WO2008042015A3 - Capacitive interface circuit for low power sensor system - Google Patents

Capacitive interface circuit for low power sensor system Download PDF

Info

Publication number
WO2008042015A3
WO2008042015A3 PCT/US2007/009851 US2007009851W WO2008042015A3 WO 2008042015 A3 WO2008042015 A3 WO 2008042015A3 US 2007009851 W US2007009851 W US 2007009851W WO 2008042015 A3 WO2008042015 A3 WO 2008042015A3
Authority
WO
WIPO (PCT)
Prior art keywords
interface circuit
low power
capacitive interface
output
noise
Prior art date
Application number
PCT/US2007/009851
Other languages
French (fr)
Other versions
WO2008042015A2 (en
Inventor
Timothy J Denison
Original Assignee
Medtronic Inc
Timothy J Denison
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medtronic Inc, Timothy J Denison filed Critical Medtronic Inc
Priority to EP07755923A priority Critical patent/EP2074381B1/en
Priority to AT07755923T priority patent/ATE467821T1/en
Priority to JP2009530331A priority patent/JP5048070B2/en
Priority to CA2664862A priority patent/CA2664862C/en
Priority to DE602007006528T priority patent/DE602007006528D1/en
Priority to AU2007302788A priority patent/AU2007302788B2/en
Priority to CN200780036509XA priority patent/CN101568805B/en
Publication of WO2008042015A2 publication Critical patent/WO2008042015A2/en
Publication of WO2008042015A3 publication Critical patent/WO2008042015A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance

Abstract

This disclosure describes a capacitive interface circuit for a low power system. The capacitive interface circuit is configured to achieve very low noise sensing of capacitance-based transducers, such as a micro-electro-mechanical system (MEMS)-based sensor, with high resolution and low power. The capacitive interface circuit uses a differential amplifier and correlated triple sampling (CTS) to substantially eliminate, or at least reduce, kT/C noise, as well as amplifier offset and flicker (1/f) noise, from the output of the amplifier. The capacitive interface circuit may further include an output stage that reduces glitching, i.e., clock transients, in the output signal by allowing transients in the amplifier output to settle. In this manner, the circuit can be used in a low power system to produce a stable, low-noise output.
PCT/US2007/009851 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor system WO2008042015A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07755923A EP2074381B1 (en) 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor system
AT07755923T ATE467821T1 (en) 2006-09-28 2007-04-24 CAPACITIVE INTERFACE CIRCUIT FOR A LOW POWER SENSOR SYSTEM
JP2009530331A JP5048070B2 (en) 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor systems
CA2664862A CA2664862C (en) 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor system
DE602007006528T DE602007006528D1 (en) 2006-09-28 2007-04-24 CAPACITIVE INTERFACE CIRCUIT FOR A LOW-POWER SENSOR SYSTEM
AU2007302788A AU2007302788B2 (en) 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor system
CN200780036509XA CN101568805B (en) 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84774806P 2006-09-28 2006-09-28
US60/847,748 2006-09-28

Publications (2)

Publication Number Publication Date
WO2008042015A2 WO2008042015A2 (en) 2008-04-10
WO2008042015A3 true WO2008042015A3 (en) 2008-11-27

Family

ID=39268931

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/009851 WO2008042015A2 (en) 2006-09-28 2007-04-24 Capacitive interface circuit for low power sensor system

Country Status (9)

Country Link
US (2) US8000789B2 (en)
EP (2) EP2074381B1 (en)
JP (1) JP5048070B2 (en)
CN (1) CN101568805B (en)
AT (1) ATE467821T1 (en)
AU (1) AU2007302788B2 (en)
CA (1) CA2664862C (en)
DE (1) DE602007006528D1 (en)
WO (1) WO2008042015A2 (en)

