Matches 151 - 200 out of 379 < 1 2 3 4 5 6 7 8 >


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7328116 Visual monitor calibration  
A method is presented for deriving gamma for a display monitor that does not involve color matching tasks. The method includes displaying a test pattern to a user on the display monitor. The test...
7310586 Metal detector with data transfer  
A metal detector adapted to generate a transmit search signal and to receive a receive search signal, and to analyse such received search signal, wherein the detector is adapted to allow a...
7308375 System and method for determining light source current  
A system and method are provided for determining a light output of a light emitting diode (LED) in a scanner. The system includes a processor circuit to execute current control logic to obtain an...
7305310 System and method for compensating for potential and current transformers in energy meters  
A meter device for measuring electrical energy is provided. The meter device includes circuitry for measuring at least one parameter of electrical energy provided to the meter device. A storage...
7302355 Method and apparatus for calibrating circular objects using a computer tracking system  
A method of calibrating a circular portion of an object, such as to determine the center point of the object, is provided. The method includes determining spatial coordinates of at least two...
7292953 Semiconductor memory device with ability to adjust impedance of data output driver  
A semiconductor memory device for performing an OCD calibration control operation to adjust a data output impedance includes a decoder for decoding an address signal to generate an OCD default...
7289924 Self-calibrating sensor  
A method for self-calibrating a sensor can be implemented in a system having a calibration circuit. The calibration circuit has differential circuitry which compares an output signal of the sensor...
7289921 System and method for providing an improved voltage monitor for an adjustable supply voltage in adaptive voltage scaling  
A system and method is disclosed for providing an improved voltage monitor that is capable of determining that a value of an adjustable supply voltage is suitable for a requested performance level...
7272523 Trimming for accurate reference voltage  
A method for trimming reference voltage circuitry includes defining a desired target reference voltage for a set of at least one die. At least two reference voltages are measured for at least two...
7269524 Delay lock loop delay adjusting method and apparatus  
Systems and methods for synchronizing communication between devices include using a test circuit to measure a propagation time through a delay circuit. The propagation time is used to determine an...
7266466 Watermark time scale searching  
Method and apparatus are described for compensating for a linear time scale change in a received signal, so as to correctly rescale the frame sequence of the received signal. Firstly, an initial...
7262628 Digital calibration with lossless current sensing in a multiphase switched power converter  
Disclosed is a multi-phase power regulator that accurately senses current at a load in a lossless manner and adjusts the power supplied to the load based on the sensed current. Also disclosed is a...
7257505 System for calibrating integrated circuit filters  
A main signal path filter is calibrated by calibrating a replica filter that tracks parametric changes in the main signal path filter. Programmed values of the replica filter determined during...
7254505 Method and apparatus for calibrating delay lines  
A delay line (DL) circuit used to generate test pattern waveforms has a pulse generating circuit that is used during calibration to generate a pulse signal upon receiving a signal edge. A delay...
7254507 Analog circuit automatic calibration system  
An analog circuit automatic calibration system for calibrating an object circuit that is an analog circuit having a characteristic changing with an input set value. The system includes: a set...
7236894 Circuits, systems and methods for dynamic reference voltage calibration  
A circuit, system and method adjusts a reference voltage, such as an internal or external reference voltage VREF, in response to a first voltage at a first contact, such as a pin on a memory...
7228249 Methods and apparatus for determining the condition of a sensor and identifying the failure thereof  
Methods and apparatus are provided which generate an error signal if a sensor is either anticipated to fail or fails. At least two sensors provide input signals having magnitudes that...
7225097 Methods and apparatus for memory calibration  
In a first aspect, a first method is provided for adjusting memory system calibration. The first method includes the steps of (1) while in a first operating state, calibrating the memory system...
7222037 Hybrid automatic gain control (AGC)  
A method of automatic gain control in both analog and digital domain is performed by receiving an incoming analog signal, determining an overall gain factor, determining a coarse analog gain...
7216049 Method for calibrating current offset and filtering bad data in a system that detects power output  
One embodiment is a method of calibrating current offsets from a direct current bus current circuit adapted to control a motor including the steps of initializing the direct current bus current...
7209848 Pulse stretching architecture for phase alignment for high speed data acquisition  
Systems and methods for pulse stretching architectures for phase alignment of multi-frequency clocks for high speed data acquisitions are disclosed. A high speed data acquisition system includes a...
7206710 Incremental generation of calibration factors for automated test equipment  
In one embodiment, a request to perform a calibration process for automated test equipment (ATE) is received. The request is associated with a calibration parameter set. After receiving the...
7194559 Slave I/O driver calibration using error-nulling master reference  
Methods and devices for calibrating a driver on a slave device, using a master device driver as a load, are disclosed. A master reference driver is integrated on the same circuit as the master...
7191083 Method and apparatus for calibrating data-dependent noise prediction  
Disclosed herein is an apparatus and method of calibrating the parameters of a Viterbi detector 138 in which each branch metric is calculated based on noise statistics that depend on the signal...
