CN106850079A - The method for pushing and system of a kind of utilization ultrasonic wave broadcast transmission of data - Google Patents
The method for pushing and system of a kind of utilization ultrasonic wave broadcast transmission of data Download PDFInfo
- Publication number
- CN106850079A CN106850079A CN201611107987.2A CN201611107987A CN106850079A CN 106850079 A CN106850079 A CN 106850079A CN 201611107987 A CN201611107987 A CN 201611107987A CN 106850079 A CN106850079 A CN 106850079A
- Authority
- CN
- China
- Prior art keywords
- byte
- ultrasonic wave
- byte arrays
- frequency
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of method for pushing of utilization ultrasonic wave broadcast transmission of data, including ultrasonic waveform into ultrasonic wave analyzing step, ultrasonic waveform is into comprising the following steps：S11, the information of required transmission is changed into byte arrays, S12, coding is carried out to the byte arrays after conversion by ultrasonic wave generating algorithm form sound wave byte arrays, S13, broadcasted sound wave byte arrays in a voice form；Ultrasonic wave parsing is comprised the following steps：S21, the sound for obtaining including sound wave byte arrays by recording；S22, decoding process is carried out by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, obtain corresponding transmission information.The present invention provides a kind of supplying system of utilization ultrasonic wave broadcast transmission of data.Method for pushing and system that the present invention is provided, when being carried out data transmission using ultrasonic wave, data transfer is relatively low to environmental requirement, is not in decoding abnormal, can correctly identify the transmission information in sound wave, can be applied to interconnecting between multiple terminals.
Description
Technical field
The present invention relates to ultrasonic technology field, and in particular to a kind of method for pushing of utilization ultrasonic wave broadcast transmission of data
And system.
Background technology
At present, have various by way of sonic transmissions data, sound wave mode transmits data and is mainly the information of being applied to
Propagate, sender and recipient, i.e. a side are mainly included in transmitting procedure and is transmitted, the opposing party is received.But, this
The inventor of invention has found that when carrying out data transmission using sound wave, its data transfer is higher to environmental requirement by research,
Just occur that decoding is abnormal somewhat under complex environment, so as to lead to not correctly identify the information in sound wave, i.e., sound wave is passed
Defeated Major Difficulties are that noise in environment is separated by filtration.
The content of the invention
When the utilization sound wave existed for prior art carries out data transmission, its data transfer is higher to environmental requirement,
Just occur that decoding is abnormal under somewhat complex environment, so as to lead to not correctly identify that the technology of the information in sound wave is asked
Topic, the present invention provides a kind of method for pushing of utilization ultrasonic wave broadcast transmission of data.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of method for pushing of utilization ultrasonic wave broadcast transmission of data, methods described include ultrasonic waveform into ultrasonic wave solution
Analysis step；Wherein,
The ultrasonic waveform is into comprising the following steps：
S11, the information of required transmission is changed into byte arrays；
S12, coding is carried out to the byte arrays after conversion by ultrasonic wave generating algorithm form sound wave byte arrays；
S13, sound wave byte arrays are broadcasted in a voice form；
The ultrasonic wave parsing is comprised the following steps：
S21, the sound for obtaining including sound wave byte arrays by recording；
S22, decoding process is carried out by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, obtain corresponding biography
Defeated information.
Further, before the step S11, needed for also including determining the step of transmission information.
Further, it is described the byte arrays after conversion are compiled by ultrasonic wave generating algorithm in the step S12
The step of code forms sound wave byte arrays specifically includes：
According to expression formula AFun (2Pi*C*R/M), each byte in sound wave byte arrays is generated into M*T/1000 numbers
According to these data are the sound wave byte arrays described in composition；
Wherein, A is ultrasonic amplitude, and Fun (x) is ultrasonic wave function, and Fun can be arbitrary sin cos functionses, and Pi is
Pi, C is for sampling number and span is 0~M*T/1000, and R is to include the corresponding frequency of each byte for ultrasonic frequency
Rate and the beginning and end frequency of setting, T is transmission time, and M is sample frequency.
Further, in the step S22, the sound wave byte arrays in sound are entered by ultrasonic wave analytical algorithm
The step of row decoding process, specifically includes：
The sound wave byte arrays obtained by recording are constantly isolated into corresponding frequency by Fourier transformation, it is determined that current
Frequency is for after starts frequency, the rule of correspondence of frequency and byte finds when the frequency subsequently isolated again is then generated using ultrasonic wave
Corresponding byte, and byte is continuously added in byte arrays, until the frequency isolated is to terminate frequency, according to the word
Joint number group can be directly changed into the transmission information that correspondence is specified.
The present invention also provides a kind of supplying system of utilization ultrasonic wave broadcast transmission of data, and the system includes ultrasonic waveform
Into module and ultrasonic wave parsing module；Wherein,
The ultrasonic waveform includes into module：
Conversion unit, for the information of required transmission to be changed into byte arrays；
Coding unit, sound wave byte is formed for carrying out coding to the byte arrays after conversion by ultrasonic wave generating algorithm
Array；
Radio unit, for sound wave byte arrays to be broadcasted in a voice form；
The ultrasonic wave parsing module includes：
Recoding unit, the sound for obtaining including sound wave byte arrays by recording；
Decoding unit, for carrying out decoding process by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, obtains
To corresponding transmission information.
Further, the determining unit of transmission information needed for the system also includes determining.
Further, it is described the byte arrays after conversion are carried out by ultrasonic wave generating algorithm in the coding unit
Coding forms sound wave byte arrays and specifically includes：
According to expression formula AFun (2Pi*C*R/M), each byte in sound wave byte arrays is generated into M*T/1000 numbers
According to these data are the sound wave byte arrays described in composition；
Wherein, A is ultrasonic amplitude, and Fun (x) is ultrasonic wave function, and Fun can be arbitrary sin cos functionses, and Pi is
Pi, C is for sampling number and span is 0~M*T/1000, and R is to include the corresponding frequency of each byte for ultrasonic frequency
Rate and the beginning and end frequency of setting, T is transmission time, and M is sample frequency.
Further, in the decoding unit, the sound wave byte arrays in sound pass through ultrasonic wave analytical algorithm
Carrying out decoding process includes：
Separative element, for the sound wave byte arrays obtained by recording constantly to be isolated into corresponding frequency by Fourier transformation
Rate；
Adding device is judged, for after it is determined that current frequency is starts frequency, the frequency subsequently isolated again then to be utilized
The rule of correspondence of frequency and byte finds corresponding byte when ultrasonic wave is generated, and byte is continuously added in byte arrays,
Until the frequency isolated is to terminate frequency；
Converting unit, for being directly changed into the transmission information that correspondence is specified according to the byte arrays.
Compared with prior art, the method for pushing and system of the utilization ultrasonic wave broadcast transmission of data that the present invention is provided, energy
The information of enough transmission from needed for Background control and modification, be can the real time modifying information transmitted, it is determined that being transmitted
After information, transmission information is changed into byte arrays, can so ensure that the information including any form including Chinese can
By sonic transmissions, coding is then carried out by ultrasonic wave generating algorithm and forms sound wave byte group array, by sound wave byte arrays
Broadcasted in a voice form；Receiving terminal gets the sound for including sound wave byte arrays by constantly recording, so
The sound for getting not only comprising transmission specify information sound, also comprising environment in various noises, then by sound wave byte
Array carries out decoding process by ultrasonic wave analytical algorithm, so as to just really receive the information data of transmission in receiving terminal.Cause
This, the present invention mainly includes two parts using ultrasonic transmission data, and a part is that transmitted information forms sound wave, another portion
It is that transmitted information is parsed from sound to divide, and when being carried out data transmission using ultrasonic wave, its data transfer is to environment
It is required that it is relatively low, be not in abnormal decoding under somewhat complex environment, the transmission information in sound wave can be correctly identified, thus
Interconnecting between multiple terminals can be applied to.
