CN106999985B - 用于2-d波束成形的压电超声换能器的超像素阵列 - Google Patents
用于2-d波束成形的压电超声换能器的超像素阵列 Download PDFInfo
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- CN106999985B CN106999985B CN201580054066.1A CN201580054066A CN106999985B CN 106999985 B CN106999985 B CN 106999985B CN 201580054066 A CN201580054066 A CN 201580054066A CN 106999985 B CN106999985 B CN 106999985B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
- B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
- B06B1/0666—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface used as a diaphragm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/04—Systems determining presence of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52079—Constructional features
- G01S7/5208—Constructional features with integration of processing functions inside probe or scanhead
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
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- G—PHYSICS
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
- G06F3/0436—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate
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- G—PHYSICS
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- G—PHYSICS
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- G06V40/20—Movements or behaviour, e.g. gesture recognition
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- G—PHYSICS
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- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/346—Circuits therefor using phase variation
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/87—Electrodes or interconnections, e.g. leads or terminals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/20—Application to multi-element transducer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Health & Medical Sciences (AREA)
- Psychiatry (AREA)
- Social Psychology (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462064418P | 2014-10-15 | 2014-10-15 | |
| US201462064417P | 2014-10-15 | 2014-10-15 | |
| US201462064416P | 2014-10-15 | 2014-10-15 | |
| US62/064,418 | 2014-10-15 | ||
| US62/064,417 | 2014-10-15 | ||
| US62/064,416 | 2014-10-15 | ||
| US201562241651P | 2015-10-14 | 2015-10-14 | |
| US14/883,585 US9995821B2 (en) | 2014-10-15 | 2015-10-14 | Active beam-forming technique for piezoelectric ultrasonic transducer array |
| US14/883,583 | 2015-10-14 | ||
| US14/883,586 | 2015-10-14 | ||
| US14/883,586 US10139479B2 (en) | 2014-10-15 | 2015-10-14 | Superpixel array of piezoelectric ultrasonic transducers for 2-D beamforming |
| US14/883,583 US10001552B2 (en) | 2014-10-15 | 2015-10-14 | Three-port piezoelectric ultrasonic transducer |
| US62/241,651 | 2015-10-14 | ||
| US14/883,585 | 2015-10-14 | ||
| PCT/US2015/055821 WO2016061406A1 (en) | 2014-10-15 | 2015-10-15 | Superpixel array of piezoelectric ultrasonic transducers for 2-d beamforming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106999985A CN106999985A (zh) | 2017-08-01 |
| CN106999985B true CN106999985B (zh) | 2019-06-04 |
Family
ID=55748292
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580054066.1A Active CN106999985B (zh) | 2014-10-15 | 2015-10-15 | 用于2-d波束成形的压电超声换能器的超像素阵列 |
| CN201580054255.9A Active CN107107114B (zh) | 2014-10-15 | 2015-10-15 | 三端口压电超声换能器 |
| CN201580055338.XA Active CN106794487B (zh) | 2014-10-15 | 2015-10-15 | 用于压电超声换能器阵列的主动波束成形技术 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580054255.9A Active CN107107114B (zh) | 2014-10-15 | 2015-10-15 | 三端口压电超声换能器 |
| CN201580055338.XA Active CN106794487B (zh) | 2014-10-15 | 2015-10-15 | 用于压电超声换能器阵列的主动波束成形技术 |
Country Status (7)
| Country | Link |
|---|---|
| US (3) | US9995821B2 (enExample) |
| EP (3) | EP3207498A1 (enExample) |
| JP (1) | JP2018502467A (enExample) |
| KR (1) | KR102004061B1 (enExample) |
| CN (3) | CN106999985B (enExample) |
| BR (1) | BR112017007742B1 (enExample) |
| CA (1) | CA2961645C (enExample) |
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| US11327599B2 (en) | 2011-04-26 | 2022-05-10 | Sentons Inc. | Identifying a contact type |
| US20140355387A1 (en) | 2013-06-03 | 2014-12-04 | Qualcomm Incorporated | Ultrasonic receiver with coated piezoelectric layer |
| US11026655B2 (en) * | 2014-09-26 | 2021-06-08 | Samsung Electronics Co., Ltd. | Ultrasound diagnostic apparatus and method of generating B-flow ultrasound image with single transmission and reception event |
| US9995821B2 (en) | 2014-10-15 | 2018-06-12 | Qualcomm Incorporated | Active beam-forming technique for piezoelectric ultrasonic transducer array |
