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7620524 |
Method for reconstructing an electrical signal
A method for reconstructing an electrical signal in which the signal and a second signal, which is related to the first signal according to a predefined function, are sampled at a predefined...
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7596472 |
Device for synthesis of a composite digital signal with explicit control of the first three moments thereof
The device determines the weighting coefficients to be applied to N digital source signals to form a composite signal. The first- to third-order moments of the composite signal must respectively...
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7574333 |
Apparatus and method for modeling relationships between signals
A projection is associated with a first signal and a second signal. The second signal includes a first portion associated with the first signal and a second portion not associated with the first...
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7533000 |
Method and apparatus for analysing a dataset of spectra
A method of analyzing a dataset of spectra is provided in which each spectrum has a count value for each of a number of parameter values within a parameter range. The method is for identifying one...
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7392161 |
Identifying a state of a system using an artificial neural network generated model
The state or condition of a system may be evaluated by comparing a set of selected parameter values, converted into a trial vector, with a number of model or exemplar vectors, each of which was...
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7363200 |
Apparatus and method for isolating noise effects in a signal
A matrix includes samples associated with a first signal and samples associated with a second signal. The second signal includes a first portion associated with the first signal and a second...
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7299161 |
Decorrelation of signals
A method of strongly decorrelating signals comprising processing input signals to determine delay and rotation parameters which implement at least one elementary paraunitary matrix. The parameters...
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7248975 |
Real time monitoring of particulate contamination in a wafer processing chamber
An apparatus and method for use is described which permits real time monitoring of build-up of particulate contamination in a wafer processing chamber. The apparatus is capable of monitoring...
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7246021 |
Automatic front light optical axis direction adjusting system for vehicles
The directions of optical axes of headlights of a vehicle are adjusted based on a steering angle by switching filters of different response speed characteristics. The filters are provided with...
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7212956 |
Method and system of representing an acoustic field
A method of representing a sound field includes the steps of acquiring measurement signals (c n ) which are delivered by simple sensors (2 n ) that are exposed to sound field (P) determining...
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7206722 |
Oscilloscope having an enhancement filter
An enhancement filter for an oscilloscope is disclosed wherein the enhancement filter may be initially calibrated for one or more channels and/or for one or more attenuation settings such as 50 mV...
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7162397 |
Decoding an alternator output signal
An engine diagnostic system is provided that enables a service technician to evaluate engine cylinder contribution to output power. The service technician couples one or more signal leads to the...
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7078872 |
System and method for conditioning a signal
A method of conditioning a signal being communicated between a system to be controlled and a controller may include monitoring an actual output signal and conditioning the actual output signal. The...
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7035776 |
Low noise to signal evaluation
The invention provides for improved signal to noise ratios in evaluation techniques. This is done by acquiring a signal, processing it to obtain a complex form thereof, obtaining a filtering factor...
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7027962 |
System and method for self-configuring and self-optimizing filters
A system and method for self-configuring and self-optimizing filters is presented. A computing device monitors the number of occurrences of event types at particular stages in a data stream and...
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6950375 |
Multi-phase clock time stamping
Multi-phase clock time stamping for improving time stamp resolution is provided. One of many possible embodiments is a method for generating a time stamp having an improved time resolution for an...
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6944579 |
SIGNAL SEPARATION METHOD, SIGNAL PROCESSING APPARATUS, IMAGE PROCESSING APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS AND STORAGE MEDIUM FOR RESTORING MULTIDIMENSIONAL SIGNALS FROM OBSERVED DATA IN WHICH MULTIPLE SIGNALS ARE MIXED
Signals are separated by introducing a function having a monotonously increasing characteristic like an exponential type function as a cost function, and applying an adaptive algorithm that...
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6868365 |
Optimal ratio estimator for multisensor systems
A signal processing technique can be effectively used for source separation, signal enhancement, and noise reduction when using a twin microphone system. The class of stochastic signals for which...
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6868369 |
Tachometer
A tachometer used to measure a speed of an engine. The tachometer includes a pickup, a counter circuit, a conversion circuit, an automatic switching device, an indicator and a meter display. The...
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6853961 |
Method for estimating a correlation matrix of interfering signals received through a sensor array
Process for estimating the correlation matrix of signals of unknown characteristics in an array of N sensor. The process determines the correlation matrix {circumflex over (R)}s of the signals of...
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6847917 |
Method and apparatus for selecting condition indicators in determining 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)...
