CN113949764A - Anti-monitoring active noise reduction structure for mobile phone built-in gyroscope - Google Patents
Anti-monitoring active noise reduction structure for mobile phone built-in gyroscope Download PDFInfo
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- CN113949764A CN113949764A CN202111219366.4A CN202111219366A CN113949764A CN 113949764 A CN113949764 A CN 113949764A CN 202111219366 A CN202111219366 A CN 202111219366A CN 113949764 A CN113949764 A CN 113949764A
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- gyroscope
- permanent magnet
- guide rail
- noise reduction
- mobile phone
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- 230000009467 reduction Effects 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 title abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 7
- 239000011324 bead Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Gyroscopes (AREA)
Abstract
The invention relates to an anti-monitoring active noise reduction structure for a built-in gyroscope of a mobile phone, which comprises a shielding sheet covered on the gyroscope, wherein a combined permanent magnet is arranged at the center of the top of the shielding sheet, a rolling sliding bead is arranged at the lower side of the combined permanent magnet, a plurality of inclined guide rails which are uniformly distributed along the circumference are arranged below the rolling sliding bead, one ends of all the inclined guide rails, which face the center, are connected below the rolling sliding bead, a guide electromagnet used for attracting the combined permanent magnet to move towards one end of each inclined guide rail, which faces the outer end of each inclined guide rail, is arranged at the lower side of each inclined guide rail, and a vibrating sheet assembly is arranged at one end, which faces the outer end, of each inclined guide rail. The anti-monitoring active noise reduction structure for the built-in gyroscope of the mobile phone is reasonable in design, simple in structure and high in safety, and can be covered on the gyroscope to offset the human voice signal by sending out the anti-phase wave of the human voice signal, eliminate the interference of the human voice signal on the gyroscope and achieve the purpose of anti-monitoring.
Description
Technical Field
The invention relates to the technical field of mobile phones, in particular to an anti-monitoring active noise reduction structure for a built-in gyroscope of a mobile phone.
Background
The built-in gyroscope can be interfered by the human voice signal of the mobile phone to cause the gyroscope to vibrate, and the human voice signal can be successfully stolen to achieve the purpose of monitoring by acquiring the vibration signal of the gyroscope and reversely restoring and reconstructing the vibration signal into voice information and an audio signal through an algorithm. In the present case, there is no good way to cope with this.
Disclosure of Invention
In view of this, the present invention provides an anti-monitoring active noise reduction structure for a built-in gyroscope of a mobile phone, which is safe, reliable and strong in practicability, and can eliminate the interference of a human voice signal to the gyroscope to achieve the purpose of anti-monitoring.
The invention is realized by adopting the following scheme: the utility model provides a structure of making an uproar falls in anti-monitoring initiative for built-in gyroscope of cell-phone, is including the shielding piece of cover on the gyroscope, shielding piece top center is equipped with the combination permanent magnet, combination permanent magnet downside is equipped with the smooth pearl that rolls, and the smooth pearl below that rolls is equipped with a plurality of guide rails of putting to one side along the circumference equipartition, and all guide rails of putting to one side are connected in the smooth pearl below that rolls towards center one end, and every guide rail downside of putting to one side is equipped with and is used for attracting the combination permanent magnet to put the guide rail to one side and outwards the one end remove guide electromagnet of putting, the outside one end of putting the guide rail to one side is provided with the vibrating plate subassembly.
Further, the vibrating reed component comprises an annular bracket, a magnetic core is arranged in the annular bracket, the front end of the annular bracket is arranged at the outward end of the inclined guide rail, the front end of the annular bracket extends into the inclined guide rail and then is fixedly connected with the magnetic core, a coil is arranged on the periphery of the magnetic core, and annular iron is arranged on the periphery of the coil; the rear end of the annular bracket is provided with a vibrating diaphragm.
Furthermore, the rear end of the annular support is provided with a rear cover for compressing the edge of the vibrating diaphragm, a gasket is arranged on the outer side of the rear cover, and a support ring is arranged between the gasket and the rear cover.
Furthermore, the front end of the annular support is provided with a tone tuning paper, and a middle hole in the front end of the annular support is provided with an insulating sheet.
Furthermore, the combined permanent magnet comprises an S pole permanent magnet and an N pole permanent magnet which are in a right-angle triangle shape, and an iron sheet is clamped between the bevel edges of the S pole permanent magnet and the N pole permanent magnet.