Families Citing this family (147)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8396565B2 (en) 2003-09-15 2013-03-12 Medtronic, Inc. Automatic therapy adjustments
US7557433B2 (en) 2004-10-25 2009-07-07 Mccain Joseph H Microelectronic device with integrated energy source
US7957809B2 (en) 2005-12-02 2011-06-07 Medtronic, Inc. Closed-loop therapy adjustment
US8253425B2 (en) * 2007-05-08 2012-08-28 Synaptics Incorporated Production testing of a capacitive touch sensing device
GB0709893D0 (en) * 2007-05-23 2007-07-04 Onzo Ltd Apparatus for monitoring rescue consumption
US7786738B2 (en) * 2007-09-19 2010-08-31 Robert Bosch Gmbh Cancelling low frequency errors in MEMS systems
EP2214555B1 (en) * 2007-11-28 2020-01-15 The Regents of The University of California Non-contact biopotential sensing method
GB0724339D0 (en) * 2007-12-14 2008-01-23 Rolls Royce Plc A sensor arrangement
US8571643B2 (en) 2010-09-16 2013-10-29 Flint Hills Scientific, Llc Detecting or validating a detection of a state change from a template of heart rate derivative shape or heart beat wave complex
US8382667B2 (en) 2010-10-01 2013-02-26 Flint Hills Scientific, Llc Detecting, quantifying, and/or classifying seizures using multimodal data
US8337404B2 (en) 2010-10-01 2012-12-25 Flint Hills Scientific, Llc Detecting, quantifying, and/or classifying seizures using multimodal data
US8401666B2 (en) 2008-07-11 2013-03-19 Medtronic, Inc. Modification profiles for posture-responsive therapy
US8504150B2 (en) 2008-07-11 2013-08-06 Medtronic, Inc. Associating therapy adjustments with posture states using a stability timer
US8323218B2 (en) 2008-07-11 2012-12-04 Medtronic, Inc. Generation of proportional posture information over multiple time intervals
US9776008B2 (en) 2008-07-11 2017-10-03 Medtronic, Inc. Posture state responsive therapy delivery using dwell times
US8708934B2 (en) 2008-07-11 2014-04-29 Medtronic, Inc. Reorientation of patient posture states for posture-responsive therapy
US8644945B2 (en) 2008-07-11 2014-02-04 Medtronic, Inc. Patient interaction with posture-responsive therapy
US9050471B2 (en) 2008-07-11 2015-06-09 Medtronic, Inc. Posture state display on medical device user interface
US9956412B2 (en) 2008-07-11 2018-05-01 Medtronic, Inc. Linking posture states for posture responsive therapy
US8249718B2 (en) 2008-07-11 2012-08-21 Medtronic, Inc. Programming posture state-responsive therapy with nominal therapy parameters
US20100019780A1 (en) * 2008-07-24 2010-01-28 Mihai Bulea Multi-axis capacitive sensor
US8280517B2 (en) 2008-09-19 2012-10-02 Medtronic, Inc. Automatic validation techniques for validating operation of medical devices
WO2010047621A2 (en) 2008-10-22 2010-04-29 Rosemount Inc. Sensor/transmitter plug-and-play for process instrumentation
GB2466776A (en) * 2008-12-30 2010-07-07 Wolfson Microelectronics Plc Bootstrapping to reduce the effect of bond pad parasitic capacitance in a MEMS microphone circuit
US8125231B2 (en) * 2009-01-28 2012-02-28 Freescale Semiconductor, Inc. Capacitance-to-voltage interface circuit, and related operating methods
JP5441027B2 (en) * 2009-02-10 2014-03-12 旭化成エレクトロニクス株式会社 Inspection method and inspection apparatus for capacitive acceleration sensor
US8179121B2 (en) * 2009-03-30 2012-05-15 Pcb Piezotronics, Inc. Bridge sensor with collocated electronics and two-wire interface
US9327117B2 (en) * 2009-04-24 2016-05-03 Medtronic, Inc. Bladder sensing using impedance and posture
US9327070B2 (en) 2009-04-30 2016-05-03 Medtronic, Inc. Medical device therapy based on posture and timing
US8175720B2 (en) 2009-04-30 2012-05-08 Medtronic, Inc. Posture-responsive therapy control based on patient input
US8231555B2 (en) 2009-04-30 2012-07-31 Medtronic, Inc. Therapy system including multiple posture sensors
DE102009036003A1 (en) * 2009-07-30 2011-02-03 Siemens Aktiengesellschaft Integrator and circuit breaker with integrator