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6826982 |
Method and apparatus for detection of structural damage
The entire contents of these applications are incorporated herein by reference. A method and apparatus for detecting and monitoring fractures in a structure by monitoring acoustic energy...
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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...
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6549858 |
Structural control and monitoring using adaptive spatio-temporal filtering
A method and apparatus for decoupling complex multiple degree-of-freedom (MDOF) responses measured on linear dynamic systems into constituent single degree-of-freedom (SDOF) modal responses. A data...
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6484111 |
Real time signal analyzer
This invention relates to a real time signal analyzer that can produce time domain data and frequency domain data at the substantial same time and in real time, securing the simultaneousness...
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6415247 |
System identification method and its recording device
A system identification device is provided capable of performing a sequential updating process and preventing the quantity of operation from becoming too complex. The system identification device...
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6122605 |
Apparatus and method for filtering a digital signal
A closed loop feedback control system operates to maintain a process variable at or near a process variable setpoint. A digital filter is implemented with the controller to filter the process...
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6094626 |
Method and system for identification of genetic information from a polynucleotide sequence
A method and system for the identification of genetic information from a polynucleotide sequence is described. Genetic information from a raw polynucleotide sequence is identified by assigning...
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5943642 |
Method of designing subband digital filter bank
A method of designing a subband digital filter bank having first and second analysis filters with a 2-band linear phase satisfies a perfect reconstruction (PR) condition and has transfer functions...
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5925093 |
Sampling frequency converting apparatus
A sampling frequency converting apparatus according to present invention is such an apparatus in which, when a first digital signal of a sampling frequency Fsi is converted into a second digital...
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5495554 |
Analog wavelet transform circuitry
An analog circuit implementing a continuous wavelet transform forms a multiplicity of analog wavelet outputs. These analog wavelet outputs can be used for data compression. This analog circuit is...
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5451852 |
Control system having signal tracking window filters
A control system having a source of control signals and a multi-window electrical signal tracking filter. The signal tracking filter includes an operational amplifier operating in the non-inverting...
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5347464 |
High-pass filter for enhancing the resolution of AC power line harmonic measurements
An instrument employs a high-pass filter and an associated amplifier to reduce the number of Analog-to-Digital-Converter bits required to determine the amplitude of harmonics contained in digitally...
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5210705 |
Digital filtering with single-instruction, multiple-data processor
A single-instruction multiple-data processor (10) has an input layer especially designed for high data input and output rates. The processor (10) has a number of processing elements (20), each...
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H001005 |
Gram-Schmidt space-time adaptive filter using transverse orthonormal ladder filters
A space-time adaptive filter system is provided for eliminating unwanted signals from a radar or communication system. The filter system receives a main channel and several auxiliary channels...
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5068813 |
Phased digital filtering in multichannel environment
Parallel multistage, multirate digital filters are executed by a digital signal processor for signals on a plurality of channels. Parallel signals are converted from a first sampling frequency to a...
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4841461 |
Filter adjustment apparatus and method
A filter adjustment apparatus adjusts the properties of a filter by changing, for example, the circuit constants of a filter connected in series with a signal processing circuit to correspond with...
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4791672 |
Wearable digital hearing aid and method for improving hearing ability
A hearing aid to be worn by an individual of impaired hearing ability producing analog output signals of improved intelligibility. The hearing aid includes a wearable, programmable digital signal...
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4689759 |
Process and installation for the analysis and retrieval of a sampling and interpolation signal
To analyze and restore an analog signal by sampling at a frequency between 2.5 and five times the band of the signal and by interpolation, the signals sampled at the rate (F e ) is subjected to low...
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4520674 |
Vibration monitoring device
A portable vibration monitoring device (10) for use in connection with a base computer (11) which stores data regarding the nature and parameters of vibration measurements to be made on preselected...
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4298985 |
Digital filter bank detector
Disclosed is a signal detector including a bank of digitally synthesized rowband filters all having the same shape of frequency response and differing only in center frequency and which are...
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3621388 |
ELECTRONIC WAVE ANALYZER FOR DETERMINING THE FREQUENCY AND AMPLITUDE OF COMPONENTS IN A COMPLEX WAVEFORM
A wave analyzer capable of determining the amplitudes and phases of frequency components in a complex waveform. he selection of a frequency component is determined by the frequency of an external...
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3517176 |
ADAPTIVE PULSE ANALYZER WITH CROSS-CORRELATION
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