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Data Processing: Measuring, Calibrating, Or Testing > Measurement System In A Specific Environment > Electrical Signal Parameter Measurement System > Waveform Analysis > Signal Quality (e.g., Timing Jitter, Distortion, Signal-to-noise Ratio) Signal Quality (e.g., Timing Jitter, Distortion, Signal-to-noise Ratio)Signal Quality (e.g., Timing Jitter, Distortion, Signal-to-noise Ratio) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/07/06 - 20060276983 - Video quality evaluation device, video quality evaluation method, video quality evaluation program, video matching device, video aligning method and video aligning program A subjective quality estimating part (11) receives an undeteriorated reference video signal (RI) and a deteriorated video signal (PI) produced from the reference video signal, calculates video signal feature values for both the signals, and according to a difference between the calculated video signal feature values of the signals, estimates ... 10/12/06 - 20060229836 - Separation of a random component of jitter and a deterministic component of jitter A random component of jitter and a deterministic component of jitter are separated. A measured jitter distribution is obtained. A form is selected for a selected component of jitter. The selected component of jitter is either the random component of jitter or the deterministic component of jitter. A remaining component ... 10/12/06 - 20060229835 - Separation of random and deterministic components of jitter Random and deterministic components of jitter are separated. A measured value for deterministic jitter and a plurality of values for random jitter are used to calculate a plurality of first ratios (ξml) of random jitter to deterministic jitter. For each of the plurality of values for random jitter, the value ... 08/31/06 - 20060195278 - System and method for applying correction factors related to ambient conditions A method and system for effecting an appearance model correction for a display unit, e.g., a CRT, using a polynomial-based algorithm is described. The correction may be effected in real time and is based on gamma values associated with the display. Strong correlations with the CIECAM02 specification are achieved according ... 08/17/06 - 20060184332 - Test apparatus and test method A testing apparatus for performing a testing on a device under test (DUT) is provided, wherein the testing apparatus includes a performance board on which the DUT is mounted; a main frame for generating a test signal for testing the DUT and determining pass/fail of the DUT on the basis ... 07/27/06 - 20060167640 - Apparatus 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 ratio is improved with relatively stable signals by increasing the number of samples used ... 07/20/06 - 20060161361 - Periodic jitter (pj) measurement methodology Methodologies are disclosed for analyzing periodic jitter is a signal pattern using a continuous time interval analyzer. Sampled signal patterns may be correlated using time interval error calculations to determine start and stop sequences within sampled blocks of signal data while sampling synchronization may be achieved based on time interval ... 07/13/06 - 20060155490 - Gas measuring device and method with compensation of disturbances Disclosed is a gas measuring device which comprises compensation of disturbances and offers high accuracy of measurement immediately after being activated. Said gas measuring device is provided with a gas sensor (1) for generating a measuring signal (S1) that depends on the gas concentration and can have a spurious component ... 06/01/06 - 20060116833 - Eddy current detection and compensation A distortion compensation method includes determining an undisturbed phase for at least one of a first position indication signal and a second position indication signal. The method includes determining an undisturbed ratio that relates the amplitude of the first position indication signal at a first frequency to the amplitude of ... 06/01/06 - 20060116832 - Eddy current detection and compensation A distortion compensation method includes determining an undisturbed phase for at least one of a first position indication signal and a second position indication signal. The method includes determining an undisturbed ratio that relates the amplitude of the first position indication signal at a first frequency to the amplitude of ... 05/11/06 - 20060100801 - System and method of generating test signals with injected data-dependent jitter (ddj) A system and related method for generating a test signal with controllable amounts of signal jitter includes a pattern generator, a programmable arbitrary waveform generator (AWG) and a phase modulator. The pattern generator is configured to generate a data signal characterized by a given data pattern, bit rate and pattern ... 04/20/06 - 20060085150 - Phase noise compensation for phase noise measurements A system and method compensate for phase noise of a spectrum analyzer when measuring the phase noise of an applied signal based on an established model of the phase noise that accommodates a variety of operating states of the spectrum analyzer. Each operating state has a carrier frequency associated therewith. ... 04/13/06 - 20060080054 - System and method for generating jitter analysis diagrams A system and method for generating various jitter analysis diagrams and customized jitter analysis reports. The method includes the steps of: (a) obtaining a signal file; (b) determining a type of the signal file; (c) loading customized jitter analysis parameters; (d) generating a graphic function according to the customized jitter ... 03/23/06 - 20060064258 - Jitter measurement device and jitter measurement method An orthogonal signal generating unit converts a signal to be measured into two orthogonal signals which are two signals whose phases are orthogonal to one another. An instantaneous phase calculating unit calculates an instantaneous phase based on the two orthogonal signals within a range between a lower limit phase value ... 03/16/06 - 20060058973 - Built-in-self-test (bist) circuit with digital output for phase locked loops-jitter testing and method thereof A built-in-self-testing (BIST) circuit with digital output for phase locked loops-jitter testing and the method thereof are used to solve the problems of difficult processing and test of high frequency signals encountered during test of jitter signal of phase locked loops. The built-in-self-testing (BIST) circuit with digital output for phase ... 03/02/06 - 20060047450 - System and method of obtaining data-dependent jitter (ddj) estimates from measured signal data Methods for estimating data-dependent jitter (DDJ) from measured samples of a transmitted data signal include a first exemplary step of obtaining a plurality of measurements (e.g., time tags and event counts for selected pulse widths in the data signal). Such measurements may be obtained at predetermined intervals within a transmitted ... 02/09/06 - 20060031033 - Jitter measurement method, jitter measuring apparatus and image forming apparatus The present invention measures jitter in a galvano scanner that scans a light beam on a surface to be scanned by periodically turning a reflection mirror in a reciprocating manner. Two detectors for detecting and receiving the light beam are mounted near both ends of the scan region of the ... 02/09/06 - 20060031032 - Method and apparatus for reducing skew effects Method for deskewing sampled data includes acquiring data samples from a first location in a first channel according to a first set of data collection parameters, performing a validity analysis of the acquired data samples, and in response to the occurrence of a trigger condition, halting the acquisition of new ... 02/02/06 - 20060025945 - Method and systems for optimizing high-speed signal transmission A method and systems for automatically adjusting the parameters of signal emitter in a synchronous high-speed transmission system, is disclosed. According to the method of the invention, the quality of a high-speed received signal is analyzed for a plurality of sets of parameter values and the one producing the best ... 11/03/05 - 20050246118 - Method of optimizing the timing between signals A method of optimizing the timing between signals to be latched and a respective latching clock signal is suggested wherein test timings are provided according to which a delay test value of a clock delay line (CDL) are generated. According to the delay test values a clock signal (C) and ... 11/03/05 - 20050246117 - System and method of analyzing timing effects of spatial distribution in circuits Systems and methods are provided for analyzing the timing of circuits, including integrated circuits, by taking into account the location of cells or elements in the paths or logic cones of the circuit. In one embodiment, a bounding region may be defined around cells or elements of interest, and the ... 11/03/05 - 20050246116 - Method and system for evaluating timing in an integrated circuit Methods for analyzing the timing in integrated circuits and for reducing the pessimism in timing slack calculations in static timing analysis (STA). The methods involve grouping and canceling the delay contributions of elements having similar delays in early and late circuit paths. An adjusted timing slack is calculated using the ... 09/29/05 - 20050216213 - Real-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 reference signals to the probes (100,200). The probes (100,200) extract normalization signals from ... 08/04/05 - 20050171713 - Self-diagnosing system for encoder A self-diagnosing system for an encoder. The system includes an encoder circuit for outputting information detected by an encoder; a data preparing section provided in the encoder circuit and preparing data representing a state of an abnormal-state judgment factor in connection with at least one of the encoder and an ... 07/21/05 - 20050159908 - Method and device for measuring intermodulation distortion A measuring device is provided for measuring intermodulation distortion of a measuring object. The measuring device includes a first signal generator which produces a first signal that is supplied to an input of a measuring object, a signal combining device having a first input which is connected to the output ... 06/23/05 - 20050137814 - Method of measuring noise figure using arbitrary waveforms Noise figure of a device under test (“DUT”) is measured using a programmable RF source and a receiver, such as a spectrum analyzer. The programmable RF source is operated to produce pseudonoise, such as white Gaussian noise (“WGN”), as the hot noise source. Turning the programmable RF source off provides ... 06/09/05 - 20050125176 - Frequency and timing error estimation and corresponding channel characterization in a communication system A method for determining a frequency error over at least one frequency search space for a received signal, the method including the steps of: calculating a first noise estimation for a first frequency offset in a frequency search space; calculating at least a second noise estimation for a second frequency ... 06/09/05 - 20050125175 - Method, system and apparatus for quantifying the contribution of inter-symbol interference jitter on timing skew budget An apparatus, method and system are provided for quantifying communication channel intersymbol interference jitter effect contribution to timing skew. In general, lossy and lossless characteristics of the communication channel are preferably obtained and an output signal of the communication channel is sampled. From the sampled output signal and the lossy ... ### FreshPatents.com Support |