Brief description of the drawings
Fig. 1 is the method for pushing schematic flow sheet of the utilization ultrasonic wave broadcast transmission of data that the present invention is provided.
Fig. 2 is the supplying system principle schematic of the utilization ultrasonic wave broadcast transmission of data that the present invention is provided.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Refer to shown in Fig. 1, the present invention provides a kind of method for pushing of utilization ultrasonic wave broadcast transmission of data, methods described
Including ultrasonic waveform into ultrasonic wave analyzing step；Wherein,
The ultrasonic waveform is into comprising the following steps：
S11, the information of required transmission is changed into byte arrays, can specifically use familiar to the person skilled in the art
.net programming is carried out with java programming languages, it is possible thereby to ensure that the information including any form including Chinese can lead to
Cross sonic transmissions；
S12, coding is carried out to the byte arrays after conversion by ultrasonic wave generating algorithm form sound wave byte arrays；
S13, sound wave byte arrays are broadcasted in a voice form；
The ultrasonic wave parsing is comprised the following steps：
S21, the sound for obtaining including sound wave byte arrays by constantly recording, the sound for so getting not only are wrapped
Containing transmission specify information sound, also including environment in various noises；
S22, decoding process carried out by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, receiving terminal is just real
Ground receives the data of transmission, obtains corresponding transmission information.
As specific embodiment, before the step S11, needed for also including determining the step of transmission information, specifically may be used
With from the information of transmission needed for Background control and modification, that is, can the information transmitted of real time modifying, thus complete to be passed
Defeated information is determined.
As specific embodiment, in the step S12, it is described by ultrasonic wave generating algorithm to the byte number after conversion
Group carries out the step of coding forms sound wave byte arrays and specifically includes：
According to expression formula AFun (2Pi*C*R/M), each byte in sound wave byte arrays is generated into M*T/1000 numbers
According to these data are the sound wave byte arrays described in composition；
Wherein, A is ultrasonic amplitude, and Fun (x) is ultrasonic wave function, and Fun can be arbitrary sin cos functionses, and Pi is
Pi, C is for sampling number and span is 0~M*T/1000, and R is to include the corresponding frequency of each byte for ultrasonic frequency
Rate and the beginning and end frequency of setting, T is transmission time, and M is sample frequency.Certainly, those skilled in the art are in this reality
Apply on the basis of example, the byte arrays after conversion can also be encoded using other ultrasonic wave generating algorithms, to be formed
Corresponding sound wave byte arrays.
Used as specific embodiment, in the step S22, the sound wave byte arrays in sound pass through ultrasonic wave solution
The step of analysis algorithm carries out decoding process specifically includes：
The sound wave byte arrays obtained by recording are constantly passed through into Fourier transformation (FFT, Fast Fourier
Transformation corresponding frequency) is isolated, after it is determined that current frequency is starts frequency, the frequency subsequently isolated again
The rule of correspondence of frequency and byte finds corresponding byte when then being generated using ultrasonic wave, and byte is continuously added into byte number
In group, until the frequency isolated is to terminate frequency, the transmission that correspondence is specified can be directly changed into according to the byte arrays
Information；The byte arrays are converted into the inverse process that the corresponding transmission information specified is the step S11, and are this area
Known to technical staff, thus will not be repeated here.