ITTO20090616A1 (en) * 2009-08-05 2011-02-06 St Microelectronics Srl PROCESS OF MANUFACTURING OF MEMS DEVICES EQUIPPED WITH CUTTED CAVITIES AND MEMS DEVICE SO OBTAINED
US8629795B2 (en) * 2009-09-09 2014-01-14 Taiwan Semiconductor Manufacturing Company, Ltd. Micro-electro-mechanical systems (MEMS), systems, and operating methods thereof
WO2011046845A2 (en) * 2009-10-15 2011-04-21 Rambus Inc. Signal distribution networks and related methods
US8330502B2 (en) * 2009-11-25 2012-12-11 Freescale Semiconductor, Inc. Systems and methods for detecting interference in an integrated circuit
US9357949B2 (en) 2010-01-08 2016-06-07 Medtronic, Inc. User interface that displays medical therapy and posture data
US9956418B2 (en) 2010-01-08 2018-05-01 Medtronic, Inc. Graphical manipulation of posture zones for posture-responsive therapy
US9149210B2 (en) 2010-01-08 2015-10-06 Medtronic, Inc. Automated calibration of posture state classification for a medical device
US8579834B2 (en) 2010-01-08 2013-11-12 Medtronic, Inc. Display of detected patient posture state
US8649871B2 (en) 2010-04-29 2014-02-11 Cyberonics, Inc. Validity test adaptive constraint modification for cardiac data used for detection of state changes
US8562536B2 (en) 2010-04-29 2013-10-22 Flint Hills Scientific, Llc Algorithm for detecting a seizure from cardiac data
US8831732B2 (en) 2010-04-29 2014-09-09 Cyberonics, Inc. Method, apparatus and system for validating and quantifying cardiac beat data quality
US9566441B2 (en) 2010-04-30 2017-02-14 Medtronic, Inc. Detecting posture sensor signal shift or drift in medical devices
WO2011153216A2 (en) * 2010-06-01 2011-12-08 The Regents Of The University Of California Integrated electric field sensor
EP2582429B1 (en) 2010-06-18 2016-01-13 Cardiac Pacemakers, Inc. Neurostimulation system with control using evoked responses
US8641646B2 (en) 2010-07-30 2014-02-04 Cyberonics, Inc. Seizure detection using coordinate data
DE102010035276B4 (en) * 2010-08-24 2012-08-02 Austriamicrosystems Ag Method for Offset Compensation of a Switched Capacitor Amplifier and Switched Capacitor Amplifier Arrangement
CN103238075B (en) 2010-09-18 2015-11-25 快捷半导体公司 There is the micromechanics triaxial accelerometer of single mass
US9278845B2 (en) 2010-09-18 2016-03-08 Fairchild Semiconductor Corporation MEMS multi-axis gyroscope Z-axis electrode structure
KR20130052652A (en) 2010-09-18 2013-05-22 페어차일드 세미컨덕터 코포레이션 Sealed packaging for microelectromechanical systems
EP2616771B8 (en) 2010-09-18 2018-12-19 Fairchild Semiconductor Corporation Micromachined monolithic 6-axis inertial sensor
US9352961B2 (en) 2010-09-18 2016-05-31 Fairchild Semiconductor Corporation Flexure bearing to reduce quadrature for resonating micromachined devices
KR101332701B1 (en) 2010-09-20 2013-11-25 페어차일드 세미컨덕터 코포레이션 Microelectromechanical pressure sensor including reference capacitor
US8684921B2 (en) 2010-10-01 2014-04-01 Flint Hills Scientific Llc Detecting, assessing and managing epilepsy using a multi-variate, metric-based classification analysis
TWI457000B (en) * 2010-10-05 2014-10-11 Aten Int Co Ltd Signal extender system and signal extender and transmitting module and receiving module thereof
US8860409B2 (en) * 2011-01-11 2014-10-14 Invensense, Inc. Micromachined resonant magnetic field sensors
US8947081B2 (en) 2011-01-11 2015-02-03 Invensense, Inc. Micromachined resonant magnetic field sensors
US8878797B2 (en) 2011-02-25 2014-11-04 Maxim Integrated Products, Inc. Capacitive touch sense architecture having a correlator for demodulating a measured capacitance from an excitation signal
US9086439B2 (en) * 2011-02-25 2015-07-21 Maxim Integrated Products, Inc. Circuits, devices and methods having pipelined capacitance sensing
US8860432B2 (en) 2011-02-25 2014-10-14 Maxim Integrated Products, Inc. Background noise measurement and frequency selection in touch panel sensor systems
