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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


Apparatus and methods thereof for error correction in split core current transformers

Geomagnetic sensor calibration apparatus and method thereof

Platform for portable sensing applications

Date/App# patent app List of recent Calibration-related patents
07/17/14
20140200851
 Motor assembly patent thumbnailMotor assembly
A motor assembly is presented. A motor assembly can include at least one motor; a memory to store calibrated parameters related to the at least one motor; and electronics coupled to the memory, the at least one motor, the electronics including interfaces to couple with a clamping device and a system to control the operation of the at least one motor.
07/17/14
20140200843
 Apparatus and methods thereof for error correction in split core current transformers patent thumbnailApparatus and methods thereof for error correction in split core current transformers
Apparatus and methods are provided for electrical parameter measurements at points of interest, such as circuit breakers, machines, and the like. The devices which comprise of components that may require corrections, such as the errors induced by, but not limited to, the use of a split core mounted around a current carrier, and hence calibration coefficients are provided based on test, measurements and/or calculations respective of the devices.
07/17/14
20140200841
 Geomagnetic sensor calibration apparatus and method thereof patent thumbnailGeomagnetic sensor calibration apparatus and method thereof
A geomagnetic sensor calibration apparatus includes a geomagnetic sensor which measures at least one value of earth's magnetic field, an initial point estimator which estimates first central points regarding the at least one value of the earth's magnetic field by using a first linear function, a central point estimator which estimates second central points by using a second linear function and the estimated first central points, and a controller which determines whether calibrating of the geomagnetic sensor is necessary based on the estimated first central points and controls the central point estimator to estimate second central points based on whether calibration is determined to be necessary.. .
07/17/14
20140200840
 Platform for portable sensing applications patent thumbnailPlatform for portable sensing applications
Sensing systems are presented in which one or more sensors are operatively associated with a portable device such as a smartphone or tablet computer. A software application on the portable device provides an interface through which a user can interact with the sensors, e.g.
07/17/14
20140200612
 Clamping instrument patent thumbnailClamping instrument
Embodiments of a clamping instrument are disclosed. In some embodiments, a clamping device with calibrated parameters and a calibration process for the clamping device is presented.
07/17/14
20140200114
 Method of calibration of a park brake of a continuously variable transmission patent thumbnailMethod of calibration of a park brake of a continuously variable transmission
A method of calibrating a hydraulically operated park brake of a continuously variable transmission of a vehicle. With the vehicle moving at a set, slow speed within a specified range, and the park brake off, a search technique is used, wherein the brake hydraulic pressure is reduced by application of a control signal of a selected test value to apply the brake.
07/17/14
20140199058
 Autofocus calibration for long lenses patent thumbnailAutofocus calibration for long lenses
A method for calibrating a focus point for a camera lens may include capturing a reflection of a focus point measuring device that is affixed to the camera. The method may include evaluating a captured image of the reflection to measure a calibration amount for a focus point, and adjusting a focus point of a lens of the camera by the calibration amount.
07/17/14
20140198820
 Systems and methods for an auto-ranging temperature sensor patent thumbnailSystems and methods for an auto-ranging temperature sensor
Systems and methods for an auto-ranging temperature sensor are provided. In at least one embodiment, a system for sensing and measuring temperature comprises at least one analog signal amplifier that generates an amplified analog signal output based on an analog signal from at least one of a biased thermistor circuit and a calibration circuit and a digital to analog converter that generates an analog offset signal as an input to the at least one analog signal amplifier, wherein the analog offset signal shifts the amplified analog signal within an analog to digital converter input operating range when the amplified analog signal is equal to or greater than a limit of the analog to digital converter input operating range, wherein the analog offset signal is determined based on the magnitude of the amplified analog signal..
07/17/14
20140198755
 Reuse of rf receive chain for hand-in assistance patent thumbnailReuse of rf receive chain for hand-in assistance
A radio frequency receive chain of an access point is reused for different functions. For example, the same rf receive chain may be used to receive on a downlink at certain points in time and on an uplink at other points in time.
07/17/14
20140198221
 Image capture device calibration patent thumbnailImage capture device calibration
A three-dimensional coordinate position of a calibration device is determined. Further, a code is emitted to an image capture device.