Refer to shown in Fig. 2, the present invention also provides a kind of supplying system of utilization ultrasonic wave broadcast transmission of data, the system
System includes ultrasonic waveform into module and ultrasonic wave parsing module；Wherein,
The ultrasonic waveform includes into module：
Conversion unit, for the information of required transmission to be changed into byte arrays, can specifically use people in the art
.net and java programming languages familiar to member carry out programming, it is possible thereby to ensure the letter including any form including Chinese
Breath can be transferred through sonic transmissions；
Coding unit, sound wave byte is formed for carrying out coding to the byte arrays after conversion by ultrasonic wave generating algorithm
Array；
Radio unit, for sound wave byte arrays to be broadcasted in a voice form；
The ultrasonic wave parsing module includes：
Recoding unit, the sound for obtaining including sound wave byte arrays by recording, the sound for so getting is not
Only comprising transmission specify information sound, also including environment in various noises；
Decoding unit, for carrying out decoding process by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, connects
Receiving end just veritably receives the data of transmission, obtains corresponding transmission information.
Used as specific embodiment, the system also includes determining the determining unit of required transmission information, the determining unit
Specifically can from the information of transmission needed for Background control and modification, that is, can the information transmitted of real time modifying, it is thus complete
It is determined into the information transmitted.
As specific embodiment, in the coding unit, it is described by ultrasonic wave generating algorithm to the byte after conversion
Array carries out coding and forms sound wave byte arrays specifically including：
According to expression formula AFun (2Pi*C*R/M), each byte in sound wave byte arrays is generated into M*T/1000 numbers
According to these data are the sound wave byte arrays described in composition；
Wherein, A is ultrasonic amplitude, and Fun (x) is ultrasonic wave function, and Fun can be arbitrary sin cos functionses, and Pi is
Pi, C is for sampling number and span is 0~M*T/1000, and R is to include the corresponding frequency of each byte for ultrasonic frequency
Rate and the beginning and end frequency of setting, T is transmission time, and M is sample frequency.Certainly, those skilled in the art are in this reality
Apply on the basis of example, the byte arrays after conversion can also be encoded using other ultrasonic wave generating algorithms, to be formed
Corresponding sound wave byte arrays.
Used as specific embodiment, in the decoding unit, the sound wave byte arrays in sound pass through ultrasonic wave
Analytical algorithm carries out decoding process to be included：
Separative element, for the sound wave byte arrays obtained by recording constantly to be isolated into corresponding frequency by Fourier transformation
Rate；
Adding device is judged, for after it is determined that current frequency is starts frequency, the frequency subsequently isolated again then to be utilized
The rule of correspondence of frequency and byte finds corresponding byte when ultrasonic wave is generated, and byte is continuously added in byte arrays,
Until the frequency isolated is to terminate frequency；
Converting unit, for being directly changed into the transmission information specified of correspondence according to the byte arrays, and by the word
Joint number group is converted into the inverse process that the corresponding transmission information specified is the conversion unit, and for those skilled in the art are ripe
Know, thus will not be repeated here.
Compared with prior art, the method for pushing and system of the utilization ultrasonic wave broadcast transmission of data that the present invention is provided, energy
The information of enough transmission from needed for Background control and modification, be can the real time modifying information transmitted, it is determined that being transmitted
After information, transmission information is changed into byte arrays, can so ensure that the information including any form including Chinese can
By sonic transmissions, coding is then carried out by ultrasonic wave generating algorithm and forms sound wave byte group array, by sound wave byte arrays
Broadcasted in a voice form；Receiving terminal gets the sound for including sound wave byte arrays by constantly recording, so
The sound for getting not only comprising transmission specify information sound, also comprising environment in various noises, then by sound wave byte
Array carries out decoding process by ultrasonic wave analytical algorithm, so as to just really receive the information data of transmission in receiving terminal.Cause
This, the present invention mainly includes two parts using ultrasonic transmission data, and a part is that transmitted information forms sound wave, another portion
It is that transmitted information is parsed from sound to divide, and when being carried out data transmission using ultrasonic wave, its data transfer is to environment
It is required that it is relatively low, be not in abnormal decoding under somewhat complex environment, the transmission information in sound wave can be correctly identified, thus
Interconnecting between multiple terminals can be applied to.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (8)
1. a kind of method for pushing of utilization ultrasonic wave broadcast transmission of data, it is characterised in that methods described include ultrasonic waveform into
With ultrasonic wave analyzing step；Wherein,
The ultrasonic waveform is into comprising the following steps：
S11, the information of required transmission is changed into byte arrays；
S12, coding is carried out to the byte arrays after conversion by ultrasonic wave generating algorithm form sound wave byte arrays；
S13, sound wave byte arrays are broadcasted in a voice form；
The ultrasonic wave parsing is comprised the following steps：
S21, the sound for obtaining including sound wave byte arrays by recording；
S22, decoding process is carried out by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, obtain corresponding transmission letter
Breath.
