WO2013166567A1 - Método para comunicação de dados entre dispositivos através de ondas sonoras - Google Patents
Método para comunicação de dados entre dispositivos através de ondas sonoras Download PDFInfo
- Publication number
- WO2013166567A1 WO2013166567A1 PCT/BR2013/000138 BR2013000138W WO2013166567A1 WO 2013166567 A1 WO2013166567 A1 WO 2013166567A1 BR 2013000138 W BR2013000138 W BR 2013000138W WO 2013166567 A1 WO2013166567 A1 WO 2013166567A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound
- data
- digital
- signal
- devices
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
- H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/07—Applications of wireless loudspeakers or wireless microphones
Definitions
- the present invention deals with a method especially developed for direct application in communication on mobile devices with some computational potential, allowing data communication between two devices without the need for additional hardware or any other connectivity.
- the present invention aims to meet a growing need in the cross-device application market, at least one of which is a mobile device, which can be paired (or paired) simply and thus exchange information that can serve as the basis for more functionalities. complex.
- the pairing function should require physical proximity of the devices.
- Bluetooth technology provides a way to connect and exchange information between devices that have the appropriate hardware and works for short-range communications.
- the pairing process via bluetooth is not trivial as it requires some identification steps that make the experience unintuitive.
- it is not universal either, as some platforms restrict this possibility to devices of the same brand.
- BUMP time event pairing
- two mobile devices perform the same action (shake the handset) at the same time. This action would be the key to initiate device pairing.
- GPS geographical location
- DTMF communication widely known as the sounds played by dial phones, can be used for communication between devices.
- one-way communication is required, where sound is basically reproduced near the microphone of the second device or, alternatively, the devices must be inverted in order to achieve two-way communication. .
- NFC communication is a technology that enables data exchange, small transactions and wireless communication between two devices using low power radio frequencies. This is an efficient technology, but requires both devices to be equipped with the necessary hardware to enable communication with each other.
- the device In the case of connectivity, the device must be connected to the internet through a private, local or cellular network. Using lower frequencies creates the need for a larger signal sample for encoding and decoding data resulting in less efficient transmission. Extreme proximity is another problem, as it requires that the audio output of one device be paired with the microphone of the other and vice versa.
- problems caused by external interference are noted, in the case of the sound communication method using DTMF signals (frequencies in the order of 400Hz and 600Hz), for example, which impairs the reliability of the signal, besides the need for time to pick up the tone, which makes transmission quite slow.
- DTMF signals frequencies in the order of 400Hz and 600Hz
- there is a need for special hardware which is rare in current models and entails higher cost to devices.
- Another object of the present invention is to provide a method of communication between two mobile devices using higher frequencies, which makes the signal less susceptible to interference.
- Another object of the present invention is to provide a method of communication between two devices which, making use of higher frequencies, allows the coding of the signal in smaller sound samples, increasing the transmission speed. It is also an object of the present invention to provide a method of communication between two devices using higher frequencies which, while requiring a certain proximity between the devices, works over distances greater than those of the prior art, such as up to about 10 to 15 inches apart, favoring two-way communication.
- Another additional object of the present invention is to provide a method of communication between two devices making use of higher frequencies so that it can be used by any device with computational capacity, sound output and microphone, thus taking advantage of the enormous variety. handsets currently on the market.
- Figure 1 illustrates a general scheme of data transmission between two devices according to the method of the present invention.
- Figure 2 illustrates a reference signal sample with a base frequency F used for encoding and decoding the data.
- Figure 3 - illustrates a sound sample generated with the encoding of the data to be transmitted.
- Figure 5 illustrates the process of encoding a data to be transmitted in a beep through a diagram.
- Figure 6 illustrates the process of decoding a sound captured by the receiving device microphone through a diagram.
- the method of data transmission between two devices in accordance with the present invention comprises (i) encoding the digital data into digital sound signal, (ii) sending this digital signal for reproduction in audio boxes. emitting device sound, (iii) sound propagation in the air, (iv) microphone sound capture (v) transforming it into digital sound data, and (vi) decoding the digital sound data for retrieving the original conforming data.
- Figure 2 illustrates a sine wave oscillating at a reference frequency F. This wave will be used as the basis for encoding the information. All frequencies below the value of F will be filtered on sound capture through a high pass band filter.
- the preferred sound frequency would be contained within the spectrum in the order of 8KHz to 22KHz. Sound frequencies below 8KHz may, however, be used, but external interference will increase and the transmission speed will necessarily decrease. Sound frequency values above 22KHz would be used when a consumer device with a higher capacity to use even higher frequencies becomes available in the consumer market.
- Time windows correspond to the sequenced bits of the data to be transmitted.
- Binary coding of zeros and ones is done using phase inversion over the original wave.
- a zero bit corresponds to a phase of zero degrees
- a bit one corresponds to a phase of one hundred and eighty degrees.
