Matches 251 - 300 out of 379 < 1 2 3 4 5 6 7 8 >


Match Document Document Title
6651022 Semiconductor device capable of test mode operation  
An output signal from a level detection circuit that detects a super VIH (normal logical high voltage level) condition is set to a valid state or to an invalid state by a force circuit and is...
6643598 Apparatus and method for calibrating a timing circuit in a remote keyless entry system using programmable commands  
A method of calibrating a remote keyless entry system adjusts a timing circuit that is a unitary part of a microprocessor. The method drives a plurality of inputs to the microprocessor to a logic...
6636821 Output driver impedance calibration circuit  
An output driver impedance calibration circuit which is used to make I/O (input/output) off chip driver characteristics, for a plurality of output driver circuits, alike on the same chip. The...
6625555 Variable resistance measuring loop having compensational function for environmental factors  
A variable resistance measuring loop having a compensational function for environmental factors is provided. The variable resistance measuring loop includes a central processing unit; a variable...
6622106 Device for testing and calibrating the oscillation frequency of an integrated oscillator  
A digital device for testing and calibrating the oscillation frequency of an integrated oscillator circuit, the testing and calibrating device has as input at least first and second control...
6606576 Real-time channel calibration method and arrangement  
A method and arrangement of transferring data at high speeds over a parallel data bus provides for calibration of the data without interrupting the data communication. Consistent with one aspect...
6604055 System and method for AC line voltage analysis  
A system and method for AC line voltage analysis is disclosed. According to one embodiment of the present invention, a system for AC line voltage analysis on an AC line includes a transformer that...
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...
6594606 Matrix element voltage sensing for precharge  
A method and apparatus to calibrate an LED matrix display such that a driver will provide a proper precharge voltage to LED elements within the display during a scan period. A current is driven...
6584422 Method and apparatus for optimizing corner frequency calibration of a tunable filter using a programmable diode  
A method and apparatus are provided for optimizing calibration of a tunable filter over a wide range of frequencies in a data channel of a direct access storage device (DASD). Calibration codes...
6581017 System and method for minimizing delay variation in double data rate strobes  
A system and method in which delay strobe variation in a double data rate device is calibrated by first individually calibrating all slave strobe delay devices at system startup. Thereafter, a...
6574576 Equalizer with auto-calibration and self-test  
In the present invention, a transmission line length estimation circuit with continuous feedback equalizer is provided. The transmission line length estimation circuit comprises a DC bias circuit...
6571191 Method and system for recalibration of an electronic control module  
A system for recalibrating a remote electronic control system, such as an engine control module (ECM), includes a computer maintaining a database of calibration upgrades and a history of...
6567762 Dynamic range extension apparatus and method  
An apparatus, method and system extend the dynamic range measurements performed on a device under test. The apparatus and method compensate for the non-ideal characteristics of the measurement...
6564158 Broadband electromagnetic field component measurement system  
Apparatus and method having a probe and readout for taking electromagnetic field measurements by acquiring raw data and linearizing the data either during processing or after processing by using a...
6549867 Power supply feed-forward compensation technique  
A power supply feed-forward compensation technique using power consumption hints. One embodiment includes a power estimator to generate a power consumption hint that indicates a power consumption...
6549816 Network software for a plumbing control system  
A plumbing control system includes a plurality of plumbing fixtures operated by an electronic control board having a microprocessor. The control board can form a node on a network that monitors...
6549860 Method and apparatus for tuning a megasonic transducer  
A method and apparatus for selecting an optimum frequency for driving a transducer in a megasonic cleaning system. The method comprises the steps of selecting a plurality of frequency values that...
6549872 Method and apparatus for firing simulation  
A first laser beam is transmitted through the actuation of the gun trigger, the trajectory of the virtual projectile is calculated, and the deviations of the trajectory from the target direction...
6546349 Optimal degaussing using an evolution program  
An evolutionary program is used to calibrate a ship degaussing system with respect to one or more parameters relating to the ship's magnetic signature. Pursuant to the computer program, a...
6522984 Instant pole-zero corrector for digital radiation spectrometers and the same with automatic attenuator calibration  
In one preferred embodiment, method and apparatus for instant pole-zero correction for digital radiation spectrometers. In another embodiment, there are provided method and apparatus for instant...
6522987 Monitoring system and method implementing a percent availability test  
A channel plan with a corresponding test plan are implemented in connection with a plurality of nodes that communicate signals. The channel plan has one or more predefined specifications for each...
6496785 Network analyzer, network analytical method and recording medium  
A network analyzer includes a raw data measuring portion for measuring an S parameter of a device under test, a measuring-system error-factor measuring portion for obtaining measuring-system error...
6490535 Method and apparatus for calibrating an instrument  
A method for calibrating an instrument includes maintaining typical response values at respective frequency locations. The response of the instrument being calibrated is measured at a subset of...
6480797 Apparatus and method for calibration of transmission shifters  
The present invention relates to an electronic control circuit and method for calibrating a transmission shifter and compensating for temperature variations. The electronic control circuit...
