaker 41 to be housed in the front portion 21 close to the acoustic duct 3, and the front portion 21 can be housed in the ear cavity 72 without interfering with the tragus 71. The acoustic duct 3 is inclined at an angle Φ of 25 to 35 degrees, preferably about 30 degrees, with respect to the Z-axis direction, and the inclined surface 22 is inclined at an angle θ of 25 to 35 degrees, preferably about 30 degrees, with respect to the X-axis direction, and is formed in a concave shape. Thus, when the earphone 1 is worn on the ear 7, the acoustic duct 3 can be inserted into the ear canal 74 while the inclined surface 22 is in contact with the inner surface of the ear canal cavity 72.
The speaker 41 is a device that outputs sound. Since the front portion 21 is expanded from the base end of the acoustic duct 3 to the X side, a large speaker 41 can be provided. The speaker 41 vibrates a diaphragm oriented in a uniaxial direction (in this case, a Z-axis direction) by an electric signal input from the outside through a voice coil, a piezoelectric element, or the like, and emits a sound along a central axis parallel to the Z-axis passing through the center of the speaker 41 (that is, the diaphragm) (see fig. 7). The speaker 41 is housed in the front portion 21 at the proximal end side of the acoustic duct 3, offset in the Z-axis direction toward the X-axis direction with respect to the acoustic duct 3, and the housing 2 can be reliably worn on the tragus 71 and the navicular fossa 73.
It is preferable that the air hole 29 is provided on the side of the housing 2 (or the acoustic duct 3) facing the acoustic duct 3 of the speaker 41. An enclosed space is formed by the housing 2, the sound tube 3, the external ear hole 74 and the tympanic membrane. The air pressure of the space may be higher than the external air pressure. In that case, the characteristics of the sound transmitted in the space may change. This prevents the characteristic from changing. In the present embodiment, the air hole 29 is provided in the inclined surface 22.
Fig. 3 is a schematic sectional view B-B of fig. 1 (C) showing the front portion 21 of the ring body 24 fitted to the proximal end portion 23. The base end portion 23 is detachably fitted with an annular ring body 24 made of an elastic body at the outer periphery, so that the fitting feeling when the headphone 1 is worn can be improved, and the headphone 1 can be stably worn on the ear 7. Fig. 3 (a) shows that the ring body 24 has a ring protrusion 25 which protrudes outward convexly over a portion of about 1/4 of its circumference. The ring body 24 having the ring protrusion 25 with different protrusion heights is fitted to the base end portion 23 according to the shape (size) of the ear 7 of the wearer of the headphone 1, and the headphone 1 can be stably worn. When the device is attached to the small ear 7, the ring body 24 without the annular protrusion 25 may be fitted to the base end 23.
Fig. 3 (B) shows the arcuate portion 64 of the ring body 24 projecting in an arc shape at the portion where the ring body 24 contacts the tragus 71. By wearing the arc portion 64 on the tragus 71, it is possible to wear more stably and to obtain a biological signal from the tragus 71 more reliably, which is preferable.
Coupling portion 26 connects front portion 21 and rear portion 28, and houses and supports microphone 42. The microphone 42 is disposed apart from the speaker 41 so as not to pick up the vibration of the speaker 41. The microphone 42 senses, as pulse waves, vibrations of the carotid artery wall synchronized with the heartbeat and vibrations transmitted from the peripheral portion of the ear 7, particularly the tragus 71, and converts the pulse waves into electric signals to be transmitted to the microphone substrate 43 disposed on the back side of the microphone 42. The microphone 42 is not limited to the connection portion 26, and may be accommodated and supported in the rear portion 28, for example, as long as it can reliably sense the pulse wave sound.
On the other hand, the rear portion 28 is a portion that accommodates the microphone substrate 43, the power supply 51, the main substrate 52, and the wireless communication substrate 54 on the-Z side of the connection portion 26. The rear portion 28 has a substantially rectangular shape whose upper end (Y-axis direction) in the Y-axis direction is a long-axis direction is circular when viewed from one side in the uniaxial direction (Z-axis direction) to the other side (from the acoustic duct 3 side to the rear portion 28). The front portion 21 is disposed at a position about 1/4 of the diameter of the proximal portion 23 in the negative X-axis direction from the center line of the long axis direction of the rear portion 28 downward (-Y-axis direction) from the upper end of the rear portion 28 through the coupling portion 26. The rear portion 28 is exposed to the back surface side of the acoustic duct 3, i.e., the-Z surface, and supports an operation screen (not shown) such as a touch panel or an operation switch (not shown). This enables a large operation screen (not shown) to be provided on the housing 2.