- This phase inversion in the transmitted wave will allow very simple decoding of the captured sound.
- Figure 3 illustrates data encoded with the appropriate phase inversions. Each color variation indicates a time window corresponding to a bit of information.
- Figure 4 illustrates how the captured sound ( Figure 3) plus the reference signal ( Figure 2) naturally represents the encoded bits.
- the phase inversions of the encoded sound are visually clear where the final wave is nullified or reinforced.
- This coding and decoding method allows data to be read without the need for complex frequency analysis algorithms that, besides being computationally costly, have limitations regarding the frequency acuity generated and the amount of time required to correctly identify the data. given away.
- a wave overlay already allows the data to be read clearly. And, except for a few cases, high frequency noise has low power in ambient sounds, a simple band filter High pass already leaves the captured signal clean enough for this overlap.
- Binary signals may contain both digital data to be transmitted and control and error checking bits.
- the original data is broken into bit sequences.
- Each sequence is encoded in beeps using the method described above.
- the small beeps are then concatenated into a single digital sound data and reproduced on the device's loudspeaker, as illustrated in Figure 5.
- error checking bits can be added to each sequence and / or data. to be transmitted to ensure the reliability of the transmission process.
- the device digitizes the captured ambient sound and, through constant sample analysis, a data signal start is detected. The samples are then broken for wave overlap and, by one of the methods described above, are encoded in bit sequences. These bit sequences are then concatenated so that the transmitted data is retrieved. The process is illustrated in Figure 6.
- One of the preferred applications of the present invention is its use in mobile payment systems, thus enabling the large number of mobile devices (smartphones, tablets and the like) on the market to act as point of sale (POS) and payment devices. using simple billing and payment mechanics.
- POS point of sale
- payment devices using simple billing and payment mechanics.
- POS sales device
- the paying device P with its application is approached to the POS and through an application-specific protocol, the devices communicate by sound, exchanging the necessary information to effect the transaction.
- the consent of the payer is then sufficient for the transaction to be completed.
- One of the most straightforward features of the present invention is device pairing to enable two physically close devices to share data simply and intuitively.
- method of data transmission between two devices according to the present invention it is possible to easily pair two devices A and B by simply having device A and device B using the same application and being physically close.
- a and B can recognize each other and establish a link for information exchange. From this point on, both sender and recipient will already be identified for receiving and sending data.
- an LF device may be connected to a door and safe release mechanism.
- Said locking DF device will be constantly listening to ambient sound and will have a database of disposable "keys" (data strings).
- a DL opening device will also have a database of "keys” for playback.
- the DF lock device When playing one of the "key sounds", the DF lock device will recognize its validity and open the door. The "key sound” used automatically becomes invalid after opening and will be discarded from both databases.
- An example of an additional application is the exchange of personal contact information, eg business cards.
- personal contact information eg business cards.
- personal data such as name, company, address, telephone, email, etc.
- the personal information of each will be transmitted by sound and properly recorded in an internal database of each device for future use.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13788510.9A EP2849459A4 (en) | 2012-05-09 | 2013-04-30 | METHOD FOR DATA COMMUNICATION BETWEEN DEVICES OVER SOUND WAVES |
JP2015510580A JP2015524180A (ja) | 2012-05-09 | 2013-04-30 | 音波による装置間のデータ伝送方法 |
BR112014027929A BR112014027929A2 (pt) | 2012-05-09 | 2013-04-30 | método para comunicação de dados entre dispositivos através de ondas sonoras. |
KR20147031445A KR20150020268A (ko) | 2012-05-09 | 2013-04-30 | 음향파들을 통한 디바이스들 간의 데이터 전송 방법 |
CN201380024599.6A CN104769965A (zh) | 2012-05-09 | 2013-04-30 | 通过声波在装置之间传输数据的方法 |
