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Calibration patents



      
           
This page is updated frequently with new Calibration-related patent applications. Subscribe to the Calibration RSS feed to automatically get the update: related Calibration RSS feeds. RSS updates for this page: Calibration RSS RSS


Variable orifice spray head of liquid delivery system and calibration system

Wearable device with capacitive sensor and method of operation therefor

Method and arrangement for determining an overhydration parameter or a body composition parameter

Date/App# patent app List of recent Calibration-related patents
08/28/14
20140244200
 Magnetometer calibration patent thumbnailnew patent Magnetometer calibration
A real-time calibration system and method for a mobile device having an onboard magnetometer uses an estimator to estimate magnetometer calibration parameters and a magnetic field external to the mobile device (e.g., the earth magnetic field). The calibration parameters can be used to calibrate uncalibrated magnetometer readings output from the onboard magnetometer.
08/28/14
20140244199
 Method of determining information of a test sensor patent thumbnailnew patent Method of determining information of a test sensor
A method of determining auto-calibrating information of a test sensor includes providing an optical read head that includes a light source, a light guide and a detector. The read head forms an opening that is sized to receive a test sensor.
08/28/14
20140244198
 Calibration of a chemical sensor in a portable electronic device patent thumbnailnew patent Calibration of a chemical sensor in a portable electronic device
In a method for calibrating a portable first electronic device (1) comprising a first chemical sensor, a determination is carried out whether the first electronic device is located near a second electronic device comprising a second chemical sensor. If this is the case and if optionally other criteria are fulfilled, readings of the first and second chemical sensor are compared.
08/28/14
20140244158
 Method and apparatus for providing navigational guidance using the states of traffic signal patent thumbnailnew patent Method and apparatus for providing navigational guidance using the states of traffic signal
A method and apparatus for predicting traffic on a transportation network where real time data points are missing. In one embodiment, the missing data is estimated using a calibration model comprised of historical data that can be periodically updated, from select links constituting a relationship vector.
08/28/14
20140244071
 Adaptive vibration control for ski patent thumbnailnew patent Adaptive vibration control for ski
A method and apparatus for controlling of ski vibration consisting an accelerator/actuator sub-system attached to the ski and a adaptive vibration control application residing in the user smart-phone and communicating with the accelerometer/actuator sub-system over bluetooth radio interface is disclosed. The adaptive vibration control application extracts vibration frequencies and amplitudes from signal received from an accelerometer, separates such frequencies according to their types—bending or torsional, and after thresholding and scaling by the ski calibration parameters and by the user desired ski response, apply such signal to the control loop and consequently to the actuators to provide vibration dampening force.
08/28/14
20140243699
 Method and arrangement for determining an overhydration parameter or a body composition parameter patent thumbnailnew patent Method and arrangement for determining an overhydration parameter or a body composition parameter
A method and an arrangement for determining an overhydration parameter or a body composition parameter are disclosed. The method comprises: obtaining first bioimpedance measurement data of a patient from a first type of hioimpedance measurement (204), deriving bioimpedance calibration data from the first bioimpedance measurement data for calibrating second hioimpedance measurement data from a second type of bioimpedance measurement (205), obtaining the second bioimpedance measurement data from a second bioimpedance measurement of the patient (206), and calibrating the second bioimpedance measurement data using the calibration data to determine the overhydration parameter or the body composition parameter of the patient (207)..
08/28/14
20140243697
 Respiratory phase determination apparatus, respiratory phase determination method and respiratory phase determination program patent thumbnailnew patent Respiratory phase determination apparatus, respiratory phase determination method and respiratory phase determination program
Disclosed is a respiratory phase determination apparatus enabling a respiratory phase determination robust to personal differences in respiration among subjects and fluctuations in respiration of subjects in person without any need for calibration. The apparatus includes a first period feature value extraction section that extracts a first period feature value representing a feature of a first breath sound in a respiratory period, a second period feature value extraction section that extracts a second period feature value representing a feature of a second breath sound in the respiratory period, a feature value relativization/combining section that relativizes the first and the second period feature values and calculates a combined feature value, and a respiratory phase determination section that compares combined feature values of two neighboring respiratory periods and determines whether the two respiratory periods are each an inspiratory phase or expiratory phase based on the comparison result and a predetermined datum..
