CN1972525B - 超定向扬声器系统及其信号处理方法 - Google Patents
超定向扬声器系统及其信号处理方法 Download PDFInfo
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- CN1972525B CN1972525B CN2006101494818A CN200610149481A CN1972525B CN 1972525 B CN1972525 B CN 1972525B CN 2006101494818 A CN2006101494818 A CN 2006101494818A CN 200610149481 A CN200610149481 A CN 200610149481A CN 1972525 B CN1972525 B CN 1972525B
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- 238000003672 processing method Methods 0.000 title claims abstract description 24
- 230000003044 adaptive effect Effects 0.000 claims description 51
- 238000001914 filtration Methods 0.000 claims description 24
- 238000004364 calculation method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000005236 sound signal Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 238000013461 design Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- 230000003252 repetitive effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Classifications
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- 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
-
- 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
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for 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
- 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
- H04R2217/00—Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
- H04R2217/03—Parametric transducers where sound is generated or captured by the acoustic demodulation of amplitude modulated ultrasonic waves
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2005-0111146 | 2005-11-21 | ||
KR1020050111146 | 2005-11-21 | ||
KR1020050111146A KR100622078B1 (ko) | 2005-11-21 | 2005-11-21 | 초지향성 스피커 시스템 및 신호처리 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1972525A CN1972525A (zh) | 2007-05-30 |
CN1972525B true CN1972525B (zh) | 2011-12-07 |
Family
ID=37624591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006101494818A Expired - Fee Related CN1972525B (zh) | 2005-11-21 | 2006-11-21 | 超定向扬声器系统及其信号处理方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7929715B2 (zh) |
EP (1) | EP1791390B1 (zh) |
JP (1) | JP2007143157A (zh) |
KR (1) | KR100622078B1 (zh) |
CN (1) | CN1972525B (zh) |
AT (1) | ATE544301T1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9219960B2 (en) | 2009-12-16 | 2015-12-22 | Trigence Semiconductor Inc. | Acoustic playback system |
US9226053B2 (en) | 2008-06-16 | 2015-12-29 | Trigence Semiconductor, Inc. | Digital speaker driving apparatus |
US9276540B2 (en) | 2006-05-21 | 2016-03-01 | Trigence Semiconductors, Inc. | Digital/analogue conversion apparatus |
US9300310B2 (en) | 2009-12-09 | 2016-03-29 | Trigence Semiconductor, Inc. | Selection device |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009054930A1 (en) * | 2007-10-22 | 2009-04-30 | Wms Gaming Inc. | Wagering game table audio system |
JP4506873B2 (ja) * | 2008-05-08 | 2010-07-21 | ソニー株式会社 | 信号処理装置、信号処理方法 |