US9504390B2 (en) 2011-03-04 2016-11-29 Globalfoundries Inc. Detecting, assessing and managing a risk of death in epilepsy
US8725239B2 (en) 2011-04-25 2014-05-13 Cyberonics, Inc. Identifying seizures using heart rate decrease
US9402550B2 (en) 2011-04-29 2016-08-02 Cybertronics, Inc. Dynamic heart rate threshold for neurological event detection
FR2977319B1 (en) * 2011-07-01 2014-03-14 Commissariat Energie Atomique OPTIMIZED SENSIBLITY PRESSURE MEASURING DEVICE
US9635460B2 (en) * 2011-08-18 2017-04-25 Knowles Electronics, Llc Sensitivity adjustment apparatus and method for MEMS devices
US8854062B2 (en) * 2011-08-29 2014-10-07 Robert Bosch Gmbh Readout circuit for self-balancing capacitor bridge
US10206591B2 (en) 2011-10-14 2019-02-19 Flint Hills Scientific, Llc Seizure detection methods, apparatus, and systems using an autoregression algorithm
US9610044B2 (en) * 2011-11-08 2017-04-04 Imec Variable capacitor circuit and method
BR112014015644A8 (en) 2011-12-21 2017-07-04 Intel Corp low power silencer circuit
US9791494B2 (en) * 2012-01-20 2017-10-17 Lear Corporation Apparatus and method for diagnostics of a capacitive sensor
US8978475B2 (en) 2012-02-01 2015-03-17 Fairchild Semiconductor Corporation MEMS proof mass with split z-axis portions
US9488693B2 (en) * 2012-04-04 2016-11-08 Fairchild Semiconductor Corporation Self test of MEMS accelerometer with ASICS integrated capacitors
KR102045784B1 (en) * 2012-04-04 2019-11-18 페어차일드 세미컨덕터 코포레이션 Noise reduction method with chopping for a merged mems accelerometer sensor
KR102034604B1 (en) * 2012-04-04 2019-10-21 페어차일드 세미컨덕터 코포레이션 Self test of mems accelerometer with asics integrated capacitors
EP2647955B8 (en) 2012-04-05 2018-12-19 Fairchild Semiconductor Corporation MEMS device quadrature phase shift cancellation
EP2647952B1 (en) 2012-04-05 2017-11-15 Fairchild Semiconductor Corporation Mems device automatic-gain control loop for mechanical amplitude drive
EP2648334B1 (en) 2012-04-05 2020-06-10 Fairchild Semiconductor Corporation Mems device front-end charge amplifier
US9907959B2 (en) 2012-04-12 2018-03-06 Medtronic, Inc. Velocity detection for posture-responsive therapy
US9625272B2 (en) 2012-04-12 2017-04-18 Fairchild Semiconductor Corporation MEMS quadrature cancellation and signal demodulation
US10448839B2 (en) 2012-04-23 2019-10-22 Livanova Usa, Inc. Methods, systems and apparatuses for detecting increased risk of sudden death
US9681836B2 (en) 2012-04-23 2017-06-20 Cyberonics, Inc. Methods, systems and apparatuses for detecting seizure and non-seizure states
US9737719B2 (en) 2012-04-26 2017-08-22 Medtronic, Inc. Adjustment of therapy based on acceleration
DE102013014881B4 (en) 2012-09-12 2023-05-04 Fairchild Semiconductor Corporation Enhanced silicon via with multi-material fill
RU2523122C1 (en) * 2012-12-07 2014-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ФГБОУ ВПО "ЮРГУЭС") Fast-response transducer of physical magnitudes with potential output
US10220211B2 (en) 2013-01-22 2019-03-05 Livanova Usa, Inc. Methods and systems to diagnose depression
US9574907B2 (en) 2013-03-15 2017-02-21 Semtech Corporation Semiconductor device and method of direct measurement and acquisition of MEMS employing sigma-delta loop
US9798390B2 (en) * 2013-07-19 2017-10-24 Cm Hk Limited Electronic device and method of motion processing
US9697831B2 (en) * 2013-06-26 2017-07-04 Cirrus Logic, Inc. Speech recognition
DE102013212588B4 (en) * 2013-06-28 2023-10-12 Robert Bosch Gmbh Method for detecting foreign objects in an induction charging device
CN103308721B (en) * 2013-07-04 2015-01-21 中国科学院地质与地球物理研究所 Capacitance reading circuit of inertia detecting element
CN104698871B (en) * 2013-12-04 2017-12-19 无锡华润上华科技有限公司 A kind of sensor control circuit and electronic installation