08/28/14
20140243692
 Device for adaptive processing of an endocardial acceleration signal patent thumbnailnew patent Device for adaptive processing of an endocardial acceleration signal
A device, for adaptive processing of an endocardial acceleration signal, continuously collects an endocardial acceleration ea signal and divides it into ea sub-signals, each over the duration of one cardiac cycle. The ea sub-signals are separated into the ea1 and ea2 components.
08/28/14
20140243661
 Imaging systems featuring waveguiding compensation patent thumbnailnew patent Imaging systems featuring waveguiding compensation
In certain embodiments, the invention relates to systems and methods for altering an image to compensate for variation in one or more physical and/or supervenient properties (e.g., optical absorption and/or scattering) in heterogeneous, diffuse tissue, thereby attenuating the effects of tissue waveguiding. The methods enable the proper identification of emission image regions that evidence waveguiding of electromagnetic radiation, and enables compensation of emission images for such waveguiding.
08/28/14
20140243658
 Computer-implemented technique for calculating a position of a surgical device patent thumbnailnew patent Computer-implemented technique for calculating a position of a surgical device
A computer-implemented technique for calculating a position of a surgical device relative to a patient region imaged by an imaging device is described. One of the surgical device and the imaging device has a predetermined first positional relationship to a marking, and a first camera having a field of view that includes the marking has a predetermined second positional relationship to the other device.
08/28/14
20140243638
new patent Analyte sensor calibration management
Methods and devices to detect analyte in body fluid are provided. Embodiments include positioning an analyte sensor in fluid contact with an analyte, detecting an attenuation in a signal from an analyte sensor after positioning during a predetermined time period, categorizing the detected attenuation in the analyte sensor signal based, at least in part, on one or more characteristics of the signal, performing signal processing to generate a reportable data associated with the detected analyte sensor signal during the predetermined time period, managing if and when to request additional reference signal measurements, and managing if and when to temporarily not display results..
08/28/14
20140243632
new patent Age calibration for tissue oximetry
A system (100) includes a sensor (12a/b/c), a processor (32), and an output module (38). The sensor can have at least one light emitter (16a) and at least one light detector (18a/b).
08/28/14
20140243500
new patent Calibration and normalization systems and methods for radiopharmaceutical synthesizers
The present invention relates to calibration and normalization systems and methods for ensuring the quality of radiopharmaceuticals during the synthesis thereof, such as radiopharmaceuticals used in positron emission tomography (pet) and single-photon emission computed tomography (spect).. .
08/28/14
20140242937
new patent Instrument lo used as alignment signal source
A system can include an input signal source, a local oscillator (lo), and an intermediate frequency (if) receiver to receive an input signal from the input signal source and an lo signal from the lo. The if receiver can include a switch to switch between the first and second inputs to provide an output.
08/28/14
20140242914
new patent Method and apparatus for calibrating multiple antenna arrays
A method includes transmitting a calibration command to multiple antenna arrays. Each antenna array includes a plurality of antenna elements, a plurality of transmitter and receiver channels, and a calibration circuit comprising a calibration receiver and a calibration transmitter.
08/28/14
20140241905
new patent Positive displacement pump with pressure compensating calibration
Illustrative embodiments of positive displacement pumps utilizing pressure compensating calibration, as well as related systems and methods, are disclosed. In one illustrative embodiment, a method of operating a positive displacement pump includes sensing, with a pressure sensor disposed at a fluid outlet of the positive displacement pump, a back pressure at the fluid outlet, transmitting a pressure signal associated with the sensed back pressure from the pressure sensor to a controller of the positive displacement pump, and identifying, on the controller, a volume of fluid pumped by the positive displacement pump using the pressure signal..
08/28/14
20140241590
new patent Method and apparatus for particle size determination
A computer-implemented method of determining particle size and a computer-readable medium storing instructions to execute such a method are presented. The method entails obtaining an image of at least one particle and a calibration mark, wherein the particle and the calibration mark were captured using the same lens, correcting the image for distortion effects to generate a corrected image, wherein the same correction factor is applied to both the particle and the calibration mark, and determining a size of the particle using the corrected image.