07/17/14
20140198040
Apparatus, system and method for self-calibration of indirect pointing devices
An apparatus, system, and method are disclosed for pointing device calibration. An observation module may track physical movement sensed by an indirect pointing device and record actual cursor behavior corresponding to the physical movement.
07/17/14
20140197972
Successive approximation register analog-to-digital converter and conversion time calibration method thereof
A successive approximation register analog-to-digital converter and a conversion time calibration method thereof are provided. The successive approximation register analog-to-digital converter includes a conversion circuit and a conversion time calibration apparatus.
07/17/14
20140196949
Autodriller system
An autodriller provides an automatic self calibration system to predict both axial and rotational friction coefficients from the surface measurements such as hookload and surface torque while a drill bit is off bottom. The friction coefficients are used to calculate the friction forces between drillstring and the wellbore while the bit is on bottom during drilling operation to estimate downhole weight on the bit and bit torque, and use the estimates to alter the drilling process..
07/10/14
20140196012
Methods, devices, systems, and non-transitory machine-readable medium for performing an automated calibration for testing of a computer software application
The present invention enables an automated testing of computer software applications for efficiently determining the quality and/or performance characteristics of the computer software applications and assists testing designers when determining software application scalability and performance under load. Embodiments of the present invention may be implemented to, for example, determine how many test servers are required to test computer software applications for correct function under the load of many concurrently active users, and periodically test and/or monitor computer software applications for quality control and/or other purposes.
07/10/14
20140195446
Techniques for qualification and maintenance of scientific information system devices
Described are techniques for determining a qualification status of a device in a system. An occurrence of a trigger event for the device is determined.
07/10/14
20140195188
Borehole acoustic noise measurement and processing
In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire acoustic noise data by one or more receivers, the acoustic noise provided by a passive source comprising a down hole tool body moving with in a borehole, and/or a positioning device or a measurement device attached to the tool body. Additional operations may include processing the acoustic noise data to determine receiver calibration parameters, and/or formation properties.
07/10/14
20140195187
Coating thickness measuring instrument and methods
A coating thickness measuring instrument has a probe for measuring the thickness of a coating applied to a substrate and producing an output relating to the measured thickness; a memory storing calibration data; and a processor arranged to process the output produced by the probe, together with calibration data stored by the memory, and produce a coating thickness measurement. The memory stores at least two sets of calibration data, each set associated with a different surface profile value and a user may select the set of calibration data to be used by the processor according to the surface profile of the substrate on which a measurement is to be made.
07/10/14
20140195186
Automatic calibration method for a motor vehicle a camshaft sensor
.. .
07/10/14
20140195158
Network for measuring greenhouse gases in the atmosphere
Methods and apparatuses, including computer program products, are described for measuring greenhouse gas. A calibration device receives a first sample of atmospheric gas from a first port exposed to the earth's atmosphere.
07/10/14
20140194774
System and method for hearing assessment over a network
A system for administering a hearing test to a remotely located user or subject using a user computing device connected to a communication network. The system provides for testing of ambient noise at the remote location and accuracy of sound reproduction by headphones engaged to the user computing device in a calibration of the loudspeakers of the headphones and the venue prior to communicating the test sounds.
07/10/14
20140194143
Method and a system for the localisation of a communication device
The invention relates to a method for localising a communication device (1), wherein by measuring field strengths of a radio network (2) at known locations, an assignment is made of the field strength measured at the communication device (1) to the known locations, wherein the method comprises a calibration phase, a measuring phase, a post-processing phase, as well as a localisation phase; and an apparatus adapted to carry out the method for localising a communication device.. .
07/10/14
20140194135
System and method for calibration of a distributed amplifier system
A system and method in a distributed amplifier system for correcting for rf losses between head end and coverage nodes by measuring rf losses in both directions; generating gains for amplifiers in both the head ends and coverage nodes; generating maximum output power limits; and adjusting the generated gains and output power limits based on downlink signal strength of cellular signals at a donor antenna.. .
07/10/14
20140192991
Method for self-calibration of a set of sensors, in particular microphones, and corresponding system
Providing a set of sources of acoustic events designed to generate acoustic waves; measuring times of flight of the acoustic events between each source of acoustic events and each microphone; and reconstructing the positions of the set of sensors and the positions of the sources of acoustic events through a maximum-likelihood estimation procedure executed on the basis of the measured times of flight. Times of emission of the acoustic events are acquired.
