JP2007267368A - スピーカ装置、音響再生方法、及びスピーカ制御装置 - Google Patents

スピーカ装置、音響再生方法、及びスピーカ制御装置 Download PDF

Info

Publication number
JP2007267368A
JP2007267368A JP2007026549A JP2007026549A JP2007267368A JP 2007267368 A JP2007267368 A JP 2007267368A JP 2007026549 A JP2007026549 A JP 2007026549A JP 2007026549 A JP2007026549 A JP 2007026549A JP 2007267368 A JP2007267368 A JP 2007267368A
Authority
JP
Japan
Prior art keywords
frequency band
signal
filter
audible frequency
wave
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
JP2007026549A
Other languages
English (en)
Japanese (ja)
Other versions
JP2007267368A5 (enExample
Inventor
Shinichi Miyazaki
新一 宮▲崎▼
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP2007026549A priority Critical patent/JP2007267368A/ja
Priority to US11/681,710 priority patent/US7945059B2/en
Publication of JP2007267368A publication Critical patent/JP2007267368A/ja
Publication of JP2007267368A5 publication Critical patent/JP2007267368A5/ja
Withdrawn legal-status Critical Current

Links

Images

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP2007026549A 2006-03-03 2007-02-06 スピーカ装置、音響再生方法、及びスピーカ制御装置 Withdrawn JP2007267368A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007026549A JP2007267368A (ja) 2006-03-03 2007-02-06 スピーカ装置、音響再生方法、及びスピーカ制御装置
US11/681,710 US7945059B2 (en) 2006-03-03 2007-03-02 Speaker device, sound reproducing method, and speaker control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006057324 2006-03-03
JP2007026549A JP2007267368A (ja) 2006-03-03 2007-02-06 スピーカ装置、音響再生方法、及びスピーカ制御装置

Publications (2)

Publication Number Publication Date
JP2007267368A true JP2007267368A (ja) 2007-10-11
JP2007267368A5 JP2007267368A5 (enExample) 2010-03-25

Family

ID=38533459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007026549A Withdrawn JP2007267368A (ja) 2006-03-03 2007-02-06 スピーカ装置、音響再生方法、及びスピーカ制御装置

Country Status (2)

Country Link
US (1) US7945059B2 (enExample)
JP (1) JP2007267368A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101605988B1 (ko) * 2015-01-29 2016-03-23 주식회사 제이디솔루션 초음파 스피커를 이용한 정보제공시스템

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8116508B2 (en) * 2008-09-26 2012-02-14 Nokia Corporation Dual-mode loudspeaker
US9497540B2 (en) * 2009-12-23 2016-11-15 Conexant Systems, Inc. System and method for reducing rub and buzz distortion
GB2491130B (en) * 2011-05-23 2013-07-10 Sontia Logic Ltd Reducing distortion
CA2845204C (en) 2011-08-16 2016-08-09 Empire Technology Development Llc Techniques for generating audio signals
US10123126B2 (en) 2014-02-08 2018-11-06 Empire Technology Development Llc MEMS-based audio speaker system using single sideband modulation
US10271146B2 (en) 2014-02-08 2019-04-23 Empire Technology Development Llc MEMS dual comb drive
WO2015119627A2 (en) 2014-02-08 2015-08-13 Empire Technology Development Llc Mems-based audio speaker system with modulation element
US10284961B2 (en) 2014-02-08 2019-05-07 Empire Technology Development Llc MEMS-based structure for pico speaker
US9621973B2 (en) * 2014-09-22 2017-04-11 Samsung Electronics Company, Ltd Wearable audio device
US9936324B2 (en) * 2016-04-04 2018-04-03 Pixie Dust Technologies, Inc. System and method for generating spatial sound using ultrasound
GB2560389A (en) 2016-12-06 2018-09-12 Cirrus Logic Int Semiconductor Ltd Methods and apparatuses for driving audio and ultrasonics from the same transducer
EP3652731A1 (en) * 2017-07-13 2020-05-20 Sony Corporation Apparatus, system, method and computer program
EP3579573B1 (en) * 2018-06-05 2023-12-20 Infineon Technologies AG Mems microphone
US20220132240A1 (en) * 2020-10-23 2022-04-28 Alien Sandbox, LLC Nonlinear Mixing of Sound Beams for Focal Point Determination

