Matches 201 - 250 out of 379 < 1 2 3 4 5 6 7 8 >


Match Document Document Title
7027945 Method of self-calibration of pulse rise and fall times  
An instrument which utilizes this invention is a pulse generator which has adjustable rise and fall time. The generation of timing of pulses is under control of a digital circuit, and the timing...
7024324 Delay element calibration  
A method for calibrating a delay element is described herein. In some embodiments, the method may include generating a clock signal with a clock edge, generating a reference signal with a...
7013229 Obtaining calibration parameters for a three-port device under test  
Calibration is performed for the testing of a device under test. A first port of the device under test is connected to a port of a calibration module. A second port of the device under test is...
6996487 Automatic calibration system for computer-aided surgical instruments  
A system for automatic calibration of instruments (S) having varying cross-sectional dimensions within a predetermined range and having detectable elements (110, 112, 113, 114) thereon for...
6996488 Sensor signal conditioner  
A sensor signal conditioner for temperature compensating, linearizing, and amplifying sensor signal output in electronic instrumentation circuits includes a programmable gain instrument amplifier...
6982561 Scattering parameter travelling-wave magnitude calibration system and method  
A calibration system and method determines magnitudes of traveling-waves at a non-coaxial plane of a scattering (S) parameter measurement device that includes an adapter link between the...
6950770 Method and apparatus for calibration of a delay element  
Various methods, systems and apparatuses having an integrated circuit that contains a calibration circuit having a series of delay elements to receive a reference signal. The reference signal...
6931331 Measurement interface optimized for both differential and single-ended inputs  
Offset adjustments for both differential and single-ended measurements are accomplished in the same probe or system. Different variable offsets are provided for the positive and negative inputs of...
6931343 On-signal quadrature modulator calibration  
An on-signal calibration system I and Q signals of a transmitter to remove distortions in the RF output signal. The transmitter generates I and Q values and converts, modulates and combines the I...
6925402 Method of operating a microcontroller chip having an internal RC oscillator and microcontroller chip embodying the method  
A chip includes CPU (12), memories (13,14) for programs and data, peripheral units (18,19) for interacting with the outside world, and an internal RC oscillator (17) for providing clock signals....
6922648 Tuning chart for devices under test  
An improved apparatus and method for tuning a device under test uses a spider diagram-like chart that provides the operator with visual cues as to the tuning status of a device under test (DUT)....
6917892 Single port single connection VNA calibration apparatus  
A method and apparatus are used to calibration a Vector Network Analyzer (VNA). The method includes providing a calibration module with a single port, providing within the calibration module a set...
6907374 Self-calibrating sigma-delta analog-to-digital converter  
A self-calibrating sigma-delta converter (SCADC) functions in a calibration mode and in an operational mode. In the calibration mode, a test circuit of the SCADC generates test signals that are...
6889151 Method and device for conditioning a periodic analog signal  
A method is disclosed for conditioning a periodic analog signal (SIN, COS) to predetermined, positive and negative desired peak values by adjusting the signal (SIN, COS) using multiplicative...
6885958 Self calibrating current reference  
The present invention relates to a current reference system comprising a selectively activatable high current reference circuit operable to generate a reference calibration circuit when activated...
6885959 Circuit and method for calibrating DRAM pullup Ron to pulldown Ron  
Embodiments of the present invention enable the matching of pull-up and pull-down driver strengths of a slave device (DDRII SDRAM), i.e., the P-channel/N-channel driver pull-up/pull-down Ron and...
6876939 Method and device of carrier wave frequency calibration for remote controller  
The present invention discloses wave frequency calibration method and device for remote controller, the device of the present invention comprises an oscillator for generating a base wave; a...
6864800 Apparatus and method of calibrating a keyless transmitter  
A crystal-less keyless entry system includes a micro controller, a timing circuit, a memory, and a radio frequency circuit. The memory and timing circuit are a unitary part of the microprocessor....
6842711 Power calibration system  
The present invention provides a high precision, low cost laser power calibration system. First, the photo signals output from a standard photo diode are received by a photo calibration system;...
6842710 Calibration of integrated circuit time constants  
A method and system for calibrating a time constant within an integrated circuit. A voltage storage element is charged, and the time required to achieve a reference voltage on the storage element...
6836743 Compensating for unequal load and source match in vector network analyzer calibration  
A method and a vector network analyzer compensate for unequal source match and load match of a test port of the vector network analyzer. The method characterizes the source match and the load...
6832177 Method of addressing individual memory devices on a memory module  
A method of addressing a memory device on a memory module includes determining whether a command has been issued to the memory module. An evaluation state is entered if the command has been...
6826504 Method and apparatus for controlling system parameters  
A method and an apparatus for controlling system parameters, in particular for controlling the voltage applied to piezoelectric elements (10, 20, 30, 40, 50, 60) within a circuit (A) for charging...
6820031 Method and device for distance detection  
A distance detection apparatus cancels signal delay times of transmission and reception circuits (13, 15, 22, 25), which are causes of the errors of distance detection, by receiving a transmission...
6807500 Method and apparatus providing improved data path calibration for memory devices  
A method and apparatus for calibrating a data path of a digital circuit uses an even bit pseudo-random calibration pattern. A portion of the pattern is captured in a capture period and used to...
