CN109393664A - A kind of bracelet and noise-reduction method with decrease of noise functions - Google Patents
A kind of bracelet and noise-reduction method with decrease of noise functions Download PDFInfo
- Publication number
- CN109393664A CN109393664A CN201811319286.4A CN201811319286A CN109393664A CN 109393664 A CN109393664 A CN 109393664A CN 201811319286 A CN201811319286 A CN 201811319286A CN 109393664 A CN109393664 A CN 109393664A
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- Prior art keywords
- signal
- noise
- ultrasonic
- acoustic information
- bracelet
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/0007—Bracelets specially adapted for other functions or with means for attaching other articles
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- Percussion Or Vibration Massage (AREA)
Abstract
The invention discloses a kind of bracelet and noise-reduction method with decrease of noise functions, which includes signal detector, for detecting to the noise signal in ambient enviroment, obtains detection signal；Signal processor obtains acoustic information corresponding with the noise signal, and generate corresponding control instruction according to acoustic information when the acoustic information meets preset condition for handling the detection signal；Ultrasonic transmitter, for the ultrasonic signal according to control instruction transmitting corresponding frequencies, to inhibit to noise signal.Bracelet in the application can be when detecting that the corresponding acoustic information of the noise signal in ambient enviroment meets preset condition, generate the ultrasonic signal that control instruction control ultrasonic transmitter issues corresponding frequencies, and then a degree of inhibition is carried out to the noise signal in environment, bracelet in the application can reduce the noise in user surrounding environment in wearing and use process, be conducive to the quality of life for promoting user.
Description
Technical field
The present embodiments relate to noise reducing apparatus technical fields, more particularly to a kind of bracelet and drop with decrease of noise functions
Method for de-noising.
Background technique
In people's daily life everywhere there is noise, noise generates many harm to human body, can make auditory system
Variation is generated with non-auditory system, will affect human health when serious.Currently, interior is made an uproar for office worker or student race
Sound will affect its work, learning efficiency and sleep quality, or even can cause anxiety disorder.Therefore, how to provide one kind can reduce
Noise in user's living environment, the noise reducing apparatus for promoting user's quality of life become those skilled in the art and need what is solved to ask
Topic.
Summary of the invention
The purpose of the embodiment of the present invention is that provide a kind of bracelet and noise-reduction method with decrease of noise functions, since bracelet can be with
Body-worn is worn in daily life and be can reduce in user surrounding environment using the bracelet in the application in human body
Noise is conducive to the quality of life for promoting user.
In order to solve the above technical problems, the embodiment of the invention provides a kind of bracelets with decrease of noise functions, comprising:
Signal detector obtains detection signal for detecting to the noise signal in ambient enviroment；
Signal processor obtains acoustics letter corresponding with the noise signal for handling the detection signal
Breath, and corresponding control instruction is generated according to the acoustic information when the acoustic information meets preset condition；
Ultrasonic transmitter, for the ultrasonic signal according to control instruction transmitting corresponding frequencies, so as to described
Noise signal is inhibited.
Optionally, the acoustic information includes intensity of sound；
The signal processor obtains corresponding with the noise signal specifically for handling the detection signal
Intensity of sound, and generate corresponding control according to the intensity of sound when the intensity of sound is within the scope of preset strength and refer to
It enables.
It optionally, further include display；The signal processor is also used to the acoustic information being sent to the display
Device；
The display, for showing the acoustic information.
It optionally, further include setup module, for receiving the parameter information of user's input, and according to the parameter information pair
The preset strength range is configured.
Optionally, the signal strength of the ultrasonic signal of the ultrasonic transmitter transmitting is not more than 0.1w/cm2。
Optionally, the signal detector is ultrasonic receiver.
Optionally, the ultrasonic transmitter includes multiple ultrasonic transmitting elements, and the ultrasonic receiver includes more
A ultrasonic wave receiving unit, each ultrasonic transmitting element are arranged in a one-to-one correspondence with each ultrasonic wave receiving unit.
Optionally, the corresponding direction of the angle of departure of the ultrasonic transmitting element is different, and each ultrasonic wave receives single
The corresponding direction of the acceptance angle direction corresponding with the angle of departure of corresponding ultrasonic transmitting element of member is consistent.
