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Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 8112238 | Method of alignment for radio frequency measurement instrument and measurement instrument including same A method is provided for aligning a measurement instrument that includes a tunable filter. The method includes: (i) applying an output signal of an internal noise source of the measurement instrument to the input of the tunable filter, (ii) applying a control signal... | 02/07/2012 |
| 8103473 | Test and measurement instrument and method of calibrating A test and measurement instrument and a method of calibrating the test and measurement instrument including a reference signal generator; multiple input channels; and multiple input circuits. Each input channel is coupled to a corresponding input circuit; and one of... | 01/24/2012 |
| 8073647 | Self calibrating cable for high definition digital video interface A High Definition Multi-Media Interface (HDMI) cable may exhibit frequency dependent signal attenuation, inter symbol interference, and inter-pair skew. A boost device integrated with the cable can compensate for such impairments of the cable. A self calibrating cab... | 12/06/2011 |
| 8046186 | Method and system for tuning precision continuous-time filters Described embodiments provide a method for calibrating a continuous-time filter having at least one adjustable parameter. A square-wave signal is filtered by a continuous-time filter having a cutoff frequency less than fs. The filtered signal is quantized at the rat... | 10/25/2011 |
| 8036847 | Maximum information capture from energy constrained sensor nodes Adaptable self-powered sensor node and methods of operation providing real-time monitoring and management of node operation. The adaptable self-powered sensor node incorporates an adaptable generator and a radio transmitter to operate remotely without the need for p... | 10/11/2011 |
| 8027799 | Digital potentiometer system A system or circuit for simulating a potentiometer, thermistor, or the like. A pulse stream, having a duty cycle which is varied as a changing pulse width or as a differing number of time slices per time period, may be input to the system. The pulse stream to a tran... | 09/27/2011 |
| 8019564 | Systems and methods for calibrating the loop bandwidth of a phase-locked loop (PLL) A method for calibrating the loop bandwidth of a phase-locked loop (PLL) is described. At least one resistor in the PLL filter is tuned in accordance with the frequency of an input reference signal. One or more capacitors in the PLL filter are tuned in accordance wi... | 09/13/2011 |
| 8019565 | Parameter correction circuit and parameter correction method In a parameter correction circuit in an LSI, a reference resistor element with high precision having a resistance value set to a target value is connected to an external terminal of the LSI. A constant current from a mirror circuit connected to a current supply flow... | 09/13/2011 |
| 7991573 | Integrated circuit including calibration circuit One embodiment provides an integrated circuit including a first circuit, a second circuit, and a third circuit. The first circuit is configured to provide a calibrated signal. The second circuit is configured to low pass filter the calibrated signal and provide a fi... | 08/02/2011 |
| 7970567 | Self calibrating cable for a high definition digital video interface An HDMI cable may exhibit frequency dependent signal attenuation, inter symbol interference, and inter-pair skew. A boost device integrated with the cable can compensate for such impairments of the cable. A self calibrating cable with a boost device of the embodimen... | 06/28/2011 |
| 7908107 | Line-reflect-reflect match calibration A method of compensating a calibration for a vector network analyzer includes performing calibrations on at least a pair of ports to determine error terms associated with each port wherein at least one of the error terms is based upon selecting the reactance of the ... | 03/15/2011 |
| 7885779 | Measurement error correcting method and electronic component characteristic measurement device A measurement error correcting method and electronic component characteristic measuring device capable of accurately coping with an electronic component which includes nonsignal line ports and whose electrical characteristics are changed by a jig. The method include... | 02/08/2011 |
| 7869973 | Calibration circuit To include a first replica buffer that has substantially the same circuit configuration as a pull-up circuit which constitutes an output buffer and a second replica buffer that has substantially the same circuit configuration as a pull-down circuit which constitutes... | 01/11/2011 |
| 7860678 | Apparatus and method for automated adjustment and setting of APD optical receiver operation point A method for automated calibration of an avalanche photodiode receiver includes measuring two values of avalanche photodiode biases at two successive times, measuring and comparing a bit error rate corresponding to each value. When the bit error rate of the second v... | 12/28/2010 |
| 7801696 | 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 control signal, an OCD operation signal and plural data, a code generator... | 09/21/2010 |
| 7761253 | Device, method, program, and recording medium for error factor measurement, and output measurement device and input measurement device provided with the device for error factor measurement Measurement of error factors of a signal source when a connection tool is connected to a signal source whether error factors of the connection tool are known or not is enabled. There is provided an error factor measurement device including a connection tool characte... | 07/20/2010 |
| 7742893 | Calibration circuit for calibrating an adjustable capacitance of an integrated circuit having a time constant depending on said capacitance A calibration circuit calibrates an adjustable capacitance of a circuit having a time constant depending on the adjustable capacitance. The calibration circuit outputs a calibration signal carrying information for calibrating the capacitor and includes a calibration... | 06/22/2010 |
| 7725281 | Method for pole-zero adjustment in radiation measurement systems A method for automatic Pole-Zero adjustment in a radiation measurement system, the method including steps of: receiving a plurality of pulses from a radiation detector; for each of the plurality of pulses, synthesizing a multiple-peak pulse shape; and using the ampl... | 05/25/2010 |
| 7716001 | Delay line calibration A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple times so that the cumulative delay of the signal through the delay lin... | 05/11/2010 |
| 7680618 | Random edge calibration of oversampling digital acquisition system A calibration method for an oversampling acquisition system uses a digital calibration signal that has a period between edges that is unrelated to the period of a sample clock. The calibration signal in input in parallel to a plurality of samplers, each of which is ... | 03/16/2010 |
