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7616767 |
Method and device for determining acoustical transfer impedance
The method comprises generating an acoustical volume velocity Q in the listening position, measuring a response quantity p, such as sound or vibration, at a suspected source position resulting from...
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7548820 |
Detecting a failure condition in a system using three-dimensional telemetric impulsional response surfaces
One embodiment of the present invention provides a system that facilitates high-sensitivity detection of an anomaly in telemetry data from an electronic system using a telemetric impulsional...
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7539599 |
Abnormality diagnosing method, condition appraisal apparatus, image forming apparatus, management apparatus and management system
Abnormality diagnosing method in which a highly reliable abnormality diagnosis of an image forming apparatus can be initiated immediately following the delivery of the image forming apparatus to a...
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7254508 |
Site loops
A method for use with a test system having sites that hold devices under test (DUTs) includes executing a first site loop to iterate through the sites, where the first site loop includes an...
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7194317 |
Fast plant test for model-based control
A method and apparatus for designing perturbation signals to excite a number of input variables of a system, in order to test that system for the purpose of obtaining models for the synthesis of a...
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7092837 |
Single platform electronic tester
An electronic tester with digital, and analog, and memory test circuitry on a single platform. A test head is coupled to a device under test. The device under test can be a system-on-a-chip...
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7072777 |
Exposure apparatus anti-vibration apparatus, system identification apparatus and system identification method
An exposure apparatus includes a motion control system, the motion control system including a structure, a plurality of actuators to apply forces to the structure, respectively, and a plurality of...
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6993452 |
Distance measure for probability distribution function of mixture type
In accordance with our invention, for two mixture-type probability distribution functions (PDF's), G, H,
G ( x ) = ∑ i = 1 N μ i g i ( x ) , H ( x ) = ∑ k = 1 K ...
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6862546 |
Integrated adjustable short-haul/long-haul time domain reflectometry
A method and system for performing integrated adjustable short-haul/long-haul time domain reflectometry (TDR). A TDR pulse count is set to a predetermined number. Next, a TDR pulse is transmitted...
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6785629 |
Accuracy determination in bit line voltage measurements
A method and circuit for determining the accuracy of a measurement of a bit line voltage or a charge distribution for readout from FeRAM cells uses sense amplifiers to compare a bit line voltage to...
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6735538 |
Apparatus and method for measuring quality measure of phase noise waveform
A clock signal x c (t) that has been converted into a digital signal is transformed into a complex analytic signal z c (t), and an instantaneous phase Θ of the z c (t) is estimated. A linear phase...
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6601007 |
Method and system to increase the performance of high-speed backplanes
A circuit board, for use with a high speed backplane, includes transmitter and receiver with circuitry for correcting for multipath signal errors. A training sequence that is often a pseudo-random...
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6549862 |
Vector network analyzer architecture based on sliding correlator techniques
A vector network analyzer using sliding correlator techniques and multi-user detection techniques. The sliding correlator technique is based on the time domain sliding effect caused by a small...
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6526365 |
Low-power/wideband transfer function measurement method and apparatus
The invention is a method of measuring transfer functions of a physical system using a wideband excitation signal by exciting the system with a low-power, wide band input signal that has a rich...
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6324485 |
Application specific automated test equipment system for testing integrated circuit devices in a native environment
An application specific automated test equipment system for source synchronous bus interface devices is described. A native interface board is provided to interface an automated test unit and a...
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6272441 |
Method for determining the pulse response of a broad band linear system and a measuring circuit for carrying out the method
The invention relates to a method for the determination of the impulse response g(t) of a broad band linear system. The method can be used for the application of high frequency technology. For a...
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6064212 |
Method for determining the transmission characteristics of an electric line
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5918198 |
Generating pulses in analog channel of ATE tester
A method simulating the filtering of a current pulse in a series of pulses. The method includes receiving a series of n+1 consecutive pulse addresses, including a pulse address for the current...
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5251155 |
System identification apparatus using spectrum analysis of resonation frequencies
A system identification apparatus determines a transfer function of an object to be identified for input and output signals. Predetermined frequency bands of the input and output signals are...
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4970638 |
Control of unknown systems via deconvolution
The controller is a logical network which, when interfaced with a mechanical system or an electromechanical system, will cause the output variable of the system to closely follow any command signal...
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4949236 |
Smart controller
The Controller is a logical network which, when interfaced with a mechanical system or an electromechanical system, will cause the output variable of the system to closely follow any command signal...
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4872028 |
Thermal-ink-jet print system with drop detector for drive pulse optimization
A thermal ink jet printing system includes a drop detector which is used in a feedback loop to optimize operational drive pulse parameters. By optimizing the drive pulse, drop velocity can be set...
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4813001 |
AC calibration method and device by determining transfer characteristics
A method for determining the transfer function of a data acquisition system involves inputting a set of bilevel input test patterns to the system and measuring the system's response. The input test...
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4667296 |
Testing the transfer function linearity of analogue input circuits
Testing the transfer function linearity of analogue input circuits. The transfer function linearity of an analogue input circuit, such as an analogue-to-digital converter (ADC) 25 is tested by...
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4275348 |
Method of and system for measuring the transmission characteristics of four-terminal networks
To measure the transmission characteristics of a signal line or other four-terminal network, a multifrequency test signal is fed through that network via a first channel to one input of a...
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4067060 |
Transfer function measurement
An apparatus for the measurement in realtime of the transfer function in both magnitude and phase of an unknown system including apparatus for generating a pseudo-random binary sequence as a test...
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3862403 |
PLANT OPTIMIZING CONTROL DEVICE
A plant optimizing control device in which a slight variation is caused in the input by applying a search signal to the input and the preset value of the input is adjusted on the basis of an...
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3694643 |
SYSTEM AND METHOD OF CHANNEL PERFORMANCE MONITORING
The channel impulse response of a communication channel is determined from measurement of the cross correlation between the channel output signal and a delayed locally generated pseudorandom noise...
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3024994 |
Crosscorrelation apparatus
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2996666 |
Automatic test apparatus
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2910241 |
Computer for network synthesis
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3718813 |
Title is not available
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