SG10201906195QA - Device for audio signal processing for a piezoelectric speaker - Google Patents

Device for audio signal processing for a piezoelectric speaker

Info

Publication number
SG10201906195QA
SG10201906195QA SG10201906195QA SG10201906195QA SG10201906195QA SG 10201906195Q A SG10201906195Q A SG 10201906195QA SG 10201906195Q A SG10201906195Q A SG 10201906195QA SG 10201906195Q A SG10201906195Q A SG 10201906195QA SG 10201906195Q A SG10201906195Q A SG 10201906195QA
Authority
SG
Singapore
Prior art keywords
signal processing
audio signal
piezoelectric speaker
piezoelectric
speaker
Prior art date
Application number
SG10201906195QA
Other languages
English (en)
Inventor
Rusconi Clerici Beltrami Andrea
Bottoni Ferruccio
Strle Drago
Original Assignee
USound GmbH
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 USound GmbH filed Critical USound GmbH
Publication of SG10201906195QA publication Critical patent/SG10201906195QA/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/06—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electrostatic transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • 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
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/01—Noise reduction using microphones having different directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
SG10201906195QA 2018-07-12 2019-07-03 Device for audio signal processing for a piezoelectric speaker SG10201906195QA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018116924.8A DE102018116924A1 (de) 2018-07-12 2018-07-12 Vorrichtung zur Audiosignalverarbeitung für einen piezoelektrischen Lautsprecher

Publications (1)

Publication Number Publication Date
SG10201906195QA true SG10201906195QA (en) 2020-02-27

Family

ID=67262220

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201906195QA SG10201906195QA (en) 2018-07-12 2019-07-03 Device for audio signal processing for a piezoelectric speaker

Country Status (10)

Country Link
US (1) US10812905B2 (fr)
EP (1) EP3595332B1 (fr)
KR (1) KR20200007687A (fr)
CN (1) CN110719555B (fr)
AU (1) AU2019204806A1 (fr)
CA (1) CA3049359A1 (fr)
DE (1) DE102018116924A1 (fr)
MY (1) MY193088A (fr)
SG (1) SG10201906195QA (fr)
TW (1) TW202007187A (fr)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62123899A (ja) * 1985-11-25 1987-06-05 Nippon Telegr & Teleph Corp <Ntt> 指向性マイクロホン装置
GB9103777D0 (en) 1991-02-22 1991-04-10 B & W Loudspeakers Analogue and digital convertors
DE10255352B3 (de) * 2002-11-27 2004-02-12 Infineon Technologies Ag Verfahren und Vorrichtung zur Korrektur von Signalverzerrungen in einer Verstärkereinrichtung
DE10393487B3 (de) * 2002-11-27 2007-05-16 Infineon Technologies Ag Verfahren und Vorrichtung zur Korrektur von Signalverzerrungen in einer Verstärkereinrichtung
JP4867565B2 (ja) * 2005-11-29 2012-02-01 セイコーエプソン株式会社 容量性負荷の駆動回路、および超音波スピーカ
IL187544A0 (en) 2007-11-21 2008-03-20 Audiodent Israel Ltd Circuitry of a low-power piezoelectric driver and method thereof
ATE499645T1 (de) * 2008-04-24 2011-03-15 Research In Motion Ltd System und verfahren zur erzeugung eines rückmeldungssignals als antwort auf ein eingangssignal an eine elektronische vorrichtung
US8594346B2 (en) * 2010-06-15 2013-11-26 Silverplus, Inc. Audio output drivers for piezo speakers
JP5866369B2 (ja) * 2010-10-27 2016-02-17 メルス オーディオ アンパーツゼルスカブ マルチレベルのパルス幅変調を使用するオーディオアンプ
KR101831013B1 (ko) * 2010-11-26 2018-02-21 오디오 픽셀즈 리미티드 액츄에이터 어레이에서의 개별 어드레싱 및 잡음 감소를 위한 장치 및 방법
CN104272687B (zh) * 2012-03-07 2017-10-24 思睿逻辑国际半导体有限公司 信号转换系统及方法
US9531433B2 (en) * 2014-02-07 2016-12-27 Analog Devices Global Echo cancellation methodology and assembly for electroacoustic communication apparatuses
US9319062B2 (en) * 2014-09-02 2016-04-19 Nokia Technologies Oy Dynamic range reduction for analog-to-digital converters
US9577663B1 (en) * 2015-10-02 2017-02-21 Infineon Technologies Austria Ag Bandwidth extension of oversampled analog-to-digital converters by means of gain boosting
DE102016120545A1 (de) * 2016-10-27 2018-05-03 USound GmbH Verstärkereinheit zum Betreiben eines piezoelektrischen Schallwandlers und/oder eines dynamischen Schallwandlers sowie eine Schallerzeugungseinheit

Also Published As

Publication number Publication date
KR20200007687A (ko) 2020-01-22
MY193088A (en) 2022-09-26
AU2019204806A1 (en) 2020-01-30
TW202007187A (zh) 2020-02-01
EP3595332B1 (fr) 2024-03-20
DE102018116924A1 (de) 2020-01-16
CA3049359A1 (fr) 2020-01-12
US20200021914A1 (en) 2020-01-16
US10812905B2 (en) 2020-10-20
EP3595332A1 (fr) 2020-01-15
CN110719555B (zh) 2023-04-07
CN110719555A (zh) 2020-01-21

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