DK0818122T3 - Forbedringer af eller vedrørende højttalere - Google Patents
Forbedringer af eller vedrørende højttalereInfo
- Publication number
- DK0818122T3 DK0818122T3 DK96907605T DK96907605T DK0818122T3 DK 0818122 T3 DK0818122 T3 DK 0818122T3 DK 96907605 T DK96907605 T DK 96907605T DK 96907605 T DK96907605 T DK 96907605T DK 0818122 T3 DK0818122 T3 DK 0818122T3
- Authority
- DK
- Denmark
- Prior art keywords
- bit
- input
- digital
- signal
- receive
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only using transducers reproducing the same frequency band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
-
- 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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
- H04R2203/12—Beamforming aspects for stereophonic sound reproduction with loudspeaker arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9506725.2A GB9506725D0 (en) | 1995-03-31 | 1995-03-31 | Improvements in or relating to loudspeakers |
PCT/GB1996/000736 WO1996031086A1 (en) | 1995-03-31 | 1996-03-27 | Improvements in or relating to loudspeakers |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0818122T3 true DK0818122T3 (da) | 2002-03-18 |
Family
ID=10772301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK96907605T DK0818122T3 (da) | 1995-03-31 | 1996-03-27 | Forbedringer af eller vedrørende højttalere |
Country Status (10)
Country | Link |
---|---|
US (3) | US6373955B1 (de) |
EP (2) | EP1122973B1 (de) |
JP (1) | JP3492698B2 (de) |
CN (2) | CN1147207C (de) |
AT (2) | ATE211345T1 (de) |
AU (1) | AU5117096A (de) |
DE (2) | DE69635286D1 (de) |
DK (1) | DK0818122T3 (de) |
GB (1) | GB9506725D0 (de) |
WO (1) | WO1996031086A1 (de) |
Families Citing this family (110)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9506725D0 (en) * | 1995-03-31 | 1995-05-24 | Hooley Anthony | Improvements in or relating to loudspeakers |
FR2765765B1 (fr) * | 1997-07-07 | 2002-12-06 | Pierre Piccaluga | Procede et appareil pour formater le signal audio numerique pour l'usage de la reproduction sonore |
FR2790353B1 (fr) * | 1999-02-25 | 2002-11-15 | Olivier Viacava | Enceinte audio-numerique effectuant la conversion numerique vers analogique directement dans l'air |
DE19923170A1 (de) * | 1999-05-21 | 2000-11-23 | Florian M Koenig | Volldigitale Tonsignal-Versorgung von Schallwandlern |
EP1063866B1 (de) * | 1999-05-28 | 2008-11-26 | Texas Instruments Inc. | Digitaler Lautsprecher |
ATE442705T1 (de) | 1999-07-19 | 2009-09-15 | Texas Instruments Inc | Differenzielle monadische kodierung für digitales audiosignal |
US7577260B1 (en) * | 1999-09-29 | 2009-08-18 | Cambridge Mechatronics Limited | Method and apparatus to direct sound |
GB9926489D0 (en) * | 1999-11-10 | 2000-01-12 | New Transducers Ltd | Digital loudspeaker |
GB0009133D0 (en) * | 2000-04-14 | 2000-05-31 | New Transducers Ltd | Acoustic device and method for driving it |
DE10026474B4 (de) * | 2000-05-27 | 2005-06-09 | Sennheiser Electronic Gmbh & Co. Kg | Wandler mit halbleitender Membran |
US6895378B1 (en) * | 2000-09-22 | 2005-05-17 | Meyer Sound Laboratories, Incorporated | System and method for producing acoustic response predictions via a communications network |
US20020055827A1 (en) * | 2000-10-06 | 2002-05-09 | Chris Kyriakakis | Modeling of head related transfer functions for immersive audio using a state-space approach |