The microphone 42 is a device that inputs the pulse wave as an audio signal. The microphone 42 receives, as a pulse wave transmitted from the tragus 71, vibration of the carotid artery wall synchronized with the heart beat by a pressure-sensitive element, a piezoelectric element, or the like, through the ring body 24, the front portion 21, and the connection portion 26, converts the pulse wave into an electric signal, and outputs the electric signal to the outside through the microphone substrate 43. In addition to the microphone 42, a sensor such as an optical heartbeat sensor or a thermometer may be disposed between the connection portion 26 and the anterior portion 21 to measure the core body temperature or the oxygen saturation level.
The microphone substrate 43 is a substrate provided with a control circuit that converts biological signals obtained by the microphone 42, the electrodes 61, and the sensors into electric signals and transmits the electric signals to the wireless communication substrate 54.
The power supply 51 supplies power to the speaker 41, the microphone 42, the microphone board 43, the main board 52, and the wireless communication board 54. The power supply 51 is disposed between the microphone substrate 43 and the main substrate 52 in the case 2 and is housed in the rear portion 28. The power supply 51 may be housed in the front portion 21 or the coupling portion 26, or may be housed so as to straddle the front portion 21, the coupling portion 26, and the rear portion 28. This allows a large power supply 51 to be provided in the space between the speaker 41 and the main board 52, and thus allows the use of the biological signal sensor such as the speaker 41 and the microphone 42 for a long period of time.
The main board 52 is a board provided with a control circuit for controlling the speaker 41, the microphone 42, the microphone board 43, the wireless communication board 54, and the power supply 51, which are housed in the housing 2.
The wireless communication board 54 is a board provided with a control circuit, which receives an audio signal from an external device (not shown) through wireless communication such as bluetooth (registered trademark) to drive the speaker 41 and transmits information related to the biological signal transmitted from the microphone board 43 to the external device (not shown) through wireless communication. The wireless communication board 54 is disposed on the rear side of the speaker 41 and the power supply 51 with respect to the acoustic duct 3, and is housed in the rear portion 28. The wireless communication board 54 supplies power to an operation screen (not shown) by contactless power supply, and controls the biological signal sensors such as the speaker 41 and the microphone 42 in accordance with an operation input by a user via the operation screen (not shown). The power supply to the power supply 51 is not limited to the contactless power supply, and may be wired power supply via a USB connector (not shown) provided in the rear portion 28, for example.
Next, a headphone 1 according to embodiment 2 of the present invention will be described. Only the differences between embodiment 1 and embodiment 2 of the present invention will be described, and descriptions of the same points as those in embodiment 1 will be omitted.
Fig. 4 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 1 (base:Sub>A) showing the internal configuration of the headphone 1 according to embodiment 2 of the present invention. The earphone 1 is for the left ear, and includes an acoustic duct 3, a housing 2, a speaker 41, a microphone 42, an electrode 61, and a wireless communication board 54. The right ear headphone 1 has a shape symmetrical to the left ear headphone 1 in the X axis direction.
The housing 2 is a case that houses the speaker 41, the microphone 42, the microphone board 43, the power supply 51, the main board 52, the electroencephalogram analysis chip 53, the wireless communication board 54, and the electrode 61, and has a front portion 21, a coupling portion 26, and a rear portion 28. Anterior portion 21 is connected to posterior portion 28 by a junction 26.
The front portion 21 is a portion that supports the base end of the acoustic duct 3 and houses the speaker 41. The front portion 21 has an inclined surface 22 inclined with respect to the Z-axis direction (or the X-axis direction orthogonal thereto) on the outer surface, and has an eccentric truncated cone-shaped proximal end portion 23 formed so as to expand slightly from the proximal end of the acoustic catheter 3 to the-X side but expand slightly to the + X side via the inclined surface, and expanding in the XY plane.
Fig. 5 is a schematic sectional view B-B of fig. 1 (C) showing the front portion 21 of the ring body 24 detachably fitted to the base end portion 23 of the headphone 1 according to embodiment 2.
A plurality of electrodes 61 for obtaining a biological signal are arranged around the speaker 41 in the base end portion 23. Fig. 5 shows a state in which three electrodes 61 are arranged as an example.
