Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7969162 | Method and device for dynamic adjustment of network operating voltage The present invention is to provide a method and device of dynamically adjusting the operating voltage of a network integrated circuit including the steps of detecting and ranking the signal-to-noise ratio of N ports to single out a port for arbitration, dynamically... | 06/28/2011 |
| 7839152 | Method and device for dynamic adjustment of network operating voltage The present invention is to provide a method and device of dynamically adjusting the operating voltage of a network integrated circuit including the steps of detecting and ranking the signal-to-noise ratio of N ports to single out a port for arbitration, dynamically... | 11/23/2010 |
| 7804304 | Method for measuring the noise figure of a device under test with a network analyser A method for measuring the noise factor (FDUT) of a device under test, which requires exclusively a network analyzer. The noise factor (FDUT) is calculated from the internal noise (NNWA) of the network analyzer determined in a calibr... | 09/28/2010 |
| 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 |
| 7397865 | Systems and methods of using IQ modulation for calibration or measurement A system analyzer may generate an estimated frequency response of a device, system, communication medium, or combination thereof by utilizing a stimulus signal that is robust against IQ modulator impairments. A stimulus generator may be used to generate a plurality ... | 07/08/2008 |
| 7340218 | Pulsed signal device characterization employing adaptive nulling and IF gating A receiver channel, test system and method employ adaptive nulling to filter a targeted frequency component from a pulsed signal to produce a filtered pulsed signal. The filtered pulsed signal facilitates measuring pulsed performance parameters of a device under tes... | 03/04/2008 |
| 7315172 | Method for measuring spectral noise densities beyond instrument capability with deterministic confidence levels A mechanism for measuring noise densities below the noise floor of a measuring instrument. The measuring instrument may first acquire a fully-averaged reference spectral noise density trace and estimate corresponding reference statistical parameters. Based on the re... | 01/01/2008 |
| 7312738 | Apparatus and method for sigma delta signal treatment A sigma delta signal treating apparatus includes: (a) a low pass filtered signal path including at least one low pass filter; and (b) a quantization noise filtered signal path coupled with the low pass filtered signal path; the quantization noise filtered signal pat... | 12/25/2007 |
| 7279907 | Method of testing for power and ground continuity of a semiconductor device A method of testing for power and ground continuity of a semiconductor device having Input and Output (IO) pins and at least a pair of power and ground pins includes identifying the power and ground pins of the device. A victim pin is selected from the IO pins of th... | 10/09/2007 |
| 7263122 | Receiver based decision feedback equalization circuitry and techniques In one aspect, the present invention is directed to a technique of, and circuitry and system for enhancing the performance of data communication systems using receiver based decision feedback equalization circuitry. In one embodiment, the equalization circuitry and ... | 08/28/2007 |
| 7260507 | Method for improving the performance accuracy in differential absorption lidar for oil and gas pipeline leak detection and quantification An improved method for determining whether a measurement point, measured using a differential absorption LIDAR (DIAL) system, represents a plume point or a non-plume point. Concentration path lengths (CPL's) for a plurality of measurement points are determined. An a... | 08/21/2007 |
| 7250626 | Probe testing structure A calibration structure for probing devices. ... | 07/31/2007 |
| 7248980 | Method and apparatus for removing quantization effects in a quantized signal One embodiment of the present invention provides a system that reconstructs a high-resolution signal from a set of low-resolution quantized samples. During operation, the system receives a time series containing low-resolution quantized signal values which are sampl... | 07/24/2007 |
| 7065465 | Method and system for multi-sensor data fusion A multi-sensor data fusion system and method provides adaptive weighting of the contributions from a plurality of sensors in the system using an additive calculation of a sensor reliability function for each sensor. During a predetermined tracking period, data is re... | 06/20/2006 |
| 7035324 | Phase-noise measurement with compensation for phase noise contributed by spectrum analyzer A method and apparatus compensates for phase noise added by a spectrum analyzer from phase noise measurements of a signal under test (SUT) taken by the spectrum analyzer. The method comprises the steps of measuring the phase noise of the SUT, determining the added p... | 04/25/2006 |
| 7012772 | Sampled amplitude read channel employing an adaptive non-linear correction circuit for correcting non-linear distortions in a read signal A sampled amplitude read channel is disclosed for magnetic disk storage systems comprising an adaptive non-linear correction circuit for correcting non-linear distortions in the read signal, such as asymmetry caused by the non-linear response of a magneto-resistive ... | 03/14/2006 |
| 7010443 | Noise measurement system and method Noise power is measured within one or more designated frequency bands of an applied signal. The measurement includes frequency translating the applied signal by a set of equally spaced frequencies to form a corresponding set of intermediate frequency signals, measur... | 03/07/2006 |
| 6987391 | Apparatus for and method of synchronous rejection Methods of improving a signal to noise ratio using synchronous rejection are enclosed. Also disclosed are various synchronous rejection systems. In one method of synchronous rejection, the method includes correlating a phase of a reference signal to a phase of the i... | 01/17/2006 |
| 6980915 | Phase noise compensation for spectral measurements A system and method compensate for phase noise of a spectrum analyzer based on an established model of the phase noise that accommodates a variety of operating states of the spectrum analyzer. The model is used to form an array that is applied to extract an output s... | 12/27/2005 |
| 6965242 | Procedure and apparatus for the determination of the noise level of an electronic object to be measured An apparatus for the determination of the magnitude of a noise (TDUT) of an electronic object to be measured (2) includes a sine signal source (1), which generates a sine signal (Sin) for input into said object to be measured (... | 11/15/2005 |
