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8995230 Method of extracting zero crossing data from full spectrum signals  
Methods and apparatus for using Fourier techniques to detect and isolate the fundamental frequency sweep of echolocation calls produced by bats, or of other narrow-band whistles as produced by...
8983093 Electronic device circuitry for communicating with accessories  
Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons...
8862156 System effective to demodulate a modulated code and provide content to a user  
A system and method effective to provide content to a user. The system may include a sound device, a smart phone, and a processor. The sound device may produce a modulated code where different...
8792305 Ultrasound detectors  
A method of receiving data coded on an ultrasonic signal comprising: detecting said ultrasonic signal using a microphone (4) having its greatest response below 20 kilohertz or a microphone (4)...
8718939 Method and apparatus for three dimensional dynamic measurements in water system  
Techniques for measuring one or more physical properties of a water system. A measurement platform is positioned at a first location of a given water system, wherein the measurement platform...
8711656 Sonic fast-sync system and method for bluetooth  
A method, apparatus and computer program product for fast-synching a wireless Bluetooth connection using a first device's wireless identifier is provided. One implementation of the present...
8693288 Method for detecting a random process in a convex hull volume  
A method is provided for characterizing data sets containing data points. The method can characterize the data sets as random or as non-random. In the method, a convex hull envelope is constructed...
8674824 Sonar sensor array and method of operating same  
A sonar sensor array is provided that has reduced power consumption, data bandwidth and data storage requirements. The sensor array may be configured to a sleep mode, low-resolution mode and...
8641197 Acoustical receiver and pen transcription system adapted for rejecting virtual pen images  
An acoustical receiver for detecting an acoustical signal characterized by a wavelength and a pen transcription system utilizing the same are disclosed. The receiver includes a detector that...
8634275 Audio processing device  
In an audio processing device, a target sound emphasizer generates a target sound emphasized component by emphasizing a target sound component contained in a plurality of audio signals generated...
8630148 Systems, methods, and apparatus to drive reactive loads  
Systems, methods, and apparatus to drive reactive loads are disclosed. An example apparatus to drive a reactive load includes a reactive component in circuit with the reactive load, a first...
8599647 Method for listening to ultrasonic animal sounds  
A method for listening to ultrasonic animal sound signals comprises: obtaining a plurality of input samples at an input sample rate, the plurality of input samples including at least one sequence...
8565042 System and method for reducing data reception error in acoustic communication in audible frequency range, and apparatus applied thereto  
Provided is a data reception error reduction system and method in acoustic communication in audible frequency range, and an apparatus applied thereto. The data reception error reduction system in...
8514662 Sonic receiver and method for receiving data that uses modulation frequncies that reduce the probability of conflict with ambient noise in the environment  
A method, apparatus and computer program product is provided for wirelessly transmitting and receiving data through sonic communication. A method and system is provided for devices to exchange...
8514661 Transducer  
A transducer for converting an input signal fed to a first input (2) into a corresponding electric output signal that is output via an output (3). The input signal can be processed via an analog...
8451143 Vehicle presence notification apparatus  
A vehicle presence notification apparatus notifies a presence of a vehicle by providing easily-perceivable and less uncomfortable notification sound outside of the vehicle. The vehicle presence...
8411531 Modulation device, demodulation device, and acoustic signal transmission method  
A modulation device, a demodulation device, and a transmission system and acoustic signal transmission method using them which can carry out a synchronization process for data signals without...
8405524 Seismic method for vehicle detection and vehicle weight classification  
A system is provided for detecting the passage of vehicles and the classification thereof by weight using geophone outputs and a unique density measurement in which the number of peaks of the...
8406270 Quadrature demodulation with phase shift  
A quadrature demodulator preweights an input signal prior to mixing with in-phase and quadrature clock signals. In an implementation with discrete phase rotation, a series of weighting circuits...
8401569 System effective to demodulate a modulated code and provide content to a user  
A system and method effective to provide content to a user. The system may include a sound device, a smart phone, and a processor. The sound device may produce a modulated code where different...
8368553 Fracturing monitoring within a treatment well  
A method includes receiving a signal from a sensor that is positioned within a well bore during a hydraulic fracturing operation. A noise canceling operation is performed on the received signal to...
8326542 Method and system for retrieving seismic data from a seismic section in bitmap format  
A computer implemented method for retrieving seismic data from a seismic section provided in a bitmap format. The method includes reconstructing a two dimensional matrix of seismic interpolated...
8319640 Method for maintaining a shipping container manifest  
A system, method, and apparatus for monitoring and detecting movement of components of a shipping container latch. A latch monitor may embody an electromagnetic sensing unit and a nearby magnet or...
8174935 Adaptive array control device, method and program, and adaptive array processing device, method and program using the same  
[Object] To provide an adaptive array control method, device, and program, and an adaptive array processing method, device, and program, capable of performing accurate coefficient update control...
8154588 Participant audio enhancement system  
A system of microphones, signal processors, and loudspeakers provides enhanced comprehension of speech in noisy social events where the locations of participants are relatively constrained. Speech...