JP6411795B2 (en) * 2014-02-13 2018-10-24 ソニーセミコンダクタソリューションズ株式会社 Signal processing apparatus and method, imaging device, and imaging apparatus
KR20160123364A (en) * 2014-03-14 2016-10-25 로베르트 보쉬 게엠베하 Integrated self-test for electro-mechanical capacitive sensors
US9645029B2 (en) * 2014-04-07 2017-05-09 Infineon Technology Ag Force feedback loop for pressure sensors
US9921249B2 (en) * 2014-04-30 2018-03-20 Infineon Technologies Ag Systems and methods for high voltage bridge bias generation and low voltage readout circuitry
EP2975501B1 (en) * 2014-07-18 2023-08-02 Semtech Corporation A measuring circuit and measuring method for a capacitive touch-sensitive panel
FI127101B (en) * 2014-10-13 2017-11-15 Murata Manufacturing Co Capacitive microelectromechanical sensor with self-testing capability
DE102014224222A1 (en) * 2014-11-27 2016-01-07 Carl Zeiss Smt Gmbh Capacitive measuring sensor and position measuring device for determining a position of a measuring object and positioning device with such a measuring sensor
US10317250B2 (en) * 2015-01-16 2019-06-11 Ion Geophysical Corporation Direct coupling of a capacitive sensor to a delta-sigma converter
US9522276B2 (en) 2015-01-22 2016-12-20 Medtronic, Inc. Accelerometer integrity alert
US9750943B2 (en) 2015-02-26 2017-09-05 Medtronic, Inc. Monitoring of pacing capture using acceleration
US9645633B2 (en) 2015-03-31 2017-05-09 Synaptics Incorporated Single receiver superdoze mode
JP6463511B2 (en) * 2015-05-29 2019-02-06 デーナ、オータモウティヴ、システィムズ、グループ、エルエルシー Device for sensing the position of an actuator assembly of a locking gear set
CN106249970B (en) * 2015-06-05 2020-11-27 恩智浦美国有限公司 Capacitive sensor with noise suppression
US10060172B2 (en) * 2015-08-21 2018-08-28 Magna Closures Inc. Variable resistance conductive rubber sensor and method of detecting an object/human touch therewith
US9639226B2 (en) * 2015-08-31 2017-05-02 Cypress Semiconductor Corporation Differential sigma-delta capacitance sensing devices and methods
CN105119601B (en) * 2015-09-02 2018-08-03 北京兆易创新科技股份有限公司 A kind of multi-center selection circuit being suitable for A/D converter with high speed and high precision
US10197526B2 (en) * 2015-09-03 2019-02-05 Honeywell International Inc. FET and fiber based sensor
EP3141911B1 (en) * 2015-09-08 2021-03-24 Hioki Denki Kabushiki Kaisha Voltage detecting probe and measuring device
CN106558507B (en) * 2015-09-23 2019-04-26 中芯国际集成电路制造(北京)有限公司 Test structure and forming method thereof, test method
JP6503275B2 (en) 2015-10-09 2019-04-17 株式会社ジャパンディスプレイ Sensor and display device with sensor
ES2920857T3 (en) * 2015-12-18 2022-08-10 Omicron Electronics Gmbh Mobile Transformer Test Device and Procedure for Testing a Power Transformer
US10168194B2 (en) * 2015-12-24 2019-01-01 Analog Devices, Inc. Method and apparatus for driving a multi-oscillator system
US10578461B2 (en) * 2016-01-06 2020-03-03 Disuptive Technologies Research AS Capacitive sensor readout circuit
TWI557529B (en) * 2016-01-12 2016-11-11 新唐科技股份有限公司 Reference voltage circuit
FR3050037B1 (en) * 2016-04-12 2018-03-23 Commissariat A L'energie Atomique Et Aux Energies Alternatives SYSTEM AND METHOD FOR TESTING AN INTEGRATED CIRCUIT
US10406368B2 (en) 2016-04-19 2019-09-10 Boston Scientific Neuromodulation Corporation Pulse generator system for promoting desynchronized firing of recruited neural populations
US10153740B2 (en) * 2016-07-11 2018-12-11 Knowles Electronics, Llc Split signal differential MEMS microphone
JP6733381B2 (en) 2016-07-15 2020-07-29 セイコーエプソン株式会社 Physical quantity detection circuit, physical quantity detection device, electronic device and moving body
DE102017001849A1 (en) * 2017-02-25 2018-08-30 Man Truck & Bus Ag Technique for insulation monitoring in vehicles
US10162467B2 (en) 2017-03-08 2018-12-25 Cypress Semiconductor Corporation Ratiometric mutual-capacitance-to-code converter