08/28/14
20140241482
new patent Inspection method and inspection device
There is provided an inspection device for inspecting an inner surface of a nozzle provided in a reactor vessel. The inspection device includes: a device frame, an inspection unit provided on the device frame, an inspection unit push-out moving mechanism for pushing out and moving the inspection unit to the inner surface of the nozzle, a rotation moving mechanism for rotating and moving the inspection unit, a calibration test unit arranged on the device frame for calibrating the inspection unit; and a calibration test unit forward/backward moving mechanism for moving the calibration test unit forward or backward in the direction along the central axis with regard to a track where the inspection unit makes push-out movement..
08/28/14
20140241410
new patent Iq baseband matching calibration technique
The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples.
08/28/14
20140241082
new patent Auto-calibration for high speed input/output
A delay and calibration circuit for an input/output determines an appropriate delay by trying a range of different delays, and for each delay, determining the number of times that a given data sequence is accurately received. The data sequence may be a command, address, host data, or other data.
08/28/14
20140240871
new patent Interface voltage control operating point determination in a hard disk drive
Approaches for an interface voltage control (ivc) system in a hard-disk drive (hdd), whereby the ivc operating point determination scheme utilizes non-contact spacing signals for calibration of ivc. While applying a series of input voltages to a slider, head-disk spacing signals are monitored, such as spacing signals from an embedded contact sensor or wallace spacing loss spacing signals.
08/28/14
20140240865
new patent Dynamically controlling magnetoresitive bias
Magnetoresistive (mr) bias is dynamically controlled in a tape drive using a processor device. Median tape head amplitude is monitored during a calibration operation, as measured across all tracks of the tape head, against predetermined thresholds of the tape drive for determining if the median tape head amplitude is below the threshold value.
08/28/14
20140240696
new patent Method for calibrating the position of the slitter blades of a slitter-winder
The positions of the slitter blades of a slitter-winder are calibrated using a laser to perform measurement and calibration of the fiber web cutting point of each slitter blade pair. Measurement and calibration is preformed on the top slitter blade of each of a multiplicity of slitter blade pairs one after another.
08/28/14
20140240690
new patent Determining extrinsic calibration parameters for a sensor
A method of determining extrinsic calibration parameters for at least one sensor (102, 104, 106) mounted on transportable apparatus (100). The method includes receiving (202) data representing pose history of the transportable apparatus and receiving (202) sensor data from at least one sensor mounted on transportable apparatus.
08/28/14
20140240675
new patent Systems and methods for improved ease and accuracy of gaze tracking
Methods for improving gaze tracking are presented. These methods eliminate the need for a separate initial calibration step to determine whether the subject is properly centrally fixated during testing.
08/28/14
20140240562
new patent Integrated multi-channel analog front end and digitizer for high speed imaging applications
A module for high speed image processing includes an image sensor for generating a plurality of analog outputs representing an image and a plurality of hdds for concurrently processing the plurality of analog outputs. Each hdd is an integrated circuit configured to process in parallel a predetermined set of the analog outputs.
08/28/14
20140240520
new patent System and method for calibration of machine vision cameras along at least three discrete planes
This invention provides a system and method for generating camera calibrations for a vision system camera along three discrete planes in a 3d volume space that uses at least two (e.g. Parallel) object planes at different known heights.
08/28/14
20140240389
new patent Media width-based calibration pattern placement
In an embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to measure a width of a first-sized media page and determine a length that corresponds with the width. Based on the length, a bottom end of the first-sized media page is located, and a calibration pattern is printed in a first page region located relative to the bottom end of the first-sized media page..
08/28/14
20140240377
new patent Deterioration-detecting circuit, display device, and performance deterioration-detecting method
A reference luminescence amount-acquiring unit of a display device obtains reference brightness corresponding to a bl drive value detected by a drive value-detecting unit and a temperature detected by a temperature-detecting unit. A deterioration-detecting unit calculates an initial status value based on a ratio of reference brightness obtained based on a temperature and a bl drive value in an initial status and brightness in the initial status detected by a luminescence amount-detecting unit, and stores the initial status value.