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06268615A (ja) * 1993-03-11 1994-09-22 Sanyo Electric Co Ltd Ｆｍ多重放送送信装置及びｆｍ多重放送受信装置
US6584205B1 (en) * 1999-08-26 2003-06-24 American Technology Corporation Modulator processing for a parametric speaker system
JP2003047085A (ja) 2001-07-30 2003-02-14 Mitsubishi Electric Engineering Co Ltd 超指向性スピーカー
SG115665A1 (en) * 2004-04-06 2005-10-28 Sony Corp Method and apparatus to generate an audio beam with high quality
JP4802998B2 (ja) * 2005-12-19 2011-10-26 セイコーエプソン株式会社 静電型超音波トランスデューサの駆動制御方法、静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101605988B1 (ko) * 2015-01-29 2016-03-23 주식회사 제이디솔루션 초음파 스피커를 이용한 정보제공시스템
WO2016122237A1 (ko) * 2015-01-29 2016-08-04 주식회사 제이디솔루션 초음파 스피커를 이용한 정보제공시스템

Also Published As

Publication number Publication date
US7945059B2 (en) 2011-05-17
US20070223724A1 (en) 2007-09-27

Similar Documents

Publication Publication Date Title
JP2007267368A (ja) スピーカ装置、音響再生方法、及びスピーカ制御装置
US7873174B2 (en) Method of controlling output of ultrasonic speaker, ultrasonic speaker system, and display device
US8199931B1 (en) Parametric loudspeaker with improved phase characteristics
JP4867565B2 (ja) 容量性負荷の駆動回路、および超音波スピーカ
JP4793174B2 (ja) 静電型トランスデューサ、回路定数の設定方法
JP4844411B2 (ja) 静電型超音波トランスデューサ、静電型超音波トランスデューサの製造方法、超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
US7668323B2 (en) Electrostatic ultrasonic transducer and ultrasonic speaker
JP2008244964A (ja) 静電型超音波トランスデューサ、静電型トランスデューサ、超音波スピーカ、スピーカ装置、静電型超音波トランスデューサによる音声信号再生方法、指向性音響システム、および表示装置
JPH11164384A (ja) 超指向性スピーカ及びスピーカの駆動方法
KR20020043617A (ko) 음향 보정 장치
WO1999035881A1 (en) Loudspeaker device and method for driving the same, and audio signal transmitter/receiver
JP4983171B2 (ja) 静電型トランスデューサ、容量性負荷の駆動回路、回路定数の設定方法、超音波スピーカ、および指向性音響システム
CN102165791A (zh) 双模扬声器
JP5068369B2 (ja) 多重音像を有する音響装置（ＡｐｐａｒａｔｕｓｆｏｒｓｏｕｎｄＨａｖｉｎｇＭｕｌｔｉｐｌｅＳｔｅｒｅｏＩｍａｇｉｎｇ）
JP2007282191A (ja) 案内装置及びその制御方法
KR102022962B1 (ko) 하이브리드 초지향성 스피커
JP4289343B2 (ja) スピーカ駆動装置
JP2007067514A (ja) スピーカー装置
JP2008118248A (ja) Ｄ級アンプの駆動方法、ｄ級アンプの駆動回路、静電型トランスデューサ、超音波スピーカ、表示装置、および指向性音響システム
JP3790528B2 (ja) スピーカシステム
JPH08149592A (ja) パラメトリックスピーカ制御装置
JP2006025109A (ja) ハイブリッド型超音波トランスデューサ、超音波スピーカ、およびハイブリッド型超音波トランスデューサの制御方法
JP2008199342A (ja) 静電型トランスデューサ、静電型超音波トランスデューサ、超音波スピーカ、スピーカ装置、静電型トランスデューサによる音声信号再生方法、指向性音響システム、および表示装置
JP2008118247A (ja) 静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JP2007295634A (ja) 音出力システム

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100203

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100203

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20100204

A761 Written withdrawal of application

Free format text: JAPANESE INTERMEDIATE CODE: A761

Effective date: 20110314

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20110315