Furthermore, an auxiliary sound insulation sheet covered on the gyroscope is arranged in the shielding sheet.
Compared with the prior art, the invention has the following beneficial effects: the anti-monitoring active noise reduction structure for the built-in gyroscope of the mobile phone is reasonable in design, safe, reliable and strong in practicability, and can be used for offsetting the human voice signal by sending the anti-phase wave of the human voice signal to cover the gyroscope, eliminating the interference of the human voice signal on the gyroscope and achieving the purpose of anti-monitoring.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
Drawings
FIG. 1 is a top view of an embodiment of the present invention;
FIG. 2 is a front elevation view of a partial construction of an embodiment of the present invention;
FIG. 3 is a schematic view of a diaphragm assembly configuration in an embodiment of the present invention;
FIG. 4 is a functional block diagram of an embodiment of the present invention;
the reference numbers in the figures illustrate: the gyroscope comprises a gyroscope 1, a shielding sheet 2, a combined permanent magnet 3, a rolling sliding bead 4, an inclined guide rail 5, a guide electromagnet 6, a vibrating sheet assembly 7, an annular support 8, a magnetic core 9, a coil 10, an annular iron 11, a vibrating diaphragm 12, a rear cover 13, a gasket 14, a support ring 15, tone tuning paper 16, an insulating sheet 17, an S pole permanent magnet 18, an N pole permanent magnet 19, an iron sheet 20, an auxiliary sound insulation sheet 21 and a support frame 22.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 to 4, an anti-monitoring active noise reduction structure for a built-in gyroscope of a mobile phone includes a shielding plate 2 covering on the gyroscope 1, a combined permanent magnet 3 is arranged at the center of the top of the shielding plate 2, a rolling sliding ball 4 is arranged at the lower side of the combined permanent magnet 3, a plurality of inclined guide rails 5 uniformly distributed along the circumference are arranged below the rolling sliding ball 4, one end of each inclined guide rail facing the center is connected below the rolling sliding ball, a guide electromagnet 6 for attracting the combined permanent magnet to move towards the outward end of each inclined guide rail is arranged at the lower side of each inclined guide rail 5, and a vibrating piece assembly 7 is arranged at the outward end of each inclined guide rail; the vibrating piece assembly, the guiding electromagnet, the sound receiving microphone and the secondary microphone of the mobile phone are connected with the active noise reduction module, the sound receiving microphone, the secondary microphone and the active noise reduction module belong to the prior art of the mobile phone, and the structure and the working principle of the mobile phone are not specifically explained; the whole active noise reduction structure covers the gyroscope, the voice receiving microphone acquires voice data in the mobile phone, the active noise reduction module analyzes the intensity of a voice signal and determines the direction of a sound source, the guide electromagnets in corresponding directions are electrified to attract the combined permanent magnets, the combined permanent magnets slide into the inclined guide rails in corresponding directions and approach towards the vibrating reed assemblies, the active noise reduction module processes the voice signal to calculate the reverse phase wave of the voice signal, the vibrating reed assemblies in corresponding directions obtain electric signals and start to vibrate under the action of the magnetic field of the combined permanent magnets to send the reverse phase wave of the voice signal, the voice signal is counteracted, the interference of the voice signal on the gyroscope is eliminated, and the purpose of anti-monitoring is achieved.
In this embodiment, the vibrating reed assembly includes an annular support 8, a magnetic core 9 is disposed in the annular support, the front end of the annular support is disposed at the outward end of the inclined guide rail, and is fixedly connected to the magnetic core after extending into the annular support, a coil 10 is disposed on the periphery of the magnetic core, and an annular iron 11 is disposed on the periphery of the coil; the rear end of the annular bracket is provided with a vibrating diaphragm 12.
In this embodiment, the rear end of the annular support 8 is provided with a rear cover 13 for pressing the edge of the diaphragm 12, a gasket 14 is arranged on the outer side of the rear cover, and a support ring 15 is arranged between the gasket and the rear cover.
In the embodiment, the front end of the annular support 8 is provided with a sound mixing paper 16, and the hole in the front end of the annular support 8 is provided with an insulating sheet 17.
In this embodiment, the four inclined guide rails are distributed in a cross shape; the combined permanent magnet comprises an S pole permanent magnet 18 and an N pole permanent magnet 19 which are in a right-angle triangle shape, and an iron sheet 20 is clamped between the bevel edges of the S pole permanent magnet and the N pole permanent magnet.