EP1206160A1 (de) * | 2000-11-09 | 2002-05-15 | Texas Instruments Incorporated | Digitaler Lautsprecher |
US7284256B2 (en) * | 2000-12-04 | 2007-10-16 | Sony Corporation | Method and system to maintain relative statistics for creating automatically a list of favorites |
US7058463B1 (en) * | 2000-12-29 | 2006-06-06 | Nokia Corporation | Method and apparatus for implementing a class D driver and speaker system |
GB0102865D0 (en) | 2001-02-06 | 2001-03-21 | Secr Defence Brit | Panel form loudspeaker |
US20020131608A1 (en) * | 2001-03-01 | 2002-09-19 | William Lobb | Method and system for providing digitally focused sound |
CN101674512A (zh) * | 2001-03-27 | 2010-03-17 | 1...有限公司 | 产生声场的方法和装置 |
GB0200291D0 (en) * | 2002-01-08 | 2002-02-20 | 1 Ltd | Digital loudspeaker system |
SE0101720D0 (sv) * | 2001-05-16 | 2001-05-16 | Bang & Olufsen Powerhouse As | Apparatus for electric to acoustic conversion |
GB0124352D0 (en) * | 2001-10-11 | 2001-11-28 | 1 Ltd | Signal processing device for acoustic transducer array |
US7130430B2 (en) * | 2001-12-18 | 2006-10-31 | Milsap Jeffrey P | Phased array sound system |
JP3671910B2 (ja) * | 2002-01-16 | 2005-07-13 | 日産自動車株式会社 | 回転電機の接続方法 |
GB0203895D0 (en) * | 2002-02-19 | 2002-04-03 | 1 Ltd | Compact surround-sound system |
US7184480B1 (en) * | 2002-09-25 | 2007-02-27 | O2Micro International Limited | Digital PWM generator |
GB0301093D0 (en) * | 2003-01-17 | 2003-02-19 | 1 Ltd | Set-up method for array-type sound systems |
US20040166817A1 (en) * | 2003-01-20 | 2004-08-26 | Mehran Mokhtari | System, method and apparatus for burst communications |
US7216248B2 (en) * | 2003-03-20 | 2007-05-08 | Sun Microsystems, Inc. | On-chip clock generator allowing rapid changes of on-chip clock frequency |
US7929718B1 (en) * | 2003-05-12 | 2011-04-19 | D2Audio Corporation | Systems and methods for switching and mixing signals in a multi-channel amplifier |
US7826622B2 (en) * | 2003-05-27 | 2010-11-02 | Harman International Industries, Incorporated | Constant-beamwidth loudspeaker array |
US7684574B2 (en) * | 2003-05-27 | 2010-03-23 | Harman International Industries, Incorporated | Reflective loudspeaker array |
JP4007255B2 (ja) | 2003-06-02 | 2007-11-14 | ヤマハ株式会社 | アレースピーカーシステム |
GB0321676D0 (en) * | 2003-09-16 | 2003-10-15 | 1 Ltd | Digital loudspeaker |
US8170233B2 (en) * | 2004-02-02 | 2012-05-01 | Harman International Industries, Incorporated | Loudspeaker array system |
US6822588B1 (en) * | 2004-04-15 | 2004-11-23 | Agilent Technologies, Inc. | Pulse width modulation systems and methods |
GB0415625D0 (en) * | 2004-07-13 | 2004-08-18 | 1 Ltd | Miniature surround-sound loudspeaker |
GB0415626D0 (en) * | 2004-07-13 | 2004-08-18 | 1 Ltd | Directional microphone |
WO2006016156A1 (en) * | 2004-08-10 | 2006-02-16 | 1...Limited | Non-planar transducer arrays |
US7492233B2 (en) * | 2005-04-29 | 2009-02-17 | Honeywell International Inc. | Precision modulated controller output |
GB0514361D0 (en) * | 2005-07-12 | 2005-08-17 | 1 Ltd | Compact surround sound effects system |
JP4981058B2 (ja) | 2005-10-26 | 2012-07-18 | トムソン ライセンシング | 衛星ゲートウェイ障害を補償するシステム及び方法 |
US7676049B2 (en) * | 2006-05-12 | 2010-03-09 | Cirrus Logic, Inc. | Reconfigurable audio-video surround sound receiver (AVR) and method |