08/28/14
20140240212
new patent Tracking device tilt calibration using a vision system
A system and method for displaying digital graphics on a computer's display are disclosed. The method includes the steps of connecting a vision system to the computer, wherein the vision system is adapted to monitor a visual space.
08/28/14
20140240152
new patent Calibration systems and methods for digital-to-analog converter
Circuits, methods, non-transitory storage media can be configured to reduce calibration errors in a signal converter. A digital-to-analog converter can include a calibration circuit configured to calibrate a digital-to-analog converter (dac) bit element using a residual error from a previously calibrated digital-to-analog converter (dac) bit element.
08/28/14
20140239982
new patent Wearable device with capacitive sensor and method of operation therefor
A wearable device includes a capacitive sensor and capacitance sensing and calibration logic operative to determine that component drift for a capacitive sensor cannot be determined based on a capacitance sensed by the capacitive sensor. The capacitance sensing and calibration logic deactivates a drift calibration operation for the capacitive sensor while the capacitive sensor senses the capacitance.
08/28/14
20140239179
new patent Sealed infrared imagers
The architecture, design and fabrication of array of suspended micro-elements with individual seals are described. Read out integrated circuit is integrated monolithically with the suspended elements for low parasitics and high signal to noise ratio detection of changes of their electrical resistance.
08/28/14
20140239082
new patent Variable orifice spray head of liquid delivery system and calibration system
A liquid delivery system includes an engine and a hydraulic circuit, which includes a hydraulic pump driven by the engine and a hydraulic motor driven by the hydraulic pump. A liquid pump is driven by the hydraulic motor and is configured to provide pressurized liquid along a liquid conduit.
08/28/14
20140238855
new patent Sensor for fluid-soluble gas
For measuring concentrations of fluid-soluble gases with improved drift stability and low production costs, thus dispensing with tedious calibration and/or drift correction routines and re-membraning procedures, a sensor and a system are provided, comprising at least two electrodes, which are covered by sensor fluid at at least one detection site; and an ion-balancing means (50), for example a mixed-bed ion-exchange resin, in contact with the sensor fluid for removing polluting ions.. .
08/28/14
20140238670
new patent Downhole measurement of formation characteristics while drilling
Methods and apparatus for acquiring mud gas logging data, comparing the mud gas logging data to second data associated with a sidewall fluid sample measurement, and adjusting calibration data associated with a mud gas logging tool based on the comparison of the mud gas logging data and the second data associated with the sidewall fluid sample measurement.. .
08/28/14
20140238101
new patent System and method for automatically adjusting gas sensor settings and parameters
An automatic sensor excitation voltage adjustment feature, a multi-range concentration feature, a single calibration feature and a barrier circuit feature. The automatic sensor excitation voltage adjustment feature includes a transmitter having a transmitter microprocessor that provides an initial voltage to a sensor having a sensor microprocessor.
08/28/14
20140238100
new patent Method for calibration of sensors embedded or wirelessly connected to a mobile device
Methods, systems, computer-readable media, and apparatuses for obtaining accurate gas sensor data are presented. A mobile device may receive gas sensor data from at least one gas sensor.
08/21/14
20140237302
Characterization and functional test in a processor or system utilizing critical path monitor to dynamically manage operational timing margin
Guardband validation for a device having a critical path monitor involves first applying multiple calibration settings to the monitor during functional operation of the processor, and recording corresponding guardbands which result in reduced timing margin. A desired guardband can later be selected for validation.
08/21/14
20140236536
Method and apparatus for providing analyte monitoring and therapy management system accuracy
Methods, system and devices for providing improved calibration accuracy of continuous glucose monitoring system based on insulin delivery information are provided.. .
08/21/14
20140236522
Range-dependent bias calibration of an accelerometer sensor system
One embodiment of the invention includes an accelerometer sensor system. The system includes a sensor comprising a proofmass and electrodes and being configured to generate acceleration feedback signals based on control signals applied to the electrodes in response to an input acceleration.
08/21/14
20140236519
Systems and methods for 3-axis accelerometer calibration with vertical sample buffers
Systems and methods for the calibration of 3-axis accelerometers using vertical sample buffers in accordance embodiments of the invention are disclosed. In one embodiment, a telematics system includes a processor, an acceleration sensor, a velocity sensor, and a memory configured to store an acceleration alignment application, wherein the acceleration alignment application configures the processor to receive a velocity information sample using the velocity sensor, determine vehicular acceleration information along at least one vehicle axes using the velocity information sample, receive at least one acceleration sensor acceleration information sample using the acceleration sensor, determine a plurality of vertical vector samples using the vehicular acceleration information, calculate an average vertical vector sample using at least one of the vertical vector samples, and calibrate at least one of the vehicle axes to an acceleration sensor axis using the vehicular acceleration information, the acceleration sensor acceleration sample, and the average vertical vector sample..
08/21/14
20140236518
Systems and methods for low latency 3-axis accelerometer calibration
Systems and methods for low-latency calibration of the alignment of 3-axis accelerometers in accordance embodiments of the invention are disclosed. In one embodiment of the invention, a telematics system includes a processor, an acceleration sensor, a velocity sensor, and a memory configured to store an acceleration alignment application, wherein the acceleration alignment application configures the processor to determine vehicular forward acceleration information and vehicular lateral acceleration information, calculate a lateral acceleration vector, a forward acceleration vector, and a vertical acceleration vector using a forward incline vector and a lateral incline vector determined using the vehicular forward acceleration information and vehicular lateral acceleration information..
08/21/14
20140236488
Computed tomography calibration systems and methods
According to certain embodiments of the invention, computer hardware and software can perform single or dual-energy decomposition calculations and predict ct values for either single-energy or dual energy ct from basis material decomposition estimates derived using theoretical models. Using that information, the computer hardware and software can (among other things) present one dimensional information from a ct scanner, such as representative pixel value, in two dimensions, such as a line in two dimensional basis material space..
08/21/14
20140235974
Integrated calibrant measurement system for analyte sensors
Embodiments of the present invention provide a blood analyte sensing system (10) that includes an integral calibrant concentration measurement system. The blood analyte sensing system includes a blood sensor (22), a calibration system and the calibrant concentration measurement system.
08/21/14
20140235972
Method and apparatus for determination of a measure of a glycation end-product or disease state using tissue fluorescence
Embodiments of the present invention provide an apparatus suitable for determining properties of in vivo tissue from spectral information collected from the tissue. An illumination system provides light at a plurality of broadband ranges, which are communicated to an optical probe.
08/21/14
20140235288
Self calibration of downlink transmit power
Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node.
08/21/14
20140235270
Time of arrival based positioning system
A toa positioning system can be implemented that employs a calculated initial location of a wireless network device. For each of a plurality of reference wireless network devices, a distance between the wireless network device and the reference wireless network device is determined based, at least in part, on a round trip transit time between the wireless network device and the reference wireless network device.
08/21/14
20140235185
Envelope tracking power amplifier system with delay calibration
An envelope tracking power amplifier system time-aligns a supply voltage to an input signal to a power amplifier. The power supply operates in a static mode for low amplitude input signals and operates in a dynamic mode for high amplitude input signals.
08/21/14
20140233944
Optical network terminal (ont) wavelength tuning and correpsonding calibration procedure
Tuning an optical network unit (onu) to an appropriate communication wavelength may be performed by initiating an activation procedure responsive to receiving a wavelength configuration message, and identifying an instruction in the wavelength configuration message to modify a present wavelength used by the network unit to a different wavelength. The process may also provide assigning an optical network unit identifier (onu-id) to the network unit, modifying the present wavelength to the different wavelength, and transmitting subsequent data messages from the network unit at the different wavelength..
08/21/14
20140233932
Lens control device and image sensing device using same
There is provided a lens control device that feeds a motor current to a lens drive motor which drives lens according to the motor current, the lens control device including: a servo computation portion that calculates a motor current setting value such that a deviation of the position of the lens from a target position to which a correction offset has been added is reduced; a motor driver that generates the motor current according to the motor current setting value; and a calibration computation portion that adjusts the correction offset such that an average value of the motor current approaches zero.. .