The 1 st electrode 611 is disposed at a position where the proximal end portion 23 contacts the tragus 71, the 2 nd electrode 612, which is grounded, is disposed at a position where the proximal end portion 23 contacts the skin on the navicular fossa 73 side, and a pulse wave is obtained as an electric signal from the tragus 71. Further, a 3 rd electrode 613 for obtaining a biological signal related to an electroencephalogram is disposed above (in the Y axis direction) the proximal end portion 23. In the case where only the pulse wave or only the brain wave is obtained, a pair of electrodes 61 (the 1 st and 2 nd electrodes 611 and 612 or the 3 rd and 2 nd electrodes 613 and 612) is sufficient.
On the other hand, a ring-shaped ring body 24 is detachably fitted to the proximal end portion 23. The ring body 24 is made of a conductive elastic body, is divided into a plurality of conductive portions 62 by an insulating portion 63, and each conductive portion 62 transmits a biological signal obtained as an electric signal to the corresponding electrode 61. When the ring body 24 is conductive, it can contact a wide range of skin around the ear 7 to more reliably obtain a biological signal as an electric signal.
Further, the extension portion 65 may be extended above the ring body 24 (Y-axis direction) and may be worn at the forehead portion at the tip portion to obtain brain waves. Extensions 65 may be integrally formed with ring 24 or may be formed separately from ring 24 as a single extension 65, with ring 24 and extensions 65 being joined by a connector (not shown).
Note that, if the electrode 61 can surely detect the biological signal, the loop body 24 may not be fitted to the proximal end portion 23, and the electrode 61 may be disposed in direct contact with the skin, for example.
The electrode 61 is a conductor such as a metal, an alloy, graphite, a semiconductor, or a metal oxide having a plate-like or rod-like shape.
On the other hand, rear portion 28 houses microphone board 43, power supply 51, main board 52, electroencephalogram analysis chip 53, and wireless communication board 54 on the-Z side of coupling portion 26. The electroencephalogram analysis chip 53 is a circuit for analyzing electroencephalograms obtained through the electrodes 61.
The 1 st electrode 611 obtains, as an electric signal, a pulse wave that transmits, from the tragus 71, the vibration of the carotid artery wall synchronized with the heart beat through the conductive portion 62 of the ring body 24, and outputs from the wireless communication substrate 54 to an external device via the microphone substrate 43 and the main substrate 52.
On the other hand, brain waves, which are electrical signals from the brain, are obtained from the peripheral portion of the ear 7 as electrical signals from the 3 rd electrode 613 through the conductive portion 62. The obtained electric signal is transmitted to the electroencephalogram analysis chip 53 via the main board 52, analyzed as an electroencephalogram, and output from the wireless communication board 54 to an external device.
Next, a method of wearing the headphone 1 according to the embodiment of the present invention to the ear 7 will be described. Fig. 6 is a view showing a state where the headphone 1 is worn from the outside, and fig. 7 is a view showing a cross section including the outer ear hole 74 in a state where the headphone 1 is worn. The front portion 21 is placed in the auricle cavity 72 with the X end of the front portion 21 directed toward the navicular fossa 73 and the-X end of the base end portion 23 directed toward the tragus 71, and the sound guide tube 3 is inserted into the external ear canal 74 with the inclined surface 22 abutting against the inner surface of the auricle cavity 72.
From the proximal end of the acoustic catheter 3, the-X end of the proximal end 23 is supported by the back side of the tragus 71, and the X end of the front portion 21 is supported by the foramen auricle 72.
Since the rear portion 28 is disposed in close proximity to the tragus 71 and extends downward (-Y-axis direction), the large main board 52 and the wireless communication board 54 can be accommodated without being restricted by the sizes of the tragus 71 and the navicular fossa 73.
The rear portion 28 housing the wireless communication board 54 and the power supply 51 has a large mass and receives gravity downward in fig. 6, but the front portion 21 is supported by the tragus 71 and the ear hole cavity 72, and a moment that the headset 1 falls off from the ear 7 is not generated even if gravity is received.
As described above, the headphone 1 is stably worn on the ear 7, can be stably worn even when the wearer is vigorously active, and does not give a sense of discomfort to the wearer even when worn for a long time.
Next, a method of using the earphone 1 according to the embodiment of the present invention will be described.