US7606377B2 (en) * | 2006-05-12 | 2009-10-20 | Cirrus Logic, Inc. | Method and system for surround sound beam-forming using vertically displaced drivers |
US7606380B2 (en) * | 2006-04-28 | 2009-10-20 | Cirrus Logic, Inc. | Method and system for sound beam-forming using internal device speakers in conjunction with external speakers |
US7804972B2 (en) * | 2006-05-12 | 2010-09-28 | Cirrus Logic, Inc. | Method and apparatus for calibrating a sound beam-forming system |
WO2007135928A1 (ja) | 2006-05-21 | 2007-11-29 | Trigence Semiconductor, Inc. | デジタルアナログ変換装置 |
JP5180191B2 (ja) * | 2006-05-22 | 2013-04-10 | オーディオ ピクセルズ エルティーディー. | 直接デジタルスピーカ用音量調節システム及び方法 |
WO2007135680A1 (en) * | 2006-05-22 | 2007-11-29 | Audio Pixels Ltd. | Apparatus and methods for generating pressure waves |
US8457338B2 (en) | 2006-05-22 | 2013-06-04 | Audio Pixels Ltd. | Apparatus and methods for generating pressure waves |
US7570037B2 (en) * | 2006-11-17 | 2009-08-04 | Virginia Tech Intellectual Properties, Inc. | Hybrid control methods for digital pulse width modulator (DPWM) |
KR101411183B1 (ko) * | 2007-05-21 | 2014-06-23 | 오디오 픽셀즈 리미티드 | 원하는 지향성 패턴을 가지는 다이렉트 디지털 스피커 장치 |
DE102007029959A1 (de) * | 2007-06-28 | 2009-01-02 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Erfassung einer Umgebung |
KR101292206B1 (ko) * | 2007-10-01 | 2013-08-01 | 삼성전자주식회사 | 어레이 스피커 시스템 및 그 구현 방법 |
CN101953174B (zh) | 2007-11-21 | 2014-12-10 | 奥迪欧彼塞尔斯有限公司 | 数字扬声器装置 |
JP5552614B2 (ja) | 2008-06-16 | 2014-07-16 | 株式会社 Trigence Semiconductor | デジタルスピーカー駆動装置,デジタルスピーカー装置,アクチュエータ,平面ディスプレイ装置及び携帯電子機器 |
DE102008038340B4 (de) * | 2008-08-19 | 2010-04-22 | Austriamicrosystems Ag | Schaltungsanordnung zur Ansteuerung einer Lichtquelle und Verfahren zum Erzeugen eines Ansteuersignals für dieselbe |
EP2326108B1 (de) | 2009-11-02 | 2015-06-03 | Harman Becker Automotive Systems GmbH | Phasenentzerrung für Audiosystem |
EP2391014B1 (de) | 2009-12-09 | 2017-12-27 | Trigence Semiconductor, Inc. | Auswahlvorrichtung |
KR20120101186A (ko) | 2009-12-16 | 2012-09-13 | 트라이젠스 세미컨덕터 가부시키가이샤 | 음향 시스템 |
DK2768241T3 (da) | 2010-03-11 | 2022-05-23 | Audio Pixels Ltd | Elektrostatiske, parallelle pladeaktuatorer, hvis bevægelige elementer kun drives af elektrostatisk kraft, og anvendelige fremgangsmåder i forbindelse hermed |
CN102316400A (zh) * | 2010-07-02 | 2012-01-11 | 英业达股份有限公司 | 喇叭与应用该喇叭的可携式电子装置 |
US8693708B2 (en) * | 2010-08-24 | 2014-04-08 | Star Headlight & Lantern Co., Inc. | System for operating a device for producing an audible alarm |
CN101986721B (zh) | 2010-10-22 | 2014-07-09 | 苏州上声电子有限公司 | 全数字式扬声器装置 |
CN103493511B (zh) | 2010-11-26 | 2016-10-26 | 音频像素有限公司 | 用于致动器阵列的个别寻址和噪声降低的装置和方法 |
DE102011003168A1 (de) * | 2011-01-26 | 2012-07-26 | Robert Bosch Gmbh | Lautsprechersystem |
US20120244969A1 (en) | 2011-03-25 | 2012-09-27 | May Patents Ltd. | System and Method for a Motion Sensing Device |
TWI461884B (zh) * | 2011-04-06 | 2014-11-21 | Himax Imagimg Inc | 用來產生輸出時脈訊號的時脈產生電路及相關方法 |
GB2491130B (en) * | 2011-05-23 | 2013-07-10 | Sontia Logic Ltd | Reducing distortion |
US8897465B2 (en) | 2011-06-01 | 2014-11-25 | Robert Bosch Gmbh | Class D micro-speaker |
US20130039431A1 (en) * | 2011-08-12 | 2013-02-14 | Electronics And Telecommunications Research Institute | Power-scalable encoding/decoding apparatus and method |
JP5838927B2 (ja) * | 2011-10-14 | 2016-01-06 | Tdk株式会社 | 積層セラミック電子部品 |
