Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 11 - Transmission systems employing ultrasonic, sonic or infrasonic waves
Patents for H04B 11 - Transmission systems employing ultrasonic, sonic or infrasonic waves (1,545)
03/2013
03/06/2013CN102959884A Method and device for identifying objects and triggering interactions by means of close-range coupling of acoustically modulated data signals
03/06/2013CN102957483A Terminal device, system and method for realizing communication by sound wave
02/2013
02/27/2013EP2561632A2 System and method for data transmission via acoustic channels
02/26/2013US8385155 Digital hydrophone
02/19/2013US8380375 Device, computer storage medium, and computer implemented method for metrology with inertial navigation system and aiding
02/06/2013EP2553842A1 Method of wireless communication between several senders and at least one receiver
02/05/2013US8369185 Inter-diver signaling device and process
01/2013
01/30/2013EP2552038A1 Sending device
01/29/2013US8363513 Underwater communications
01/15/2013US8355295 Underwater mobile sensing/communications node and network of such nodes
01/02/2013CN102857302A Audio communication system and audio communication method
12/2012
12/26/2012CN202634448U Ultrasonic-based information exchange system
12/26/2012CN202634447U Information exchange system based on audio frequency
12/12/2012CN102820933A Underwater sound MODEM (modulator-demodulator) for underwater interphone
12/12/2012CN101873177B Sound wave communication method through drill rod
12/12/2012CN101471734B Multi-transmission multi-receive acoustic positioning network system and positioning method thereof
12/11/2012US8331194 Underwater acoustic waveguide
12/06/2012WO2012166583A1 Wireless power transfer
12/06/2012WO2012097375A3 Apparatus, system and method for underwater voice communication by a diver
12/06/2012US20120307596 Systems, methods, and apparatus to drive reactive loads
12/06/2012CA2836784A1 Wireless power transfer
12/05/2012EP2530552A1 Physical presence digital authentication system
12/05/2012CN202586954U 360-degree ultrasonic wave emission receiving device
12/05/2012CN102812651A Sending device
11/2012
11/22/2012WO2012158057A1 Electronic transactions with mobile communications devices via encoded acoustic signals
11/15/2012DE102011101547A1 Method for communication of data and information between independent submarine vehicles e.g. submarine boats, by using telephones, involves terminating alteration of emission direction of signal if vehicle receives acknowledgment signal
11/14/2012CN101471733B Single-focus phase-control focusing ultrasonic transmission device
11/06/2012US8306097 Signal suspension and resumption in DSL systems
11/01/2012WO2012148805A2 Acoustic transponder for monitoring subsea measurements from an offshore well
11/01/2012US20120275274 Acoustic transponder for monitoring subsea measurements from an offshore well
10/2012
10/31/2012EP2518721A1 Data receiving error reduction system and method in audio frequency band sound communication, and device applied thereto
10/24/2012CN102752058A Audio data transmission system, audio data transmission device and electronic sign tool
10/17/2012EP2510744A2 Method for transmitting object between devices having multi-radio interface
10/17/2012CN102739320A Method, system and device for transmitting audio data and electronic signature tool
10/11/2012WO2012136112A1 Near field communication terminal, near field communication establishment method, and data transmission method
10/11/2012DE102011016083A1 Method for transmitting modulated radio frequency (RF) signals from transmitting station through RF-proof wall to receiving station, involves transforming data signals into waveform to overcome wall by overlay/Heterodyn transponder
10/11/2012DE102011016082A1 Method for adapting operating frequencies of wireless unit e.g. passive superposition transponder used in radio frequency identification application, involves using signal with frequency by units for forming signal overlaps or mixed signals
10/04/2012WO2012131601A1 Wireless network discovery and path optimization algorithm and system
10/03/2012CN202475435U Ultrasonic liquid pipeline data transmission system
10/03/2012CN101641891B Modulation device, demodulation device, and acoustic signal transmission method
10/02/2012US8280313 Base station selecting method and wireless terminal device
09/2012
09/27/2012WO2012128403A1 Hull communication network of ship using ultrasonic waves, and communication method thereof
09/22/2012CA2770788A1 Method and apparatus for controlling laser transmissions for enhanced safety
09/11/2012US8265893 Digital reordering unit, ultrasonic front-end device and operating method thereof
