172346 ⎘
Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves; Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
Sub-classes:AUDIO PROCESSING
#2METHOD FOR DIRECTING USER AND ELECTRONIC DEVICE
#3Acoustic vector sensor
#4DETECTION DEVICE AND DETECTION SYSTEM
#5Audio processing of multi-channel audio signals
#6Acoustic vector sensor
#7Underwater ultrasonic device
#8Method for establishing the presence of a misalignment of at least one sensor within a sensor group
#9Methods and systems for sound source locating
#10Methods and systems for sound source locating
#11Wave source direction estimation apparatus, wave source direction estimation system, wave source direction estimation method, and wave source direction estimation program
#12Sound direction detection sensor including multi-resonator array
#13Remote control with presence sensor
#14Correlation-based near-field detector
#15Method for determining the direction of a source of waterborne sound, a computer program product, a computer or sonar, and a watercraft
#16Speech recognition
#17Folded transducer array for compact and deployable wave-energy guiding system
#18Microphone support device for sound source localization
#19System and method for processing control commands in a voice interactive system
#20ELECTRONIC DEVICE AND CONTROL METHOD FOR ELECTRONIC DEVICE
#21Processing signals
#22Filtering discrete time signals using a notch filter
#23Method for identifying gas leaks using a stationary seabed placed steered beamformed acoustic antenna with active narrow beam transmitter interrogation capability
#24METHOD AND APPARATUS FOR LOCATING A TALKER
#25Beam rejection in multi-beam microphone systems
#26Beam rejection in multi-beam microphone systems
#27Beam rejection in multi-beam microphone systems