CN102404672B (zh) | 2011-10-27 | 2013-12-18 | 苏州上声电子有限公司 | 数字化扬声器阵列系统的通道均衡与波束控制方法和装置 |
CN103152673B (zh) * | 2011-12-07 | 2015-07-08 | 中国科学院声学研究所 | 基于四元码动态失配整形的数字扬声器驱动方法和装置 |
US9240776B2 (en) * | 2012-01-26 | 2016-01-19 | Rf Micro Devices, Inc. | Analog-digital pulse width modulator (ADPWM) |
CN103248981B (zh) * | 2012-02-06 | 2016-06-01 | 王永明 | 一种扬声器 |
CN102684701B (zh) | 2012-04-27 | 2014-07-09 | 苏州上声电子有限公司 | 基于编码转换的数字扬声器驱动方法和装置 |
EP2856769B1 (de) | 2012-05-25 | 2018-07-04 | Audio Pixels Ltd. | System, verfahren und computerprogrammprodukt zur steuerung einer gruppe von aktuatorarrays zur erzeugung eines physikalischen effekts |
DK2856770T3 (en) | 2012-05-25 | 2018-10-22 | Audio Pixels Ltd | SYSTEM, PROCEDURE AND COMPUTER PROGRAM PRODUCT TO CONTROL A SET OF ACTUATOR ELEMENTS |
WO2014134153A1 (en) * | 2013-02-26 | 2014-09-04 | The University Of Akron | Direct-drive digital audio amplifier for electrostatic loudspeakers |
US8934654B2 (en) | 2013-03-13 | 2015-01-13 | Aliphcom | Non-occluded personal audio and communication system |
WO2014210530A1 (en) * | 2013-06-28 | 2014-12-31 | Kopin Corporation | Digital voice processing method and system for headset computer |
US9350336B2 (en) * | 2014-02-05 | 2016-05-24 | Texas Instruments Incorporated | Timing compensation using the system clock |
CN104022758B (zh) * | 2014-05-29 | 2016-09-28 | 中国人民解放军国防科学技术大学 | 一种带清零置位端口的功耗均衡触发器 |
KR102197230B1 (ko) * | 2014-10-06 | 2020-12-31 | 한국전자통신연구원 | 음향 특성을 예측하는 오디오 시스템 및 방법 |
JP6760960B2 (ja) | 2015-04-15 | 2020-09-23 | オーディオ ピクセルズ エルティーディー.Audio Pixels Ltd. | 空間内で少なくとも物体の位置を検出する方法およびシステム |
KR102340202B1 (ko) | 2015-06-25 | 2021-12-17 | 한국전자통신연구원 | 실내의 반사 특성을 추출하는 오디오 시스템 및 방법 |
US9621040B2 (en) * | 2015-08-20 | 2017-04-11 | Sanken Electric Co., Ltd. | PWM signal generator and switching power supply device having same |
US10030961B2 (en) | 2015-11-27 | 2018-07-24 | General Electric Company | Gap measuring device |
US9857285B2 (en) | 2015-12-17 | 2018-01-02 | Venturedyne, Ltd. | Environmental sensor and method of operating the same |
US10557472B2 (en) | 2015-12-17 | 2020-02-11 | Venturedyne, Ltd. | Environmental sensor and method of operating the same |
US9983596B2 (en) | 2015-12-17 | 2018-05-29 | Venturedyne, Ltd. | Environmental sensor and method of operating the same |
EP3390838B1 (de) * | 2015-12-17 | 2021-07-14 | Venturedyne, Ltd | Umgebungssensor |
US9813803B1 (en) * | 2016-05-04 | 2017-11-07 | Wu-Hsu Lin | Electrical speaker assembly |
US10103928B2 (en) * | 2016-05-23 | 2018-10-16 | National Instruments Corporation | Nyquist and square root nyquist filters for pulse shaping in wireless communications |
US10014869B1 (en) * | 2017-03-08 | 2018-07-03 | Qualcomm Incorporated | Fractional clock generator with ramp control including fixed time interval and coarse/fine frequency change steps |
CN110402585B (zh) * | 2017-03-10 | 2021-12-24 | 三星电子株式会社 | 室内低频声功率优化方法和装置 |
US20180315453A1 (en) * | 2017-04-28 | 2018-11-01 | Tymphany Worldwide Enterprises Limited | Audio integrated circuit |
DE102017221738A1 (de) * | 2017-12-03 | 2019-06-06 | Audi Ag | Verfahren zum Einstellen einer Leistungselektronik |
CN107948808A (zh) * | 2018-01-12 | 2018-04-20 | 上海联影医疗科技有限公司 | 应用于磁共振系统的耳机和磁共振系统 |
US10951204B2 (en) * | 2018-08-30 | 2021-03-16 | Maxim Integrated Products, Inc. | Digital pulse width modulation driver system |
