Matches 151 - 200 out of 271 < 1 2 3 4 5 6 >
Match Document Document Title
6208950 Noise reduction method for a semiconductor device  
A 1/f noise coefficient characteristic with respect to an operating point of a semiconductor device is measured, and a control voltage corresponding to an operating point of the semiconductor...
6208951 Method and an apparatus for the identification and/or separation of complex composite signals into its deterministic and noisy components  
A process for the identification and/or separation of composite signal into its deterministic and noisy components wherein the process uses recursive wavelet transformations to separate the...
6205410 System and method for bit loading with optimal margin assignment  
A system and method which establishes an optimum margin for each channel in a discrete multi-tone (DMT) transceiver. The present system entails a discrete multi-tone transceiver which comprises a...
6167359 Method and apparatus for characterizing phase noise and timing jitter in oscillators  
A nonlinear analysis for characterizing phase noise and timing jitter in oscillators is disclosed. The method and apparatus utilize a nonlinear differential equation to characterize the phase error...
6131076 Self tuning system for industrial surveillance  
A method and system for automatically establishing operational parameters of a statistical surveillance system. The method and system performs a frequency domain transition on time dependent data,...
6115674 Automated detection and location of indications in eddy current signals  
A computer implemented information extraction process that locates and identifies eddy current signal features in digital point-ordered signals, signals representing data from inspection of test...
6112167 Tire tread noise treatment  
A technique for estimating the harmonic content of a tread pattern design and specifically a tire pitch sequence. Pitch sequence harmonic content is obtained and analyzed as a function of position...
6112161 Method, apparatus, and article of manufacture for enhanced intergration of signals  
A method, apparatus, and article of manufacture for enhanced integration of signals, such as those generated by chromatographs. In one embodiment an approximate baseline used for integration of a...
6108611 Signal processing of an array of sensor elements in a detector  
A signal processor (10) receives both open and closed field values for elements of a detector (11) and corrects for non-uniformities in offset response between the elements prior to converting the...
6092033 Method and apparatus for fusing mean and covariance estimates  
A method and apparatus are described for fusing a plurality of signals, corresponding to mean and covariance estimates, into a single signal when the given signal estimates are correlated to an...
6061641 Method for improving instrument response  
This invention pertains generally to a method for improving the accuracy of particle analysis under conditions of discrete particle loading and particularly to a method for improving...
6044336 Method and apparatus for situationally adaptive processing in echo-location systems operating in non-Gaussian environments  
A signal processing method for use in echo-location systems (radar, sonar, laser radar) to obtain accurate estimates of the target reflectivity sequence in a random (non-Gaussian) noise...
6041290 Method of adaptively adjusting the coefficients of a digital filter in an echo canceller  
Digital filters are used to compensate for echoes in a transmission system in which unwanted couplings occur between a signal value in the receiving direction and a signal value in the transmitting...
6041291 Digital data processing circuit and digital data processing method  
A digital data processing circuit has an inverting circuit for inverting a positive/negative sign of the output data of an encoding circuit. A correcting circuit returns the inverted sign of the...
6038526 Method for detecting weak signals in a non-gaussian and non-stationary background  
A method is described for detecting weak signals in a non-Gaussian and non-stationary background using a hidden Markov parameter estimator. The method comprises the steps of: a) partitioning input...
6018689 Active vibration reducing apparatus and method for identifying transfer function in active vibration reducing apparatus  
Described are a vibration actively reducing apparatus and a method for identifying a transfer function in the vibration actively reducing apparatus. An identification signal which is a quantization...
6016465 Sensor fault detection system  
The sensor fault detector is one in which each sensor signal is compared with a reference signal provided by e.g. a model of the system being monitored. Prior art sensor fault detectors subtract...
5995565 Co-channel interference reduction  
Co-channel interference in baseband digital samples of an FM communications (e.g. AMPS) signal is cancelled by a complex signal limiter and non-linear filter (CLNF), to which the samples are...
5991701 Method for improved instantaneous helical axis determination  
A method for determining instantaneous helical axis parameters pertaining to the kinematic function of a joint processes the data with a first filter function which is based upon the Woltring IHA...
5980097 Reduced complexity signal converter  
In a signal converter which derives from an input signal having a sample rate R/q an output signal having a larger sample rate R, the input signal is combined with a feedback signal in a subtracter...
5974361 Waveform reconstruction from distorted (saturated) currents  
A method employed in a condition monitoring unit (CMU) for monitoring a circuit breaker or interrupter to obtain a substantially undistorted version of a waveform suffering from saturation...
5966684 Method and apparatus for cancelling periodic electrical interference  
A system involving method and apparatus for cancelling a periodic electrical interference signal from a signal of interest is disclosed. The system of the invention creates an estimate of the...
5953690 Intelligent fiberoptic receivers and method of operating and manufacturing the same  
An intelligent fiberoptic receiver (500) and methods of manufacturing and operating the same. During calibration procedures for the receiver, the optical-to-electrical conversion device (avalanche...
5943641 Method and device for recovering a wanted acoustic signal from a composite acoustic signal including interference components  
The device for extracting a useful acoustic signal from a composite acoustic signal including nuisance components includes: first sensor component for picking up the composite acoustic signal;...