CN107271723B (en) * 2017-05-16 2020-01-03 温胜洁 Flexible filtering method for triaxial acceleration data for motion detection
US11612751B2 (en) 2017-08-11 2023-03-28 Boston Scientific Neuromodulation Corporation Stimulation configuration variation to control evoked temporal patterns
US11129987B2 (en) 2017-10-04 2021-09-28 Boston Scientific Neuromodulation Corporation Adjustment of stimulation in a stimulator using detected evoked compound action potentials
AU2019205211B2 (en) 2018-01-08 2021-08-05 Boston Scientific Neuromodulation Corporation Automatic adjustment of sub-perception therapy in an implantable stimulator using detected compound action potentials
WO2019177798A1 (en) 2018-03-12 2019-09-19 Boston Scientific Neuromodulation Corporation Neural stimulation with decomposition of evoked compound action potentials
US10974042B2 (en) 2018-03-26 2021-04-13 Boston Scientific Neuromodulation Corporation System and methods for heart rate and electrocardiogram extraction from a spinal cord stimulation system
US11040202B2 (en) 2018-03-30 2021-06-22 Boston Scientific Neuromodulation Corporation Circuitry to assist with neural sensing in an implantable stimulator device
US10651864B2 (en) * 2018-04-25 2020-05-12 Qualcomm Incorporated Time-interleaved charge sampler receiver
WO2019231796A1 (en) * 2018-06-01 2019-12-05 Boston Scientific Neuromodulation Corporation Artifact reduction in a sensed neural response
CL2018001900A1 (en) * 2018-07-12 2018-10-05 Biomedical Devices Spa System and method of functional electro stimulation that allows to deliver coordinated and natural movements for people or animals with damage to the motor system
CN108803682B (en) * 2018-08-01 2022-04-12 歌尔光学科技有限公司 Signal processing assembly and system
US10291226B1 (en) 2018-09-27 2019-05-14 IQ-Analog Corporation Sample-and-hold circuit with enhanced noise limit
US11693020B2 (en) 2018-11-06 2023-07-04 Rohm Co., Ltd. Accelerometer having a root-mean-square (RMS) output
US11287443B2 (en) * 2019-02-20 2022-03-29 Invensense, Inc. High performance accelerometer
AU2020256033B2 (en) 2019-03-29 2022-11-24 Boston Scientific Neuromodulation Corporation Neural sensing in an implantable stimulator device during the provision of active stimulation
US11633138B2 (en) 2019-03-29 2023-04-25 Boston Scientific Neuromodulation Corporation Circuitry to assist with neural sensing in an implantable stimulator device in the presence of stimulation artifacts
WO2020243096A1 (en) 2019-05-30 2020-12-03 Boston Scientific Neuromodulation Corporation Methods and systems for discrete measurement of electrical characteristics
AU2020298313B2 (en) 2019-06-20 2023-06-08 Boston Scientific Neuromodulation Corporation Methods and systems for interleaving waveforms for electrical stimulation and measurement
US11108404B1 (en) 2020-07-22 2021-08-31 Analog Devices, Inc. Low noise integrated circuit techniques
US11442578B2 (en) * 2020-08-31 2022-09-13 Cypress Semiconductor Corporation Ratio-metric multi-sensing convertor
US11515884B2 (en) 2021-04-14 2022-11-29 Analog Devices, Inc. Noise reducing capacitance driver
US11913988B2 (en) 2021-05-10 2024-02-27 Qualcomm Technologies, Inc. Transducer built-in self-test
US11889252B2 (en) * 2021-05-11 2024-01-30 Knowles Electronics, Llc Method and apparatus for balancing detection sensitivity in producing a differential signal
US11467693B1 (en) * 2021-08-06 2022-10-11 Cypress Semiconductor Corporation Impedance sensing methods
CN114018298B (en) * 2021-10-22 2022-07-22 西安电子科技大学 Capacitance-voltage conversion circuit for MEMS capacitive sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1548409A1 (en) * 2003-12-23 2005-06-29 Dialog Semiconductor GmbH Differential capacitance measurement
WO2005103739A1 (en) * 2004-04-27 2005-11-03 Atmel Grenoble Method and device for measuring with synchronous detection and correlated sampling

