HK1008650A1 - Panel-form loudspeakers - Google Patents
Panel-form loudspeakersInfo
- Publication number
- HK1008650A1 HK1008650A1 HK98109455A HK98109455A HK1008650A1 HK 1008650 A1 HK1008650 A1 HK 1008650A1 HK 98109455 A HK98109455 A HK 98109455A HK 98109455 A HK98109455 A HK 98109455A HK 1008650 A1 HK1008650 A1 HK 1008650A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- radiator
- panel
- transducer
- coupled
- form loudspeakers
- Prior art date
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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Holo Graphy (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
A panel-form loudspeaker having a distributed mode acoustic radiator (2) and a transducer (9) coupled to vibrate the radiator to cause it to resonate, characterised by a second transducer (63) coupled to the radiator to produce a signal in response to resonance of the radiator due to incident acoustic energy.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9517918.0A GB9517918D0 (en) | 1995-09-02 | 1995-09-02 | Acoustic device |
GBGB9522281.6A GB9522281D0 (en) | 1995-10-31 | 1995-10-31 | Acoustic device |
GBGB9606836.6A GB9606836D0 (en) | 1996-03-30 | 1996-03-30 | Acoustic device |
PCT/GB1996/002163 WO1997009847A1 (en) | 1995-09-02 | 1996-09-02 | Panel-form loudspeakers |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1008650A1 true HK1008650A1 (en) | 1999-05-14 |
Family
ID=34865249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98109455A HK1008650A1 (en) | 1995-09-02 | 1998-07-28 | Panel-form loudspeakers |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0847666B1 (en) |
JP (1) | JPH11512258A (en) |
CN (1) | CN1195459A (en) |
AT (1) | ATE177281T1 (en) |
AU (1) | AU703065B2 (en) |
CA (1) | CA2230701A1 (en) |
DE (1) | DE69601647T2 (en) |
DK (1) | DK0847666T3 (en) |
EA (1) | EA000929B1 (en) |
ES (1) | ES2131409T3 (en) |
HK (1) | HK1008650A1 (en) |
RO (1) | RO119047B1 (en) |
WO (1) | WO1997009847A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999067974A1 (en) | 1998-06-22 | 1999-12-29 | Slab Technology Limited | Loudspeakers |
GB9914507D0 (en) * | 1999-06-23 | 1999-08-25 | New Transducers Ltd | Acoustic device |
US7157649B2 (en) * | 1999-12-23 | 2007-01-02 | New Transducers Limited | Contact sensitive device |
GB0116310D0 (en) | 2001-07-04 | 2001-08-29 | New Transducers Ltd | Contact sensitive device |
US6871149B2 (en) | 2002-12-06 | 2005-03-22 | New Transducers Limited | Contact sensitive device |
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10848118B2 (en) | 2004-08-10 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
CN101253804B (en) * | 2005-11-02 | 2012-11-28 | 日本电气株式会社 | Speaker, image element protective screen, case of terminal, and terminal |
FR2895617A1 (en) * | 2005-12-26 | 2007-06-29 | Jacques Gerald Foin | Audio communication system for use in prison, has loud speakers utilized in two directions as loudspeaker or microphone using diaphragm of loud speaker, and local outed network managing audio decentralized on bus cabling system |
US10848867B2 (en) | 2006-02-07 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11202161B2 (en) | 2006-02-07 | 2021-12-14 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
FR2943880A1 (en) * | 2009-03-30 | 2010-10-01 | Activacoustic | ACOUSTIC PANEL FOR RECEIVING, TRANSMITTING OR ABSORBING SOUNDS. |
US9906858B2 (en) | 2013-10-22 | 2018-02-27 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10820883B2 (en) | 2014-04-16 | 2020-11-03 | Bongiovi Acoustics Llc | Noise reduction assembly for auscultation of a body |
CN115428474A (en) * | 2020-04-29 | 2022-12-02 | 惠普发展公司,有限责任合伙企业 | Modification of audio signals based on ambient noise collected by loudspeakers |
FR3128903B1 (en) * | 2021-11-10 | 2024-04-26 | Saint Gobain | Vehicle glazing adapted for acoustic emission and/or reception |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2241942B1 (en) * | 1973-08-24 | 1976-05-07 | Tretiakoff Oleg | |
JPS5748153Y2 (en) * | 1977-11-26 | 1982-10-22 | ||
DE2819615A1 (en) * | 1978-05-05 | 1979-11-08 | Messerschmitt Boelkow Blohm | METHOD FOR ACHIEVING EVEN SOUND DISTRIBUTION PROPERTIES |
WO1986001362A1 (en) * | 1984-08-03 | 1986-02-27 | Motorola, Inc. | Piezoelectric loudspeaker having a feedback transducer |
DE3429147C2 (en) * | 1984-08-08 | 1987-04-02 | Friedrich 6650 Homburg Müller | Arrangement for acoustic feedback of loudspeakers |
US4654546A (en) * | 1984-11-20 | 1987-03-31 | Kari Kirjavainen | Electromechanical film and procedure for manufacturing same |
US4751419A (en) * | 1986-12-10 | 1988-06-14 | Nitto Incorporated | Piezoelectric oscillation assembly including several individual piezoelectric oscillation devices having a common oscillation plate member |
WO1992003024A1 (en) * | 1990-08-04 | 1992-02-20 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Panel-form loudspeaker |
-
1996
- 1996-09-02 RO RO98-00646A patent/RO119047B1/en unknown
- 1996-09-02 ES ES96929404T patent/ES2131409T3/en not_active Expired - Lifetime
- 1996-09-02 DE DE69601647T patent/DE69601647T2/en not_active Expired - Fee Related
- 1996-09-02 CN CN96196711.0A patent/CN1195459A/en active Pending
- 1996-09-02 EP EP96929404A patent/EP0847666B1/en not_active Expired - Lifetime
- 1996-09-02 AU AU68819/96A patent/AU703065B2/en not_active Ceased
- 1996-09-02 DK DK96929404T patent/DK0847666T3/en active
- 1996-09-02 AT AT96929404T patent/ATE177281T1/en not_active IP Right Cessation
- 1996-09-02 JP JP9510964A patent/JPH11512258A/en active Pending
- 1996-09-02 CA CA002230701A patent/CA2230701A1/en not_active Abandoned
- 1996-09-02 WO PCT/GB1996/002163 patent/WO1997009847A1/en not_active Application Discontinuation
- 1996-09-02 EA EA199800257A patent/EA000929B1/en not_active IP Right Cessation
-
1998
- 1998-07-28 HK HK98109455A patent/HK1008650A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69601647D1 (en) | 1999-04-08 |
DE69601647T2 (en) | 1999-09-16 |
ATE177281T1 (en) | 1999-03-15 |
EA000929B1 (en) | 2000-06-26 |
WO1997009847A1 (en) | 1997-03-13 |
ES2131409T3 (en) | 1999-07-16 |
JPH11512258A (en) | 1999-10-19 |
AU6881996A (en) | 1997-03-27 |
EP0847666B1 (en) | 1999-03-03 |
CN1195459A (en) | 1998-10-07 |
AU703065B2 (en) | 1999-03-11 |
EA199800257A1 (en) | 1998-10-29 |
EP0847666A1 (en) | 1998-06-17 |
DK0847666T3 (en) | 1999-10-04 |
RO119047B1 (en) | 2004-02-27 |
CA2230701A1 (en) | 1997-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |