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6845164 
Method and device for separating a mixture of source signals
Device and method for separating a mixture of source signals to regain the source signals, the device and method being based on measured signals, the invention comprises: bringing each measured... 

6845341 
Method and mechanism for improved performance analysis in transaction level models
A method and mechanism for performing improved performance analysis upon transaction level models. A system block may be modeled using transaction model at different levels of abstraction. A... 

6826513 
Method and apparatus for online identification of safe operation and advance detection of unsafe operation of a system or process
A method and apparatus for online identification of safe operation and advance detection of unsafe operation of systems or processes from signals containing noise wherein the method and apparatus... 

6823292 
Tuneable filter
A tuneable filter, for example an antenna filter in a single chip radio receiver, comprises a frequency selective circuit (12) including passive reactive components. At least some of the reactive... 

6810351 
Position detector
A position detector includes a position indicator. Transmission/reception of electromagnetic waves relative to the position indicator is performed at least twice while the same loop coil is being... 

6810366 
Method and apparatus for filtering a signal using a deadband
The present invention provides apparatuses and methods for filtering a signal. A first processing device receives a first control signal and a first feedback signal and transmits a first error... 

6810335 
Qualifier
This qualifier uses multiple thresholds and multiple timers to perform its operations. This assembly qualifier is a counting apparatus that monitors either the pressure of a pulsing air tool. The... 

6807517 
Method to estimate the parameters of a propagation channel
A method for estimating one or more parameters of a propagation channel, with a priori knowledge of at least one signal, in a system having one or more sensors. The method includes correlating one... 

6799128 
Measurement system for sampling a signal and evaluating data representing the signal
A measurement system for analyzing data values that are stored in memory and that represent a sampled electrical signal under analysis (SUA). Each of the data values represents the SUA at... 

6782353 
Instrument for measuring characteristic of data transmission system with high accuracy and clock reproducing circuit used therefor
The present invention provides a measuring device which extracts, from an inputted data signal, a clock signal in which there is little internal occurrence of absence or phase fluctuations, and... 

6772100 
Multipath mitigation filter
A technique for estimating the position of an object from sensor measurements in the presence of multipath conditions is disclosed. In one aspect, the technique includes a position estimator... 

6763318 
Distance sensor with a compensation device for an angle misalignment on a vehicle
A distance sensor having a sensor for a motor vehicle in which an arrangement is provided by which gnment angles and trajectory curvatures can be compensated for during travel not only on a... 

6763323 
Resolution filter for a spectrum analyzer
A spectrum analyzer comprises a mixer, which mixes complex conjugate input signal v*(t) into a base band signal x(t) and a resolution filter, which filters the base band signal for narrow band. In... 

6754543 
Method and arrangement for calibration of input data
NIR spectra are often preprocessed in order to remove systematic noise such as baseline varation and multiplicative scauer effects. This is done by differentiating the spectra to first or second... 

6754598 
Electromagnetic interference analysis method and apparatus
A method of analyzing an electromagnetic interference amount of an LSI includes an equivalent impedance information calculating step of calculating and estimating equivalent impedance information... 

6751578 
Method and apparatus for evaluating a digital information signal
An apparatus and method for evaluating a digital information signal to be transmitted. A superimposition of the information with an interference signal can endanger an errorfree data... 

6721770 
Recursive state estimation by matrix factorization
A filter is disclosed for recursive state estimation of a process by matrix factorization. The filter preferably takes the general form of P=XY, where P is a matrix of previous state and/or... 

6721693 
Processing device comprising a covariance matrix correction device
The correction device comprises a block for decomposition into total proper elements, according to the Kato spectral decomposition method, of the covariance matrix to be corrected. The block... 

6714894 
System and method for collecting, processing, and distributing information to promote safe driving
A system and methods that allow for the collection, processing, and distribution of information to promote driver safety. In an illustrative implementation, a computing application is provided... 

6697767 
Robust process identification and autotuning control
This invention provides a novel process identification and control package for high performance. For process identification, a simple yet effective and robust identification method is presented... 

6697768 
Adaptive method and apparatus for transmission line analysis
A method and system for performing sequence time domain reflectometry to determine the location of line anomalies in a communication channel is disclosed. In one embodiment, the system generates a... 

6694279 
Methods, apparatus, and computer program products for determining structural motion using mode selective filtering
Movement of a structure, such a conduit of a Coriolis mass flowmeter, is estimated. A plurality of motion signals representing motion of the structure are mode selective filtered to generate a... 

6691073 
Adaptive state space signal separation, discrimination and recovery
This invention unifies a set of statistical signal processing, neuromorphic systems, and microelectronic implementation techniques for blind separation and recovery of mixed signals. A set of... 

6680607 
Method of detecting steadystate convergence of a signal
A method for detecting steadystate convergence of a signal compares a filtered version of the signal or its derivative to a threshold over a given time interval, and a measure of the signal... 

6681199 
Peak time detecting apparatus and method
A productsum operation portion for performing a productsum operation (wavelet transformation) with respect to an input timeseries signal by using as a base of integral a complex function in... 

6681200 
Method for measuring system clock signal frequency variations in digital processing systems
A method for measuring system clock signal frequency variations is disclosed, whereby the number of search operations can be limited to log2n, where n is the number of elements (signal values)... 

6674518 
Method and apparatus for optical time domain reflectometry (OTDR) analysis
The present invention is directed to a method and apparatus for testing a fiberoptic cable. An Optical Time Domain Reflectometer (OTDR) is presented. Test signals are generated from the OTDR and... 

6671633 
Modular monitoring and protection system with automatic device programming
Monitoring modules of a monitoring and protection system are disposed in groups proximate to points of interest in a machine system where dynamic operating conditions are monitored. A master... 

6671663 
Time domain noise analysis
A circuit simulator is provided for simulating the operation of a circuit in the time domain by accounting for the physical fluctuation (noise) in the time domain. Each of the components (14) in... 

6665622 
Spectral characterization method for signal spectra having spectrallyseparated signal peaks
A spectral characterization method accurately characterizes an applied signal spectrum that has multiple, spectrallyseparated signal peaks. The method detects signal peaks within the spectrum and... 

6658370 
Adaptive servo motor retuning method and system
A method and system are invented for adaptively and automatically retuning a closedloop servo motor that is operating within normal limits. A first active set of configurable tuning constants is... 

6651036 
RMStoDC converter with fault detection and recovery
A circuit that provides the rootmeansquare (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes... 

6651012 
Method and apparatus for trending and predicting the health of a component
Disclosed are techniques used in connection with determining a health indicator (HI) of a component, such as that of an aircraft component. The HI is determined using condition indicators (CIs)... 

6640205 
Method and device for investigating and identifying the nature of a material
The method of and a device for using this method, on equipment or assigned to equipment for working a material, for investigating and identifying the nature of the material, which is to be worked... 

6633835 
Prioritized data capture, classification and filtering in a network monitoring environment
A system, method and computer program product are provided for adaptive priority data filtering. Data is collected from a network segment and classified into multiple flows. The flows are... 

6630820 
Method and apparatus for measuring the instantaneous frequency of FM signals
A method and an apparatus for measuring the instantaneous frequency of FM modulated signals, includes sampling, instantaneous frequency computing, and lowpass filtering. FM modulated signal are... 

6629063 
Amplitude temporal order dependent adaptive processor
An acoustic signal processor that samples acoustic data, performs a spectrum analysis of the sampled acoustic data, stores the acoustic data in corresponding frequency bins, and then filters... 

6629041 
Methods to significantly reduce the calibration cost of multichannel measurement instruments
The prior art knows two different approaches to calibration of multichannel instruments, viz., the socalled physical and statistical calibration methods. The new methods translate the difficult... 

6625569 
Realtime spatiotemporal coherence estimation for autonomous mode identification and invariance tracking
A general method of anomaly detection from timecorrelated sensor data is disclosed. Multiple timecorrelated signals are received. Their crosssignal behavior is compared against a fixed library... 

6622117 
EM algorithm for convolutive independent component analysis (CICA)
In connection with blind source separation, proposed herein, inter alia, are: expectationmaximization equations to iteratively estimate unmixing filters and source density parameters in the... 

6622118 
System and method for comparing signals
A method and system that include a first measurement signal and a second measurement signal that can be input to first and second filters. The filters can be subject to a first constraint to... 

6611794 
Signal amplitude restoration apparatus and method
An apparatus for signal amplitude restoration has a received signal input and a scaled received signal output. An amplitude correction factor generator has an estimated signaltonoise power ratio... 

6598014 
Closedloop multistage beamformer
A system and method of tracking ambient signals, detecting or receiving desired signals, and suppressing undesired signals. An array of sensors receives ambient signals and generates N channels of... 

6598013 
Method for reducing crosstalk within DNA data
Raw DNA data is filtered with a multicomponent analysis that is applied to the difference of the signal intensity on each of the raw DNA data signals to remove cross talk between the signals. The... 

6594613 
Adjustable bandwidth filter for process variable transmitter
A process variable transmitter providing a transmitter output representing a process variable sensed by a sensor. The transmitter has a filter with a bandwidth which is automatically adjusted... 

6594592 
Method and device for determining the torque of an induction machine
In a method and device for determining the torque of an induction machine, stator terminal voltages and the stator terminal currents are integrated and then highpass filtered to determine a space... 

6591230 
Coprocessor for synthesizing signals based upon quadratic polynomial sinusoids
A coprocessor (15) for synthesizing a signal from the sum of sinusoids preferably includes an electronic system (20) having a host processor (12) that forwards frame boundary parameters to the... 

6584434 
Method for data filtering and anomoly detection
A method for low pass filtering data used in changedetect compression of data collected from a system includes buffering the data from said system. Rolling averages of the buffered data are... 

6577990 
Method for determining launch system velocity, acceleration and displacement certification parameters
A method is provided to process system test data to determine certification parameters of the system based on the test data. For a torpedo launch system, the velocity data is generated by a... 

6577977 
Process parameter sensor apparatus, methods and computer program products using force filtering
A process parameter associated with a material contained in a vibrating structure is estimated. A plurality of motion signals representing motion at a plurality of locations of the vibrating... 