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631424A (en) * 1969-07-22 1971-12-28 Honeywell Inc Binary data detecting apparatus responsive to the change in sign of the slope of a waveform
US4385321A (en) 1980-11-14 1983-05-24 Northrop Corporation Correlated triple sampling circuit
US5253510A (en) 1989-06-22 1993-10-19 I C Sensors Self-testable micro-accelerometer
JPH04126477A (en) 1990-09-17 1992-04-27 Sanyo Electric Co Ltd Digital ccd camera
US5587518A (en) 1994-12-23 1996-12-24 Ford Motor Company Accelerometer with a combined self-test and ground electrode
US5748004A (en) 1996-03-15 1998-05-05 Analog Devices, Inc. Reset switch for a micromachined device
US5838176A (en) * 1996-07-11 1998-11-17 Foveonics, Inc. Correlated double sampling circuit
US5939633A (en) 1997-06-18 1999-08-17 Analog Devices, Inc. Apparatus and method for multi-axis capacitive sensing
US6088608A (en) 1997-10-20 2000-07-11 Alfred E. Mann Foundation Electrochemical sensor and integrity tests therefor
JP4015242B2 (en) 1997-10-30 2007-11-28 浜松ホトニクス株式会社 CCD camera
US6117643A (en) * 1997-11-25 2000-09-12 Ut Battelle, Llc Bioluminescent bioreporter integrated circuit
US6629448B1 (en) 2000-02-25 2003-10-07 Seagate Technology Llc In-situ testing of a MEMS accelerometer in a disc storage system
US6448599B1 (en) * 2000-11-29 2002-09-10 United Microelectronics Corp. Semiconductor device for preventing process-induced charging damages
US6658292B2 (en) 2001-08-24 2003-12-02 Pacesetter, Inc. Detection of patient's position and activity status using 3D accelerometer-based position sensor
US6662047B2 (en) 2001-09-05 2003-12-09 Pacesetter, Inc. Pacing mode to reduce effects of orthostatic hypotension and syncope
US6734659B1 (en) * 2002-06-13 2004-05-11 Mykrolis Corporation Electronic interface for use with dual electrode capacitance diaphragm gauges
US7117036B2 (en) 2002-06-27 2006-10-03 Pacesetter, Inc. Using activity-based rest disturbance as a metric of sleep apnea
US9149322B2 (en) * 2003-03-31 2015-10-06 Edward Wells Knowlton Method for treatment of tissue
EP1608432B1 (en) 2003-04-02 2013-09-11 Neurostream Technologies General Partnership Implantable nerve signal sensing and stimulation device for treating foot drop and other neurological disorders
JP4691883B2 (en) 2004-01-30 2011-06-01 富士ゼロックス株式会社 Method for producing particles for display device
ITTO20040436A1 (en) 2004-06-28 2004-09-28 St Microelectronics Srl FREE FALL DETECTION DEVICE FOR THE PROTECTION OF PORTABLE APPLIANCES.
US7437644B2 (en) 2004-10-29 2008-10-14 Codman Neuro Sciences Sárl Automatic self-testing of an internal device in a closed system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1548409A1 (en) * 2003-12-23 2005-06-29 Dialog Semiconductor GmbH Differential capacitance measurement
WO2005103739A1 (en) * 2004-04-27 2005-11-03 Atmel Grenoble Method and device for measuring with synchronous detection and correlated sampling

