BR0312974A - Compensação de áudio com base na impedância elétrica em dispositivos de áudio e métodos para realização da mesma - Google Patents
Compensação de áudio com base na impedância elétrica em dispositivos de áudio e métodos para realização da mesmaInfo
- Publication number
- BR0312974A BR0312974A BR0312974-8A BR0312974A BR0312974A BR 0312974 A BR0312974 A BR 0312974A BR 0312974 A BR0312974 A BR 0312974A BR 0312974 A BR0312974 A BR 0312974A
- Authority
- BR
- Brazil
- Prior art keywords
- audio
- electrical impedance
- trim
- detection circuit
- sound transducer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/18—Automatic control in untuned amplifiers
- H03G5/22—Automatic control in untuned amplifiers having semiconductor devices
-
- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- 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
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Abstract
"COMPENSAçãO DE áUDIO COM BASE NA IMPEDâNCIA ELéTRICA EM DISPOSITIVOS DE áUDIO E MéTODOS PARA REALIZAçãO DA MESMA". é descrito um dispositivo de áudio, por exemplo, um aparelho de mão de comunicação sem fio, incluindo um transdutor de som (410) acoplado à saída do sinal de áudio compensado de um compensador de áudio (450), o circuito de detecção de erro de casamento (430) tendo uma primeira entrada acoplada à saída do sinal de áudio compensado do compensador de áudio (450), o circuito de detecção de erro de casamento (430) tendo uma segunda entrada acoplada ao transdutor de som (410), o circuito de detecção de erro de casamento tendo uma saída que corresponde a um erro de casamento entre uma impedância elétrica de referência do transdutor de som e uma impedância elétrica efetiva do transdutor de som, um estimador de compensação (440) tendo uma entrada acoplada à saída do circuito de detecção de erro de casamento, o estimador de compensação tendo uma saída de compensação de áudio acoplada a uma entrada de compensação do compensador de áudio.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/206,704 US20040017921A1 (en) | 2002-07-26 | 2002-07-26 | Electrical impedance based audio compensation in audio devices and methods therefor |
PCT/US2003/023008 WO2004012476A2 (en) | 2002-07-26 | 2003-07-22 | Electrical impedance based audio compensation in audio devices and methods therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0312974A true BR0312974A (pt) | 2005-06-14 |
Family
ID=30770348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0312974-8A BR0312974A (pt) | 2002-07-26 | 2003-07-22 | Compensação de áudio com base na impedância elétrica em dispositivos de áudio e métodos para realização da mesma |
Country Status (9)
Country | Link |
---|---|
US (1) | US20040017921A1 (pt) |
EP (1) | EP1552608A4 (pt) |
KR (1) | KR20050026967A (pt) |
CN (1) | CN1682441A (pt) |
AU (1) | AU2003256688A1 (pt) |
BR (1) | BR0312974A (pt) |
RU (1) | RU2317656C2 (pt) |
TW (1) | TWI314392B (pt) |
WO (1) | WO2004012476A2 (pt) |
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US7570769B2 (en) * | 2004-04-23 | 2009-08-04 | Motorola, Inc. | Air leak self-diagnosis for a communication device |
KR100678020B1 (ko) * | 2005-08-11 | 2007-02-02 | 삼성전자주식회사 | 개선된 음원 재생을 위한 장치 및 방법 |
US20070223736A1 (en) * | 2006-03-24 | 2007-09-27 | Stenmark Fredrik M | Adaptive speaker equalization |
EP1887687A1 (en) * | 2006-08-01 | 2008-02-13 | Vestel Elektronik Sanayi ve Ticaret A.S. | Compensating device and method for acoustical systems |
KR100835955B1 (ko) * | 2006-12-04 | 2008-06-09 | 삼성전자주식회사 | 스피커의 출력 음량을 조절하는 제어장치 및 방법 |
US8224009B2 (en) * | 2007-03-02 | 2012-07-17 | Bose Corporation | Audio system with synthesized positive impedance |
US7906950B2 (en) * | 2008-11-13 | 2011-03-15 | International Business Machines Corporation | Tuning a switching power supply |
EP2453672B1 (en) * | 2009-02-27 | 2013-05-01 | Research In Motion Limited | Method and system for controlling a maximum signal level output to headphones coupled to a wireless device |
US8401200B2 (en) | 2009-11-19 | 2013-03-19 | Apple Inc. | Electronic device and headset with speaker seal evaluation capabilities |