09/05/2012CN102655507A Information safety device and system and implementation method
09/04/2012US8260204 Wireless communication system using surface acoustic wave (SAW) second harmonic techniques
08/2012
08/30/2012US20120218865 Towed Array Sonar System and Method for Carrying out a Sonar Mission with such a Towed Array Sonar System
08/29/2012CN202406118U Intelligent cipher key and electronic transaction system
08/28/2012US8254210 High fidelity data compression for acoustic arrays
08/23/2012US20120213034 Apparatus, system and method for underwater signaling of audio messages to a diver
08/23/2012US20120213031 Networked sonar observation of selected seabed environments
08/23/2012US20120212350 Underwater tethered telemetry platform
08/23/2012DE102007038419B4 Vorrichtung und Verfahren zur Übertragung von Messdaten Device and method for transmission of measurement data
08/14/2012US8243552 Ultrasound emission deratization method and device
08/09/2012WO2012104602A1 Arrangement and method of mounting an active element on a solid substrate
08/01/2012EP2482276A1 Arrangement and method of mounting an active element on a solid substrate
08/01/2012CN102625072A TV and audio signal transmission device and method
07/2012
07/26/2012US20120188848 Ultrasonic underwater pager
07/25/2012CN102612812A Communication system using ultrasonic waves
07/25/2012CN102611658A Multi-channel sound wave communication system and method
07/25/2012CN102610890A Millimeter wave waveguide communication system
07/19/2012WO2012097375A2 Apparatus, system and method for underwater voice communication by a diver
07/19/2012WO2012096626A1 Audio apparatus
07/19/2012US20120182836 Communication system using ultrasonic waves
07/18/2012CN102594461A Combined modulation ultrasonic pulse transceiving method and device
07/17/2012US8223592 Omni-directional acoustic radiator with radial waveguides for submersible multi-transducer array
07/11/2012EP2474112A1 Acoustic transmission
07/11/2012EP2474111A1 Acoustic transmission
07/11/2012CN102571214A Sound wave communication system and communication method applied to same
07/10/2012US8218398 Omni-directional radiator for multi-transducer array
07/05/2012US20120171963 System and method for using ultrasonic communication
07/05/2012US20120170421 Underwater communications
07/05/2012US20120170420 Underwater communications
07/05/2012US20120170419 Underwater communications
07/05/2012US20120170418 Underwater communications
07/05/2012US20120170417 Underwater communications
07/05/2012US20120170416 Underwater communications
07/05/2012US20120170415 Underwater communications
07/05/2012US20120170414 Acoustic signal detector
07/04/2012CN102546032A Wireless transmitting and receiving method, wireless transmitting and receiving device, wireless communication method and wireless communication system
07/04/2012CN102546031A Wireless power transmission system, wireless power transmitting apparatus and wireless power receiving apparatus
07/04/2012CN101309119B Underwater acoustic carrier communication system comprising underwater acoustic communication water collecting controller
06/2012
06/28/2012WO2012087157A1 Locator device with noise suppression
06/28/2012WO2012085630A1 Marine antifouling resonance system
06/27/2012CN102523057A Method for calibrating sound pressure in low-frequency sound wave free field
06/26/2012US8208345 Personal water safety device and method thereof
06/21/2012WO2012024769A3 System and method for sharing information between two or more devices
06/21/2012US20120155221 Acoustic transmission
06/20/2012CN101147343B Method for multi-carrier packet communication with reduced overhead
06/14/2012WO2012036593A3 Apparatus and method for remotely setting motion vector for self-propelled toy vehicles
06/14/2012US20120151515 Physical presence digital authentication system
05/2012
05/29/2012US8188709 Power transmission control device, power transmitting device, non-contact power transmitting system, and electronic instrument
05/24/2012US20120130719 Remote control signaling using audio watermarks
05/16/2012CN102457332A 移动终端定位方法、设备和系统 Mobile terminal positioning method, apparatus and system
05/10/2012WO2012061137A2 Building a three dimensional model of an underwater structure
05/10/2012DE102011075739A1 Communication system has telephone apparatus that outputs specific sound signal to hearing apparatus at the time of guiding telephone conversation
05/10/2012CA2814844A1 Building a three dimensional model of an underwater structure
04/2012
04/26/2012WO2012052246A1 Device for monitoring a pump
04/26/2012US20120099402 Building a three-dimensional model of an underwater structure
04/25/2012EP2445126A1 Communication method for portable terminal
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