Optionally, each ultrasonic wave receiving unit is respectively used to detect the noise signal on respective direction,
And the detection signal respectively obtained is sent to the signal processor；
The signal processor obtains and each detection specifically for handling each detection signal
The corresponding acoustic information of signal, and generate corresponding control instruction according to the acoustic information for meeting the preset condition, and by institute
State the ultrasonic transmitting element that control instruction is sent in respective direction.
The embodiment of the present invention provides a kind of noise-reduction method of bracelet with decrease of noise functions accordingly, comprising:
Noise signal in ambient enviroment is detected, detection signal is obtained；
The detection signal is handled, acoustic information corresponding with the noise signal is obtained；
Judge whether the acoustic information meets preset condition, if so, generating corresponding control according to the acoustic information
System instruction, and the ultrasonic signal according to control instruction control ultrasonic transmitter transmitting corresponding frequencies, so as to described
Noise signal is inhibited.
The embodiment of the invention provides a kind of bracelets with decrease of noise functions, comprising: signal detector, for ring around
Noise signal in border is detected, and detection signal is obtained；Signal processor is obtained for handling the detection signal
It is generated to acoustic information corresponding with the noise signal, and when the acoustic information meets preset condition according to acoustic information
Control instruction；Ultrasonic transmitter, for the ultrasonic signal according to control instruction transmitting corresponding frequencies, so as to noise signal
Inhibited.
As it can be seen that the bracelet in the application can detect the noise signal in ambient enviroment by signal detector,
Signal processor handles the detection signal that signal detector obtains, and obtains corresponding acoustic information, and when the acoustics is believed
When breath meets preset condition, the ultrasonic signal that control instruction control ultrasonic transmitter issues corresponding frequencies is generated, and then right
Noise signal in environment carries out a degree of inhibition.Since bracelet can be with body-worn in human body, therefore in daily life
It wears and can reduce the noise in user surrounding environment using the bracelet in the application, be conducive to the life matter for promoting user
Amount.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the bracelet with decrease of noise functions provided in an embodiment of the present invention；
Fig. 2 is a kind of appearance diagram of the bracelet with decrease of noise functions provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of ultrasonic receiver and ultrasonic transmitter provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another bracelet with decrease of noise functions provided in an embodiment of the present invention；
Fig. 5 is a kind of corresponding flow chart of noise-reduction method of the bracelet with decrease of noise functions provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of bracelet with decrease of noise functions, due to bracelet can with body-worn in human body,
Therefore wear in daily life and can reduce the noise in user surrounding environment using the bracelet in the application, be conducive to be promoted
The quality of life of user.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of the bracelet with decrease of noise functions provided in an embodiment of the present invention.
The bracelet, comprising:
Signal detector 1 obtains detection signal for detecting to the noise signal in ambient enviroment；
Signal processor 2 obtains acoustic information corresponding with noise signal, and work as handling detection signal
Corresponding control instruction is generated according to acoustic information when acoustic information meets preset condition；
Ultrasonic transmitter 3, for the ultrasonic signal according to control instruction transmitting corresponding frequencies, so as to noise signal
Inhibited.
It should be noted that leading to as shown in Fig. 2, bracelet includes shell 21 and the bandage 22 for being set to 21 two sides of shell
Crossing the bandage 22 can be worn over bracelet in the wrist of user, wherein signal detector 1,2 and of signal processor in the application
Ultrasonic transmitter 3 can be set inside the shell 21 of bracelet, also, be additionally provided on the shell 21 of the bracelet in the application
Through-hole 23, the through-hole 23 can be to be multiple, and the transmitting terminal of the receiving end of signal detector 1 and ultrasonic transmitter 3 is and accordingly
Through-hole 23 it is corresponding, that is, the receiving end of signal projector 1 can pass through corresponding through-hole 23 receive signal, ultrasonic wave hair
The transmitting terminal of emitter 3 can be launched ultrasonic signal by corresponding through-hole 23, and through-hole 23 specifically can be set in hand
On the surrounding of toroidal shell body 21 either top surface, corresponding signal detector 1 and ultrasonic transmitter 3 be can be set in bracelet shell
Surrounding in 21 is either arranged in top layer, and the specific position that is arranged can be set according to actual needs, and the application is not spy
It is different to limit.