US9253584B2 (en) * | 2009-12-31 | 2016-02-02 | Nokia Technologies Oy | Monitoring and correcting apparatus for mounted transducers and method thereof |
US8908877B2 (en) * | 2010-12-03 | 2014-12-09 | Cirrus Logic, Inc. | Ear-coupling detection and adjustment of adaptive response in noise-canceling in personal audio devices |
KR101909432B1 (ko) | 2010-12-03 | 2018-10-18 | 씨러스 로직 인코포레이티드 | 개인용 오디오 디바이스에서 적응형 잡음 제거기의 실수 제어 |
JP5711041B2 (ja) * | 2011-05-09 | 2015-04-30 | 新日本無線株式会社 | 容量性スピーカ駆動回路 |
US9318094B2 (en) | 2011-06-03 | 2016-04-19 | Cirrus Logic, Inc. | Adaptive noise canceling architecture for a personal audio device |
US8958571B2 (en) | 2011-06-03 | 2015-02-17 | Cirrus Logic, Inc. | MIC covering detection in personal audio devices |
US9824677B2 (en) | 2011-06-03 | 2017-11-21 | Cirrus Logic, Inc. | Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC) |
CN102325283B (zh) * | 2011-07-27 | 2018-10-16 | 中兴通讯股份有限公司 | 耳机、用户设备及音频数据输出方法 |
US8830136B2 (en) * | 2011-09-09 | 2014-09-09 | Blackberry Limited | Mobile wireless communications device including acoustic coupling based impedance adjustment and related methods |
CN103828391B (zh) * | 2011-09-22 | 2016-07-13 | 松下知识产权经营株式会社 | 音响再现装置 |
US9318090B2 (en) | 2012-05-10 | 2016-04-19 | Cirrus Logic, Inc. | Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system |
US9076427B2 (en) * | 2012-05-10 | 2015-07-07 | Cirrus Logic, Inc. | Error-signal content controlled adaptation of secondary and leakage path models in noise-canceling personal audio devices |
US9123321B2 (en) | 2012-05-10 | 2015-09-01 | Cirrus Logic, Inc. | Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system |
US9532139B1 (en) | 2012-09-14 | 2016-12-27 | Cirrus Logic, Inc. | Dual-microphone frequency amplitude response self-calibration |
DE102012216968A1 (de) * | 2012-09-21 | 2014-04-17 | Robert Bosch Gmbh | Verfahren zur Auswertungsanpassung und Funktionsüberprüfung eines Ultraschallsensors sowie ein entsprechender Ultraschallsensor |
US9148719B2 (en) | 2013-03-06 | 2015-09-29 | Htc Corporation | Portable electronic device |
US9414150B2 (en) | 2013-03-14 | 2016-08-09 | Cirrus Logic, Inc. | Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device |
US9258659B2 (en) * | 2013-07-23 | 2016-02-09 | Analog Devices Global | Method of detecting enclosure leakage of enclosure mounted loudspeakers |
US9648432B2 (en) * | 2013-07-23 | 2017-05-09 | Analog Devices Global | Method of controlling sound reproduction of enclosure mounted loudspeakers |
US9479868B2 (en) * | 2013-09-16 | 2016-10-25 | Cirrus Logic, Inc. | Systems and methods for detection of load impedance of a transducer device coupled to an audio device |
KR101388575B1 (ko) * | 2013-09-23 | 2014-04-23 | 마이크로닉 시스템주식회사 | 부하 분산 장치 및 방법 |
US9620101B1 (en) | 2013-10-08 | 2017-04-11 | Cirrus Logic, Inc. | Systems and methods for maintaining playback fidelity in an audio system with adaptive noise cancellation |
CN104602175A (zh) * | 2013-10-30 | 2015-05-06 | 索尼公司 | 阻抗测量的肯内利圆插值法 |
US10219071B2 (en) | 2013-12-10 | 2019-02-26 | Cirrus Logic, Inc. | Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation |
US9794669B2 (en) * | 2014-02-11 | 2017-10-17 | Mediatek Inc. | Devices and methods for headphone speaker impedance detection |
DE102014208256B4 (de) | 2014-04-30 | 2016-03-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Array aus elektroakustischen Aktuoren und Verfahren zum Herstellen eines Arrays |
US9478212B1 (en) | 2014-09-03 | 2016-10-25 | Cirrus Logic, Inc. | Systems and methods for use of adaptive secondary path estimate to control equalization in an audio device |
EP3332558B1 (en) * | 2015-08-07 | 2021-12-01 | Cirrus Logic International Semiconductor, Ltd. | Event detection for playback management in an audio device |
JP6964581B2 (ja) | 2015-08-20 | 2021-11-10 | シーラス ロジック インターナショナル セミコンダクター リミテッド | 固定応答フィルタによって部分的に提供されるフィードバック応答を有するフィードバック適応雑音消去(anc)コントローラおよび方法 |
CN105530567A (zh) * | 2015-12-23 | 2016-04-27 | 联想(北京)有限公司 | 一种输出控制方法、装置及电子设备 |
US10013966B2 (en) | 2016-03-15 | 2018-07-03 | Cirrus Logic, Inc. | Systems and methods for adaptive active noise cancellation for multiple-driver personal audio device |