07/10/14
20140192940
Communication channel calibration for drift conditions
A method and system provides for execution of calibration cycles from time to time during normal operation of the communication channel. A calibration cycle includes de-coupling the normal data source from the transmitter and supplying a calibration pattern in its place.
07/10/14
20140192834
Apparatus for calibration of temperature sensors
A calibration body (140) for calibration of a temperature sensor (170). The calibration body comprises a volume (142) capable of containing a calibration fluid with a predetermined temperature and an opening (160) for receiving the temperature sensor.
07/10/14
20140192373
Method for controlling a colour calibration target
Comparing the measured values of said parameter for evaluating whether the control zones exhibit print anomalies.. .
07/10/14
20140192371
Printing condition setting apparatus, printing condition setting method, and non-transitory storage medium
Color conversion conditions corresponding to medium types belonging to the same group as a selected representative type are collectively updated based on calibration results. It is judged whether or not there is a fluctuating factor concerning color reproduction characteristics between a print medium that is used at present in the calibration and a print medium that was used in the past.
07/10/14
20140192369
Automatic printing adjustment method for page-width array printing device
An automatic printing adjustment method for a page-width array printing device is provided. The page-width array printing device includes a printing module, a scanning module and a print region.
07/10/14
20140192362
Optical measurement apparatus and calibration method
An optical measurement apparatus includes: a recording unit that records therein a value of a ratio of a first detection intensity to a second detection intensity, the first detection intensity being an intensity of the returned light detected when a first medium having a refractive index that is the same as that of a specimen is irradiated with illumination light by a measurement probe, and the second detection intensity being an intensity of the returned light detected when a second medium is irradiated with the illumination light by the measurement probe; and a calculation unit that calculates, from a product of a third detection intensity and the value of the ratio, a background intensity of background light to be used in correcting the returned light from the specimen, the third detection intensity being an intensity of the returned light detected when the second medium is irradiated with the illumination light.. .
07/10/14
20140192086
Camera-based device and method of augmenting data displayed on a display device using the camera-based device
A method of augmenting data that is displayed on a display device by using a camera-based device, and the camera-based device are provided. The method includes configuring a network setting of the camera-based device to enable communication between the camera-based device and the display device; performing calibration to capture an initial boundary in the display device; capturing data that is displayed on the display device; associating the captured data with additional data; and displaying the additional data on the display device.
07/10/14
20140191946
Head mounted display providing eye gaze calibration and control method thereof
A control method of a head mounted display (hmd) is disclosed. The control method of the hmd includes detecting a first route of a first moving object and a second route of a second moving object in front of the hmd, detecting a third route along which user's eye gaze moves, setting the first moving object as a reference object if the detected first route is substantially identical with the detected third route, setting the second moving object as the reference object if the detected second route is substantially identical with the detected third route, and performing an eye gaze calibration based on a route of the set reference object and the detected third route..
07/10/14
20140191927
Head mount display device providing eye gaze calibration and control method thereof
An eye gaze calibration method includes sensing an image of surroundings located in front of the hmd device using a camera unit, detecting a reference object from the sensed image of the surroundings using an image processing unit, detecting an eye gaze direction in which a user gazes at the detected reference object using an eye gaze detection unit, and performing eye gaze calibration based on the detected reference object and the detected eye gaze direction using a controller, wherein detecting the reference object includes detecting at least one object contained in the sensed image as a first object, detecting a hand of the user contained in the sensed image as a second object, detecting an event of the second object with respect to the first object, and deciding the first object, on which the event has been detected, as the reference object.. .
07/10/14
20140191811
Integrated circuit with calibrated pulling effect correction
A calibration circuit includes a combinational gate configured to receive a voltage-controlled oscillator (vco) output signal and a selected reference signal to detect a phase difference between the vco output signal and the selected reference signal and generate an output binary signal, in which the vco output signal has one or more unwanted frequency components. The calibration circuit also includes a loop filter configured to filter the output binary signal and generate a filtered calibration signal.