Specifically, the bracelet in the application, can examine the noise signal in ambient enviroment by signal detector 1
It surveys, and obtained detection signal is sent to signal processor 2, signal processor 2 believes detection after receiving detection signal
It number is analyzed and processed, obtains acoustic information corresponding with noise signal, and divide the acoustic information according to preset condition
Analysis, judges whether the acoustic information meets preset condition, if so, explanation needs to carry out noise reduction to the noise signal of surrounding at this time
Processing can generate corresponding control instruction according to the acoustic information at this time, and will control ultrasonic wave hair by the control instruction
Emitter 3 launches the ultrasonic signal of corresponding frequencies, since the frequency of ultrasonic signal is larger, so can be to a certain extent
Extraneous noise signal is inhibited, to build a relatively quiet living environment for user.In addition, in the application
Signal detector 1 can start to detect the noise signal of ambient enviroment after the detection instruction for receiving user's input,
Noise reduction switch can be set on bracelet, user can input detection instruction by opening the noise reduction switch, so that user is wanting
The decrease of noise functions that can select unlatching bracelet when rest or work according to the actual conditions of ambient enviroment, when signal detector 1
Signal detector 1 starts to detect the noise signal in ambient enviroment when receiving detection instruction.
Wherein, the signal processor 1 in the application may include DSP module and microprocessor, DSP module, for that will examine
It surveys signal and is converted to digital signal, and digital signal is sent to microprocessor；Microprocessor, to digital signal
Reason, obtains acoustic information corresponding with noise signal, and raw according to acoustic information when the acoustic information meets preset condition
At corresponding control instruction.
Further, above-mentioned acoustic information may include intensity of sound；
Signal processor 2, specifically for detection signal handle, obtain intensity of sound corresponding with noise signal,
And corresponding control instruction is generated according to intensity of sound when intensity of sound is within the scope of preset strength.
That is, the intensity of sound with noise signal pair can be obtained according to detection signal, and whether judge the intensity of sound
Within the scope of preset strength, if control instruction can be generated to control the transmitting of ultrasonic transmitter 3 within the scope of preset strength
Ultrasonic signal inhibits extraneous noise signal, wherein the preset strength may range from 35~70 decibels, specifically can be with
It is set, such as is determined according to the actual conditions of indoor work, study or rest environment according to the actual situation.Also need
It is noted that the voice signal, which is not constituted, makes an uproar when the intensity of outside noise signal is lower than the lower limit of the preset strength range
Sound, will not have an impact user, not need to carry out noise reduction process at this time, strong when outside noise signal thus energy saving
When degree is higher than the upper limit of the preset strength range, illustrate that noise is too big, ultrasonic signal is difficult to press down high-intensitive noise
System, at this time without controlling ultrasonic transmitter transmitting ultrasonic signal, in order to avoid waste electric energy, therefore this product is suitable for interior, uses
In the place of office, study or rest, a preferably environment can be provided for user.
Further, the signal detector 1 in the application can be ultrasonic receiver.
Specifically, in view of the advantage at low cost small in size of ultrasonic receiver, so can be using ultrasound in the application
Wave receiver realizes the detection for having noise signal to exterior ambient environment, can specifically be believed according to the ultrasonic reflections received
Number corresponding noise signal is detected.Certainly, the signal detector 1 in the application or sound pick-up directly pick up
Noise signal in ambient enviroment, and signal processor 2 is sent to using the noise signal picked up as detection signal.
Wherein, ultrasonic transmitter 3 may include multiple ultrasonic transmitting elements, and ultrasonic receiver includes more accordingly
A ultrasonic wave receiving unit, each ultrasonic transmitting element are arranged in a one-to-one correspondence with each ultrasonic wave receiving unit.
That is, the corresponding ultrasonic wave receiving unit of each ultrasonic transmitting element, can specifically use ultrasonic transmission/reception
Device is realized, that is to say, that may include multiple ultrasonic transmitter-receivers in the application, wherein including one in each ultrasonic transmitter-receiver
A ultrasonic wave receiving unit and a ultrasonic transmitting element.
Further, since noise may be from different directions, in order to the noise in user surrounding environment
Comprehensive detection and inhibition are carried out, to improve noise reduction effect, the angle of departure of the ultrasonic transmitting element in the application is corresponding
Direction is different, the angle of departure pair in the acceptance angle corresponding direction and corresponding ultrasonic transmitting element of each ultrasonic wave receiving unit
The direction answered is consistent.
Wherein, the release waveform angle of ultrasonic reflections unit is usually 0~135 °, specifically can choose launch angle and is
The ultrasonic wave receiving unit that 110 ° of ultrasonic transmitting element and acceptance angle is 110 °, and the hair of ultrasonic reflections unit
The corresponding direction of firing angle direction corresponding with the acceptance angle of ultrasonic wave receiving unit is identical, namely by a ultrasonic transmitting element
The angle of departure and acceptance angle of the ultrasonic transmitter-receiver constituted with corresponding ultrasonic wave receiving unit can be 110 °, such as the application
In ultrasonic transmitter-receiver have 4, respectively ultrasonic transmitter-receiver A, ultrasonic transmitter-receiver B, ultrasonic transmitter-receiver C and ultrasonic wave
Transceiver D, it is specific as shown in figure 3, four ultrasonic transmitter-receivers respectively correspond different directions, to form one 360 °
Measured zone, wherein ultrasonic transmitter-receiver A includes ultrasonic wave receiving unit A1 and ultrasonic transmitting element A2, ultrasonic transmission/reception
Device B includes ultrasonic wave receiving unit B1 and ultrasonic transmitting element B2, ultrasonic transmitter-receiver C include ultrasonic wave receiving unit C1 and
Ultrasonic transmitting element C2, ultrasonic transmitter-receiver D include ultrasonic wave receiving unit D1 and ultrasonic transmitting element D2.Namely ultrasound
Wave ultrasonic transmitting element A2, ultrasonic transmitting element B2, ultrasonic transmitting element C2 and ultrasonic transmitting element C2 belong to super
Pinger 3；Ultrasonic wave receiving unit A1, ultrasonic wave receiving unit B1, ultrasonic wave receiving unit C1 and ultrasonic wave receive single
First D1 belongs to ultrasonic receiver.
Specifically, each ultrasonic wave receiving unit is respectively used to detect the noise signal on respective direction, and will
The detection signal respectively obtained is sent to signal processor 2；
Signal processor 2 obtains sound corresponding with each detection signal specifically for handling each detection signal
Information is learned, and generates corresponding control instruction according to the acoustic information for meeting preset condition, and control instruction is sent to accordingly
Ultrasonic transmitting element on direction.
It is understood that when the noise signal to ambient enviroment detects, ultrasonic wave receiving unit A1, ultrasonic wave
Receiving unit B1, ultrasonic wave receiving unit C1 and ultrasonic wave receiving unit D1 can examine the noise signal in respective direction
It surveys, and the detection signal respectively detected is sent to signal processor 2, signal processor 2 can carry out each detection signal
Analysis processing, and corresponding control instruction is obtained, such as when outside noise signal is lower, may there was only ultrasonic wave receiving unit
The corresponding acoustic information of detection signal that A1 and ultrasonic wave receiving unit B1 are detected meets corresponding preset condition, then at signal
Reason device 2 can generate control instruction 1 corresponding with wave transmitting unit A2 and ultrasonic transmitting element B2 is surpassed into and control instruction respectively
2, surpass into wave transmitting unit A2 according to control instruction 1 and launches the ultrasonic signal of corresponding frequencies to making an uproar in its detection range
Acoustical signal is inhibited, and ultrasonic transmitting element B2 launches the ultrasonic signal of corresponding frequencies according to corresponding control instruction 2
Noise signal in its detection range is inhibited.It is, signal processor 2 can receive list according to each ultrasonic wave
The detection signal that member detects generates corresponding control instruction, launches ultrasonic wave letter to control corresponding ultrasonic transmitting element
Number to inhibit to the noise signal in respective direction, to reduce influence of the outside noise to user.When extraneous is made an uproar
When sound is stronger, acoustic information corresponding with each ultrasonic wave receiving unit may be all satisfied preset condition, at this time signal processor 2
It can control the ultrasonic signal that each ultrasonic transmitting element emits corresponding frequencies to corresponding direction, so as to
A biggish protection zone is formed, provides a relatively quiet job or living environment for user.