Also Published As

Publication number Publication date
JP2010505335A (en) 2010-02-18
EP2192387A3 (en) 2013-07-31
CA2664862A1 (en) 2008-04-10
EP2192387B1 (en) 2018-01-10
JP5048070B2 (en) 2012-10-17
EP2074381A2 (en) 2009-07-01
ATE467821T1 (en) 2010-05-15
US8000789B2 (en) 2011-08-16
WO2008042015A2 (en) 2008-04-10
CN101568805A (en) 2009-10-28
US20110267212A1 (en) 2011-11-03
US8352030B2 (en) 2013-01-08
CA2664862C (en) 2012-10-23
EP2074381B1 (en) 2010-05-12
EP2192387A2 (en) 2010-06-02
AU2007302788B2 (en) 2010-12-16
DE602007006528D1 (en) 2010-06-24
AU2007302788A1 (en) 2008-04-10
US20080079444A1 (en) 2008-04-03
CN101568805B (en) 2011-05-04

Similar Documents

Publication Publication Date Title
WO2008042015A3 (en) Capacitive interface circuit for low power sensor system
WO2008148794A3 (en) Gnss positioning using pressure sensors
WO2007147027A3 (en) Pressure transducer with differential amplifier
WO2007001866A3 (en) Hand cleanliness
WO2006138697A3 (en) Integrated displacement sensors for probe microscopy and force spectroscopy
WO2008064500A3 (en) System for measuring a physical variable
WO2010031850A3 (en) Method for operating a lift system, call input device, lift system comprising a call input device of this type and method for retrofitting a lift system with a call input device of this type
WO2005098581A3 (en) Methods and apparatus for palpation simulation
TW200727263A (en) Audio device
WO2009158628A3 (en) Dynamic selection of sensitivity of tilt functionality
WO2008090747A1 (en) Σ-δ type analog-to-digital (ad) converter and angular velocity sensor using same
TW200609523A (en) Calibration circuit and method for filter bandwidth which is parasitic capacitance sensitive or insensitive
WO2008133927A8 (en) Measurement instrument and method
WO2011028348A3 (en) Die location compensation
WO2007118183A3 (en) Pressure transducer with increased sensitivity
ATE435527T1 (en) ADJUSTING THE FILTER OF A CONTINUOUS TIME SIGMA-DELTA CONVERTER
WO2008060872A8 (en) Infant apparatus actuated by sucking
WO2007081472A3 (en) Rain sensor with capacitive-inclusive circuit
WO2010028883A3 (en) Inductive position sensor, measuring sensor fitted therewith and method for operating a position sensor
TW200746654A (en) Adjusting an input signal level of a sigma-delta converter
WO2007124834A3 (en) Method for calibrating and/or adjusting a sensor, especially an electrochemical, electrophysical or optical sensor, and corresponding sensor
WO2007136855A3 (en) Temperature sensor adaptors and methods
WO2009008458A1 (en) Correction circuit and test device
WO2009051069A1 (en) Gmr sensor
WO2008016986A3 (en) Noise rejection filter for trigger circuit

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200780036509.X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07755923

Country of ref document: EP

Kind code of ref document: A2

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2007302788

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2664862

Country of ref document: CA

Ref document number: 2009530331

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2007302788

Country of ref document: AU

Date of ref document: 20070424

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2007755923

Country of ref document: EP