07/10/14
20140191782
On-chip r and c calibration using on-board supply bypass capacitance
A technique for calibration of on-chip resistance (r) and capacitance (c) values using an on-board bypass capacitor may include configuring an on-chip switch to selectively couple an on-chip calibration circuit to an on-chip port. The on-chip calibration circuit may include an rc oscillator having an rc time constant (rctc).
07/10/14
20140191768
Method and system for measuring the resistance of a resistive structure
Method and system for measuring the resistance of a resistive structure having at least three nodes. A first calibration signal is determined by measuring a voltage at an output of the resistance structure when no calibration current is injected into a third node between the first and second nodes of the structure.
07/10/14
20140191125
Sample block holder
A sample holder assembly includes a sample tray, a base plate, a stage mount, and a calibration standard mounted onto the stage mount. Three mating structures on the bottom of the base plate mate with corresponding structures on a stage mount that is attached to the sample stage of the sem.
07/10/14
20140190747
System and method for automatic weight-on-bit sensor calibration
A system and method for automatic weight-on-bit sensor calibration is described. Embodiments of the invention automatically compensate the measurements of a weight-on-bit sensor based on one or more of mass, hole inclination, buoyancy, drag, and mud flow, resulting in a more accurate axial force measurement below the weight-on-bit sensor at various hole inclinations.
07/10/14
20140190263
Acoustic fluid valve calibration
Methods and apparatus for acoustic fluid valve calibration are disclosed herein. An example method involves rotating a closure member of a valve to a involves rotating a closure member of a valve to a plurality of positions along a valve stroke, obtaining acoustic emission signals generated by a fluid passing through the valve using a sensor when the closure member is in the positions, and identifying, using a processor, a zero position of the closure member based on the acoustic emission signals..
07/10/14
20140190024
Digital marking gauge
The current marking gauges, mortise gauges and circle marking gauges on the market require use of a ruler to measure distances prior to marking, which is inconvenient and time consuming. Moreover, the accuracy of the marked dimension is inexact due to the low accuracy of using a ruler.
07/03/14
20140189520
Digital checklist
A digital checklist system includes an electronic calibration and measurement device and a computer-readable medium having computer-executable instructions stored thereon that, if executed by one or more processors of a computing device, cause the computing device to perform actions for managing a digital checklist the actions include creating a digital checklist having at least one unique prompt, selecting the digital checklist for uploading onto the electronic calibration and measurement device, and downloading data input into the electronic calibration and measurement device in response to the at least one unique prompt. The system further includes a network location for facilitating communication between the electronic calibration and measurement device and the computing device..
07/03/14
20140188422
Calbration of a sensor assembly for use in medical position/orientation tracking
A position and orientation system and method is provided. A magnetoresistance sensor is provided having a sensor array configured to measure magnetic fields and a metallic coil positioned within the magnetoresistance sensor.
07/03/14
20140188421
Apparatus and method for calibration of coriolis meter for dry gas density measurement
A computer system is described. The computer system is provided with a processor and a computer readable medium.
07/03/14
20140188274
Robot system display device
A robot system display device is provided for graphically displaying components of a robot system which carries out a desirable process by measuring a position of a target object with a vision sensor. The robot system display device acquires an arrangement of the vision sensor relative to other components of the robot system based on calibration data for the vision sensor and pre-stored shape information of the vision sensor.
07/03/14
20140188009
Customizable activity training and rehabilitation system
A system may include a calibration module that measures a range of limb and trunk movements made by a human subject during a calibration phase of the system. A customization module may customize pre-determined performance criteria based on the measured range of limb and trunk movements.
07/03/14
20140187985
Pressure sensor calibration systems and methods
Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices include at least one pressure sensing component within a distal portion of the device.
07/03/14
20140187982
Intravascular devices having information stored thereon and/or wireless communication functionality, including associated devices, systems, and methods
Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices are guide-wires that include one or more sensing components and a sensor control module that stores information about the guide-wire.
07/03/14
20140187981
Intravascular devices having information stored thereon and/or wireless communication functionality, including associated devices, systems, and methods
Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices are guide-wires that include one or more sensing components and a sensor control module that stores information about the guide-wire.
