JP6260817B2 - デジタルマイクロホンおよび位置−周波数変換器 - Google Patents

デジタルマイクロホンおよび位置−周波数変換器 Download PDF

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Publication number
JP6260817B2
JP6260817B2 JP2014028159A JP2014028159A JP6260817B2 JP 6260817 B2 JP6260817 B2 JP 6260817B2 JP 2014028159 A JP2014028159 A JP 2014028159A JP 2014028159 A JP2014028159 A JP 2014028159A JP 6260817 B2 JP6260817 B2 JP 6260817B2
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JP
Japan
Prior art keywords
cavity resonator
waveguide
membrane
signal
generation unit
Prior art date
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Expired - Fee Related
Application number
JP2014028159A
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English (en)
Japanese (ja)
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JP2015154374A5 (https=
JP2015154374A (ja
Inventor
前澤　宏一
宏一 前澤
孝一郎 田上
孝一郎 田上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audio Technica KK
University of Toyama NUC
Original Assignee
Audio Technica KK
University of Toyama NUC
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 Audio Technica KK, University of Toyama NUC filed Critical Audio Technica KK
Priority to JP2014028159A priority Critical patent/JP6260817B2/ja
Priority to US14/615,471 priority patent/US9503811B2/en
Priority to EP15155268.4A priority patent/EP2908548B1/en
Publication of JP2015154374A publication Critical patent/JP2015154374A/ja
Publication of JP2015154374A5 publication Critical patent/JP2015154374A5/ja
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/43—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
JP2014028159A 2014-02-18 2014-02-18 デジタルマイクロホンおよび位置−周波数変換器 Expired - Fee Related JP6260817B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014028159A JP6260817B2 (ja) 2014-02-18 2014-02-18 デジタルマイクロホンおよび位置−周波数変換器
US14/615,471 US9503811B2 (en) 2014-02-18 2015-02-06 Digital microphone and position-to-frequency converter
EP15155268.4A EP2908548B1 (en) 2014-02-18 2015-02-16 Digital microphone and position-to-frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014028159A JP6260817B2 (ja) 2014-02-18 2014-02-18 デジタルマイクロホンおよび位置−周波数変換器

Publications (3)

Publication Number Publication Date
JP2015154374A JP2015154374A (ja) 2015-08-24
JP2015154374A5 JP2015154374A5 (https=) 2017-02-16
JP6260817B2 true JP6260817B2 (ja) 2018-01-17

Family

ID=52589242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014028159A Expired - Fee Related JP6260817B2 (ja) 2014-02-18 2014-02-18 デジタルマイクロホンおよび位置−周波数変換器

Country Status (3)

Country Link
US (1) US9503811B2 (https=)
EP (1) EP2908548B1 (https=)
JP (1) JP6260817B2 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11371879B2 (en) * 2018-10-18 2022-06-28 Pinfold Technologies Limited. Microwave oscillator ultrasound receiver

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494570A (en) 1946-01-22 1950-01-17 George R Mezger Electrical transducer
DE804445C (de) 1949-05-14 1951-04-23 Siemens Ag Mikrophon in Hochfrequenzschaltung
JPS5040271A (https=) * 1973-08-16 1975-04-12
JPS5544404Y2 (https=) * 1974-05-09 1980-10-18
US4211987A (en) * 1977-11-30 1980-07-08 Harris Corporation Cavity excitation utilizing microstrip, strip, or slot line
JPS5854706A (ja) * 1981-09-28 1983-03-31 Fujitsu Ltd 周波数変調発振器
JPH053410A (ja) * 1991-06-19 1993-01-08 Kyocera Corp 同軸型共振器によるスロツトアンテナ
GB9711374D0 (en) 1997-06-02 1997-07-30 H Vin Mats E Signal processing
JP2002125299A (ja) * 2000-08-11 2002-04-26 Aoi Electronics Co Ltd マイクロホン装置
GB2386280B (en) 2002-03-07 2005-09-14 Zarlink Semiconductor Inc Digital microphone
US6975258B2 (en) * 2003-01-23 2005-12-13 Corporation For National Research Initiatives Circuit for direct digital delta-sigma conversion of variable electrical capacitance
JP5162796B2 (ja) * 2008-03-11 2013-03-13 株式会社オーディオテクニカ デジタルマイクロホン
MX2012012706A (es) * 2010-05-03 2013-04-29 Goji Ltd Analisis modal.
FR2996061B1 (fr) * 2012-09-27 2015-12-25 Commissariat Energie Atomique Structure acoustique comportant au moins un resonateur et au moins une capacite cointegree dans une meme couche piezoelectrique ou ferroelectrique

Also Published As

Publication number Publication date
US20150237442A1 (en) 2015-08-20
EP2908548B1 (en) 2016-09-07
US9503811B2 (en) 2016-11-22
EP2908548A1 (en) 2015-08-19
JP2015154374A (ja) 2015-08-24

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