A driver of a truck or a bus running over a long distance wears the headset 1 of the present invention, and starts a ride of the truck or the like after the headset 1 is activated. The headset 1 sequentially outputs biological signals such as pulse waves and brain waves obtained from the microphone 42 and the electrode 61 from the wireless communication board 54, and these biological signals are transmitted to a host computer (not shown) via a communication device such as a smartphone (not shown) disposed near the headset 1. The host computer (not shown) analyzes and records the received bio-signals, and determines the physical condition and mental state of the driver. When fatigue or abnormality of the driver (for example, a situation where the driver shakes upon sensing a danger) is detected, the host computer (not shown) transmits a signal to the wireless communication board 54 via the communication device (not shown), and outputs an audio signal for urging the driver to take a rest or notice from the speaker 41 via the main board 52.
In addition, the headset 1 of the present invention is also expected to be used for physical condition management of an operator who performs work or equipment operation alone, an operator in a severe work environment with high temperature and strong noise, and the like.
The present invention has been described above with reference to the embodiments, but the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes and modifications can be made in the above embodiments. It is apparent from the description of the claims that such modified or improved forms can be included in the technical scope of the present invention.
Industrial applicability of the invention
An earphone which can be stably worn on the ear and continuously obtain a biological signal even when the earphone is used for sports or worn for a long time, and which can provide an earphone which can obtain a biological signal without going through a complicated molding process of measuring and molding the shape of the outer ear of a subject for each subject. The use for continuously obtaining a biosignal is expected.
Description of reference numerals
1. Earphone set
2. Outer casing
3. Acoustic catheter
7. Ear
21. Front part
22. Inclined plane
23. Basal end part
24. Ring body
25. Ring protrusion
26. Connecting part
28. Rear part
29. Air hole
41. Loudspeaker
42. Microphone (CN)
43. Microphone substrate
51. Power supply
52. Main substrate
53. Chip for brain wave analysis
54. Wireless communication substrate
61. Electrode for electrochemical cell
611. 1 st electrode
612. 2 nd electrode
613. No. 3 electrode
62. Conductive part
63. Insulating part
64. Arc-shaped part
65. Extension part
71. Ear screen
72. Ear hole cavity
73. Fossa navicularis
74. External ear hole
Claims (13)
1. An earphone, comprising:
an acoustic duct extending in a uniaxial direction;
a speaker disposed on a proximal end side of the acoustic duct, and outputting sound in the uniaxial direction;
a microphone that is disposed on the back surface side of the speaker with respect to the acoustic duct, and that is spaced apart from the speaker, and that senses vibration;
a wireless communication board disposed on a back surface side of the microphone with respect to the acoustic duct; and
and a housing having a front portion, a coupling portion, and a rear portion, the front portion having an inclined surface that is coupled to a base end of the sound conduit and is inclined with respect to the uniaxial direction, and an annular base end portion that is expanded in a direction orthogonal to the uniaxial direction to house the speaker, the coupling portion being coupled to a rear surface side of the front portion with respect to the sound conduit and houses and supports the microphone, and the rear portion being coupled to a rear surface side of the coupling portion with respect to the sound conduit and houses the wireless communication board.
2. The headphone according to claim 1, further comprising:
and a plurality of electrodes disposed around the speaker and accommodated in a proximal end portion of the front portion.
3. The headphone according to claim 1, further comprising:
and a ring body detachably fitted to the outside of the proximal end portion.
4. The headphone according to claim 2, further comprising:
a ring body detachably fitted to the outside of the proximal end portion,
the ring body has the plurality of electrodes on an inner surface.
5. The earphone according to claim 3 or 4,
the ring body has a ring protrusion portion protruding outward in a convex shape.
6. The earphone according to any one of claims 3 to 5,
the ring body is an elastomer.
7. The earphone according to any one of claims 4 to 6,
the ring body has a plurality of conductive portions that are divided by insulating portions and are connected to the plurality of electrodes, respectively.
8. The earphone of claim 7,
one of the conductive portions has an arc-shaped portion protruding in an arc shape.
9. The earphone according to claim 7 or 8,
the other of the conductive portions has an elongated portion elongated therefrom.
10. The earphone according to any one of claims 1 to 9,
the inclined surface is inclined at an angle of 25 to 35 degrees with respect to the orthogonal direction and is formed in a concave shape.