07/03/14
20140187978
Intravascular devices having information stored thereon and/or wireless communication functionality, including associated devices, systems, and methods
Intravascular devices, systems, and methods are disclosed. In some embodiments, the intravascular devices are guide-wires that include one or more sensing components and a sensor control module that stores information about the guide-wire.
07/03/14
20140187917
Catheter with serially connected sensing structures and methods of calibration and detection
A catheter is responsive to external and internal magnetic field generators for generating signals representing position and pressure data, with a reduced number of sensing coil leads for minimizing lead breakage and failure. The catheter includes a flexible joint with pressure sensing and position coils, at least pair of a pressure sensing coil and a position coil are serially connected.
07/03/14
20140187276
Systems and methods for reducing interference in data communication networks
A computer-implemented method for calculating interference reducing parameters for cancelling wireless signal interference within a data communication network, comprising: per each of a plurality of antennas of a multi-sector hub communicating with a data communication network and with a corresponding transceiver of a plurality of distant transceivers: calculating a plurality of calibration factors based on values extracted from sequential transmission and reception of predetermined signals between each of the plurality of antennas of the multi-sector hub; calculating at least one receive interference cancellation parameter, to isolate desired signals transmitted by the corresponding distant transceiver from the undesired interference signals transmitted by other non-corresponding distant transceivers; calculating at least one transmit interference parameter for each non-corresponding antenna of the hub, based on the calculated receive interference cancellation parameters and the calibration factors; and generating the interference parameters for applying during operation of the multi-sector hub to generate interference cancellation signals.. .
07/03/14
20140186939
Portable water quality instrument
A hand-held microfluidic testing device is provided that includes a housing having a cartridge receiving port, a cartridge for input to the cartridge receiving port having a sample input and a channel, where the channel includes a mixture of raman-scattering nanoparticles and a calibration solution, where the calibration solution includes chemical compounds capable of interacting with a sample under test input to the cartridge and the raman-scattering nanoparticles, and an optical detection system in the housing, where the optical detection system is capable of providing an illuminated electric field, where the illuminating electric field is capable of being used for raman spectroscopy with the raman-scattering nanoparticles and the calibration solution to analyze the sample under test input to the cartridge.. .
07/03/14
20140186029
Methods and devices for active optical cable calibration
Methods and devices for laser driver calibration are disclosed. The methods and devices disclose determining first and second bit error rates for use in calibrating the laser driver.
07/03/14
20140185942
Imaging system for determining multi-view alignment
A computer-implemented method which may be used with imaging systems is provided. The method may include receiving a first image from a first device configured to generate the first image based upon, at least in part, a first portion of an item.
07/03/14
20140185725
Drift tracking feedback for communication channels
A communication channel includes a first component having a transmitter coupled to a normal signal source, and a second component having a receiver coupled to a normal signal destination. A communication link couples the first and second components.
07/03/14
20140185646
Systems, devices, and/or methods for managing a thermocouple module
Certain exemplary embodiments can provide a system, which can comprise a thermocouple input module. The thermocouple input module can be adapted to determine one or more calibration factors.
07/03/14
20140185520
Processing delay estimate based on crowdsourcing data
Techniques are provided for providing a processing delay estimate of an access point, or turnaround calibration function (tcf), associated with round trip time (rtt) measurements. Mobile devices, access points, and/or other systems can utilize these techniques to derive processing delay from the rtt measurements.
07/03/14
20140185384
Nonvolatile memory devices including simultaneous impedance calibration
An operating method of a nonvolatile memory device is provided which includes receiving a command sequence; detecting whether the input command sequence accompanies an impedance calibration operation; and if the input command sequence accompanies the impedance calibration operation, simultaneously performing an operation corresponding to the input command sequence and the impedance calibration operation.. .
07/03/14
20140185071
Apparatus that performs calibration for maintaining image quality
To add an arbitrary recording medium as a recording medium that can be used for calibration to maintain the quality of an image to be formed, an image forming unit forms a pattern image on each of a specific recording medium that can be used for the calibration and the arbitrary recording medium. A creating unit creates second conversion setting information applied to the arbitrary recording medium to convert luminance information into density information, using first luminance information obtained from the pattern image formed on the specific recording medium, second luminance information obtained from the pattern image formed on the arbitrary recording medium, and first conversion setting information applied to the specific recording medium for converting luminance information into density information.