CN108781340B (zh) * | 2016-03-25 | 2020-10-02 | 雅马哈株式会社 | 扬声器动作确认装置及方法 |
DE102016120545A1 (de) * | 2016-10-27 | 2018-05-03 | USound GmbH | Verstärkereinheit zum Betreiben eines piezoelektrischen Schallwandlers und/oder eines dynamischen Schallwandlers sowie eine Schallerzeugungseinheit |
US10694289B2 (en) * | 2017-05-02 | 2020-06-23 | Texas Instruments Incorporated | Loudspeaker enhancement |
US11115752B2 (en) * | 2017-10-11 | 2021-09-07 | Institut Für Rundfunktechnik | Sound transducer |
GB2579677B (en) * | 2018-12-11 | 2021-06-23 | Cirrus Logic Int Semiconductor Ltd | Load detection |
JP2022546823A (ja) * | 2019-09-03 | 2022-11-09 | エリプティック ラボラトリーズ エーエス | 近接検出 |
CN112688587B (zh) * | 2020-12-28 | 2022-02-15 | 珠海创芯科技有限公司 | 一种阻抗源逆变器的鲁棒预测控制方法 |
RU2759317C1 (ru) * | 2021-02-08 | 2021-11-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный институт кино и телевидения" (СПбГИКиТ) | Универсальный электрический эквивалент громкоговорителя |
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DE3836745A1 (de) * | 1988-10-28 | 1990-05-03 | Standard Elektrik Lorenz Ag | Verfahren und vorrichtung zur linearisierung des frequenzganges eines lautsprechersystems |
US4973917A (en) * | 1989-09-27 | 1990-11-27 | Threepenney Electronics Corporation | Output amplifier |
US5280543A (en) * | 1989-12-26 | 1994-01-18 | Yamaha Corporation | Acoustic apparatus and driving apparatus constituting the same |
DE4334040C2 (de) * | 1993-10-06 | 1996-07-11 | Klippel Wolfgang | Schaltungsanordnung zur selbständigen Korrektur des Übertragungsverhaltens von elektrodynamischen Schallsendern ohne zusätzlichen mechanischen oder akustischen Sensor |
GB2292854B (en) * | 1994-08-12 | 1999-08-25 | Motorola Ltd | Electronic audio device and method of operation |
US5542001A (en) * | 1994-12-06 | 1996-07-30 | Reiffin; Martin | Smart amplifier for loudspeaker motional feedback derived from linearization of a nonlinear motion responsive signal |
US5761316A (en) * | 1996-02-27 | 1998-06-02 | Pritchard; Eric K. | Variable and reactive audio power amplifier |
US6058315A (en) * | 1996-03-13 | 2000-05-02 | Motorola, Inc. | Speaker assembly for a radiotelephone |
JP3037200B2 (ja) * | 1997-05-23 | 2000-04-24 | 埼玉日本電気株式会社 | 携帯電話装置及びその着信応答制御方法 |
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US6829131B1 (en) * | 1999-09-13 | 2004-12-07 | Carnegie Mellon University | MEMS digital-to-acoustic transducer with error cancellation |
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US6512468B1 (en) * | 2001-08-03 | 2003-01-28 | Agere Systems Inc. | System and method for increasing sample rate converter filter coefficient derivation speed |
-
2002
- 2002-07-26 US US10/206,704 patent/US20040017921A1/en not_active Abandoned
-
2003
- 2003-07-22 AU AU2003256688A patent/AU2003256688A1/en not_active Abandoned
- 2003-07-22 CN CNA038179148A patent/CN1682441A/zh active Pending
- 2003-07-22 RU RU2005105315/28A patent/RU2317656C2/ru not_active IP Right Cessation
- 2003-07-22 WO PCT/US2003/023008 patent/WO2004012476A2/en not_active Application Discontinuation
- 2003-07-22 KR KR1020057001389A patent/KR20050026967A/ko not_active Application Discontinuation
- 2003-07-22 EP EP03771740A patent/EP1552608A4/en not_active Withdrawn
- 2003-07-22 BR BR0312974-8A patent/BR0312974A/pt not_active IP Right Cessation
- 2003-07-25 TW TW092120434A patent/TWI314392B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU2003256688A1 (en) | 2004-02-16 |
CN1682441A (zh) | 2005-10-12 |
US20040017921A1 (en) | 2004-01-29 |
EP1552608A4 (en) | 2007-06-06 |
KR20050026967A (ko) | 2005-03-16 |
TW200415845A (en) | 2004-08-16 |
TWI314392B (en) | 2009-09-01 |
RU2317656C2 (ru) | 2008-02-20 |
WO2004012476A2 (en) | 2004-02-05 |
RU2005105315A (ru) | 2005-07-20 |
EP1552608A2 (en) | 2005-07-13 |
WO2004012476A3 (en) | 2004-05-21 |
AU2003256688A8 (en) | 2004-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application fees: application dismissed [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 8A ANUIDADE. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2157 DE 08/05/2012. |