KR101128353B1 (ko) | 2009-05-11 | 2012-03-27 | 제주대학교 산학협력단 | 블록단위 신호검출에 기반의 고효율 고지향성 스피커 시스템 및 신호처리 방법 |
KR101127035B1 (ko) * | 2009-07-15 | 2012-03-26 | 국방과학연구소 | 자동 고지향 음향 시스템의 신호처리장치 및 신호처리방법 |
US8891783B2 (en) | 2009-08-25 | 2014-11-18 | Nanyang Technological University | Directional sound system |
US20120314872A1 (en) * | 2010-01-19 | 2012-12-13 | Ee Leng Tan | System and method for processing an input signal to produce 3d audio effects |
CN102185636A (zh) * | 2011-03-16 | 2011-09-14 | 杭州华韵天略电子科技有限公司 | 利用线性调频信号调制解调声波的方法及系统 |
KR101947066B1 (ko) | 2011-09-15 | 2019-02-12 | 인텔 코포레이션 | 전치 왜곡 선형화 통신 시스템 및 송신기의 전치 왜곡 선형화 방법 |
US9462370B2 (en) | 2012-02-08 | 2016-10-04 | Kyushu Institute Of Technology | Muting device |
JP6213916B2 (ja) * | 2013-09-27 | 2017-10-18 | 国立大学法人九州工業大学 | 指向性音響システム |
US9432785B2 (en) * | 2014-12-10 | 2016-08-30 | Turtle Beach Corporation | Error correction for ultrasonic audio systems |
KR101691078B1 (ko) | 2015-12-24 | 2016-12-29 | 포항공과대학교 산학협력단 | 초음파를 이용한 특정 가청구역 마이크로폰 |
CN105979437A (zh) * | 2016-07-13 | 2016-09-28 | 微鲸科技有限公司 | 音频播放装置以及音频系统 |
KR101882140B1 (ko) * | 2017-04-25 | 2018-07-26 | 주식회사 제이디솔루션 | 초지향성 및 무지향성 동시 신호출력이 가능한 복합스피커시스템 |
WO2018199347A1 (ko) * | 2017-04-25 | 2018-11-01 | 주식회사 제이디솔루션 | 초지향성 및 무지향성 동시 신호출력이 가능한 복합스피커시스템 |
KR101857390B1 (ko) * | 2017-06-26 | 2018-05-11 | 김옥경 | 컬럼 스피커의 지향성패턴 조절장치 |
KR101859951B1 (ko) * | 2017-07-03 | 2018-05-21 | 김옥경 | 스피커의 수직지향성 조절장치 |
US10672416B2 (en) * | 2017-10-20 | 2020-06-02 | Board Of Trustees Of The University Of Illinois | Causing microphones to detect inaudible sounds and defense against inaudible attacks |
KR102013068B1 (ko) | 2018-05-04 | 2019-08-21 | 주식회사 제이디솔루션 | 안정성이 증가된 초지향성 스피커 회로 |
KR102001778B1 (ko) | 2018-05-23 | 2019-07-18 | 주식회사 제이디솔루션 | 개선된 초음파 초지향성 스피커 시스템 및 이를 위한 주파수 변조 처리 방법 |
KR101981576B1 (ko) | 2018-10-29 | 2019-05-23 | 캐치플로우(주) | 초지향성 초음파 스피커 장치의 다이나믹레인지 제어 방법 및 이를 구비한 초지향성 초음파 스피커 장치 |
KR101981575B1 (ko) | 2018-10-29 | 2019-05-23 | 캐치플로우(주) | 초지향성 초음파 스피커 장치의 음질개선 방법 및 이를 구비한 초음파 스피커 장치 |
KR102077472B1 (ko) | 2018-12-28 | 2020-02-14 | 캐치플로우(주) | 초지향성 초음파 스피커의 개선된 오디오 신호처리 방법 및 이를 구비한 초음파 스피커 장치 |
KR102022962B1 (ko) | 2019-05-08 | 2019-09-19 | 캐치플로우(주) | 하이브리드 초지향성 스피커 |
CN110267161A (zh) * | 2019-06-17 | 2019-09-20 | 重庆清文科技有限公司 | 一种定向声音失真矫正方法和装置 |
CN110784799B (zh) * | 2019-10-29 | 2021-01-22 | 中国电子科技集团公司第四十一研究所 | 一种声音定向传输方法及系统 |
KR102235797B1 (ko) | 2019-12-04 | 2021-04-02 | 주식회사 제이디솔루션 | 초지향성 스피커를 이용한 사운드 태그 시스템 |
KR102236404B1 (ko) | 2019-12-31 | 2021-04-05 | 주식회사 제이디솔루션 | 초지향성 스피커를 이용한 대중교통수단 운임결제용 사운드 태그 시스템 |
KR102402706B1 (ko) | 2020-07-10 | 2022-05-26 | (주)쏘티 | 초지향성 스피커를 이용한 사운드 태그 시스템 및 이에 사용되는 스피커 |
CN113395637B (zh) * | 2021-06-10 | 2022-09-09 | 上海傅硅电子科技有限公司 | 一种音频功放芯片输出电压的控制方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1061770A2 (en) * | 1999-06-14 | 2000-12-20 | Nokia Mobile Phones Ltd. | Audio apparatus |
CN1378764A (zh) * | 1999-08-26 | 2002-11-06 | 美国技术公司 | 用于参数扬声器系统的调制器处理 |