| 7643956 | Continuous self-calibration of internal analog signals A method and apparatus for monitoring and adjusting an analog signal of an operating circuit. The apparatus includes a control circuit, an analog-to-digital converter, and a comparator. The control circuit has an analog generator for generating the analog signal and... | 01/05/2010 |
| 7610164 | System and method of constant power biasing circuit A system is provided to adjust a separation distance between a read/write sensing head and a data storage medium surface in a hard disk. The thermal expansion of the sensing head based on heat generated by power dissipated through the sensing head is precisely contr... | 10/27/2009 |
| 7574317 | Method for calibrating a filter, a calibrator and system including the same An example embodiment provides a method for calibrating an active RC filter and RC time constant calibrator for an active RC filter. The RC time contact calibrator includes a RC timer and a calibration code generator. The RC timer outputs a holding signal based on a... | 08/11/2009 |
| 7567881 | Self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers A method of digitally correcting the raw output voltage from a Capacitive Voltage Transformer (CVT) with the intent to remove transient components impacting on transient accuracy of protection function. A typical CVT is represented using three parameters in the line... | 07/28/2009 |
| 7561979 | Device and method for calibrating data processing apparatus by tuning firmware trim value A method for calibrating a data processing apparatus to set a target firmware trim value is disclosed. The data processing apparatus is for converting a non-test pattern to a non-test output according to the target firmware trim value under a normal mode. The method... | 07/14/2009 |
| 7558692 | Consumption current balance circuit, compensation current amount adjusting method, timing generator, and semiconductor testing apparatus A consumption current balance circuit reduces the layout area and suppresses the deterioration of accuracy of a delay time caused by a temperature variation due to a power variation of a delay circuit itself or caused by a load variation of a power supply. The consu... | 07/07/2009 |
| 7552023 | Parameter correction circuit and parameter correction method In a parameter correction circuit in an LSI, a reference resistor element with high precision having a resistance value set to a target value is connected to an external terminal of the LSI. A constant current from a mirror circuit connected to a current supply flow... | 06/23/2009 |
| 7542866 | Threshold setting for a radar level transmitter Disclosed is a method and apparatus for setting threshold values for use by a radar level transmitter to detect reflected wave pulses corresponding to portions of a transmitted microwave pulse which reflect from interfaces contained in a container. The present inven... | 06/02/2009 |
| 7532993 | Device providing trim values Devices including trimmable electric units and methods for providing trim values to electric units. A device includes a trimmable electric unit, at least one fuse to provide at least one first trim value, and a trim value provision unit to provide at least one secon... | 05/12/2009 |
| 7523009 | Control of instruments An instrument, in particular an electron microscope, has at least one user controllable operating parameter and at least one further operating parameter having a required value at least partially dependent on that of the user controllable parameter. A number of poss... | 04/21/2009 |
| 7512506 | IC chip stress testing Methods, systems and program products are disclosed for performing a stress test of a line in an integrated circuit (IC) chip. One embodiment of the method includes: applying a constant current Is to the line; and stress testing the line while applying th... | 03/31/2009 |
| 7509222 | Calibration techniques for imaging devices The invention is directed to various calibration techniques for calibrating an imagining device such as a display device, a printer, or a scanner. The techniques may involve characterizing the imaging device with a device model such that an average error between exp... | 03/24/2009 |
| 7509223 | Read-side calibration for data interface Circuits, methods and apparatus are provided to reduce skew among signals being received by a data interface. Signal path delays are varied such that data and strobe signals received at a memory interface are calibrated or aligned with each other along a rising and/... | 03/24/2009 |
| 7480581 | Calibrating a testing device Calibrating automatic test equipment (ATE) includes adding jitter to a test signal to produce a jittered signal, sampling the jittered signal to produce digital values, generating a reconstructed jittered signal from the digital values, determining an amount of jitt... | 01/20/2009 |
| 7467056 | Method and apparatus for aligning multiple outputs of an FPGA Each data lane connected to a FPGA and forming part of a SFI channel may be trained independently to enable the outputs from the FPGA to be aligned. In operation, a known fixed pattern is repeated on each of the data lanes with the exception of the data lane being t... | 12/16/2008 |
| 7440861 | Concept of compensating for piezo influences on integrated circuitry The inventive circuitry on a semiconductor chip includes a first functional element having a first electronic functional-element parameter that exhibits a dependence relating to the mechanical stress present in the semiconductor circuit chip in accordance with a fir... | 10/21/2008 |
| 7437260 | Concept of compensating for piezo influences on integrated circuitry A semiconductor chip includes a first functional element having a first electronic functional-element parameter exhibiting a dependence relating to the mechanical stress present in the semiconductor circuit chip, and being configured to provide a first output signal... | 10/14/2008 |
| 7428465 | Testing control methods for use in current management systems for digital logic devices Systems and methods for Current Management of Digital Logic Devices are provided. In one embodiment a method for calibrating a digital logic circuit current management system is provided. The method comprises activating one or more synchronous logic paths of a plura... | 09/23/2008 |
| 7414450 | System and method for adaptive power supply to reduce power consumption A system and method for adaptively providing a power supply voltage. The system includes an oscillator configured to receive an output voltage and generate a firs signal. The first signal is associated with a first frequency and a first period. Additionally, the sys... | 08/19/2008 |
| 7412341 | Jitter amplifier, jitter amplification method, electronic device, testing apparatus, and testing method There is provided a jitter amplifier for amplifying or attenuating a jitter component contained in an input signal, having a jitter demodulating section for demodulating the jitter component from the input signal and an amplifying circuit for amplifying or attenuati... | 08/12/2008 |