2. the method for pushing of utilization ultrasonic wave broadcast transmission of data according to claim 1, it is characterised in that in the step
Before rapid S11, needed for also including determining the step of transmission information.
3. the method for pushing of utilization ultrasonic wave broadcast transmission of data according to claim 1, it is characterised in that in the step
It is described the byte arrays after conversion to be carried out by ultrasonic wave generating algorithm encode the step to form sound wave byte arrays in rapid S12
Suddenly specifically include：
According to expression formula AFun (2Pi*C*R/M), each byte in sound wave byte arrays is generated into M*T/1000 data, this
A little data are the sound wave byte arrays described in composition；
Wherein, A is ultrasonic amplitude, and Fun (x) is ultrasonic wave function, and Fun can be arbitrary sin cos functionses, and Pi is circumference
Rate, C is that sampling number and span are 0~M*T/1000, R for ultrasonic frequency be include the corresponding frequency of each byte with
And the beginning and end frequency of setting, T is transmission time, and M is sample frequency.
4. the method for pushing of utilization ultrasonic wave broadcast transmission of data according to claim 1, it is characterised in that in the step
Specifically wrapped in rapid S22, the step of the sound wave byte arrays in sound carry out decoding process by ultrasonic wave analytical algorithm
Include：
The sound wave byte arrays obtained by recording are constantly isolated into corresponding frequency by Fourier transformation, it is determined that current frequency
After for starts frequency, the rule of correspondence of frequency and byte finds accordingly when the frequency subsequently isolated again is then generated using ultrasonic wave
Byte, and byte is continuously added in byte arrays, until the frequency isolated is to terminate frequency, according to the byte number
Group can be directly changed into the transmission information that correspondence is specified.
5. a kind of supplying system of utilization ultrasonic wave broadcast transmission of data, it is characterised in that the system include ultrasonic waveform into
Module and ultrasonic wave parsing module；Wherein,
The ultrasonic waveform includes into module：
Conversion unit, for the information of required transmission to be changed into byte arrays；
Coding unit, sound wave byte number is formed for carrying out coding to the byte arrays after conversion by ultrasonic wave generating algorithm
Group；
Radio unit, for sound wave byte arrays to be broadcasted in a voice form；
The ultrasonic wave parsing module includes：
Recoding unit, the sound for obtaining including sound wave byte arrays by recording；
Decoding unit, for carrying out decoding process by ultrasonic wave analytical algorithm to the sound wave byte arrays in sound, obtains right
The transmission information answered.
6. the supplying system of utilization ultrasonic wave broadcast transmission of data according to claim 5, it is characterised in that the system
The determining unit of transmission information needed for also including determining.
7. the supplying system of utilization ultrasonic wave broadcast transmission of data according to claim 5, it is characterised in that in the volume
It is described coding to be carried out to the byte arrays after conversion by ultrasonic wave generating algorithm to form sound wave byte arrays specific in code unit
Including：
According to expression formula AFun (2Pi*C*R/M), each byte in sound wave byte arrays is generated into M*T/1000 data, this
A little data are the sound wave byte arrays described in composition；
Wherein, A is ultrasonic amplitude, and Fun (x) is ultrasonic wave function, and Fun can be arbitrary sin cos functionses, and Pi is circumference
Rate, C is that sampling number and span are 0~M*T/1000, R for ultrasonic frequency be include the corresponding frequency of each byte with
And the beginning and end frequency of setting, T is transmission time, and M is sample frequency.