In this embodiment, the shielding sheet is provided with an auxiliary sound insulation sheet 21 covering the gyroscope, so as to further eliminate the interference of the human voice signal to the gyroscope.
The working method of the anti-monitoring active noise reduction structure for the built-in gyroscope of the mobile phone comprises the following steps:
(1) the voice receiving microphone acquires voice data in the mobile phone, and the active noise reduction module analyzes the strength of the voice signal and determines the direction of a sound source; (2) the guiding electromagnets in the corresponding directions are electrified to attract the combined permanent magnets, and the combined permanent magnets slide into the inclined guide rails in the corresponding directions and approach towards the vibrating piece assemblies in the corresponding directions;
(3) the active noise reduction module processes the human voice signal to calculate out the reverse phase wave of the human voice signal, the coil of the vibrating piece component corresponding to the direction obtains an electric signal, and under the action of the magnetic field of the combined permanent magnet, the vibrating diaphragm starts to vibrate to send out the reverse phase wave of the human voice signal to offset the human voice signal, so that the interference of the human voice signal on the gyroscope is eliminated, and the purpose of reverse monitoring is achieved.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a structure of making an uproar falls in anti-listening initiative that is used for built-in gyroscope of cell-phone which characterized in that: including the shielding piece of cover on the gyroscope, shielding piece top center is equipped with the combination permanent magnet, combination permanent magnet downside is equipped with the roll gliding pearl, and roll gliding pearl below is equipped with a plurality of guide rails of putting to one side along the circumference equipartition, and all put the guide rail to one side and connect in roll gliding pearl below towards center one end, and every is put the guide rail downside to one side and is equipped with the guide electromagnet that is used for attracting the combination permanent magnet to put the outside one end of guide rail to one side and remove, it is provided with vibrating plate subassembly to put the outside one end of guide rail to one side.
2. The anti-snooping active noise reduction structure for a built-in gyroscope of a mobile phone according to claim 1, wherein: the vibrating reed component comprises an annular bracket, a magnetic core is arranged in the annular bracket, the front end of the annular bracket is arranged at the outward end of the inclined guide rail, the front end of the annular bracket extends into the inclined guide rail and then is fixedly connected with the magnetic core, a coil is arranged on the periphery of the magnetic core, and annular iron is arranged on the periphery of the coil; the rear end of the annular bracket is provided with a vibrating diaphragm.
3. The anti-snooping active noise reduction structure for a built-in gyroscope of a mobile phone according to claim 2, wherein: the rear end of the annular support is provided with a rear cover for compressing the edge of the vibrating diaphragm, the outer side of the rear cover is provided with a gasket, and a support ring is arranged between the gasket and the rear cover.
4. The anti-snooping active noise reduction structure for a built-in gyroscope of a mobile phone according to claim 2, wherein: and the front end of the annular support is provided with a tone tuning paper, and a middle hole in the front end of the annular support is provided with an insulating sheet.
5. The anti-snooping active noise reduction structure for a built-in gyroscope of a mobile phone according to claim 1, wherein: the combined permanent magnet comprises an S-pole permanent magnet and an N-pole permanent magnet which are in right-angle triangle shapes, and an iron sheet is clamped between the bevel edges of the S-pole permanent magnet and the N-pole permanent magnet.
6. The anti-snooping active noise reduction structure for a built-in gyroscope of a mobile phone according to claim 1, wherein: and an auxiliary sound insulation sheet covered on the gyroscope is arranged in the shielding sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219366.4A CN113949764A (en) | 2021-10-20 | 2021-10-20 | Anti-monitoring active noise reduction structure for mobile phone built-in gyroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219366.4A CN113949764A (en) | 2021-10-20 | 2021-10-20 | Anti-monitoring active noise reduction structure for mobile phone built-in gyroscope |
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| CN113949764A true CN113949764A (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111219366.4A Pending CN113949764A (en) | 2021-10-20 | 2021-10-20 | Anti-monitoring active noise reduction structure for mobile phone built-in gyroscope |
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2021
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| US20160057541A1 (en) * | 2014-08-19 | 2016-02-25 | Apple Inc. | Moving coil motor arrangement with a sound outlet for reducing magnetic particle ingress in transducers |
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