Further, referring to figure 4., the noise information in ambient enviroment is checked in order to facilitate user, this Shen
Please in bracelet can also include display 4；
Signal processor 2 is also used to acoustic information being sent to display；
Display 4, for showing acoustic information.
Further, the bracelet in the application can also include setup module 5, for receiving the parameter letter of user's input
Breath, and preset strength range is configured according to parameter information.
Specifically, user can also according to their needs be configured preset strength range by setup module 5, increase
The flexibility that product uses, being capable of further satisfaction user demand.
In addition, it should also be noted that, safety in order to further ensure user, in case high-intensitive ultrasonic wave is to human body
It causes damages, the signal strength of the ultrasonic signal of the ultrasonic transmitter transmitting in the application is not more than 0.1w/cm2, tool
Body intensity value can be determined according to actual needs, and the present embodiment does not do particular determination.
The embodiment of the invention provides a kind of bracelets with decrease of noise functions, comprising: signal detector, around detecting
Noise signal in environment, and obtained detection signal is sent to signal processor；Signal processor, for according to detection letter
Number control instruction is generated, and control instruction is sent to ultrasonic transmitter；Ultrasonic transmitter, for being sent out according to control instruction
The ultrasonic signal of corresponding frequencies is penetrated, to inhibit to noise signal.
As it can be seen that the bracelet in the application can detect the noise signal in ambient enviroment by signal detector,
Signal processor generates control instruction control ultrasonic transmitter according to the detection signal that signal detector obtains and issues respective tones
The ultrasonic signal of rate, and then a degree of inhibition is carried out to the noise signal in environment.Since bracelet can be with body-worn
It in human body, therefore wears in daily life and can reduce the noise in user surrounding environment using the bracelet in the application, have
Conducive to the quality of life for promoting user.
On the basis of the above embodiments, the embodiment of the present invention provides a kind of bracelet with decrease of noise functions accordingly
Noise-reduction method, specifically referring to figure 5..This method comprises:
S110: detecting the noise signal in ambient enviroment, obtains detection signal；
S120: detection signal is handled, acoustic information corresponding with noise signal is obtained；
S130: judging whether the acoustic information meets preset condition, if so, into S140；
S140: corresponding control instruction is generated according to acoustic information, and according to control instruction control ultrasonic transmitter hair
The ultrasonic signal of corresponding frequencies is penetrated, to inhibit to noise signal.
It should be noted that the noise-reduction method of the bracelet provided in the present embodiment with decrease of noise functions have with it is above-mentioned
With the bracelet beneficial effect having the same of decrease of noise functions provided in embodiment, and to involved in this present embodiment
To the bracelet with decrease of noise functions it is specific introduction please refer to above-described embodiment, details are not described herein by the application.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of bracelet with decrease of noise functions characterized by comprising
Signal detector obtains detection signal for detecting to the noise signal in ambient enviroment；
Signal processor obtains acoustic information corresponding with the noise signal for handling the detection signal, and
Corresponding control instruction is generated according to the acoustic information when the acoustic information meets preset condition；
Ultrasonic transmitter, for the ultrasonic signal according to control instruction transmitting corresponding frequencies, so as to the noise
Signal is inhibited.
2. the bracelet according to claim 1 with decrease of noise functions, which is characterized in that the acoustic information includes that sound is strong
Degree；
The signal processor obtains sound corresponding with the noise signal specifically for handling the detection signal
Loudness of a sound degree, and corresponding control instruction is generated according to the intensity of sound when the intensity of sound is within the scope of preset strength.
3. the bracelet according to claim 2 with decrease of noise functions, which is characterized in that further include display；The signal
Processor is also used to the acoustic information being sent to the display；
The display, for showing the acoustic information.
4. the bracelet according to claim 3 with decrease of noise functions, which is characterized in that further include setup module, for connecing
The parameter information of user's input is received, and the preset strength range is configured according to the parameter information.
5. the bracelet according to claim 1 with decrease of noise functions, which is characterized in that the ultrasonic transmitter transmitting
The signal strength of ultrasonic signal is not more than 0.1w/cm2。
6. according to claim 1 with the bracelet of decrease of noise functions described in -5 any one, which is characterized in that the signal detection
Device is ultrasonic receiver.
