| Patents for H04B 11 - Transmission systems employing ultrasonic, sonic or infrasonic waves (1,545) |
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| 10/29/2009 | US20090268559 Thermoacoustic device |
| 10/29/2009 | US20090268558 Thermoacoustic device |
| 10/29/2009 | US20090268554 Underwater sound projector system and method of producing same |
| 10/28/2009 | CN101567820A Energy-saving medium access control method in underwater acoustic network |
| 10/22/2009 | WO2009127376A1 Device and method for transmitting information in solid media |
| 10/01/2009 | US20090245025 Underwater communications |
| 10/01/2009 | DE102009010055A1 Virtuelles Mikrofon mit fremdmoduliertem Ultraschall Virtual Microphone with fremdmoduliertem ultrasound |
| 09/29/2009 | US7596228 Parametric array modulation and processing method |
| 09/03/2009 | WO2009106880A1 Acoustic multi-carrier modulation communication scheme and device therefor |
| 09/03/2009 | US20090219786 Modem and method for transmitting data in a medium notably such as air and water |
| 09/03/2009 | US20090219785 Method and system for determining the location and/or speed of at least one swimmer |
| 08/27/2009 | US20090213697 Wireless communication system, transmitting device, receiving device and information processing apparatus |
| 08/13/2009 | US20090201766 Underwater detector |
| 08/13/2009 | US20090201763 Airborne Laser-Acoustic Mine Detection System |
| 07/30/2009 | DE102005015067B4 Torantriebssystem sowie Einlernverfahren hierfür Torantriebssystem and programming process therefor |
| 07/09/2009 | US20090175129 Ultrasound emission deratization method and device |
| 07/09/2009 | US20090175127 Multibeam sounder |
| 07/01/2009 | CN101471734A Multi-transmission multi-receive acoustic positioning network system and positioning method thereof |
| 07/01/2009 | CN101471733A Single-focus phase-control focusing ultrasonic transmission device |
| 06/25/2009 | WO2009024784A3 Ultrasound detectors |
| 06/11/2009 | US20090147624 Sound Collection Environment Deciding Device, Sound Processing Device, Electronic Appliance, Sound Collection Environment Deciding Method and Sound Processing Method |
| 06/03/2009 | EP2063785A2 System and method for acoustic information exchange involving an ingestible low power capsule |
| 06/03/2009 | EP2063766A2 Ingestible low power sensor device and system for communicating with same |
| 05/27/2009 | CN100492941C Method and system for access wide area computer network information and/or data |
| 05/21/2009 | US20090129204 Apparatus, Systems and Methods For Enhanced Multi-Carrier Based Underwater Acoustic Communications |
| 05/14/2009 | WO2009061562A2 Subsea operations support system |
| 05/13/2009 | EP2057505A2 Method of contructing mathematical representations of objects from reflected sonar signals |
| 05/13/2009 | CN101430381A Ultrasonic wave transmitting-receiving node and its implementing method |
| 05/13/2009 | CN101427926A Electronic system receiving module and received signal conformance error compensation method |
| 05/07/2009 | US20090114140 Subsea operations support system |
| 05/06/2009 | CN101425853A Remote speech monitoring method |
| 04/22/2009 | CN100481754C Wireless communication system, wireless microphone and controlling method thereof |
| 04/09/2009 | US20090092002 Acoustic communication and control for seismic sensors |
| 04/09/2009 | US20090090199 Dive computer with global positioning system receiver |
| 04/07/2009 | US7515019 Non-contact position sensor with sonic waveguide |
| 03/24/2009 | CA2508156C Sonar transmitter |
| 03/19/2009 | WO2005046107A3 A system and method for encoding and decoding digital data using acoustical tones |
| 03/18/2009 | CN101390315A Acoustic signal transmission system, modulation device, demodulation device, and acoustic signal transmission method |
| 03/17/2009 | US7505823 Acoustic communication system |
| 03/17/2009 | US7505367 System and method for using acoustic field parameters for communication |
| 03/17/2009 | US7505366 Method for linear optoacoustic communication and optimization |
| 03/17/2009 | US7505364 Underwater navigation by aided light sensor |
| 03/12/2009 | WO2008157609A3 Apparatus, systems and methods for enhanced multi-carrier based underwater acoustic communications |
| 03/12/2009 | US20090067289 Communicating using sonar signals at multiple frequencies |
| 03/05/2009 | WO2009027639A1 Underwater communications |
| 03/05/2009 | DE102007041480A1 Vehicle i.e. car, communication system, has transmitter injecting information into cable by ultrasonic signals, and receivers receiving ultrasonic signals that are injected into cable, where cable connects transmitter with receivers |
| 03/05/2009 | CA2698310A1 Underwater communications |
