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Class 702/191 - For noise removal or suppression


Subclass of Class 702 - Data processing: measuring, calibrating, or testing
Definition: Subject matter comprising means for eliminating or reducing
No. of patents: 401
Last issue date: 05/07/2013


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NumberTitleIssue Date
7180947Method and apparatus for a dynamic data correction appliance
Embodiments of the present invention provide a method and system for a dynamic data correction appliance. A plurality of data points in a first domain may be sampled. The sampled data points may be transformed from the first domain to a second domain. The transforme...
02/20/2007
7177443Method and apparatus for associating identifiers with content
Watermark detection in an image or the like can be optimized by exploiting the innate biases in the image to emphasize the watermark signal. The watermark signal can be trial-located with different origins in the image to find one that yields improved results. Simil...
02/13/2007
7167810Analytical estimation of performance of a sensor system
The invention relates to a method for an analysis tool for analysis of the sensor performance of a system of sensors, which method comprises analytical calculation of a sensor system's measurement characteristics at each point in a given geographical area. The metho...
01/23/2007
7164863Network transceiver for extending the bandwidth of optical fiber-based network infrastructure
A multimode wavelength division multiplexing (WDM) network transceiver and method includes a plurality of optical transmitters and a multiplexer operatively connected to each optical transmitter for receiving optical communications signals and multiplexing the signa...
01/16/2007
7162396Measurement data displaying device, method, and program, and recording medium on which the program is recorded
A measurement data displaying device includes a measurement data recording unit and charge displaying unit. The measurement data recording unit records a measurement subject channel, a spreading code length corresponding to the measurement subject channel and measur...
01/09/2007
7162397Decoding 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 vehicle's battery, alternator, or accessory receptacle (e.g., cigarette...
01/09/2007
7162160System and method for protecting eye safety during operation of a fiber optic transceiver
A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conver...
01/09/2007
7158920Noise checking method and apparatus and computer-readable recording medium which records a noise checking program
The apparatus reduces the amount of correction for noise value error, so as to reduce work needed for correction to ensure error avoidance, and to improve the freedom of layout design, and to reduce load on DA. Based on a timing chart of signal transfer on each wire...
01/02/2007
7155133Avalanche photodiode controller circuit for fiber optics transceiver
A controller for controlling the reverse-bias voltage of an avalanche photodiode in a transceiver or receiver. The controller includes memory for storing information related to the avalanche photodiode, and analog to digital conversion circuitry for receiving an ana...
12/26/2006
7152021Computing distortion of media signals embedded data with repetitive structure and log-polar mapping
A digital watermark detection method uses a matched filtering technique on a log polar re-mapping of a watermarked signal to detect peaks associated with a repetitive structure of a watermark. ...
12/19/2006
7149430Optoelectronic transceiver having dual access to onboard diagnostics
The optoelectronic transceiver includes first and second controller ICs. Each controller IC includes logic, a memory, an interface, and at least one input port. Each memory is configured to store digital diagnostic data and has a unique serial device address to allo...
12/12/2006
7139989Semiconductor integrated circuit designing apparatus, semiconductor integrated circuit designing method, semiconductor integrated circuit manufacturing method, and readable recording media
In LSI design, gate level logic circuit information, standard cell library information, and package information of a circuit block constituting an LSI chip are inputted, noise analysis is performed for the LSI chip using the inputted information, and the processing ...
11/21/2006
7139677Methods for consistent forewarning of critical events across multiple data channels
This invention teaches further method improvements to forewarn of critical events via phase-space dissimilarity analysis of data from biomedical equipment, mechanical devices, and other physical processes. One improvement involves conversion of time-serial data into...
11/21/2006
7139674Systems and methods for filtering and smoothing data
Methods and systems for generating a curve that represents raw data are provided. In one embodiment, the system includes memory for storing a curve generation application program, a user interface, a display device, and a processor. The processor executes the stored...
11/21/2006
7136519Specimen topography reconstruction
This method removes high frequency noise from shape data, significantly improves metrology system (10) performance and provides very compact representation of the shape. This model-based method for wafer shape reconstruction from data measured by a dimensiona...
11/14/2006
7133791Two-mean level-crossing time interval estimation method
N-sample level-crossing estimator methods and devices are provided that extract more information from given time samples than the current two-sample approach and that are more resistant to interference from noises. The two-mean level-crossing time-interval estimatio...
11/07/2006
7127065Watermark embedding and detection
In a method and arrangement for embedding and detecting a watermark in an information signal, the embedded watermark (Wi) is selected (13) from a plurality of watermarks (W1 . . . WN) in dependence upon a property P of the sig...
10/24/2006
7116114Power supply noise measuring device
According to one embodiment, a signal from a power supply line is caused to pass through a high pass filter, and a first signal is generated by adding a voltage-divided signal to the signal. In addition, a second signal obtained by adding the voltage-divided signal ...
10/03/2006
7113899Method and system for designing an electric machine stator including keybars
Keybar voltages in electric machines are reduced by electromagnetically optimizing the positioning of the keybars with respect to stator winding phase belts, the selection of the number of keybars, the selection of the number of stator slots, and/or the direction of...