US10484784B1 (en) * | 2018-10-19 | 2019-11-19 | xMEMS Labs, Inc. | Sound producing apparatus |
US10681488B1 (en) | 2019-03-03 | 2020-06-09 | xMEMS Labs, Inc. | Sound producing apparatus and sound producing system |
US10623882B1 (en) * | 2019-04-03 | 2020-04-14 | xMEMS Labs, Inc. | Sounding system and sounding method |
US11522448B2 (en) | 2019-05-29 | 2022-12-06 | Alpha And Omega Semiconductor (Cayman) Limited | Autonomous current sharing for power stages |
US10841136B1 (en) | 2019-08-14 | 2020-11-17 | National Instruments Corporation | Asymmetric factorization of generalized raised cosine filters for improved selectivity |
US10840895B1 (en) | 2019-09-06 | 2020-11-17 | International Business Machines Corporation | Fine-grained programmable delay and pulse shaping circuit |
CN111162741B (zh) * | 2019-12-23 | 2023-07-25 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | 一种数字功率放大器及匹配滤波方法 |
CN111782049B (zh) * | 2020-07-02 | 2023-12-01 | 瑞声科技(新加坡)有限公司 | 马达应用频率带宽的评估方法及设备、存储介质 |
CN112601155A (zh) * | 2020-12-10 | 2021-04-02 | 南京汉得利智能科技有限公司 | 一种数字参量阵扬声器的方法和系统 |
CN112865731B (zh) * | 2021-01-13 | 2023-03-24 | 上海艾为电子技术股份有限公司 | D类音频放大器及其混合调制方法、电子设备 |
Family Cites Families (97)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966384C (de) | 1949-05-29 | 1957-08-01 | Siemens Ag | Elektroakustische UEbertragungsanlage mit einer Lautsprecheranordnung in einem Wiedergaberaum |
US3996561A (en) * | 1974-04-23 | 1976-12-07 | Honeywell Information Systems, Inc. | Priority determination apparatus for serially coupled peripheral interfaces in a data processing system |
US3992586A (en) * | 1975-11-13 | 1976-11-16 | Jaffe Acoustics, Inc. | Boardroom sound reinforcement system |
US4042778A (en) * | 1976-04-01 | 1977-08-16 | Clinton Henry H | Collapsible speaker assembly |
GB1603201A (en) | 1977-03-11 | 1981-11-18 | Ard Tech Ass Eng | Sound reproduction systems |
GB1571714A (en) | 1977-04-13 | 1980-07-16 | Kef Electronics Ltd | Loudspeakers |
US4190739A (en) * | 1977-04-27 | 1980-02-26 | Marvin Torffield | High-fidelity stereo sound system |
EP0025118A1 (de) | 1979-08-18 | 1981-03-18 | Riedlinger, Rainer, Dr.-Ing. | Anordnung zur akustischen Wiedergabe von Signalen, die mittels eines rechten und eines linken Stereo-Kanals darstellbar sind |
US4330691A (en) * | 1980-01-31 | 1982-05-18 | The Futures Group, Inc. | Integral ceiling tile-loudspeaker system |
US4305296B2 (en) * | 1980-02-08 | 1989-05-09 | Ultrasonic imaging method and apparatus with electronic beam focusing and scanning | |
US4769848A (en) * | 1980-05-05 | 1988-09-06 | Howard Krausse | Electroacoustic network |
JPS5768991A (en) * | 1980-10-16 | 1982-04-27 | Pioneer Electronic Corp | Speaker system |
DE3142462A1 (de) | 1980-10-28 | 1982-05-27 | Hans-Peter 7000 Stuttgart Pfeiffer | Lautsprecheranordnung |
US4388493A (en) * | 1980-11-28 | 1983-06-14 | Maisel Douglas A | In-band signaling system for FM transmission systems |
US4515997A (en) * | 1982-09-23 | 1985-05-07 | Stinger Jr Walter E | Direct digital loudspeaker |
JPS59179743A (ja) | 1983-03-31 | 1984-10-12 | Showa Electric Wire & Cable Co Ltd | 耐屈曲性に優れた導電用銅合金 |
JPS59186498A (ja) | 1983-04-07 | 1984-10-23 | Nippon Columbia Co Ltd | パラメトリツクアレ−マイクロホン |
JPS60249946A (ja) * | 1984-05-25 | 1985-12-10 | 株式会社東芝 | 超音波組織診断装置 |
JPH0728463B2 (ja) | 1984-08-28 | 1995-03-29 | 松下電器産業株式会社 | パラメトリツクスピ−カ |