8. the supplying system of utilization ultrasonic wave broadcast transmission of data according to claim 5, it is characterised in that in the solution
In code unit, the sound wave byte arrays in sound carry out decoding process by ultrasonic wave analytical algorithm to be included：
Separative element, for the sound wave byte arrays obtained by recording constantly to be isolated into corresponding frequency by Fourier transformation；
Adding device is judged, for after it is determined that current frequency is starts frequency, the frequency subsequently isolated again to be then using ultrasound
The rule of correspondence of frequency and byte finds corresponding byte when ripple is generated, and byte is continuously added in byte arrays, until
The frequency isolated is end frequency；
Converting unit, for being directly changed into the transmission information that correspondence is specified according to the byte arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107987.2A CN106850079A (en) | 2016-12-06 | 2016-12-06 | The method for pushing and system of a kind of utilization ultrasonic wave broadcast transmission of data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611107987.2A CN106850079A (en) | 2016-12-06 | 2016-12-06 | The method for pushing and system of a kind of utilization ultrasonic wave broadcast transmission of data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106850079A true CN106850079A (en) | 2017-06-13 |
Family
ID=59145575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611107987.2A Pending CN106850079A (en) | 2016-12-06 | 2016-12-06 | The method for pushing and system of a kind of utilization ultrasonic wave broadcast transmission of data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106850079A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964787A (en) * | 2018-07-06 | 2018-12-07 | 南京航空航天大学 | A kind of information broadcast method based on ultrasound |
| CN110176963A (en) * | 2018-07-27 | 2019-08-27 | 上海英翼通讯科技有限公司 | A kind of variable-length ultrasonic wave audio coding method and coding/decoding method |
| CN110875783A (en) * | 2018-09-04 | 2020-03-10 | 苏州迪芬德物联网科技有限公司 | Ultrasonic communication method |
| CN110874062A (en) * | 2018-09-04 | 2020-03-10 | 苏州迪芬德物联网科技有限公司 | Intelligent home system based on WIFI |
| CN112839250A (en) * | 2018-01-30 | 2021-05-25 | 上海赛连信息科技有限公司 | Wireless screen transmission method and device |
| CN112911057A (en) * | 2021-01-18 | 2021-06-04 | 努比亚技术有限公司 | Volume adjusting method, device and system, mobile terminal and computer readable storage medium |
| CN113721796A (en) * | 2021-08-25 | 2021-11-30 | 读书郎教育科技有限公司 | Ultrasonic communication interactive pen equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560836A (en) * | 2013-10-31 | 2014-02-05 | 深圳市凡趣科技有限公司 | Sound wave wireless communication method and device |
| US20150207560A1 (en) * | 2014-01-21 | 2015-07-23 | Jts Professional Co., Ltd. | Wireless microphone based communications system |
| CN104954430A (en) * | 2015-04-24 | 2015-09-30 | 广州市鸣月互联网科技有限公司 | Sound wave based wireless information push method |
| CN105846909A (en) * | 2016-03-17 | 2016-08-10 | 海信集团有限公司 | Acoustic wave signal sending and receiving method and device, and system thereof |
-
2016
- 2016-12-06 CN CN201611107987.2A patent/CN106850079A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560836A (en) * | 2013-10-31 | 2014-02-05 | 深圳市凡趣科技有限公司 | Sound wave wireless communication method and device |
| US20150207560A1 (en) * | 2014-01-21 | 2015-07-23 | Jts Professional Co., Ltd. | Wireless microphone based communications system |
| CN104954430A (en) * | 2015-04-24 | 2015-09-30 | 广州市鸣月互联网科技有限公司 | Sound wave based wireless information push method |