07/03/14
20140185036
Calibration apparatus and calibration method
A calibration apparatus includes an insertion portion into which a measurement probe is inserted and a reference reflection plate that is arranged at a position away from a distal end of the measurement probe by a predetermined distance in a state in which the measurement probe has been inserted in the insertion portion and that has uniform reflectivity of light in a range of a wavelength to be measured in an irradiation plane of an illumination light, wherein a material forming the reference reflection plate has a scattering mean free path that is greater than a spatial coherence length at the predetermined distance.. .
07/03/14
20140184815
Calibration plate for calibrating a plurality of image capturing devices and method for calibrating a plurality of image capturing devices
A calibration plate and a method for calibrating image capturing devices are provided. The calibration plate includes: a plate having a front face and a rear face; a plurality of calibration patterns formed at the front face of the plate, arranged in a regular manner, and used to calibrate image distortions, lens aberrations, and image center positions for the image capturing devices; and a plurality of graphically encoded patterns formed at the front face of the plate, the graphically encoded patterns being different from each other, and the graphically encoded patterns having information providing the positions of the calibration patterns..
07/03/14
20140184814
Calibration reference pattern for vehicle camera and setting method thereof, and image conversion method and device
An image conversion method is provided. An image of a calibration reference pattern is captured.
07/03/14
20140184813
Lens shading calibration for cameras
Embodiments of the present invention are directed to methods and systems for performing automatic lens shading correction using module-specific calibrations. According to one aspect of the invention, a method is provided that is performed over three main stages.
07/03/14
20140184765
Video imaging system with multiple camera white balance capability
A system for capturing image data including a control module having a control switch and a processor, the processor being adapted for white balance control and the control switch being adapted to initiate white balance control, at least one input module connected to the control module, the input module providing white balance calibration, and at least one camera coupled to the input module. One or more of the at least one input module are configured as active input modules, each active input module having an active camera generating an image signal.
07/03/14
20140184441
System and method of collaborative positioning calibration, and method of deploying reference station
An embodiment disclosed a system for collaborative positioning calibration, comprising at least one reference station and at least one client. The reference station uses a known position and a satellite signal transmitted by at least one satellite to compute a pseudo-range difference of the reference station position and the satellite position, and then broadcasts an area calibration data including at least one pseudo-range difference to at least one client.
07/03/14
20140184436
Apparatus and methods for converting analog signal to n-bit digital data
An apparatus includes a sample holding circuit, a comparator, a digital-to-analog converter, a clock generator, a successive approximation logic circuit, and a background calibration circuit. The apparatus converts an analog signal into digital data based on an asynchronous clock signal.
07/03/14
20140184267
Compensated impedance calibration circuit
Aspects of the invention provide for compensating impedance calibration circuits. In one embodiment, a compensated impedance calibration circuit, includes: a variable resistor network including a tunable resistor and a fixed resistor; and an external resistance network including a target external precision resistor and a parasitic distribution resistance; wherein a resistance of the variable resistor network is proportional to a resistance of the external resistance network, such that a ratio of an output voltage of the variable resistor network to a power supply voltage is constant..
07/03/14
20140184199
Method and system for calibrating a shunt resistor
A shunt resistor includes: two measuring terminals for applying a measuring current flowing through the shunt resistor along a main flow direction; slot structures dividing the shunt resistor along the main flow direction to include two side flow areas of respective first widths and a main flow area of a second width; and two calibration terminals connected to the side flow areas. A circuit connected to the measuring terminals is designed to detect, and generate a signal based on, a measuring current flowing through the shunt resistor.
07/03/14
20140184197
Characterization and calibration of large area solid state photomultiplier breakdown voltage and/or capacitance
Exemplary embodiments are directed to characterizing a solid state photomultiplier (sspm). The sspm can be exposed to a light pulse that triggers a plurality of microcells of the sspm and an output signal of the sspm generated in response to the light pulse can be processed.
07/03/14
20140184150
Method and system for wireless power transfer calibration
In a wpt system, varying parameters, such as coupling coefficient, may cause the system to fall out of resonance and/or tuning. By monitoring one or more signals within a coil module of the wpt device, this detuning can be detected.


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