7184911 Determination apparatus and method of calibrating the apparatus  
There is provided a determination apparatus. The determination apparatus includes (a) a determination device having a plurality of determination terminals, (b) a controller for selecting at least...
7183896 Wake-up circuit  
The disclosed embodiments may relate to vehicle (10) having a control system (12) located within the vehicle (10). The control system (12) may include a processor (26) and a wake-up circuit (46)...
7184912 Memory device with apparatus for recalibrating output signal of internal circuit and method thereof  
A memory device with an apparatus for recalibrating an output signal of an internal circuit is disclosed. The memory device includes a plurality of signal modulators for simultaneously receiving...
7171324 System and method for removing measurement errors from measurement systems  
A test system and method which utilizes a component data base that stores performance data for individual component of the system. The system and method can further provide for using data and...
7152010 Calibrating an analog-to-digital converter using a test signal with a precise DC voltage  
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...
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...
7139682 Sensor system with variable sensor-signal processing  
A sensor system with variable sensor-signal processing comprises an integrated circuit sensor unit. The integrated circuit sensor unit includes a sensor element that provides a sensed signal in...
7130756 Calibration method for carrying out multiport measurements on semiconductor wafers  
The invention relates to a method for calibrating a vectorial network analyzer having n measurement ports and at least 2n measurement locations (n>1) by successive measurement of the reflection...
7124049 Method for implementing TRL calibration in VNA  
In one embodiment, a method comprises storing parameters that are related to switch error correction terms of a vector network analyzer (VNA), and applying a calibration process of a TRL group of...
7120550 Radio-frequency identification circuit oscillator calibration  
According to one aspect of the present invention, there is provided a method of calibrating an oscillator within a radio-frequency identification (RFID) circuit for use in an RFID tag. A plurality...
7107170 Multiport network analyzer calibration employing reciprocity of a device  
A multiport vector network analyzer calibration employs measurements of an asymmetric reciprocal device to determine a value of a defining parameter of a calibration standard in a set of...
7106249 Phase calibration method and apparatus  
Disclosed is a phase calibration method for inserting a calibration signal (SC) into main signals (SM1 to SMn) of a plurality of branches in turn, estimating the phase characteristic of an analog...
7103492 Process independent delay chain  
An integrated circuit has a circuit for adjusting the time period of an output signal. The adjustment can compensate for semiconductor processing variations varying from wafer to wafer. The...
7092834 Method for determination and representation of adjustment steps for an apparatus requiring adjustment  
In a method for determination and representation of adjustment steps for operation of an apparatus requiring adjustment, such as a diagnostic imaging apparatus, the implementation of manual...
7091891 Calibration of analog to digital converter by means of multiplexed stages  
An improved pipelined analog to digital converter that facilitates calibration for non-linearity errors and a method for obtaining calibration values. The analog to digital converter has a...
7085663 Adaptive error correction in an oversampled ADC  
An analog-to-digital converter (ADC) exhibiting an uncorrected non-linear transfer function receives measured analog voltage amplitudes and outputs uncorrected digital values. A calibration...
7076384 Method and apparatus for calibrating a current-based circuit  
A method and apparatus for calibrating a current source to a reference current through the use of 1-bit current comparisons. A temporary current source is first calibrated to the reference...
7076376 System and method for calibrating weak write test mode (WWTM)  
According to at least one embodiment, a method comprises measuring drive current of a reference memory cell of a circuit, and determining, based on the measured drive current of the reference...
7072780 Impedance standard substrate and correction method for vector network analyzer  
An Impedance standard substrate for adjusting a vector network analyzer mainly comprises a fixer and a flexible tape, wherein the vector network analyzer has a plurality of pairs of probes...
7058533 Calibration of memory circuits  
Memory circuits are calibrated by adjusting memory circuit output parameters based on data eye measurements. Data eye patterns of memory circuit outputs are measured by the memory controller for...
7054771 Bus line current calibration  
Disclosed herein is a method and system for calibrating line drive currents in systems that generate data signals by varying line drive currents and that interpret the data signals by comparing...
7054776 Apparatus for use in calibrating a VNA  
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...
7050917 Method for selectively reconfiguring a sensor according to applicable sensing requirements and reconfigurable sensor  
Reconfigurable sensor and method for selectively reconfiguring a sensor are provided. The reconfiguration of the sensor may be performed according to applicable requirements for sensing the...
7047144 Ion detection in mass spectrometry with extended dynamic range  
In a method for optimizing an ion detector a control voltage, such as in a mass spectrometry system, an array of mass scan data is acquired. Based on the size of the largest peak in the array or...
7043386 Potentiometer providing a high resolution  
A high resolution potentiometer implemented using at least two digital potentiometers connected in parallel. Each digital potentiometer is controlled to provide a corresponding resistance value,...
7036029 Conserving power of a system on a chip using speed sensing  
A method for conserving power begins by measuring processing speed of at least a portion of an integrated circuit (IC) to produce measured processing speed. The portion of the IC may be a test...

Matches 151 - 200 out of 379 < 1 2 3 4 5 6 7 8 >