JPS61253996A (ja) | 1985-05-02 | 1986-11-11 | Matsushita Electric Ind Co Ltd | パラメトリツクスピ−カ |
JPH0239997B2 (ja) | 1984-12-26 | 1990-09-07 | Takao Shishido | Nijikyokusensoseigu |
DE3533264A1 (de) | 1985-09-18 | 1987-03-26 | Meier F Victoria Pinsel | Vorrichtung zur zahnpflege |
JPH0815288B2 (ja) | 1985-09-30 | 1996-02-14 | 株式会社東芝 | 音声伝送方式 |
JPS62103315A (ja) | 1985-10-30 | 1987-05-13 | Yoshikawa Kogyo Co Ltd | 熱処理炉用ハ−スロ−ル |
JPH0679195B2 (ja) | 1985-12-04 | 1994-10-05 | 大日本印刷株式会社 | 絵柄付きホログラム転写シート |
JPS639300A (ja) | 1986-06-27 | 1988-01-14 | Matsushita Electric Ind Co Ltd | スピ−カシステム |
JPS6314588A (ja) | 1986-07-07 | 1988-01-21 | Toshiba Corp | 電子会議システム |
JP2713402B2 (ja) | 1987-03-23 | 1998-02-16 | 松下電器産業株式会社 | 音場補正装置 |
US4773096A (en) * | 1987-07-20 | 1988-09-20 | Kirn Larry J | Digital switching power amplifier |
GB2209229B (en) | 1987-08-28 | 1991-12-04 | Tasco Ltd | Remote control system |
KR910007182B1 (ko) | 1987-12-21 | 1991-09-19 | 마쯔시다덴기산교 가부시기가이샤 | 스크리인장치 |
FR2628335B1 (fr) | 1988-03-09 | 1991-02-15 | Univ Alsace | Installation pour assurer la regie du son, de la lumiere et/ou d'autres effets physiques d'un spectacle |
NL8800858A (nl) | 1988-04-05 | 1989-11-01 | Philips Nv | Rekenmachinesysteem voorzien van een hoofdbus en een tussen processor en geheugen direkt verbonden extra kommunikatielijn. |
JPH01297716A (ja) | 1988-05-26 | 1989-11-30 | Toyobo Co Ltd | 光学式座標入力素子 |
US5016258A (en) * | 1988-06-10 | 1991-05-14 | Matsushita Electric Industrial Co., Ltd. | Digital modulator and demodulator |
JPH0213097A (ja) | 1988-06-29 | 1990-01-17 | Toa Electric Co Ltd | スピーカ・システム用駆動制御装置 |
FI81471C (fi) * | 1988-11-08 | 1990-10-10 | Timo Tarkkonen | Hoegtalare givande ett tredimensionellt stereoljudintryck. |
US4984273A (en) * | 1988-11-21 | 1991-01-08 | Bose Corporation | Enhancing bass |
US4961432A (en) | 1989-01-10 | 1990-10-09 | Cancer Diagnostics, Inc. | Modular fluid sample preparation assembly |
US5051799A (en) * | 1989-02-17 | 1991-09-24 | Paul Jon D | Digital output transducer |
JP2610991B2 (ja) | 1989-03-13 | 1997-05-14 | ティーオーエー株式会社 | 指向性制御型スピ−カシステム |
JPH034842A (ja) | 1989-05-31 | 1991-01-10 | Aloka Co Ltd | 超音波ドプラ診断装置 |
US4980871A (en) * | 1989-08-22 | 1990-12-25 | Visionary Products, Inc. | Ultrasonic tracking system |
US4972381A (en) * | 1989-09-29 | 1990-11-20 | Westinghouse Electric Corp. | Sonar testing apparatus |
AT394124B (de) | 1989-10-23 | 1992-02-10 | Goerike Rudolf | Fernsehempfangsgeraet mit stereotonwiedergabe |
JP2665007B2 (ja) | 1989-11-16 | 1997-10-22 | 三菱重工業株式会社 | 超指向性スピーカーシステム |
JP3067140B2 (ja) | 1989-11-17 | 2000-07-17 | 日本放送協会 | 立体音響再生方法 |
JPH0736866B2 (ja) * | 1989-11-28 | 1995-04-26 | ヤマハ株式会社 | ホール音場支援装置 |
JPH03252315A (ja) | 1990-02-27 | 1991-11-11 | Osaka Titanium Co Ltd | 高純度酸化チタンの製造方法 |
GB2243040A (en) | 1990-04-09 | 1991-10-16 | William Stuart Hickie Taylor | Radio / sonic transponder location system |
JPH048975A (ja) | 1990-04-24 | 1992-01-13 | Tokimec Inc | コントローラ搭載型電磁制御弁 |
JP2848918B2 (ja) | 1990-05-14 | 1999-01-20 | 住友ベークライト株式会社 | 両面フレキシブルプリント回路基板用樹脂。 |
JPH04214144A (ja) | 1990-07-10 | 1992-08-05 | Mitsui Constr Co Ltd | 排気ダクト用ダンパ |
JPH04127700A (ja) | 1990-09-18 | 1992-04-28 | Matsushita Electric Ind Co Ltd | 音像制御装置 |
US5287531A (en) * | 1990-10-31 | 1994-02-15 | Compaq Computer Corp. | Daisy-chained serial shift register for determining configuration of removable circuit boards in a computer system |