Family Cites Families (7)
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JPS5093602A (zh) * | 1973-12-20 | 1975-07-25 | ||
US6573948B1 (en) * | 1999-06-25 | 2003-06-03 | Samsung Electronics Co., Ltd. | Equalizing intermediate-frequency signals before demodulating them in a digital television receiver |
US7343017B2 (en) * | 1999-08-26 | 2008-03-11 | American Technology Corporation | System for playback of pre-encoded signals through a parametric loudspeaker system |
US6631197B1 (en) | 2000-07-24 | 2003-10-07 | Gn Resound North America Corporation | Wide audio bandwidth transduction method and device |
US7054359B2 (en) * | 2001-06-05 | 2006-05-30 | Koninklijke Philips Electronics N.V. | VSV-MOE pre-equalizer for 8-VSB DTV |
SG98479A1 (en) | 2002-03-18 | 2003-09-19 | Sony Electronics Singapore Pte | Methods and devices for preprocessing signals for a loudspeaker |
KR200355341Y1 (ko) | 2004-04-02 | 2004-07-06 | 주식회사 솔리토닉스 | 초음파 스피커 시스템을 구비하는 이동통신 단말기용 보드 |
-
2005
- 2005-11-21 KR KR1020050111146A patent/KR100622078B1/ko active IP Right Grant
-
2006
- 2006-11-07 AT AT06123564T patent/ATE544301T1/de active
- 2006-11-07 EP EP06123564A patent/EP1791390B1/en active Active
- 2006-11-10 US US11/558,489 patent/US7929715B2/en active Active
- 2006-11-15 JP JP2006309321A patent/JP2007143157A/ja active Pending
- 2006-11-21 CN CN2006101494818A patent/CN1972525B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1061770A2 (en) * | 1999-06-14 | 2000-12-20 | Nokia Mobile Phones Ltd. | Audio apparatus |
CN1378764A (zh) * | 1999-08-26 | 2002-11-06 | 美国技术公司 | 用于参数扬声器系统的调制器处理 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9276540B2 (en) | 2006-05-21 | 2016-03-01 | Trigence Semiconductors, Inc. | Digital/analogue conversion apparatus |
US9681231B2 (en) | 2006-05-21 | 2017-06-13 | Trigence Semiconductor, Inc. | Digital/analog conversion apparatus |
US9226053B2 (en) | 2008-06-16 | 2015-12-29 | Trigence Semiconductor, Inc. | Digital speaker driving apparatus |
US9693136B2 (en) | 2008-06-16 | 2017-06-27 | Trigence Semiconductor Inc. | Digital speaker driving apparatus |
US9300310B2 (en) | 2009-12-09 | 2016-03-29 | Trigence Semiconductor, Inc. | Selection device |
US9735796B2 (en) | 2009-12-09 | 2017-08-15 | Trigence Semiconductor, Inc. | Selection device |
US9219960B2 (en) | 2009-12-16 | 2015-12-22 | Trigence Semiconductor Inc. | Acoustic playback system |
US9544691B2 (en) | 2009-12-16 | 2017-01-10 | Trigence Semiconductor, Inc. | Acoustic playback system |
Also Published As
Publication number | Publication date |
---|---|
ATE544301T1 (de) | 2012-02-15 |
KR100622078B1 (ko) | 2006-09-13 |
JP2007143157A (ja) | 2007-06-07 |
EP1791390A3 (en) | 2009-09-23 |
EP1791390A2 (en) | 2007-05-30 |
US20070121968A1 (en) | 2007-05-31 |
US7929715B2 (en) | 2011-04-19 |
EP1791390B1 (en) | 2012-02-01 |
CN1972525A (zh) | 2007-05-30 |
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