WO2023082745A1

WO2023082745A1 - Voiceprint recognition and voice call noise-cancelling device

Info

Publication number: WO2023082745A1
Application number: PCT/CN2022/112700
Authority: WO
Inventors: 朱达云
Original assignee: 朱达云
Priority date: 2021-11-10
Filing date: 2022-08-16
Publication date: 2023-05-19
Also published as: CN114025270A

Abstract

The present invention relates to the technical field of voiceprint recognition and voice call devices, and in particular to a voiceprint recognition and voice call noise-cancelling device, comprising a shell, a first elastic conduction piece, an elastic pressing piece, and a bone conduction microphone. A mounting cavity is formed in the shell, a mounting hole is further formed on the shell, and the mounting hole is communicated with the mounting cavity. The first elastic conduction piece is arranged in the mounting hole and seals the mounting hole. The elastic pressing piece is fixedly arranged in the mounting cavity and correspondingly arranged behind the first elastic conduction piece. The front end of the bone conduction microphone is fixed onto the first elastic conduction piece, the rear end of the bone conduction microphone is fixed onto the elastic pressing piece, the front and rear ends of the bone conduction microphone are suspended in the mounting cavity respectively by means of the first elastic conduction piece and the elastic pressing piece and are elastically connected to the shell, and the force of the elastic pressing piece acting on the bone conduction microphone is directed to the first elastic conduction piece, so that the bone conduction microphone is tightly attached to a wearing position by means of the first elastic conduction piece and is suitable for wearers of various head shapes.

Description

Voiceprint recognition and voice call anti-noise device

technical field

The invention belongs to the technical field of voiceprint recognition and voice communication devices, in particular to a voiceprint recognition and voice communication anti-noise device.

Background technique

Traditional microphones use air conduction and are open. Although they can obtain good sound quality, the biggest disadvantage is that they cannot isolate the external background sound source, and cannot filter the ambient noise when talking in a noisy environment, causing inconvenience to users. Compared with the microphone that uses air conduction for detection, the bone conduction microphone has better anti-noise ability because it is attached to the user's skull and detects the vibration of the skull when the user speaks through bone conduction.

In existing bone conduction products, especially bone conduction earphones, the bone conduction microphone is rigidly connected or single-sidedly softly connected to the shell. The purely rigid connection of the bone conduction microphone will cause the bone conduction microphone to not fit in the best wearing position, resulting in incomplete sound pickup. If the bone conduction microphone adopts a one-way soft connection, the bone conduction microphone is easily retracted by external force. Since different wearers have different bumps at the tragus (the wearing position of the bone conduction microphone), it cannot meet the needs of users with different head shapes to wear and achieve the ideal sound pickup effect. When the wearing position is more protruding, the bone conduction microphone The force will cause severe retraction, resulting in distortion of sound pickup and a decrease in wearing comfort. When the wearing position is relatively concave, the bone conduction microphone cannot be fully fitted, resulting in incomplete sound pickup.

Contents of the invention

The purpose of the present invention is to provide a voiceprint recognition and voice call anti-noise device, which aims to solve the problem of rigid connection or single-sided soft connection between the bone conduction microphone and the shell in the prior art, so it cannot meet the needs of users with different head shapes. The technical problem of achieving the ideal pickup effect.

In order to achieve the above purpose, an embodiment of the present invention provides a voiceprint recognition and voice call anti-noise device, including:

A casing, an installation cavity is formed in the casing, and an installation hole is also provided on the casing, and the installation hole communicates with the installation cavity;

The voiceprint recognition and voice call anti-noise device also includes:

a first elastic conduction element, the first elastic conduction element is arranged in the installation hole and seals the installation hole;

an elastic pressing part, the elastic pressing part is fixed in the installation cavity and corresponds to the rear of the first elastic conducting part; and

A bone conduction microphone, the front end of the bone conduction microphone is fixed on the first elastic conductive member, and the rear end is fixed on the elastic pressing member, the force of the elastic pressing member acting on the bone conduction microphone Pointing to the first elastic conductive member; the front and rear ends of the bone conduction microphone are respectively suspended in the installation cavity through the first elastic conductive member and the elastic pressing member and elastically connected to the housing.