11. The earphone according to any one of claims 1 to 10,
the front portion has a shape that is eccentric from a base end of the acoustic catheter to one side in a direction orthogonal to the uniaxial direction, when viewed from one side to the other side in the uniaxial direction,
the rear portion has a shape in which a direction orthogonal to the uniaxial direction is a long axis direction when viewed from one side of the uniaxial direction to the other side.
12. The earphone of any one of claims 1-11,
in the rear portion, a power supply that supplies power to the speaker, the microphone, a microphone substrate disposed on a rear surface side of the microphone with respect to the acoustic duct, and the wireless communication substrate is housed between the microphone substrate and the wireless communication substrate.
13. The earphone of any one of claims 1-12,
the rear portion has an operation screen on a rear surface side with respect to the acoustic duct.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/028608 WO2022024162A1 (en) | 2020-07-25 | 2020-07-25 | Earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115606195A true CN115606195A (en) | 2023-01-13 |
Family
ID=80035493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080099635.5A Pending CN115606195A (en) | 2020-07-25 | 2020-07-25 | Earphone set |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7361428B2 (en) |
| CN (1) | CN115606195A (en) |
| WO (1) | WO2022024162A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7320316B1 (en) * | 2022-10-21 | 2023-08-03 | 株式会社Move | open earbuds |
| JP7427171B1 (en) | 2023-07-14 | 2024-02-05 | 株式会社Move | open earphones |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006033150A (en) * | 2004-07-13 | 2006-02-02 | Mitsumi Electric Co Ltd | Headset device |
| US20090010461A1 (en) * | 2007-07-02 | 2009-01-08 | Gunnar Klinghult | Headset assembly for a portable mobile communications device |
| WO2009031238A1 (en) * | 2007-09-07 | 2009-03-12 | Pioneer Corporation | Earphone |
| JP6431569B1 (en) * | 2017-06-16 | 2018-11-28 | 株式会社メイ | earphone |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07115695A (en) * | 1993-10-15 | 1995-05-02 | Sony Corp | Earphone device |
| JP4435132B2 (en) * | 2006-10-02 | 2010-03-17 | ソニー株式会社 | Auricle wearing body, earphone device, acoustic tube and auricle wearing body |
| JP4778390B2 (en) * | 2006-10-03 | 2011-09-21 | ホシデン株式会社 | headset |
| JP5151305B2 (en) * | 2007-08-08 | 2013-02-27 | 株式会社Ｊｖｃケンウッド | headphone |
| GB0817091D0 (en) * | 2008-09-18 | 2008-10-29 | To Be First Ag | Cranial electrostimulation electrode unit |
| JP5481749B2 (en) * | 2010-04-12 | 2014-04-23 | 日本電信電話株式会社 | External ear canal insertion type electrode and method for producing external ear canal insertion type electrode |
| JP6100730B2 (en) * | 2014-04-22 | 2017-03-22 | 京セラ株式会社 | earphone |
| JP6478317B2 (en) * | 2014-12-24 | 2019-03-06 | 学校法人 東洋大学 | Earphone microphone with ear canal |
| JP6502123B2 (en) * | 2015-03-02 | 2019-04-17 | Ｎｓウエスト株式会社 | Biological information measuring device |
| GB2554632B (en) * | 2016-05-24 | 2021-02-24 | Inova Design Solution Ltd | Portable physiology monitor |
| JP6550607B1 (en) * | 2017-10-30 | 2019-07-31 | イアフレド株式会社 | Sound playback device |
| WO2021059360A1 (en) | 2019-09-24 | 2021-04-01 | 株式会社エクシヴィ | Animation production system |
-
2020
- 2020-07-25 WO PCT/JP2020/028608 patent/WO2022024162A1/en active Application Filing
- 2020-07-25 JP JP2022539786A patent/JP7361428B2/en active Active
- 2020-07-25 CN CN202080099635.5A patent/CN115606195A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006033150A (en) * | 2004-07-13 | 2006-02-02 | Mitsumi Electric Co Ltd | Headset device |
| US20090010461A1 (en) * | 2007-07-02 | 2009-01-08 | Gunnar Klinghult | Headset assembly for a portable mobile communications device |
| WO2009031238A1 (en) * | 2007-09-07 | 2009-03-12 | Pioneer Corporation | Earphone |
| JP6431569B1 (en) * | 2017-06-16 | 2018-11-28 | 株式会社メイ | earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7361428B2 (en) | 2023-10-16 |
| WO2022024162A1 (en) | 2022-02-03 |
| JPWO2022024162A1 (en) | 2022-02-03 |
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