8107322 Device and method for attenuating an anti-resonant circuit  
A device for the attenuation of an anti-resonant circuit which has a first capacitor and a secondary inductance. A signal is able to be coupled into the anti-resonant circuit via a primary...
8072842 Channel impulse response estimation  
A method of estimating the impulse response of a channel is disclosed. The method includes transmitting an impulse signal to the channel, detecting a received signal from the channel at a...
8073634 Method to extract target signals of a known type from raw data containing an unknown number of target signals, interference, and noise  
A signal analysis method extracts transient target signals of known type from a raw data source signal that contains an unknown number of target signals. The method can enhance the analysis of...
8073294 Remote optical fiber surveillance system and method  
In accordance with one aspect of the disclosed technology, wireless communications are used in a fiber surveillance system to enable monitoring of remote locations for vibrations, acoustic...
8059488 Method for operating an ultrasonic sensor, and corresponding ultrasonic sensor  
In a method for operating an ultrasonic sensor in duplex mode, a transmission trigger for triggering an acoustic transmitted signal is transmitted from a control device for controlling the...
8014230 Adaptive array control device, method and program, and adaptive array processing device, method and program using the same  
To provide an adaptive array control device, method, and program adapted to be able to output an enhanced target signal by precisely carrying out a coefficient update control of a plurality of...
7944775 Adaptive array control device, method and program, and adaptive array processing device, method and program  
[Object] By enabling accurate coefficient update, a high-quality array processing output which is less influenced by frequency characteristics and incoming directions of input signals control can...
7929376 Method and apparatus for identifying noise sources  
A computer implemented method and apparatus for identifying component breakdown of noise sources. Noise data is received for a noise source from an array of sound sensors. Measurement points of...
7912225 Generating 3D audio using a regularized HRTF/HRIR filter  
3D sound is generated using an improved HRTF modeling technique for synthesizing HRTFs with varying degrees of smoothness and generalization. A plurality N of spatial characteristic function sets...
7890280 Method and a system for determining a physical property as a function of position  
A method and system for determining a physical property as a function of position. A data series including data point from one or more channels is obtained by frequency modulation continuous wave....
7844406 Level measurement system  
To provide a simpler and less expensive system for multipoint level measurement, a level measurement system with at least two sensor devices operating in accordance with the pulse-echo principle...
7839721 Modal beam processing of acoustic vector sensor data  
The present invention, as typically embodied, represents a novel methodology for effecting linear processing of output signals that are received from one or more acoustic vector sensors. First, as...
7821870 Method and system for identifying moving objects using acoustic signals  
An acoustic tone at a predetermined frequency is detected after being reflected and modulated by an unknown moving object. Acoustic features are extracted from the reflected acoustic tone using...
7782710 System for detecting, tracking, and reconstructing signals in spectrally competitive environments  
A method and system for determination of the trajectory, miss distance, and velocity of a projectile using an antenna array. The present invention also includes a method and system for extracting...
7768876 Channel impulse response estimation  
A method of estimating the impulse response of a channel is disclosed. The method includes transmitting an impulse signal to the channel, detecting a received signal from the channel, and...
7746225 Method and system for conducting near-field source localization  
Disclosed herein is a fast method that locates nearby sources based solely on the time-of-flight of a signal across an array of sensors. The time delay for signal passage between all pairs of...
7740586 Ultrasonic signal processor for a hand held ultrasonic diagnostic instrument  
A hand held ultrasonic instrument is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array mounted in a hand-held enclosure, with...
7679998 System for detecting, tracking, and reconstructing signals in spectrally competitive environments  
A system applicable to acoustic, seismic, electromagnetic, hydrodynamic, and shock waves utilizing a map between signal time series and signal vectors defining the mathematical wave field model...
7656750 Echo detection  
An echo detection circuit that detects an echo by detecting the magnitude of a digitally mixed representation of the received acoustic signal and reference sine and cosine signals. That magnitude...
7650208 Navigational aid for diver  
A diver unit computes the direction and distance to a specified target. When the target is obstructed, the diver unit receives navigation assistance data from another diver unit. The navigation...
7646676 Synchronous re-sampling based signal extraction  
Sampling of a captured signal is synchronized to a tonal which may be unstable in frequency detected in the signal to cause it and all of its harmonics, sub-harmonics and fundamental to appear to...
7586813 Signal processing apparatus for an ultrasound transducer, ultrasound receiver and method for operating an ultrasound receiver  
To reduce signal interference and improve the signal-to-noise ratio in the transmitted signal, the analog signals produced by an ultrasound transducer are promptly digitized. In accordance with...
7583562 Transducer circuit coupled to a control unit through a cable  
The transducer circuit includes a transducer component, a drive circuit for the transducer component, a control port for coupling the drive circuit to a control unit and a modulator. The modulator...
7433267 Two wire resistive sensor  
A circuit with two terminals that receive an input current. The circuit includes a sensor, and a controller to generate a modulated signal. The circuit also includes a flyback circuit that...
7411866 User interface containing acoustic sensing modules  
The present invention relates to a user interface system that is acoustically operated for the control of connected devices. Through the interface, acoustic sounds, such as tap, can be...

Matches 1 - 50 out of 353 1 2 3 4 5 6 7 8 >