| US10008659B2 (en) * | 2014-12-09 | 2018-06-26 | Lg Innotek Co., Ltd. | Fingerprint sensor |
| CN106291562A (zh) * | 2015-05-30 | 2017-01-04 | 鸿富锦精密工业(深圳)有限公司 | 超声波感测器及其制造方法、超声波感测器阵列 |
| US10387704B2 (en) * | 2015-06-29 | 2019-08-20 | Qualcomm Incorporated | Method and apparatus for enabling the touchscreen display of a mobile device |
| US10067229B2 (en) * | 2015-09-24 | 2018-09-04 | Qualcomm Incorporated | Receive-side beam forming for an ultrasonic image sensor |
| US10275633B1 (en) * | 2015-09-29 | 2019-04-30 | Apple Inc. | Acoustic imaging system for spatial demodulation of acoustic waves |
| US10497748B2 (en) * | 2015-10-14 | 2019-12-03 | Qualcomm Incorporated | Integrated piezoelectric micromechanical ultrasonic transducer pixel and array |
| US10088963B2 (en) * | 2015-10-26 | 2018-10-02 | Semiconductor Components Industries, Llc | Methods and apparatus for a capacitive sensor |
| US10618079B2 (en) | 2016-02-29 | 2020-04-14 | Qualcomm Incorporated | Piezoelectric micromechanical ultrasonic transducers and transducer arrays |
| US10656255B2 (en) | 2016-05-04 | 2020-05-19 | Invensense, Inc. | Piezoelectric micromachined ultrasonic transducer (PMUT) |
| US10670716B2 (en) | 2016-05-04 | 2020-06-02 | Invensense, Inc. | Operating a two-dimensional array of ultrasonic transducers |
| US10445547B2 (en) | 2016-05-04 | 2019-10-15 | Invensense, Inc. | Device mountable packaging of ultrasonic transducers |
| US10325915B2 (en) | 2016-05-04 | 2019-06-18 | Invensense, Inc. | Two-dimensional array of CMOS control elements |
| US10315222B2 (en) | 2016-05-04 | 2019-06-11 | Invensense, Inc. | Two-dimensional array of CMOS control elements |
| US20170323130A1 (en) * | 2016-05-06 | 2017-11-09 | Qualcomm Incorporated | Bidirectional ultrasonic sensor system for biometric devices |
| US10539539B2 (en) | 2016-05-10 | 2020-01-21 | Invensense, Inc. | Operation of an ultrasonic sensor |
| US10706835B2 (en) | 2016-05-10 | 2020-07-07 | Invensense, Inc. | Transmit beamforming of a two-dimensional array of ultrasonic transducers |
| US10562070B2 (en) * | 2016-05-10 | 2020-02-18 | Invensense, Inc. | Receive operation of an ultrasonic sensor |
| US10452887B2 (en) * | 2016-05-10 | 2019-10-22 | Invensense, Inc. | Operating a fingerprint sensor comprised of ultrasonic transducers |
| US10408797B2 (en) | 2016-05-10 | 2019-09-10 | Invensense, Inc. | Sensing device with a temperature sensor |
| US10441975B2 (en) | 2016-05-10 | 2019-10-15 | Invensense, Inc. | Supplemental sensor modes and systems for ultrasonic transducers |
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| US10600403B2 (en) | 2016-05-10 | 2020-03-24 | Invensense, Inc. | Transmit operation of an ultrasonic sensor |
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| WO2018004688A1 (en) * | 2016-07-01 | 2018-01-04 | Intel Corporation | Piezoelectric package-integrated acoustic transducer devices |
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| DE102016115260B3 (de) * | 2016-08-17 | 2018-02-08 | Infineon Technologies Ag | Schallwellensensor |
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| US11039814B2 (en) * | 2016-12-04 | 2021-06-22 | Exo Imaging, Inc. | Imaging devices having piezoelectric transducers |
| JP6618938B2 (ja) * | 2017-02-10 | 2019-12-11 | 株式会社東芝 | トランスデューサおよびトランスデューサアレイ |
| KR101955786B1 (ko) | 2017-02-20 | 2019-03-11 | 한국표준과학연구원 | 동심원 전극을 적용한 집속 초음파 트랜스듀서 및 그 트랜스듀서의 제어방법 |
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2015
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- 2015-10-14 US US14/883,586 patent/US10139479B2/en active Active
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- 2015-10-15 CN CN201580054255.9A patent/CN107107114B/zh active Active
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| CN106794487A (zh) | 2017-05-31 |
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| CN106794487B (zh) | 2019-02-01 |
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| EP3207497A1 (en) | 2017-08-23 |
| EP3206804A1 (en) | 2017-08-23 |
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| US20160107194A1 (en) | 2016-04-21 |
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| EP3207498A1 (en) | 2017-08-23 |
| BR112017007742A2 (pt) | 2018-01-30 |
| KR20170066434A (ko) | 2017-06-14 |
| US9995821B2 (en) | 2018-06-12 |
| EP3206804B1 (en) | 2022-03-30 |
| US20160132187A1 (en) | 2016-05-12 |
| CN106999985A (zh) | 2017-08-01 |
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