6801868 Real time calibration method for signal conditioning amplifiers  
A signal conditioning amplifier receives an input signal from an input such as a transducer. The signal is amplified and processed through an analog to digital converter and sent to a processor....
6801867 Combining signal images in accordance with signal-to-noise ratios  
Combining signal images includes receiving signal images and performing the following to yield a weighted sum for at least one signal image. A phasor is generated from a signal image in accordance...
6799131 Calibration of a loss of signal detection system  
An integrated circuit has a loss of signal (LOS) system for detecting a loss of signal condition for an input data stream according to a LOS threshold. The LOS threshold specifies a minimum signal...
6795787 Method and apparatus for calibrating a sampling circuit  
An apparatus and method for calibrating a first sampling circuit with a second sampling circuit having a similar impulse response. The second sampling circuit includes a sample and hold circuit...
6792372 Method and apparatus for independent output driver calibration  
An apparatus and method for independently adjusting or calibrating the characteristics of multiple drivers for output buffer circuits without significantly increasing the associated necessary...
6782335 Method and system for estimating input power in a cable modem network  
A method for estimating the input power to a cable modem includes generating a look-up table containing AGC integrator accumulator values corresponding to selected frequencies and amplitudes. The...
6778930 System for reducing distortion of signals transmitted over a bus  
A computer system measures bus signal distortion and then adjusts certain characteristics of the signal transmitted over the bus, or adjusts other characteristics of the bus or the load on the bus...
6775635 System and method for measuring amplifier gain in a digital network  
A system and method are provided for measuring amplifier gain in a digital network. The method includes accepting a digital input signal; amplifying the input signal (Vin); comparing the amplified...
6766264 Method and apparatus for calibrating parameters to be used in a digital circuit simulation  
One embodiment of the present invention provides a system for calibrating a model of a digital circuit to account for noise effects between signal lines. The system operates by first fabricating a...
6751578 Method and apparatus for evaluating a digital information signal  
An apparatus and method for evaluating a digital information signal to be transmitted. A superimposition of the information with an interference signal can endanger an error-free data...
6735552 Method of recognizing and correcting errors  
A method for error detection and error correction in the monitoring of measurement values is disclosed, in which the value to be tested is checked for plausibility in an evaluation device, for...
6735540 Sigma-delta ramp loading calibration  
A continuous automatic calibration system and apparatus using a delta-sigma modulation technique. A first time duration is set. The first time duration is a length of time in terms of clock counts...
6728651 Methods and apparatuses for digitally tuning a phased-lock loop circuit  
A phase-locked loop circuit having a programmable tuning voltage. As the input reference clock frequency is changed, the tuning voltage is changed accordingly to compensate for the propagation...
6728650 High power amplifier operating point determination apparatus and method for satellite communications system  
A high power amplifier operating point determination apparatus and method determines an operating point of a high power amplifier for satellite communications system. For the purpose, the...
6725169 Methods and apparatus for automatic gain control  
An apparatus for controlling an amplitude of a signal generated from a digitized sinusoid of rapidly and widely varying amplitude is described herein. The apparatus includes a two stage gain...
6714886 System and method of DC calibration of amplifiers  
A compensation system for calibrating an amplifier having a compensation input including a sigma delta converter, a counter, a memory, adjust logic, a DAC, a pair of compensation capacitors, and a...
6711509 Impulsive transient hardware simulation  
An on-board self test system for an electrical power monitoring device includes a test signal circuit in an electronic circuit of the monitoring device, and responsive to a programmable test input...
6704673 System and method for improving linearity and reducing digitization artifacts in a data analysis system  
A system and method for improving linearity of data outputted from an analog-to-digital converter and reducing digitization artifacts, is provided. A noise generator is provided for generating...
6701194 Control board for controlling and monitoring usage of water  
An electronic control board for supplying control signals including an activation signal to a controlled device in response to a detection signal created by a sensor comprises an on delay timer, a...
6697749 Correction method of measurement errors, quality checking method for electronic components, and characteristic measuring system of electronic components  
Actual measured results, which do not agree with a reference measuring system accurately, are corrected to the same level as results measured by the reference measuring system. An interrelating...
6691055 Integrated circuit provided with means for calibrating an electronic module and method for calibrating an electronic module of an integrated circuit  
The integrated circuit is provided with integrated calibrating circuit in order to calibrate at least one electronic module supplying at its output a reference voltage or a time base signal or a...
6687637 Data sensor validation system and method  
A method of data sensor validation is disclosed. The method comprises the steps of pre-processing data sensor from each sensor from a plurality of sensors for at least segmenting the data sensors...
6681192 Systems and methods for fast timer calibration  
Systems and methods for efficiently and accurately determining a speed of a faster clock having unknown frequency using a slower clock having a known frequency. A series of measurement pairs are...
6651036 RMS-to-DC converter with fault detection and recovery  
A circuit that provides the root-mean-square (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes...
6651021 System using adaptive circuitry to improve performance and provide linearity and dynamic range on demand  
The invention discloses a system for improving performance of the RF amplification stage of communication receivers by accounting for the signal environment of the RF amplifier. The linearity,...

Matches 201 - 250 out of 379 < 1 2 3 4 5 6 7 8 >