| 03/05/2009 | CA2639113A1 Method and apparatus for controlling access and presence information using ear biometrics |
| 03/04/2009 | CN101378293A Method and apparatus for measuring network node of underwater sensor |
| 03/03/2009 | US7498946 Ultrasonic transmitter and receiver systems and products using the same |
| 02/26/2009 | WO2009024784A2 Ultrasound detectors |
| 02/26/2009 | DE102007038419A1 Measurement data transmission device, has converter e.g. electroacoustic converter, provided inside of housing for producing acoustic waves, and modulator modulating signals produced by sensor to acoustic waves |
| 02/26/2009 | CA2715663A1 Ultrasound detectors |
| 02/25/2009 | CN101374181A Ultrasonic anti-stealing device for mobile phone |
| 02/24/2009 | US7496002 Water submersible electronics assembly and methods of use |
| 02/24/2009 | US7496000 Water submersible communications devices and methods for using the same |
| 02/19/2009 | WO2009023008A1 Miner acoustic communication and location system |
| 02/19/2009 | WO2009022926A1 Diver monitoring and communication system |
| 02/19/2009 | CA2696506A1 Diver monitoring and communication system |
| 02/17/2009 | US7493089 Calibrating a communication link using frequency ramps |
| 02/12/2009 | US20090041145 Method to detect data transmitted from multiple antennas and system thereof |
| 01/28/2009 | CN101356751A Improvements in data communications |
| 01/27/2009 | US7482729 Hypersonic transducer |
| 01/22/2009 | US20090022340 Method of Acoustic Wave Generation |
| 12/31/2008 | WO2008112006A3 Method of contructing mathematical representations of objects from reflected sonar signals |
| 12/31/2008 | CN201174703Y Underwater communication equipment |
| 12/25/2008 | US20080316862 Point Source Localization Sonar System and Method |
| 12/23/2008 | CA2260458C Downhole telemetry system and method for remote communication |
| 12/16/2008 | US7466629 Manually agitated underwater signaling device |
| 12/11/2008 | WO2008149856A1 Modulation device, demodulation device, and acoustic signal transmission method |
| 12/11/2008 | US20080304362 Inter-diver signaling device and process |
| 12/10/2008 | EP1307760B1 Navigating acoustic device for skin diving |
| 12/03/2008 | EP1998476A1 Acoustic signal transmission system, modulation device, demodulation device, and acoustic signal transmission method |
| 11/20/2008 | WO2008140443A1 Sonar dome |
| 11/20/2008 | US20080285777 Parametric audio system |
| 11/19/2008 | CN101309119A Underwater acoustic carrier communication system comprising underwater acoustic communication water collecting controller |
| 11/13/2008 | US20080279047 System and method for underwater wireless communication |
| 11/06/2008 | WO2007115178A3 Swimmer detection sonar network |
| 11/05/2008 | EP1386415A4 Parametric virtual speaker and surround-sound system |
| 11/04/2008 | US7447117 Correlation based decision-feedback equalizer for underwater acoustic communications |
| 10/16/2008 | US20080253231 Functional actuator-sensor path optimization in structural health monitoring system |
| 10/09/2008 | US20080247275 Underwater detection apparatus |
| 10/02/2008 | US20080239875 Surveying Method Using an Arrangement of Plural Signal Sources |
| 09/25/2008 | WO2008115312A2 Wireless ultrasound transducer using ultrawideband |
| 09/18/2008 | US20080225643 Water submersible electronics assembly and methods of use |
| 09/12/2008 | WO2008109267A1 System and method for performing channel estimation using interpolation |
| 09/03/2008 | EP1964292A1 Improvements in data communications |
| 08/27/2008 | EP1961138A1 Doppler tracking method and device for a wide band modem |
| 08/21/2008 | US20080198695 System and method for using acoustic field parameters for communication |
| 08/20/2008 | CN101247183A Transmission device, receiving device, system and method for implementing communication based on ultrasonic wave |
| 08/20/2008 | CN100413231C Bluc tooth connector |
| 08/19/2008 | US7415407 Information transmitting system, information encoder and information decoder |
| 08/14/2008 | US20080192576 Water submersible communications devices and methods for using the same |
| 08/13/2008 | CN101243364A Automation network field device using ultrasound communication link |
| 08/05/2008 | US7408842 Sonar dome |
| 08/05/2008 | US7408841 System and method for calculating the directivity index of a passive acoustic array |
| 07/31/2008 | US20080183716 Method and system for accessing information and/or data available on a wide area computer network |
| 07/23/2008 | EP1947793A1 Modulation device, modulation method, demodulation device, and demodulation method |
| 07/09/2008 | CN101218768A Modulation device, modulation method, demodulation device, and demodulation method |
| 07/03/2008 | US20080159571 Miniature Surround-Sound Loudspeaker |