EP0492015A1 (de) | 1990-12-28 | 1992-07-01 | Uraco Impex Asia Pte Ltd. | Navigationsverfahren und -vorrichtung für ein automatisch geführtes Fahrzeug |
JP3052384B2 (ja) | 1991-01-21 | 2000-06-12 | 三菱電機株式会社 | マルチアンプ方式スピーカシステム |
JPH051321A (ja) | 1991-06-24 | 1993-01-08 | Daido Steel Co Ltd | 耐遅れ破壊性と疲労特性のすぐれた高強度ボルトの製造方法 |
JPH0510123A (ja) | 1991-06-28 | 1993-01-19 | Kubota Corp | エンジンの強制空冷装置 |
JPH0541897A (ja) * | 1991-08-07 | 1993-02-19 | Pioneer Electron Corp | スピーカ装置およびその指向性制御方法 |
DE69228476T2 (de) | 1991-08-15 | 1999-12-16 | Hein Werner Corp | Vorrichtung zum bestimmen der form von fahrzeugen |
JP3369200B2 (ja) | 1991-09-30 | 2003-01-20 | 日本放送協会 | 多チャンネルステレオ再生方式 |
US5166905A (en) * | 1991-10-21 | 1992-11-24 | Texaco Inc. | Means and method for dynamically locating positions on a marine seismic streamer cable |
JP3211321B2 (ja) | 1992-01-20 | 2001-09-25 | 松下電器産業株式会社 | 指向性スピーカ装置 |
JP2827652B2 (ja) | 1992-01-22 | 1998-11-25 | 松下電器産業株式会社 | 音響再生システム |
JPH05301465A (ja) | 1992-02-26 | 1993-11-16 | Ricoh Co Ltd | 昇華型熱転写用受像体 |
JPH05344584A (ja) | 1992-06-12 | 1993-12-24 | Matsushita Electric Ind Co Ltd | 音響装置 |
US5313300A (en) * | 1992-08-10 | 1994-05-17 | Commodore Electronics Limited | Binary to unary decoder for a video digital to analog converter |
JPH0662488A (ja) | 1992-08-11 | 1994-03-04 | Pioneer Electron Corp | スピーカ装置 |
US5550726A (en) | 1992-10-08 | 1996-08-27 | Ushio U-Tech Inc. | Automatic control system for lighting projector |
JPH06178379A (ja) | 1992-12-10 | 1994-06-24 | Sony Corp | 映像視聴システム |
FR2699205B1 (fr) * | 1992-12-11 | 1995-03-10 | Decaux Jean Claude | Perfectionnements aux procédés et dispositifs pour protéger des bruits extérieurs un volume donné, de préférence disposé à l'intérieur d'un local. |
US5313172A (en) * | 1992-12-11 | 1994-05-17 | Rockwell International Corporation | Digitally switched gain amplifier for digitally controlled automatic gain control amplifier applications |
JP3205625B2 (ja) | 1993-01-07 | 2001-09-04 | パイオニア株式会社 | スピーカ装置 |
JPH06225379A (ja) | 1993-01-25 | 1994-08-12 | Matsushita Electric Ind Co Ltd | 指向性スピーカ装置 |
JPH077788A (ja) * | 1993-03-19 | 1995-01-10 | Ford Motor Co | 音響再生システム及び音響再生方法 |
WO1994023351A1 (en) | 1993-04-03 | 1994-10-13 | Cat Systems Limited | Localising system |
JPH06318087A (ja) | 1993-05-07 | 1994-11-15 | Mitsui Constr Co Ltd | 舞台用音響制御方法と装置 |
JP3293240B2 (ja) * | 1993-05-18 | 2002-06-17 | ヤマハ株式会社 | ディジタル信号処理装置 |
JP2702876B2 (ja) | 1993-09-08 | 1998-01-26 | 株式会社石川製作所 | 音響源検出装置 |
DE4428500C2 (de) | 1993-09-23 | 2003-04-24 | Siemens Ag | Ultraschallwandlerarray mit einer reduzierten Anzahl von Wandlerelementen |
US5751821A (en) * | 1993-10-28 | 1998-05-12 | Mcintosh Laboratory, Inc. | Speaker system with reconfigurable, high-frequency dispersion pattern |
JPH07154893A (ja) | 1993-12-01 | 1995-06-16 | Nippon Hoso Kyokai <Nhk> | スピーカシステム |
DE4343807A1 (de) * | 1993-12-22 | 1995-06-29 | Guenther Nubert Elektronic Gmb | Verfahren und Vorrichtung zum Unwandeln eines elektrischen in ein akustisches Signal |
JPH07203581A (ja) | 1993-12-29 | 1995-08-04 | Matsushita Electric Ind Co Ltd | 指向性スピーカシステム |
GB2290380A (en) | 1994-05-13 | 1995-12-20 | Gd Eng Ass | Shot tracking device |