6463395 Shunt capacitance compensation structure and method for a signal channel  
A reed relay or other device is connected electrically in series within a signal channel. The signal channel can include a first length of transmission line separated from a second length of...
6449575 Voltage control of integrated circuits  
A method and apparatus for operating an integrated circuit in an electronic device by controlling the supply voltage to the integrated circuit (IC). A parameter of the IC is measured and used to...
6442497 Calibration method and strip for film scanners in digital photofinishing systems  
A method of calibrating a scanner in a digital photofinishing system, including the steps of: providing a calibration strip having a series of calibration patches including a plurality of neutral...
6421624 Multi-port device analysis apparatus and method and calibration method thereof  
A multi-port device analysis apparatus is capable of analyzing a multi-port device having three or more with improved efficiency and accuracy. The multi-port device analysis apparatus includes: a...
6381551 Method for providing an output signal having a desired value of a characteristic quantity at the output of a switched-mode power supply unit and circuit for carrying out the method  
The present invention relates to a method for providing an output signal (Ua) having a desired value of a characteristic quantity (Uarms) at the output of a switched-mode power supply unit. At...
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...
6366867 Method and apparatus for providing controllable compensation factors to a compensated driver circuit which may be used to perform testing of the structural integrity of the compensated driver circuit  
A method and apparatus for providing controllable compensation factors to a compensated driver circuit which may be used to perform testing of the structural integrity of the compensated driver...
6351718 Current control apparatus  
A current control apparatus capable of accurately and stably controlling a current which is supplied to an object of control such as a coil of a solenoid even when a control target value varies...
6347288 Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system and method  
An automatic pole-zero (APZ) adjustment circuit for an ionizing radiation spectroscopy system. An output of a preamplifier is sampled to identify the decay time constant of the preamplifier...
6345236 Method for detecting installation and/or calibration errors in a plurality of signal output units of one or more partial-discharge measurement systems  
A method for detecting installation and/or calibration errors in signal output units of a partial-discharge measurement system, where the signal output units are arranged at various points in an...
6324482 Sensor provided with adjusting function  
An object of the present invention is to provide an automatic compensation sensor that can eliminate an exclusive input terminal for the compensation mode signal. To achieve this object, the...
6304828 System and method for calibrating a signal detection threshold circuit  
The system and method for calibrating a signal detection threshold circuit is used in a radio frequency (RF) receiver, such as a in an early warning radar (EWR) system, in which a signal detection...
6285960 Method and apparatus for a router line card with adaptive selectable gain control  
A system and method are disclosed for calibrating a line card having a gain control circuit and memory device. The gain control circuit is configured to receive an input signal and an adjustment...
6282409 Arrangements and a method relating to an apparatus containing electrical circuitry  
It is shown a lid (100) at a portable device (150), as well as a portable device (150) having a lid (100), where said portable device (150) contains electrical device circuitry (151) within a...
6278956 Method of locating a failed latch in a defective shift register  
A method for locating a failing latch in a defective shift register having P latches connected in series fabricated in an integrated circuit chip. The chip is depassivated to expose its upper...
6249753 Sensor signal conditioner with calibration  
A sensor system is disclosed. The system comprises a sensor for sensing an input between a first, minimum sensor input value and a second, maximum sensor input value. The sensor generates a sensor...
6246968 Device for pin adjusting in sensors  
In order to enable frequent and easy adjustment of a physical quantity transformed by a sensor into starting values or curves, the following method is applied: a) the modifying unit keeps...
6246965 Pre-distortion tuning for analog lasers  
In a test configuration for a pre-distortion board configured with an analog laser, a test operator adjusts the settings for one or more components (e.g., potentiometers) on the pre-distortion...
6188970 Method of calibrating a multistage selective amplifier  
In a method for calibrating or aligning a multistage selective amplifier including an oscillator circuit and at least one tuning circuit, the tuning voltages respectively necessary for aligning...
6178388 Method and apparatus for calibrating a resistive ladder switching matrix  
A method and apparatus for calibrating a resistive ladder switching matrix coupled to a keypad in a portable electronic device having a housing with a cover that may be positioned in an open state...
6131073 Electronic circuit with an operating characteristic correcting function  
A power voltage of a power source circuit is produced by amplifying a threshold voltage difference of an operational amplifier by an amplification factor corresponding to a dividing ratio of a...
6131074 Apparatus for calibrating a programmable comparator  
A calibration apparatus for a programmable comparator is provided which does not need circuits for offset adjustment and gain adjustment or high precision parts makes possible inexpensive...
6018702 Tuned filter calibration system  
A filter calibration system uses the reflection characteristics of a tuned filter, such as a YIG-tuned filter (YTF), to establish a correspondence between a control signal applied to the filter...
5978745 System and method for automatically calibrating display monitor beam currents  
A system and method for automatically-calibrating display monitor beam currents. A device selects a target beam current within a display monitor. A current sampler measures a present beam current...
5974362 Signal generator for testing radio frequency components  
A signal generator comprises a number of independent signal sources each of which can be controlled to generate predetermined frequencies and modulation. The outputs of these signal sources can be...

Matches 251 - 300 out of 379 < 1 2 3 4 5 6 7 8 >