09/26/2006
7110801Voice activated wireless phone headset
A voice activated wireless phone headset whereby power control, timer and noise level recognition circuits sample ambient noise/voice levels and at predetermined levels provide an “off-hook” telephone condition. The light weight headset fastens around the ear wi...
09/19/2006
7107170Multiport network analyzer calibration employing reciprocity of a device
A multiport vector network analyzer calibration employs measurements of an asymmetric reciprocal device to determine a value of a defining parameter of a calibration standard in a set of calibration standards. A method of determining a parameter value determines and...
09/12/2006
7103426Anticipatory high frequency noise compensation in a distributed process control system
A control system includes a measurement device capable of gathering high frequency process parameter data, a modeling routine which uses the high frequency parameter data to develop a model of the high frequency noise and a compensation routine that employs the deve...
09/05/2006
7089158Real-time noise-suppression method and apparatus therefor
A thorough error suppression signal measurement system (20) having a transmitter (300) for propagating a transmission signal to a first probe 100, through a device under test (26), and into a second probe (200), and for propagating...
08/08/2006
7085656Method for suppressing edge artifacts in magnetic microscopy
A technique for eliminating edge artifacts in magnetic microscopy includes the steps of scanning a SQUID over an object under study to acquire values of magnetic fields produced by currents running in the object to create a first data set having N data points. At th...
08/01/2006
7079961Method and apparatus for measuring impedance of electrical component under high interference conditions
A test system and method having a test channel and an additional channel, and wherein the ratio of amplitude and phase between the interference current through the device under test and the interference signal on the additional channel are determined. The system fur...
07/18/2006
7079964Method for determining the frequency of the current ripple in the armature current of a commutated DC motor
A method for determining the frequency of current ripples contained in the armature current signal of a commutated direct current (DC) motor includes determining frequency spectral results of the current signal and of a motor electric operating parameter. The freque...
07/18/2006
7079775Integrated memory mapped controller circuit for fiber optics transceiver
A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals...
07/18/2006
7079838Communication system, user equipment and method of performing a conference call thereof
This invention relates to a communication system (200), user equipment (201,211) and method of performing a conference call. The communication system (200) employs discontinuous transmission and has a plurality of user equipment (201, 211, 21...
07/18/2006
7079987Tunable filter device for spatial positioning systems
A device for spatial positioning systems includes a programmable measurement filter that is dynamically tuned by the device signal processing unit. The signal processing unit analyzes available data including the measurement signal to determine the likelihood that a...
07/18/2006
7076403Apparatus and method for dynamic smoothing
An apparatus and a method for receiving and processing noisy communications signals automatically varies multiple processing parameters to both improve signal-to-noise ratio and to minimize delays in responding to changes in the incoming signal. The signal-to-noise ...
07/11/2006
7076082Media signal filtering for use in digital watermark reading
A curve fitting method is used to synchronize a reader of embedded data in a media signal. A circular reference signal is embedded in the media signal. After geometric distortion of the media signal, the reference signal is distorted, yet still detectable. The amoun...
07/11/2006
7072833Speech processing system
A system is provided for detecting the presence of speech within an input audio signal. The system includes a memory for storing a predetermined function which gives, for a given set of audio signal values, a probability density for parameters of a predetermined spe...
07/04/2006
7072863Forecasting using interpolation modeling
The value of a target variable is predicted by obtaining historical values for the target variable at each of several time points and obtaining previously predicted values and currently predicted values for each of several predictor variables, the predictor variable...
07/04/2006
7072487Watermark detection using adaptive color projections
Matching the color axis of the watermark detector to the color direction used by the watermark embedder: A preferred projection axis is determined for each pixel. The preferred projection axis for each pixel is determined by examining the color values of the surroun...
07/04/2006
7068780Hybrid echo canceller
Systems and methods for reducing transmit echo in a transceiver are disclosed. A hybrid echo canceller includes a limited tap length FIR filter to cancel short-term echo, while an interpolated filter is used to cancel the long-tail echo. The limited tap length FIR f...
06/27/2006
7069190Estimator for determining signal-to-interference ratio with reduced bias effect
A signal-to-interference ratio (SIR) estimator for estimating a SIR of baseband signals which are received and processed by a data demodulator to provide demodulated signals to the SIR estimator. The SIR estimator receives the demodulated symbols from the data demod...
06/27/2006
7069191Methods for reducing the susceptibility of a peak search to signal noise
A method to minimize noise is used to analyze data generated from a measurement system such as a flow cytometer. One embodiment of a computer-implemented method includes determining sums of different subsets of sample values. The method also includes determining the...
06/27/2006
7065474Frequency rectification system: apparatus and method
Frequency rectification system using a Van der Pol oscillator for processing an asset signal by obtaining a complex signal from an asset comprised of a noise signal and a signal of interest having a corresponding frequency of interest wherein the complex signal incl...
06/20/2006
7062393Polynomial fit for jitter separation
A method for determining the amount of deterministic jitter and random jitter in a digital signal having transitions between logical levels, the method comprising the steps of: providing said digital signal, determining a plurality of bit error rate values, each bit...
06/13/2006
7058310System and method for protecting eye safety during operation of a fiber optic transceiver
A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conver...
06/06/2006
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