| CN105846909A (en) * | 2016-03-17 | 2016-08-10 | 海信集团有限公司 | Acoustic wave signal sending and receiving method and device, and system thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112839250A (en) * | 2018-01-30 | 2021-05-25 | 上海赛连信息科技有限公司 | Wireless screen transmission method and device |
| CN108964787A (en) * | 2018-07-06 | 2018-12-07 | 南京航空航天大学 | A kind of information broadcast method based on ultrasound |
| CN108964787B (en) * | 2018-07-06 | 2021-02-19 | 南京航空航天大学 | Information broadcasting method based on ultrasonic waves |
| CN110176963A (en) * | 2018-07-27 | 2019-08-27 | 上海英翼通讯科技有限公司 | A kind of variable-length ultrasonic wave audio coding method and coding/decoding method |
| WO2020019425A1 (en) * | 2018-07-27 | 2020-01-30 | 上海英翼文化传播有限公司 | Variable-length ultrasonic audio encoding method and decoding method |
| CN110875783A (en) * | 2018-09-04 | 2020-03-10 | 苏州迪芬德物联网科技有限公司 | Ultrasonic communication method |
| CN110874062A (en) * | 2018-09-04 | 2020-03-10 | 苏州迪芬德物联网科技有限公司 | Intelligent home system based on WIFI |
| CN112911057A (en) * | 2021-01-18 | 2021-06-04 | 努比亚技术有限公司 | Volume adjusting method, device and system, mobile terminal and computer readable storage medium |
| CN112911057B (en) * | 2021-01-18 | 2023-08-11 | 努比亚技术有限公司 | Volume adjustment method, device, system, mobile terminal and computer readable storage medium |
| CN113721796A (en) * | 2021-08-25 | 2021-11-30 | 读书郎教育科技有限公司 | Ultrasonic communication interactive pen equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106850079A (en) | The method for pushing and system of a kind of utilization ultrasonic wave broadcast transmission of data | |
| Hardman et al. | Reliable audio for use over the Internet | |
| CN101299632B (en) | Synchronization and segment type detection method for data transmission via an audio communication system | |
| US8392176B2 (en) | Processing of excitation in audio coding and decoding | |
| Gabor | Communication theory and cybernetics | |
| CN101488344B (en) | Quantitative noise leakage control method and apparatus | |
| Tayel et al. | A proposed implementation method of an audio steganography technique | |
| CN108964787A (en) | A kind of information broadcast method based on ultrasound | |
| CN102479513B (en) | Error concealment for sub-band coded audio signals | |
| CN101521010B (en) | Coding and decoding method for voice frequency signals and coding and decoding device | |
| CN102034480A (en) | Communication method of underwater digital voice | |
| CN110364170A (en) | Voice transmission method, device, computer installation and storage medium | |
| CN103915097B (en) | Voice signal processing method, device and system | |
| CN106170929A (en) | There is the communication system of the noise immunity of improvement, method and apparatus | |
| CN102737637A (en) | Method for data transmission by using voice-like modulation and demodulation | |
| KR20080059657A (en) | Signal coding and decoding based on spectral dynamics | |
| CN101969348B (en) | Portable underwater acoustic communication equipment and method for frogman | |
| CN111107284A (en) | Real-time generation system and generation method for video subtitles | |
| CN106033671A (en) | Method and device for determining inter-channel time difference parameter | |
| CN112908345B (en) | Voice compression and decompression method for Internet of things | |
| US11870501B2 (en) | Method and system for improved acoustic transmission of data | |
| JPS6072343A (en) | Device and method for scrambling voice signal in transmission channel | |
| CN101814289A (en) | Digital audio multi-channel coding method and system of DRA (Digital Recorder Analyzer) with low bit rate | |
| CN101740030B (en) | Method and device for transmitting and receiving speech signals | |
| CN105702260A (en) | MATLAB-based multifunctional voice test filtering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |