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7616721 Apparatus and method for checking network synchronization clock signal in communication system  
In an apparatus and method for checking a network synchronization clock signal in a communication system, the apparatus generates a divided clock signal which is the same as an externally inputted...
7599809 Processor capable of alerting its life expectancy and method thereof  
The present invention discloses a processor capable of alerting its life expectancy and its method. The processor is installed in an electronic device having a control circuit, a frequency divider...
7596462 Systems, methods, and devices for generating variable-frequency pulses  
At least one exemplary embodiment of the present invention includes a method comprising obtaining a first frequency and a second frequency. The method also comprises creating a table of values...
7542860 Method and device for detecting the location of a pulse-type mechanical effect on a system part  
A method and device detect a position of a pulsed mechanical effect on a plant component. An operating noise in the plant component is continuously recorded by sensors which are arranged on the...
7532995 Interpolator testing circuit  
An interpolator testing system comprises an interpolator that generates M clock signals having phase shifts in increments of 360/M degrees relative to a reference clock signal and that outputs one...
7483799 Method and apparatus for sampling a power supply current of an integrated circuit, and storage medium onto which is recorded a control program therefor  
An apparatus for sampling a power supply current value for performing frequency analysis of the power supply current flowing in an integrated circuit with a test signal applied to the integrated...
7418358 Dynamic voltage controller  
A processing apparatus uses dynamic scaling of voltage (DVS) and includes a controller. This is particularly applicable to software defined radio (SDR), but may also be for other reconfigurable...
7369953 Femtosecond spectroscopy using minimum phase functions  
A method determining a transient response includes providing a measured magnitude of the Fourier transform of a complex electric field temporal profile of a pulse sequence comprising a probe pulse...
7313493 Method of retrieving phase and magnitude of weak ultra-short optical pulses using a stronger unknown pulse  
A method determines a complex electric field temporal profile of an optical pulse. The method includes providing a measured magnitude of the Fourier transform of a complex electric field temporal...
7260485 Method and systems for distinguishing between materials having similar spectra  
Various computer-implemented methods and systems are provided. One computer-implemented method includes determining a ratio between output signals generated by detecting spectra for a single event...
7231311 Method for characterizing high-frequency mixers  
Novel excitation signals are specifically designed for testing a high-frequency mixer such that all of the desired intermodulation products are measurable after being converted by a sampling...
7184936 Timing variation measurement system and method  
The present invention is a system and method that facilitates measurement of timing variations (e.g., timing delays) in a semiconductor chip. The timing variations are measured and presented as...
7146283 Calibrating analog-to-digital systems using a precision reference and a pulse-width modulation circuit to reduce local and large signal nonlinearities  
A calibration unit and technique for calibrating A/D systems (e.g., data acquisition devices) using a pulse-width modulation (PWM) circuit to reduce nonlinearity. The calibration unit may be...
7113876 Technique and electronic circuitry for quantifying a transient signal using threshold-crossing counting to track signal amplitude  
Circuitry adapted for carrying out associated techniques for: (a) calculating a damping factor, e.g., a damping ratio represented by ζ, or a quality factor Q, where ζ≈1/2Q, for a transient...
7107166 Device for testing LSI to be measured, jitter analyzer, and phase difference detector  
LSI test equipment can acquire output data of an LSI as a device under test by a clock signal output from the LSI to be measured and acquire measurement data synchronously with the output data...
7085668 Time measurement method using quadrature sine waves  
A time measurement circuit includes N time stamping units that each includes a dual sinusoid interpolator for achieving high timing resolution. The time measurement circuit is capable of time...
7072785 Rate measurement for anomalous trigger events  
A method and apparatus for processing anomalous trigger event conditions to provide anomalous trigger event rate measurements. The apparatus operates to identify one or more trigger events in at...
7043383 Frequency error detection apparatus and method based on histogram information on input signals  
A frequency error detection apparatus and method based on histogram information of an input signal. The apparatus includes an A/D converter for and converting an analog signal into digital values;...
7006936 Pulse width measuring device with automatic range setting function  
A pulse width measuring device is disclosed that calculates the pulse width of a signal to be measured, based on a count value and a count clock signal. In the pulse width measuring device, the...
6959293 Method and device for automatic visual perception  
A visual perception processor comprises histogram calculation units, which receive the data DATA(A), DATA(B), . . . DATA(E) via a single data bus and supplying classification information to a...
6934646 Waveform complexity detector  
Trial decimations are performed on an acquired waveform. Each trial produces a sequence of packets applied to a complexity detection circuit. Each packet contains a decimation value to be used in...
6907368 Method and device for detecting a pulse-type mechanical effect on a system part  
A method and device for detection of a pulsed mechanical effect on a plant component includes continuously recording an operating noise in the plant component with a sensor disposed on the plant...
6895348 Information playback apparatus with an unusual waveform circuit  
An unusual waveform detection circuit is a digital-type unusual waveform detection circuit that arbitrarily sets a threshold used for determining an unusual waveform and produces an unusual...
6871152 Method and apparatus for performing eye diagram measurements  
An eye diagram analyzer equips each SUT data and clock signal input channel with individually variable delays in their respective paths. For a range of signal delay of n-many SUT clock cycles, the...
6850050 Reticle inspection  
An electric field is induced from a feature of a reticle, and the field is measured.
6847914 Method for determining the rotational position of the drive shaft of a commutated DC motor  
A method for determining the position of a shaft of a commutated direct current (DC) motor based on the current ripples contained in an armature current signal includes digitally sampling the...
6810341 Time varying harmonic analysis including determination of order components  
A system and method for analyzing order components present in a physical signal X acquired from a physical system. Measurement information for the physical signal X may be received, where the...
6792392 Method and apparatus for configuring and collecting performance counter data  
A system and method are described for configuring and collecting performance counter information of a computer system. The method includes providing one or more performance objects, each object...
6760675 Adjustable high current and high voltage pulse generator  
A controllable pulse generator apparatus and method are provided according to the invention. The pulse generator generates an adjustable, high current, high voltage pulse train output that may be...
6745141 Method for reporting the time distribution of a succession of events  
To report the time distribution of a succession of specified events such as occurrences of particular data elements in telecommunications equipment, the method comprises an initialization of a...
6738720 Apparatus and methods for measurement of density of materials using a neutron source and two spectrometers  
A system for measuring density of material which can be embodied to measuring bulk density of material penetrated by a borehole. The probe component of the system comprises a source of neutron...
6732059 Ultra-low background gas-filled alpha counter  
A method and counter for reducing the background counting rate in gas-filled alpha particle counters wherein the counter is constructed in such a manner as to exaggerate the differences in the...
6539320 Time delay determination and determination of signal shift  
The delay between a first signal and a second signal is evaluated by deriving from the first signal substantially aperiodic events, possibly by using a zero-crossing detector on a random signal,...
6486805 Frequency to digital converter  
According to an embodiment of the present invention, an input signal is provided to an oscillator, which creates a count signal with a greater frequency than the input signal. The input signal...
6374192 Apparatus and method for automatic correction of pole-zero error in a spectroscopy system  
A spectroscopy system is provided having an automatic pole-zero error correction circuit. A gated integrator of the system integrates a shaped pulse and trailing edge of the shaped pulse for...
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...
5884234 Method for pulse shape regulation and discrimination in a nuclear spectroscopy system  
The present invention is based on a digital pulse sampling and detection technique which samples a nuclear pulse train at a constant frequency asynchronously with the actual pulses, which occur at...
5790412 Recursive frequency aging estimation and prediction devices, methods and computer programs for crystal oscillators  
A recursive crystal oscillator aging estimation and prediction device is vided comprising a crystal oscillator connected to a calculation means having several software programs, including frequency...
5734579 Rotational-device method and system  
A rotational-device test system and method is provided to classify a rotational device according to the type of drive sound thereof. A divider divides the time-series data of an amplitude of the...
5359533 Method for determining a frequency/time profile of hits, and device for carrying out the method  
In a method for determining a frequency/time profile of hit sequences and the corresponding device, a measuring window is opened after an external starting signal has been locked. As long as the...
5107439 Continuous overlapping frequency measurement  
Method and apparatus for frequency measurement of an undulating signal with a time varying frequency. A sequence of consecutive time intervals T 1 , T 2 , T 3 , T 4 , T 5 , etc. is determined, and...
5051915 Frequency measuring apparatus  
To optimize valuable processor time required for the execution of the main control program in an engine control system, execution of no more than two interruption programs in preparation for...
4953095 Apparatus and method for measuring the frequency of a pulse signal  
An apparatus for measuring the frequency of a pulse train signal and method therefor applicable to a speedometer of a vehicle are disclosed in which a count value C of at least one counter which...
4914600 Programmable frequency identifier circuit  
A programmable frequency identifier circuit for identifying the frequency of a contaminated signal including a digital finite impulse response filter, a zero crossing detector, a zero crossing...
4881174 Sinusoidal signal frequency measuring device  
A device for high resolution measurement of frequency of a sinusoidal signal generated by a signal generator using an analog to digital converter to digitize the signal at an adjustable sampling...
4841451 System for measuring the duration ratio of pulses of variable frequency  
In a system for measuring the duration ratio of pulses of variable frequency, particularly in electronically controlled fuel-injection systems for internal-combustion engines, there are derived...
4837705 Method for calculating the rate of frequency of random events  
A method of determining the rate of change of frequency of a plurality of randomly occurring events begins by counting the number of random events which occur within a plurality of predetermined...
4788646 Frequency-to-digital value converter  
A converter for converting a variable data frequency which lies in a low frequency range whose upper limit is about 200 Hz to a corresponding digital value. The converter includes an electronic...
4672556 Frequency detector system  
A frequency detector in a frequency control for a generating system includes a system processor and a counter for deriving a digital count proportional to the output frequency of the generating...
4609990 Frequency measurement system  
A method of developing a signal representative of the instantaneous frequency of an alternating current signal encompasses first determining the apparent frequency of the signal at the ends of...
Matches 1 - 50 out of 81 1 2 >