| 6944566 | Method and system for multi-sensor data fusion using a modified dempster-shafer theory A multi-sensor data fusion system and method provide an additive fusion technique including a modified belief function (algorithm) to adaptively weight the contributions from a plurality of sensors in the system and to produce multiple reliability terms including re... | 09/13/2005 |
| 6781386 | Method and device for measuring a line attenuation Accordingly, the invention relates to a process and a device for measuring the attenuation of a line where the measurement process according to the invention makes it possible to measure the attenuation of a line at a given frequency F and includes at least the step... | 08/24/2004 |
| 6782246 | Method for producing a test signal An apparatus and method are described for producing a test signal with a desired signal-to-noise ratio on a selectable output frequency for measuring a transmission system. A carrier signal, generated from a carrier signal, and a noise signal are remixed with the ca... | 08/24/2004 |
| 6737874 | Fault and noise tolerant system and method A fault and noise tolerant system and method for obtaining an original signal which is not influenced by a fault or noise occurring in an electronic equipment. The fault and noise tolerant system includes a first estimation filter for estimating an original signal f... | 05/18/2004 |
| 6710605 | Method and apparatus for detecting valid signal information An apparatus and method for detecting the presence of a valid signal includes an offset generator coupled to a pair of data slicers and an XOR gate. The offset generator is configured to both add and subtract a predetermined voltage to an input voltage in its two ou... | 03/23/2004 |
| 6691262 | Method and apparatus for quality evaluation of cable circuit A cable line quality evaluating method for evaluating a quality of a cable line for transmitting a digital modulation signal in a bidirectional manner comprises the steps of extracting a noise signal of an upstream line from one of a cable line connection... | 02/10/2004 |
| 6650124 | Method for checking an occurrence of a signal component and device to perform the method In order to check an occurrence of a signal component in an input signal, a method and a device is provided. The method comprises the steps of generating a measure for the frequency of the input signal from the input signal, determining a variance of the ... | 11/18/2003 |
| 6611794 | Signal amplitude restoration apparatus and method An apparatus for signal amplitude restoration has a received signal input and a scaled received signal output. An amplitude correction factor generator has an estimated signal-to-noise power ratio input and a received signal input. A variable gain amplifi... | 08/26/2003 |
| 6470485 | Scalable and parallel processing methods and structures for testing configurable interconnect network in FPGA device Configurable interconnect resources of field programmable gate arrays (FPGA's) are tested by configuring at least some of the lookup tables (LUT's), registers and input signal acquirers to implement one or more sequential state machines that feed back the... | 10/22/2002 |
| 6442495 | Average signal to noise ratio estimator The present invention is a system and method of use for a computer-implemented signal-to-noise-ratio (SNR) estimation process for aiding in signal demodulation and message recovery or as an indication of recovered message fidelity. The SNR estimator produ... | 08/27/2002 |
| 6397160 | Power sensor module for microwave test systems A module for use in automatic test equipment is disclosed. The module is especially useful for performing power measurements on high frequency devices. The module includes a power sensor and a plurality of EEPROM's that store reflection coefficient data f... | 05/28/2002 |
| 6268735 | Noise source module for microwave test systems A module for use in automatic test equipment is disclosed. The module is especially useful for measuring noise parameters of high frequency devices. The module includes a noise generator and a plurality of EEPROM's that store reflection coefficients and E... | 07/31/2001 |
| 6191571 | Measuring method by spectrum analyzer A measuring device and method use a spectrum analyzer. The spectrum analyzer comprises a display screen controlled by a processor on which a spectrum of an input signal is displayed in a frequency region on a half portion of the display screen and a noise... | 02/20/2001 |
| 6114858 | System for measuring noise figure of a radio frequency device Noise factor of a radio-frequency device under test (DUT) is determined by driving the input of the DUT with a randomly modulated sine wave and measuring the power of a resulting DUT OUTPUT signal within each of a set of equally-sized frequency bands. The... | 09/05/2000 |
| 6092027 | Apparatus for detecting and recording a conduction noise, a radiation electromagnetic field noise and a discharge noise A noise detecting and recording apparatus which can be widely used for countermeasures against malfunction of electronic equipment which is caused by noises is provided. The apparatus is provided with a unit for outputting data corresponding to the level ... | 07/18/2000 |
| 6061393 | Non-invasive digital cable test system Method and apparatus for non-invasive testing of digital communications systems. Amplitude measurements are made for multiple frequencies of a multi-frequency communication system, converted to the time domain. An adaptive filter output is matched to the ... | 05/09/2000 |
| 5980708 | High sensitivity multiple waveform voltammetric instrument A high sensitivity multiple waveform voltammetric method and instrument are provided for use in electrochemical and other applications. The method consists of applying one or several variable potential excitation signals between electrodes of an electroch... | 11/09/1999 |
| 5969834 | Method and apparatus for monitoring wavelength multiplexed optical signals One method of determining the signal to noise ratio of an optical signal models the noise floor based on amplified spontaneous emission (ASE) which is accumulated along the link. The ASE wavelength dependence is represented by a known mathematical functio... | 10/19/1999 |
| 5942902 | Method of measuring delay time and random pulse train generating circuit used in such method A delay time of a delay time generating circuit which delays an inputted pulse signal for a predetermined time and outputs the delayed pulse signal is measured. A random pulse generating circuit for outputting a train of pulses at random intervals is prov... | 08/24/1999 |
| 5875230 | Interactive measurement system and method for telecommunication networks A measurement system and method for a telecommunication systems diagnoses problems within a communication line. The measurements are performed both non-intrusively and intrusively in an interactive manner, and evaluate the transmission quality of the comm... | 02/23/1999 |