US5517200A (en) * | 1994-06-24 | 1996-05-14 | The United States Of America As Represented By The Secretary Of The Air Force | Method for detecting and assessing severity of coordinated failures in phased array antennas |
NL9401860A (nl) * | 1994-11-08 | 1996-06-03 | Duran Bv | Luidsprekersysteem met bestuurde richtinggevoeligheid. |
GB9506725D0 (en) * | 1995-03-31 | 1995-05-24 | Hooley Anthony | Improvements in or relating to loudspeakers |
US5763785A (en) * | 1995-06-29 | 1998-06-09 | Massachusetts Institute Of Technology | Integrated beam forming and focusing processing circuit for use in an ultrasound imaging system |
GB2320351B (en) | 1995-09-05 | 1999-09-29 | Ryford Ltd | Flow control means |
US5832097A (en) * | 1995-09-19 | 1998-11-03 | Gennum Corporation | Multi-channel synchronous companding system |
US6205224B1 (en) | 1996-05-17 | 2001-03-20 | The Boeing Company | Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
DE19920307A1 (de) * | 1999-05-03 | 2000-11-16 | St Microelectronics Gmbh | Elektrische Schaltung zum Steuern einer Last |
US7260235B1 (en) | 2000-10-16 | 2007-08-21 | Bose Corporation | Line electroacoustical transducing |
CN101674512A (zh) * | 2001-03-27 | 2010-03-17 | 1...有限公司 | 产生声场的方法和装置 |
GB0203895D0 (en) * | 2002-02-19 | 2002-04-03 | 1 Ltd | Compact surround-sound system |
-
1995
- 1995-03-31 GB GBGB9506725.2A patent/GB9506725D0/en active Pending
-
1996
- 1996-03-27 US US08/930,360 patent/US6373955B1/en not_active Expired - Lifetime
- 1996-03-27 CN CNB96193039XA patent/CN1147207C/zh not_active Expired - Fee Related
- 1996-03-27 JP JP52907696A patent/JP3492698B2/ja not_active Expired - Fee Related
- 1996-03-27 DK DK96907605T patent/DK0818122T3/da active
- 1996-03-27 DE DE69635286T patent/DE69635286D1/de not_active Expired - Lifetime
- 1996-03-27 DE DE69618183T patent/DE69618183T2/de not_active Expired - Fee Related
- 1996-03-27 AT AT96907605T patent/ATE211345T1/de not_active IP Right Cessation
- 1996-03-27 EP EP01108918A patent/EP1122973B1/de not_active Expired - Lifetime
- 1996-03-27 AT AT01108918T patent/ATE306801T1/de not_active IP Right Cessation
- 1996-03-27 EP EP96907605A patent/EP0818122B1/de not_active Expired - Lifetime
- 1996-03-27 WO PCT/GB1996/000736 patent/WO1996031086A1/en active IP Right Grant
- 1996-03-27 AU AU51170/96A patent/AU5117096A/en not_active Abandoned
- 1996-03-27 CN CN200410006846.2A patent/CN1575037A/zh active Pending
-
2001
- 2001-05-02 US US09/848,752 patent/US6967541B2/en not_active Expired - Fee Related
-
2005
- 2005-08-18 US US11/207,110 patent/US7215788B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU5117096A (en) | 1996-10-16 |
EP1122973B1 (de) | 2005-10-12 |
JP3492698B2 (ja) | 2004-02-03 |
EP0818122A1 (de) | 1998-01-14 |
DE69618183D1 (de) | 2002-01-31 |
EP0818122B1 (de) | 2001-12-19 |
US7215788B2 (en) | 2007-05-08 |
ATE211345T1 (de) | 2002-01-15 |
WO1996031086A1 (en) | 1996-10-03 |
EP1122973A2 (de) | 2001-08-08 |
EP1122973A3 (de) | 2002-09-04 |
CN1147207C (zh) | 2004-04-21 |
GB9506725D0 (en) | 1995-05-24 |
US6967541B2 (en) | 2005-11-22 |
ATE306801T1 (de) | 2005-10-15 |
DE69635286D1 (de) | 2006-02-23 |
DE69618183T2 (de) | 2002-08-14 |
US6373955B1 (en) | 2002-04-16 |
JPH11502981A (ja) | 1999-03-09 |
US20060049889A1 (en) | 2006-03-09 |
US20010043652A1 (en) | 2001-11-22 |
CN1180470A (zh) | 1998-04-29 |
CN1575037A (zh) | 2005-02-02 |
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