7. the bracelet according to claim 6 with decrease of noise functions, which is characterized in that the ultrasonic transmitter includes more
A ultrasonic transmitting element, the ultrasonic receiver include multiple ultrasonic wave receiving units, and each ultrasonic wave transmitting is single
It is first to be arranged in a one-to-one correspondence with each ultrasonic wave receiving unit.
8. the bracelet according to claim 7 with decrease of noise functions, which is characterized in that the hair of the ultrasonic transmitting element
The corresponding direction of firing angle is different, and the corresponding direction of acceptance angle of each ultrasonic wave receiving unit emits with corresponding ultrasonic wave
The corresponding direction of the angle of departure of unit is consistent.
9. the bracelet according to claim 8 with decrease of noise functions, which is characterized in that each ultrasonic wave receiving unit
It is respectively used to detect the noise signal on respective direction, and the detection signal respectively obtained is sent at the signal
Manage device；
The signal processor obtains and each detection signal specifically for handling each detection signal
Corresponding acoustic information, and generate corresponding control instruction according to the acoustic information for meeting the preset condition, and by the control
The ultrasonic transmitting element that system instruction is sent in respective direction.
10. a kind of noise-reduction method of the bracelet with decrease of noise functions characterized by comprising
Noise signal in ambient enviroment is detected, detection signal is obtained；
The detection signal is handled, acoustic information corresponding with the noise signal is obtained；
Judge whether the acoustic information meets preset condition, refers to if so, generating corresponding control according to the acoustic information
It enables, and the ultrasonic signal according to control instruction control ultrasonic transmitter transmitting corresponding frequencies, so as to the noise
Signal is inhibited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319286.4A CN109393664A (en) | 2018-11-07 | 2018-11-07 | A kind of bracelet and noise-reduction method with decrease of noise functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319286.4A CN109393664A (en) | 2018-11-07 | 2018-11-07 | A kind of bracelet and noise-reduction method with decrease of noise functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109393664A true CN109393664A (en) | 2019-03-01 |
Family
ID=65472145
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811319286.4A Pending CN109393664A (en) | 2018-11-07 | 2018-11-07 | A kind of bracelet and noise-reduction method with decrease of noise functions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113313871A (en) * | 2021-05-25 | 2021-08-27 | 中南大学湘雅医院 | A silence formula equipment of calling out numbers that is used for hospital's emergency call can monitor noise |
| CN113640809A (en) * | 2021-08-23 | 2021-11-12 | 飞依诺科技(苏州)有限公司 | Ultrasonic imaging noise reduction method and ultrasonic imaging equipment |
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| CN104952441A (en) * | 2015-07-08 | 2015-09-30 | 成都陌云科技有限公司 | Household electronic noise reducing equipment used beside railway |
| CN206331789U (en) * | 2016-12-06 | 2017-07-14 | 广州杰赛科技股份有限公司 | One kind orientation interference guard sound-producing device |
| CN107633839A (en) * | 2017-08-25 | 2018-01-26 | 中国科学院声学研究所 | A kind of acoustic communication System and method for for active noise controlling |
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| WO2015054661A1 (en) * | 2013-10-11 | 2015-04-16 | Turtle Beach Corporation | Parametric emitter system with noise cancelation |
| CN104952441A (en) * | 2015-07-08 | 2015-09-30 | 成都陌云科技有限公司 | Household electronic noise reducing equipment used beside railway |
| CN206331789U (en) * | 2016-12-06 | 2017-07-14 | 广州杰赛科技股份有限公司 | One kind orientation interference guard sound-producing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113313871A (en) * | 2021-05-25 | 2021-08-27 | 中南大学湘雅医院 | A silence formula equipment of calling out numbers that is used for hospital's emergency call can monitor noise |
| CN113640809A (en) * | 2021-08-23 | 2021-11-12 | 飞依诺科技(苏州)有限公司 | Ultrasonic imaging noise reduction method and ultrasonic imaging equipment |
| CN113640809B (en) * | 2021-08-23 | 2023-08-25 | 飞依诺科技股份有限公司 | Ultrasonic imaging noise reduction method and ultrasonic imaging equipment |
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Application publication date: 20190301 |