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公开(公告)号：US12080460B2
公开(公告)日：2024-09-03
申请号：US17890163
申请日：2022-08-17
发明人： Paul Lambkin , Patrick J. Murphy , Bernard Patrick Stenson , Laurence B. O'Sullivan , Stephen O'Brien , Shane Geary , Baoxing Chen , Sombel Diaham
CPC分类号： H01F19/08 , H01F2019/085 , H01G2/00 , H04B1/04 , H04B1/16
摘要： A micro-isolator is described. The micro-isolator may include a first isolator element, a second isolator element, and a first dielectric material separating the first isolator element from the second isolator element. A second dielectric material may completely or partly encapsulate the second isolator element, or may be present at outer corners of the second isolator element. The second dielectric material may have a larger bandgap than the first dielectric material, and its configuration may reduce electrostatic charge injection into the first dielectric material. The micro-isolator may be formed using microfabrication techniques.
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公开(公告)号：US11193803B2
公开(公告)日：2021-12-07
申请号：US16262579
申请日：2019-01-30
发明人： Claire Croke , Aine McCarthy , Adrian Sherry , Giovanni C. Dotta , Dan O'Donovan , Sean Wilson , Mary McCarthy , Colin G. Lyden , Fiona Mary Treacy , Michael Byrne
摘要： Various examples are directed to systems and methods for managing a sensor. A measurement system may receive, from a host device, a first register map describing a first configuration of a measurement system. The first configuration may be associated with a first sensor. The measurement system may compare the first register map to an error rule set indicating inconsistent register map arrangements. After comparing the first register map to the error rule set, the measurement system may configure a switch matrix of the measurement system to sample the first sensor according to the first configuration of the measurement system. The measurement system may receive a plurality of samples from a first sensor and generate first digital measurement data based at least in part on the plurality of samples.
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公开(公告)号：US20210194497A1
公开(公告)日：2021-06-24
申请号：US16074356
申请日：2017-02-01
发明人： David LAMB , Mayur ANVEKAR , Robert ADAMS
摘要： A variable output data rate converter circuit preferably meets performance requirements while keeping the circuit complexity low. In some embodiments, the converter circuit may include an oversampling sigma delta modulator circuit to quantize an analog input signal at an oversampled rate, and output an sigma delta modulated signal, a transposed polynomial decimator circuit to decimate the sigma delta modulated signal, and output a first decimated signal, and an integer decimator circuit to decimate the first decimated signal by an integer factor and output a second decimated signal having a desired output data rate. The transposed polynomial decimator circuit has a transposed polynomial filter circuit and a digital phase locked loop circuit, which tracks a ratio between a sampling rate of the first decimated signal and the oversampled rate, and outputs an intersample position parameter to the transposed polynomial filter circuit.
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公开(公告)号：US10955493B2
公开(公告)日：2021-03-23
申请号：US16294192
申请日：2019-03-06
摘要： A calibration apparatus for calibrating a magnetic sensor configured to generate an output signal indicative of magnetic field strength when a bias signal is applied to it is disclosed. The apparatus includes a test magnetic field generator (MFG) to generate magnetic fields of known magnitude, and further includes a processor to control the MFG to generate a known magnetic field, control the sensor to generate a test output signal when the MFG generates the known magnetic field and a known bias signal is applied to the sensor, and determine how to change the bias signal based on a deviation of the measured test output signal from an expected output signal. Using a test MFG that produces known magnetic fields when known bias signals are applied to sensors allows evaluating and compensating for changes in sensitivity of the sensors by accordingly changing bias signals applied to the sensors.
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公开(公告)号：US20210065955A1
公开(公告)日：2021-03-04
申请号：US16553954
申请日：2019-08-28
发明人： Paul Lambkin , Patrick J. Murphy , Bernard Patrick Stenson , Laurence B. O'Sullivan , Stephen O'Brien , Shane Geary , Baoxing Chen , Sombel Diaham
IPC分类号： H01F19/08
摘要： A micro-isolator is described. The micro-isolator may include a first isolator element, a second isolator element, and a first dielectric material separating the first isolator element from the second isolator element. A second dielectric material may completely or partly encapsulate the second isolator element, or may be present at outer corners of the second isolator element. The second dielectric material may have a larger bandgap than the first dielectric material, and its configuration may reduce electrostatic charge injection into the first dielectric material. The micro-isolator may be formed using microfabrication techniques.