5933799 Noise eliminating bus receiver  
There is provided a bus receiver including a first differential amplifier comparing an input signal to a first reference voltage, and transmitting a first pulse signal accordingly, a second...
5933797 Adaptive dual filter echo cancellation  
A digital signal processor that is used for echo cancellation computations is disclosed, which includes parallel multiplier/adders, an input signal sample memory, and a plurality of accumulators...
5933798 Detecting a watermark embedded in an information signal  
To detect a watermark signal embedded within an information signal, predictive filtering is applied to either the information signal, a plurality of applied watermark signals, or both types of...
5909661 Method and apparatus for decomposing drive error signal noise sources  
A process and apparatus is described to break down the Position Error Signal (PES) of a magnetic or optical disk or tape drive to its contributing components. (In the case of the optical disk...
5867810 Wiring device and wiring method  
A wiring device and wiring method suitable for designing LSIs or printed boards or the like. The wiring device includes a wiring pattern editing unit for editing wiring patterns; a noise analyzing...
5825672 Method and apparatus for automatically detecting patterns in digital point-ordered signals  
The present invention is a method and system for detecting a physical feature of a test piece by detecting a pattern in a signal representing data from inspection of the test piece. The pattern is...
5825671 Signal-source characterization system  
A source characterization system (8) which, starting from linear convolutive mixtures E(t) of primary signals X(t) from sources (S1-Sn), determines signals F(t) which form an estimate of a...
5815413 Integrated method for chaotic time series analysis  
Methods and apparatus for automatically detecting differences between similar but different states in a nonlinear process monitor nonlinear data. Steps include: acquiring the data; digitizing the...
5808902 Power quality transducer for use with supervisory control systems  
A method and apparatus for detecting power quality or disturbance events, such as voltage swells, sags or impulses, in power signals at remote locations of a power distribution system and for...
5805457 System for analyzing sound quality in automobiles using musical intervals  
A computer-implemented system for analyzing sound quality in automobiles includes a noise spectrum generator that generates an actual or synthetic noise spectrum representative of the noise of an...
5784300 Methods, apparatus and systems for real time identification and control modes of oscillation  
A system for real time identification of modes of oscillation includes a sensor, an observer, a controller and an actuator. The sensor senses a controlled system such as a combustor, and generates...
5784241 Electromagnetic-noise protection circuit  
An electromagnetic-noise protection circuit for protecting an electrical device, which processes wanted signals, comprises a sensor which senses the presence of ambient electromagnetic noise from...
5771310 Method and apparatus for recording three-dimensional topographies  
The invention features a method of generating a three-dimensional topography of a property of an object, by (a) generating digital data points at a plurality of sample points on the surface of the...
5764345 Methods for detecting inhomogeneities, specifically, striae, infused silica glasses  
A process for detecting inhomogeneities, specifically, striae in a sample of fused silica glass is provided which includes the steps of: preparing a digitized phase plot for the sample using an...
5757654 Reflective wave compensation on high speed processor cards  
Packaged signal routing circuits (e.g. on printed circuit cards or boards), route pulse signals with very short rise times from a lossy driver to multiple devices. In these routing circuits, a...
5748507 Real-time superresolution signal processing  
A signal processing system and method capable of real-time implementation for extracting signal parameter information with high accuracy and resolution. Signals (101) are passed through a filter...
5745384 System and method for detecting a signal in a noisy environment  
A system and method are disclosed for detecting an event-related signal among noise, where the system includes memory for storing measurement values and may include a processor for generating...
5737238 Method and apparatus for ply discontinuity detection  
A ply break detector for a laminate web uses a short time constant low pass filter and a long time constant low pass filter for filtering output signals from a sonic web scanner. A difference...
5737445 Automated feature detection and identification in digital point-ordered signals  
A computer-based automated method to detect and identify features in digital point-ordered signals. The method is used for processing of non-destructive test signals, such as eddy current signals...
5727216 Signal processor  
A signal processor having excellent noise resistance characteristics while maintaining superior synchronizing characteristics for hardware interrupt processes. Signal A output from a port REM of a...
5727073 Noise cancelling method and noise canceller with variable step size based on SNR  
The object of the present invention is to provide a noise cancelling method and a noise canceller where the shortening of the convergence time and the reduction in the distortion (residual error)...
5724269 Single clock cycle two-dimensional median filter  
A median circuit operates over a single-clock-cycle to determine the median of the group. Each value is compared with a plurality of other values. One of those other values become the eventual...
5721694 Non-linear deterministic stochastic filtering method and system  
A method and system for filtering a noisy input comprised of an information signal and a noise signal. No prior time domain value information or frequency domain parameter information on the...
5696699 Integrated cellular data/voice communication system working under one operating system  
A cellular communication system having all of its components operating under a single system control unit is provided so that the various components of the system can be adjusted as the parameters...
5675513 Method of calibrating an interferometer and reducing its systematic noise  
Methods of operation and data analysis for an interferometer so as to eliminate the errors contributed by non-responsive or unstable pixels, interpixel gain variations that drift over time, and...
5673191 Method and apparatus for identifying geological structures using wavelet analysis of potential fields  
A method of analyzing geological survey data of the potential field measurement type is disclosed. According to the disclosed method, discrete measurement values of the potential field, either the...
Matches 151 - 200 out of 271 < 1 2 3 4 5 6 >