IN10105DEN2014 IN2014DN10105A (pt) | 2012-05-09 | 2013-04-30 | |
US14/399,866 US20150163336A1 (en) | 2012-05-09 | 2013-04-30 | Method for the transmission of data between devices over sound waves |
ZA2014/08692A ZA201408692B (en) | 2012-05-09 | 2014-11-26 | Method for the transmission of data between devices over acoustic waves |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRBR1020120109131 | 2012-05-09 | ||
BRBR102012010913-1A BR102012010913A2 (pt) | 2012-05-09 | 2012-05-09 | Método para comunicação de dados entre dispositivos através de ondas sonoras |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2013166567A1 true WO2013166567A1 (pt) | 2013-11-14 |
WO2013166567A8 WO2013166567A8 (pt) | 2014-05-22 |
Family
ID=49550002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2013/000138 WO2013166567A1 (pt) | 2012-05-09 | 2013-04-30 | Método para comunicação de dados entre dispositivos através de ondas sonoras |
Country Status (8)
Country | Link |
---|---|
US (1) | US20150163336A1 (pt) |
JP (1) | JP2015524180A (pt) |
KR (1) | KR20150020268A (pt) |
CN (1) | CN104769965A (pt) |
BR (2) | BR102012010913A2 (pt) |
IN (1) | IN2014DN10105A (pt) |
WO (1) | WO2013166567A1 (pt) |
ZA (1) | ZA201408692B (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2821994A3 (en) * | 2013-07-05 | 2015-02-11 | Square Enix Co., Ltd. | Game system, information processing device, program, and storage medium |
Families Citing this family (15)
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US9680763B2 (en) | 2012-02-14 | 2017-06-13 | Airwatch, Llc | Controlling distribution of resources in a network |
US10404615B2 (en) | 2012-02-14 | 2019-09-03 | Airwatch, Llc | Controlling distribution of resources on a network |
US20140280955A1 (en) | 2013-03-14 | 2014-09-18 | Sky Socket, Llc | Controlling Electronically Communicated Resources |
US9401915B2 (en) * | 2013-03-15 | 2016-07-26 | Airwatch Llc | Secondary device as key for authorizing access to resources |
US9584964B2 (en) | 2014-12-22 | 2017-02-28 | Airwatch Llc | Enforcement of proximity based policies |
KR102406695B1 (ko) * | 2015-12-24 | 2022-06-08 | 삼성전자주식회사 | 무선 통신 시스템에서 사운드 신호를 기반으로 데이터를 송신 및 수신하는 장치 및 방법 |
CN107645343B (zh) * | 2016-07-20 | 2021-10-22 | 阿里巴巴集团控股有限公司 | 基于声波的数据发送/接收方法及数据传输系统 |
WO2018165110A1 (en) | 2017-03-07 | 2018-09-13 | Ohio State Innovation Foundation | Data delivery using acoustic transmissions |
CN107484114A (zh) * | 2017-09-29 | 2017-12-15 | 歌尔股份有限公司 | 蓝牙设备的配对方法及系统 |
CN109379162A (zh) * | 2018-08-02 | 2019-02-22 | 安徽森力汽车电子有限公司 | 一种通过声波传输数字信号的方法 |
CN108769974B (zh) * | 2018-09-11 | 2021-09-21 | 深圳市沃特沃德信息有限公司 | 蓝牙连接的方法与系统 |
US11283781B2 (en) | 2019-04-09 | 2022-03-22 | Visa International Service Association | Proximity interaction system including secure encryption scheme |
CN112135281A (zh) * | 2020-09-25 | 2020-12-25 | 北京百瑞互联技术有限公司 | 一种使用音频进行蓝牙配对鉴权的方法、装置及存储介质 |
WO2023276144A1 (ja) * | 2021-07-02 | 2023-01-05 | 三菱電機株式会社 | 音響通信システム及び音響通信方法 |
CN115050167B (zh) * | 2022-08-17 | 2022-11-25 | 广州市保伦电子有限公司 | 一种基于声波识别的报警系统 |
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2012
- 2012-05-09 BR BRBR102012010913-1A patent/BR102012010913A2/pt not_active Application Discontinuation
-
2013
- 2013-04-30 JP JP2015510580A patent/JP2015524180A/ja active Pending
- 2013-04-30 WO PCT/BR2013/000138 patent/WO2013166567A1/pt active Application Filing
- 2013-04-30 CN CN201380024599.6A patent/CN104769965A/zh active Pending
- 2013-04-30 US US14/399,866 patent/US20150163336A1/en not_active Abandoned
- 2013-04-30 BR BR112014027929A patent/BR112014027929A2/pt not_active Application Discontinuation
- 2013-04-30 IN IN10105DEN2014 patent/IN2014DN10105A/en unknown
- 2013-04-30 KR KR20147031445A patent/KR20150020268A/ko not_active Application Discontinuation
-
2014
- 2014-11-26 ZA ZA2014/08692A patent/ZA201408692B/en unknown
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2821994A3 (en) * | 2013-07-05 | 2015-02-11 | Square Enix Co., Ltd. | Game system, information processing device, program, and storage medium |
US9849373B2 (en) | 2013-07-05 | 2017-12-26 | Square Enix Co., Ltd. | Game system, information processing device, and storage medium |
Also Published As
Publication number | Publication date |
---|---|
ZA201408692B (en) | 2016-08-31 |
CN104769965A (zh) | 2015-07-08 |
BR102012010913A2 (pt) | 2014-05-13 |
BR112014027929A2 (pt) | 2017-06-27 |
KR20150020268A (ko) | 2015-02-25 |
IN2014DN10105A (pt) | 2015-08-21 |
WO2013166567A8 (pt) | 2014-05-22 |
JP2015524180A (ja) | 2015-08-20 |
US20150163336A1 (en) | 2015-06-11 |
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