Optionally, the voiceprint recognition and voice communication anti-noise device further includes a sealing cover, the sealing cover is arranged in the installation cavity, and has an inner wall surface, and the inner wall surface and the housing enclose a The airtight inner cavity, the elastic pressing piece and the bone conduction microphone are both accommodated in the inner cavity.

Optionally, the elastic pressing member has several elastic pressing arms, and the elastic pressing arms are in an X-shaped structure, a strip structure or a polygonal structure; the elastic pressing arms extend to the rear end of the bone conduction microphone, the The rear end of the bone conduction microphone is fixed on the front side of the elastic pressing arm.

Optionally, the elastic pressing member also has an elastic edge, and the elastic pressing arm of the X-shaped structure is fixed on the inner periphery of the elastic edge; the elastic pressing arm of the X-shaped structure has an intersection, and the bone The rear end of the conduction microphone is fixed on the front side of the intersection point.

Optionally, the elastic pressing member is provided with a wire hole or a wire escape position, and a connection wire is connected to the bone conduction microphone, and the connection wire is led out through the wire hole or the wire escape position.

Optionally, the voiceprint recognition and voice call anti-noise device further includes a support member, the elastic pressing member is fixed in the housing through the support member, and the support member is a ring member or a boss member.

Optionally, the periphery of the first elastic conducting member is mated and connected to the edge of the mounting hole, the first elastic conducting member has a first front end surface and a rear end surface, and the housing has a second front end surface The first front face protrudes from the second front face; the rear end face is provided with an installation slot for the bone conduction microphone to be installed.

Optionally, the voiceprint recognition and voice call anti-noise device further includes a bone conduction speaker, the bone conduction speaker is accommodated in the installation cavity and is arranged on the front of the casing together with the bone conduction microphone side.

Optionally, a partition is arranged in the installation cavity, and the partition divides the installation cavity into a second closed cavity and a third closed cavity, and the first elastic conductive member and the bone conduction microphone Both are accommodated in the second airtight chamber, and the bone conduction speaker is accommodated in the third airtight chamber.

Optionally, the voiceprint recognition and voice call anti-noise device further includes a second elastic conductive member, the second elastic conductive member is arranged on the front side of the housing, the bone conduction speaker has a conductive part, The conducting part is fixed on the second elastic conducting part and is elastically connected to the housing through the second elastic conducting part.

The above-mentioned one or more technical solutions in the voiceprint recognition and voice call anti-noise device provided by the embodiment of the present invention have at least one of the following technical effects:

1. The voiceprint recognition and voice call anti-noise device is provided with an elastic pressing member, the front end of the bone conduction microphone is fixed on the first elastic conducting member, and its rear end is fixed on the elastic pressing member. The force of the elastic pressure member acting on the bone conduction microphone is directed to the first elastic conduction member, so that the bone conduction microphone is closely attached to the wearing position through the first elastic conduction member, and can maintain an elastic fit The wearing position is suitable for wearers of various head shapes and can achieve consistent and excellent sound pickup effects;

2. The front and rear ends of the bone conduction microphone of the voiceprint recognition and voice call anti-noise device are respectively suspended in the installation cavity through the first elastic conductive member and the elastic pressing member and elastically connected to the The shell isolates vibration from the shell from being transmitted to the bone conduction microphone through the first elastic conductive member and the elastic pressing member, so as to achieve noise reduction. And the bone conduction microphone is suspended in the installation cavity, avoiding the interference of environmental noise;

3. The bone conduction microphone does not receive wind noise interference in applications such as strong winds, driving, and cycling, and the bone conduction sound pickup is more accurate and complete;

4. Compared with the bone conduction microphone which is rigidly connected to the shell in the prior art, the present invention is more suitable for use in combination with the bone conduction speaker, which can effectively reduce the mutual vibration and sound wave interference. In addition, by improving the anti-noise ability, the bone conduction microphone has higher accuracy for bone voiceprint extraction, which makes up for some defects in the application of voiceprint recognition (such as the interference of environmental noise on voiceprint recognition; for example, it is affected by the shape of the wearer's head and lead to defects such as incomplete voiceprint extraction).

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

FIG. 1 is a schematic structural diagram of a device for voiceprint recognition and voice call anti-noise provided by Embodiment 1 of the present invention.

FIG. 2 is another structural schematic diagram of the device for voiceprint recognition and voice communication anti-noise provided in Embodiment 1 of the present invention.

FIG. 3 is a schematic structural diagram of a device for voiceprint recognition and voice call anti-noise provided by Embodiment 2 of the present invention.

FIG. 4 is another structural schematic diagram of the device for voiceprint recognition and voice communication anti-noise provided by Embodiment 2 of the present invention.

FIG. 5 is a schematic structural diagram of a device for voiceprint recognition and voice communication anti-noise provided by Embodiment 3 of the present invention.

FIG. 6 is a schematic structural diagram of a device for voiceprint recognition and voice call anti-noise provided by Embodiment 4 of the present invention.

FIG. 7 is a schematic structural diagram of a device for voiceprint recognition and voice call anti-noise provided by Embodiment 5 of the present invention.

FIG. 8 is a schematic diagram of wearing the voiceprint recognition and anti-noise device for voice calls provided by Embodiment 5 of the present invention.

FIG. 9 is a schematic structural diagram of a device for voiceprint recognition and voice call anti-noise provided by Embodiment 6 of the present invention.

FIG. 10 is another structural schematic diagram of the device for voiceprint recognition and voice call anti-noise provided by Embodiment 6 of the present invention.

FIG. 11 is a schematic structural diagram of a device for voiceprint recognition and voice call anti-noise provided by Embodiment 7 of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the embodiments of the present invention and should not be construed as limitations of the present invention.

In the description of the embodiments of the present invention, it should be understood that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship is Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the embodiments of the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the embodiments of the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", and "fixation" should be understood in a broad sense, for example, it can be fixed connection or It is a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.

Example 1

In this embodiment, as shown in Figures 1-2, a voiceprint recognition and voice communication anti-noise device is provided, which includes a housing 1, a first elastic conductive member 2, an elastic pressing member 3 and a bone conduction microphone4. An installation cavity 11 is formed in the housing 1, and the installation cavity 11 is preferably airtight. The casing 1 is also provided with an installation hole 12 , and the installation hole 12 communicates with the installation cavity 11 . The first elastic conductor 2 is disposed in the installation hole 12 and seals the installation hole 12 . The elastic pressing member 3 is fixed in the installation cavity 11 and corresponds to the rear of the first elastic conducting member 2 . The front end of the bone conduction microphone 4 is fixed on the first elastic conductive member 2, and its rear end is fixed on the elastic pressing member 3. The force of the elastic pressing member 3 acting on the bone conduction microphone 4 is directed to the first elastic conducting member 2, so that The bone conduction microphone 4 is closely attached to the wearing position through the first elastic conductive member 2, so that the wearing position can be maintained elastically, adapted to wearers of various head shapes, and can achieve consistent and excellent sound pickup effects.

The main function of the elastic pressing member 3 is to support the bone conduction microphone 4 and the first elastic conducting member 2 to shrink within a certain range when the first elastic conducting member 2 is squeezed and shrunk by external force, and when the external force disappears Finally, the elastic pressing member 3 rebounds to ensure the bonding stability of the first elastic conducting member 2 . Its structure or shape can be sheet-like, hollow-out sheet-like, strip-like, etc., but it is not limited to the above-mentioned structures or shapes.

The front and rear ends of the bone conduction microphone 4 of the voiceprint recognition and voice communication anti-noise device are respectively suspended in the installation cavity 11 through the first elastic conductive member 2 and the elastic pressing member 3 and are elastically connected to the housing 1. The elastic conductive member 2 and the elastic pressing member 3 isolate the vibration from the housing 1 to the bone conduction microphone 4 to achieve noise reduction. The material of the first elastic conducting member 2 and the elastic pressing member 3 can be elastic polymer material, such as silica gel, but not limited to silica gel. Moreover, the bone conduction microphone 4 is suspended in the installation cavity 11 to avoid the interference of environmental noise. The bone conduction microphone 4 does not receive wind noise interference in applications such as strong winds, driving, and cycling. The bone conduction sound pickup is more accurate and complete, and it is suitable for use in combination with bone conduction speakers, which can effectively reduce the mutual vibration and sound wave interference. . In addition, by improving the anti-noise ability, the bone conduction microphone 4 has a higher accuracy for bone voiceprint extraction, which makes up for some defects in the application of voiceprint recognition (such as the interference of environmental noise on voiceprint recognition; for example, it is affected by the wearer's head shape) and lead to defects such as incomplete voiceprint extraction).

The voiceprint recognition and voice call anti-noise device can be widely used in earphones, hearing aids, mobile phones, voice recognition and voiceprint recognition headsets.

The elastic pressing member 3 has an elastic pressing arm 32, the elastic pressing arm is an X-shaped structure, the elastic pressing arm 32 extends to the rear end of the bone conduction microphone 4, and the rear end of the bone conduction microphone 4 is fixed on the front side of the elastic pressing arm 32. Specifically, the X-shaped elastic pressing arm 32 has a cross point 33, the rear end of the bone conduction microphone 4 is fixed on the front side of the cross point 33, and the cross point 33 has the best stability and structural strength. It should be understood that the size and hardness of the elastic pressing arm 32 can be adjusted according to the size of the product and the hardness of the first elastic conducting member 2 . Furthermore, the material of the elastic pressing arm 32 can be metal, plastic or a combination of the two materials; its structure can also be a polygonal structure, which can be a triangle or a quadrangle, but it is not limited to the above shapes.

The elastic pressing member 3 is provided with a wire hole 34 , and the bone conduction microphone 4 is connected (generally referred to as an electrical connection) with a connecting wire 5 , and the connecting wire 5 passes through the wire hole 34 and is drawn out. It should be understood that the elastic pressing member 3 may also be provided with a wire escape position (such as a concave position), and the connection wire 5 may also be drawn out through the wire escape position. Specifically, the connecting wire 5 may be a flexible electronic wire or a PFC cable, which is used for connecting the external control part to the bone conduction microphone 4 or the bone conduction speaker.

The voiceprint recognition and anti-noise device for voice calls also includes a support member 6 through which the elastic pressing member 3 is fixed in the casing 1 . The main function of the supporting member 6 is to support the elastic pressing member 3 so that the elastic pressing member 3 is suspended in the installation cavity 11 without being acted or affected by external force. Specifically, the supporting member 6 is preferably a ring member, and the elastic pressing member also has an elastic edge 31, the elastic pressing arm 32 is fixed on the inner circumference of the elastic edge 31, and the elastic edge 31 is fixed on the top surface of the supporting member 6, and the ring The combination of the shaped elastic edge 31 and the annular support member 6 further improves the supporting effect.

Further, the support member 6 may be elastic, which can further isolate vibration and reduce noise.

The peripheral edge of the first elastic conductive member 2 is mated and connected to the edge of the mounting hole 12 to achieve airtightness. The first elastic conduction member 2 has a first front end surface 21 and a rear end surface 22, the housing 1 has a second front end surface 13, and the first front end surface 21 protrudes from the second front end surface 13, so that the first elastic conduction member 2 contact with the human body. The rear end surface 22 is provided with an installation slot 23 for installing the bone conduction microphone 4, which is convenient for assembly and more stable for fixing. The specific setting method may be that the first elastic conductive member 2 is set in a convex shape, or the first front end surface 21 is higher than the second front end surface 13 .

The casing 1 includes a front cover 14 and a rear cover 15 , the front cover 14 and the rear cover 15 are closed to form an installation cavity 11 , which makes assembly easier. The installation hole 12 is defined on the front cover 14 .

Example 2

The difference between this embodiment and Embodiment 1 is that: as shown in Figures 3-4, the voiceprint recognition and voice communication anti-noise device also includes a sealing cover 7, and the sealing cover 7 is arranged in the installation cavity 11. It has an inner wall surface 71 , and the inner wall surface 71 and the housing 1 enclose a closed inner cavity 72 , and the elastic pressing member 3 and the bone conduction microphone 4 are both contained in the inner cavity 72 . The main function of the sealing cover 7 is to further seal the bone conduction microphone 4 and isolate sound waves.

The rest of this embodiment is the same as that of Embodiment 1, and the features not explained in this embodiment are all explained in Embodiment 1, and will not be repeated here.

Example 3

The difference between this embodiment and Embodiment 2 is that, as shown in FIG. 5 , the voiceprint recognition and voice communication anti-noise device further includes a bone conduction speaker 8, and the bone conduction speaker 8 is accommodated in the installation cavity 11 and It is provided on the front side of the casing 1 together with the bone conduction microphone 4 . The bone conduction speaker 8 provides an audio playback function to further expand the functions.

The rest of this embodiment is the same as that of Embodiment 2, and the features not explained in this embodiment are all explained in Embodiment 2, and will not be repeated here.

Example 4

The difference between this embodiment and Embodiment 1 is that: as shown in Figure 6, the voiceprint recognition and voice communication anti-noise device also includes a bone conduction speaker 8, the bone conduction speaker 8 is accommodated in the installation cavity 11 and It is provided on the front side of the casing 1 together with the bone conduction microphone 4 .

A partition 16 is arranged inside the installation cavity 11, and the partition 16 divides the installation cavity 11 into a second airtight chamber 111 and a third airtight chamber 112, and the first elastic conductive member 2 and the bone conduction microphone 4 are accommodated in the second Two airtight chambers 111 , the bone conduction speaker 8 is housed in the third airtight chamber 112 , and the partition 16 reduces mutual interference between the bone conduction microphone 4 and the bone conduction speaker 8 .

Example 5

The difference between this embodiment and Embodiment 3 is that: as shown in Figure 7, a partition 16 is provided in the installation cavity 11, and the partition 16 separates the installation cavity 11 into a second airtight chamber 111 and a third airtight chamber 111. The cavity 112 , the first elastic conductive member 2 and the bone conduction microphone 4 are all accommodated in the second airtight cavity 111 , and the bone conduction speaker 8 is accommodated in the third airtight cavity 112 . The partition 16 reduces the mutual interference between the bone conduction microphone 4 and the bone conduction speaker 8 .

The voiceprint recognition and anti-noise device for voice communication also includes a second elastic conductive member 9, which is arranged on the front side of the housing 1, and the bone conduction speaker 8 has a conductive part 81, which generally refers to The conductive sheet, the conductive part 81 is fixed on the second elastic conductive member 9 and elastically connected to the housing 1 through the second elastic conductive member 9 . The second elastic conductive member 9 can weaken the vibration that the bone conduction speaker 8 acts on the casing 1 .

As shown in FIG. 8 , after being worn, the first elastic conducting member 2 and the second elastic conducting member 9 can be well fitted to the human ear.

The rest of this embodiment is the same as that of Embodiment 3, and the features not explained in this embodiment are all explained in Embodiment 3, and will not be repeated here.

Example 6

The difference between this embodiment and Embodiment 1 is that: as shown in Figures 9-10, the elastic pressing arm is a strip structure, the support member 6 is a boss, and one end of the elastic pressing arm 32 of the strip structure is fixed on the support member 6, and the other end extends to the rear end of the bone conduction microphone 4. The single elastic pressing arm 32 can also play the role of elastic support, requiring less manufacturing materials.

In some other embodiments, the number of elastic protruding arms of the strip structure is not limited to one, but may be more than one.

Example 7

The difference between this embodiment and Embodiment 1 is that, as shown in FIG. 11 , the installation cavity 11 is open.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims

Voiceprint recognition and voice call anti-noise device, including:

A casing, an installation cavity is formed in the casing, and an installation hole is also provided on the casing, and the installation hole is connected to the installation cavity;

It is characterized in that it also includes:

a first elastic conduction element, the first elastic conduction element is arranged in the installation hole and seals the installation hole;

an elastic pressing part, the elastic pressing part is fixed in the installation cavity and corresponds to the rear of the first elastic conducting part; and

A bone conduction microphone, the front end of the bone conduction microphone is fixed on the first elastic conductive member, and the rear end is fixed on the elastic pressing member, the force of the elastic pressing member acting on the bone conduction microphone Pointing to the first elastic conductive member; the front and rear ends of the bone conduction microphone are respectively suspended in the installation cavity through the first elastic conductive member and the elastic pressing member and elastically connected to the housing.
The voiceprint recognition and voice communication anti-noise device according to claim 1, further comprising a sealing cover, the sealing cover is arranged in the installation cavity, and has an inner wall surface, the inner wall surface and The casing surrounds a closed inner cavity, and the elastic pressing member and the bone conduction microphone are accommodated in the inner cavity.
The voiceprint recognition and voice call anti-noise device according to claim 1, wherein the elastic pressing member has several elastic pressing arms, and the elastic pressing arms are X-shaped structures, strip structures or polygonal structures; The elastic compression arm extends to the rear end of the bone conduction microphone, and the rear end of the bone conduction microphone is fixed on the front side of the elastic compression arm.
The voiceprint recognition and voice call anti-noise device according to claim 3, wherein the elastic pressing member also has an elastic edge, and the elastic pressing arm of the X-shaped structure is fixed on the inner periphery of the elastic edge; The elastic compression arm of the X-shaped structure has a cross point, and the rear end of the bone conduction microphone is fixed on the front side of the cross point.
The voiceprint recognition and voice communication anti-noise device according to claim 1, characterized in that, the elastic pressing piece is provided with a wire hole or a wire escape position, and a connection wire is connected to the bone conduction microphone, and the The connecting wires are led out through the wire holes or the wire escape positions.
The voiceprint recognition and voice call anti-noise device according to claim 1, further comprising a support member, the elastic pressing member is fixed in the housing through the support member, and the support member is a round ring or boss.
The voiceprint recognition and voice call anti-noise device according to claim 1, wherein the peripheral edge of the first elastic conductive member is matched and connected to the edge of the installation hole, and the first elastic conductive member has a first elastic conductive member. A front end surface and a rear end surface, the housing has a second front end surface, the first front end surface protrudes from the second front end surface; the rear end surface is provided with a mounting for the bone conduction microphone slot.
The voiceprint recognition and voice communication anti-noise device according to any one of claims 1-7, further comprising a bone conduction speaker, the bone conduction speaker is accommodated in the installation cavity and communicates with the The bone conduction microphone is also arranged on the front side of the casing.
The voiceprint recognition and voice communication anti-noise device according to claim 8, wherein a partition is arranged in the installation cavity, and the partition divides the installation cavity into a second airtight cavity and a first closed cavity. Three airtight chambers, the first elastic conduction member and the bone conduction microphone are accommodated in the second airtight chamber, and the bone conduction speaker is accommodated in the third airtight chamber.
The voiceprint recognition and anti-noise device for voice calls according to claim 8, further comprising a second elastic conductive member, the second elastic conductive member is arranged on the front side of the housing, and the bone The conduction loudspeaker has a conduction part, and the conduction part is fixed on the second elastic conduction part and elastically connected to the housing through the second elastic conduction part.