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公开(公告)号：US10939379B2
公开(公告)日：2021-03-02
申请号：US15809520
申请日：2017-11-10
发明人： Philip P. E. Quinlan , Paul Lambkin
摘要： A wireless sensor node is described. The wireless sensor node may include a wake-up circuitry configured to awaken the sensor when a request is received. The sensor may be placed in a sleep mode, thus saving battery usage until a wake-up signal requesting use of the sensor is received. Powering of the wake-up circuitry may be supplied through energy captured using an energy harvester. In one example, the energy for powering the wake-up circuitry is extracted from the same signal used for awakening the sensor. The wireless sensor mode may operate in a passive mode, in which the energy for powering the wake-up circuitry is harvested, or in a power supply-assisted mode, in which some of the power is provided by a power supply. High quality factors filters may be used to increase the signal-to-noise ratio of the wake-up signals, thus improving the node's ability to recognize activation requests.
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公开(公告)号：US10855073B2
公开(公告)日：2020-12-01
申请号：US16035538
申请日：2018-07-13
摘要： A method of and apparatus for protecting a MEMS switch is provided. The method and apparatus improve the integrity of MEMS switches by reducing their vulnerability to current flow through them during switching of the MEMS switch between on and off or vice versa. The protection circuit provides for a parallel path, known as a shunt, around the MEMS component. However, components within the shunt circuit can themselves be removed from the shunt when they are not required. This improves the electrical performance of the shunt when the switch is supposed to be in an off state.
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公开(公告)号：US10852799B2
公开(公告)日：2020-12-01
申请号：US16020812
申请日：2018-06-27
IPC分类号： G06F1/26 , G06F13/362 , G06F13/40
摘要： Disclosed herein are systems and techniques for adaptive use of multiple power supplies in a communication system. For example, in some embodiments, a slave device may include: an upstream transceiver to couple to an upstream link of a bus of a communication system; and circuitry to couple to the upstream link of the bus and to a local power supply, wherein the circuitry is to switch from providing the local power supply to power the slave device to providing bus power supplied by the upstream link of the bus to power the slave device.
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公开(公告)号：US10852437B2
公开(公告)日：2020-12-01
申请号：US16442173
申请日：2019-06-14
发明人： Yalcin Alper Eken , Alp Oguz
IPC分类号： H03F3/08 , G01S17/93 , H03F1/08 , H03F1/32 , G01S7/483 , H03F1/26 , H03F3/45 , H04B10/69 , G01S7/4861 , G01S7/486
摘要： A system and method for operating a high dynamic range analog front-end receiver for long range LIDAR with a transimpedance amplifier (TIA) include a clipping circuit to prevent saturation of the TIA. The output of the clipping circuit is connected via a diode or transistor to the input of the TIA and regulated such that the input voltage of the TIA remains close to or is only slightly above the saturation threshold voltage of the TIA. The regulation of the input voltage of the TIA can be improved by connecting a limiting resistor in series with the diode or transistor. A second clipping circuit capable of dissipating higher input currents and thus higher voltages may be connected in parallel with the first clipping circuit. A resistive element may be placed between the first and second clipping circuits to further limit the input current to the TIA.
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公开(公告)号：US10790740B2
公开(公告)日：2020-09-29
申请号：US15968981
申请日：2018-05-02
发明人： Amit Kumar Singh , Sriram Ganesan , Miguel A. Ruiz , Jose Tejada
摘要： Techniques for improving efficiency of a switched-capacitor voltage regulator are provided. In an example, a switched-capacitor voltage regulator can include a switched-capacitor network having multiple gain configurations, a clock configured to switch capacitors of the switched-capacitor network between a charge state and a discharge state to provide a scaled output voltage, and a controller configured to select a capacitor configuration associated with a gain of the multiple gain configurations to provide the scaled output voltage within a desired output voltage range while continuously switching the capacitor configuration, and to interrupt switching of the capacitor configuration to permit an output voltage of the switched-capacitor voltage regulator to fall below the scaled output voltage but to remain above a lower limit of the desired output voltage range to save power by reducing losses due to the switching.
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