08/21/14
20140233694
Apparatus and method for angular response calibration of photon-counting detectors in sparse spectral computed tomography imaging
A method for detector angular response calibration in computed-tomography (ct) comprising capturing incident x-ray photons, emitted from an x-ray source, via a plurality of energy-discriminating detectors, determining photon counts of the captured incident x-ray photons in a plurality of energy windows at each energy-discriminating detector, and adjusting the photon counts based on a pre-determined detector angular response calibration look-up table for a given view for each energy-discriminating detector at each energy window.. .
08/21/14
20140233693
Apparatus and method for count loss calibration of photon-counting detectors in spectral computed tomography imaging
A method for photon count-loss calibration in a computed-tomography (ct) scanner, including capturing incident x-ray photons via a plurality of energy-discriminating detectors, determining photon counts of the captured incident x-ray photons in a plurality of energy windows at each energy-discriminating detector, and adjusting the determined photon counts in each energy window for each energy-discriminating detector based on a pre-determined photon count-loss look-up table and the determined photon counts.. .
08/21/14
20140233621
Gsm/edge transmit power calibration and characterized digital predistortion calibration using multi-band multi-channel multi-chain sweep
A method and apparatus for characterized pre-distortion calibration is provided. The method begins with the selection of a number of devices to be characterized.
08/21/14
20140233618
Method and apparatus for self-testing to improve factory throughput
A method and apparatus for self-testing of a radio frequency (rf) chipset is provided. The method requires that a set of test instructions be loaded into a software load station.
08/21/14
20140233352
Velocity models for processing seismic data based on basin modeling
A method of developing a velocity model for processing a seismic dataset is implemented at a computer system having a processor and memory. The method includes: deriving a first velocity model from the seismic dataset; building a basin model based on the first velocity model and interpretation of the seismic dataset; validating the basin model using calibration data; deriving a second velocity model from the validated basin model; and updating the first velocity model based, at least in part, on the second velocity model..
08/21/14
20140233322
Adaptive architecture in a channel detector for nand flash channels
An apparatus comprising a memory configured to store data and a controller. The controller may be configured to process a plurality of input/output requests to read/write to/from the memory.
08/21/14
20140233087
Reference calibration for an adaptive optics system
A method of determining a reference calibration setting for an adaptive optics system (1) comprising a detecting device (8) for detecting light from an object (5); and at least one controllable wavefront modifying device (9) arranged such that light from the object (5) passes via the wavefront modifying device (9) to the detecting device (8). The method comprises the steps of: arranging (100) a light-source between the object (5) and the wavefront modifying device (9) to provide a reference light beam to the detecting device (8) via the wavefront modifying device; for each of a plurality of orthogonal wavefront modes of the wavefront modifying device: controlling (101) the wavefront modifying device to vary a magnitude of the orthogonal wavefront mode over a predetermined number of magnitude settings; acquiring (102) a series of readings of the detecting device, each reading corresponding to one of the magnitude settings; determining (103) a quality metric value indicative of an information content of the reading for each reading in the series of readings, resulting in a series of quality metric values; and determining (106) a reference parameter set for the wavefront modifying device corresponding to an optimum quality metric value based on the series of quality metric values..
08/21/14
20140233049
Test chart used for calibration in image forming apparatus
Multiple measurement images are formed in a test chart. Reflected light from the test patterns is received by light receiving elements of a color sensor for an accumulation time that is determined for the respective test patterns.
08/21/14
20140232879
Color calibration chart acquisition
The present disclosure relates to color calibration chart acquisition. In an example, a video acquired by an imaging device may be processed.
08/21/14
20140232825
Calibration of a 3d camera
A method for calibrating a 3d camera includes determining an actuation of an element by a person and calibrating the 3d camera based on the determining of the actuation.. .
08/21/14
20140232652
Calibration of portable devices in a shared virtual space
Methods, systems, and computer programs are provided for generating an interactive space. One method includes operations for associating a first device to a reference point in 3d space, and for calculating by the first device a position of the first device in the 3d space based on inertial information captured by the first device and utilizing dead reckoning.
08/21/14
20140232596
Antenna array calibration
An apparatus for performing calibration of an antenna array having a plurality of antennas including at least a first antenna and a second antenna. The apparatus includes a global navigation satellite system receiver configured to measure a first phase of a first signal received by the first antenna from a satellite and a second phase of a second signal received by the second antenna from the satellite.
08/21/14
20140232578
Analog/digital converter and semiconductor integrated circuit device
A reference a/d conversion unit is connected in parallel to an input common to a time-interleaved a/d converter to be a calibration target, and the output of each unitary a/d conversion unit which makes up the time-interleaved a/d converter is calibrated in a digital region by using a low-speed high-resolution a/d conversion result output from the reference a/d conversion unit. Also, fclk/n (fclk represents an overall sampling rate of the time-interleaved a/d converter, and n is relatively prime to the number of unitary a/d conversion units connected in parallel m) is set as the operation clock frequency of the reference a/d conversion unit.
08/21/14
20140232576
Method and apparatus for calibrating digital background through capacitor division and swapping for reducing capacitor mismatch effect of analog-to-digital converter
A high-quality analog to digital converter (adc) is used to calibrate a difference attributable to a capacitor mismatch in a digital to analog converter (dac). The present invention is advantageous in that it can fabricate a low-power high-resolution adc by calibrating an error attributable to a capacitor mismatch through a digital background calibration apparatus and method using a successive approximation register (sar)..
08/21/14
20140232420
Methods and systems for defective phase identification and current sense calibration for multi-phase voltage regulator circuits
Methods and systems are disclosed that may be implemented to complete individual phase current sense calibration of a multi-phase voltage regulator (vr) and/or to detect any and all individual bad phases of such a vr by utilizing the reconfiguration capability of a digital vr controller-based vr in conjunction with an improved test process. The disclosed systems and methods may be employed in one example to identify that all individual phases of the multi-phase vr are operational to contribute to the output of the multi-phase vr using a rotating single phase operation testing mode.
08/21/14
20140232274
Calibrated energy transfer
Apparatuses, methods, kits, and systems relating to applying electromagnetic energy to an object located at least partially in an energy application zone are disclosed. Some apparatuses may include a processor configured to determine a preliminary amount of energy to be dissipated in the object and determine a corrected amount of energy based on the preliminary amount of energy and calibration information.
08/21/14
20140231631
Apparatus for pulse shaping
An array of photon sensitive devices is configured to provide outputs. Pulse shaping circuits operate to shape a respective output of the array in a normal mode of operation and shape a calibration signal in a calibration mode of operation..
08/21/14
20140231630
Method and apparatus for image sensor calibration
A photon sensitive device is provided with a voltage. A controller is configured to control a voltage source so as to cause at least one calibration voltage to be applied to the photon sensitive device in a calibration mode in order to determine the voltage to be provided by the voltage source in a normal mode of operation..
08/21/14
20140231141
Systems and methods for automatic weight on bit sensor calibration and regulating buckling of a drillstring
Disclosed are systems and methods for automatic weight on bit sensor calibration and regulating buckling of a drillstring. One method includes taking a first survey recording at a first depth within a borehole, the first survey recording providing inclination and azimuth of a drillstring at the first depth, measuring a weight on a drill bit at the first depth with a sensor sub arranged on a bottom hole assembly, the bottom hole assembly forming part of the drillstring and the drill bit being disposed at an end of the drillstring, calculating a predicted borehole curvature at a second depth within the borehole, the predicted curvature including a predicted inclination and a predicted azimuth of the drillstring at the second depth, calculating a weight correction value based on the predicted hole curvature, and calibrating the sensor sub with the weight correction value..
08/21/14
20140231014
Ballistics systems and methods
A scope may include an adjustment dial, which may be moved among a plurality of positions to configure the scope to compensate for projectile drops. The adjustment dial may be labeled with dial-calibration data, which may include one or more distance indicators and/or one or more windage hold-off indicators.


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