IT945663B - Perfezionamento negli altoparlanti per frequenze medie - Google Patents
Perfezionamento negli altoparlanti per frequenze medieInfo
- Publication number
- IT945663B IT945663B IT55019/71A IT5501971A IT945663B IT 945663 B IT945663 B IT 945663B IT 55019/71 A IT55019/71 A IT 55019/71A IT 5501971 A IT5501971 A IT 5501971A IT 945663 B IT945663 B IT 945663B
- Authority
- IT
- Italy
- Prior art keywords
- speakers
- improvement
- medium frequencies
- frequencies
- medium
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/22—Clamping rim of diaphragm or cone against seating
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33171*[A GB1380914A (en) | 1971-01-04 | 1971-01-04 | Diaphragm assemblies for electro-acoustic transducers |
Publications (1)
Publication Number | Publication Date |
---|---|
IT945663B true IT945663B (it) | 1973-05-10 |
Family
ID=9702509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT55019/71A IT945663B (it) | 1971-01-04 | 1971-12-27 | Perfezionamento negli altoparlanti per frequenze medie |
Country Status (15)
Country | Link |
---|---|
US (1) | US3780232A (de) |
AT (1) | AT326744B (de) |
BE (1) | BE777617A (de) |
CH (1) | CH545053A (de) |
DE (2) | DE2166848A1 (de) |
DK (1) | DK138148B (de) |
ES (1) | ES398583A1 (de) |
FI (1) | FI57507C (de) |
FR (1) | FR2121536B1 (de) |
GB (1) | GB1380914A (de) |
IE (1) | IE35948B1 (de) |
IT (1) | IT945663B (de) |
NL (1) | NL7200036A (de) |
NO (1) | NO130255B (de) |
SE (1) | SE379474C (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1531791A (en) * | 1976-03-17 | 1978-11-08 | Rank Organisation Ltd | Transducers |
JPS5414726A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Ltd | Dome type speaker |
DE2941644C2 (de) * | 1978-10-17 | 1982-11-11 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Lautsprechermembran und Verfahren zu ihrer Herstellung |
DE2905566A1 (de) * | 1979-02-14 | 1980-08-28 | Standard Elektrik Lorenz Ag | Universelles kalottenlautsprecher- bauelement |
CH639707A5 (de) * | 1979-08-16 | 1983-11-30 | Staeubli Ag | Rotationsschaftmaschine. |
JPS6042558Y2 (ja) * | 1980-04-17 | 1985-12-27 | ソニー株式会社 | スピ−カ |
US4433214A (en) * | 1981-12-24 | 1984-02-21 | Motorola, Inc. | Acoustical transducer with a slotted piston suspension |
DE3722832A1 (de) * | 1987-07-03 | 1989-01-12 | Electronic Werke Deutschland | Membran fuer einen lautsprecher |
US5357587A (en) * | 1992-12-23 | 1994-10-18 | Grodinsky Robert M | Distortion reduction in loudspeakers |
JP3140895B2 (ja) * | 1993-10-08 | 2001-03-05 | パイオニア株式会社 | スピーカ装置 |
AT414069B (de) * | 1999-04-22 | 2006-08-15 | Akg Acoustics Gmbh | Elektroakustischer wandler für extreme druckbelastungen |
US6724910B1 (en) | 1999-10-04 | 2004-04-20 | Harman International Industries, Incorporated | Diaphragm stable through hygroscopic cycling |
US6351544B1 (en) | 1999-12-10 | 2002-02-26 | Harman International Industries Incorporated | Regressively hinged spider |
JP2002152885A (ja) * | 2000-11-14 | 2002-05-24 | Sony Corp | スピーカ装置 |
DK1515582T3 (da) * | 2003-09-11 | 2006-05-15 | Akg Acoustics Gmbh | Dynamisk elektroaukustisk omformer, navnlig lille höjtaler |
EP1694094A1 (de) * | 2005-02-18 | 2006-08-23 | AKG Acoustics GmbH | Membran für einen dynamischen Wandler |
AU2007231525A1 (en) * | 2006-03-28 | 2007-10-04 | Immersion Technology Property Limited | Loudspeaker system with acoustic equalisation |
US8848960B2 (en) * | 2008-05-21 | 2014-09-30 | Genus Audio Corp. | Speaker |
CN103085338B (zh) * | 2013-01-21 | 2014-12-10 | 宁海县雁苍山电力建设有限公司 | 模压组合纸卷筒的制造方法 |
GB2525429A (en) | 2014-04-24 | 2015-10-28 | Funktion One Res | Loudspeaker |
CN204929237U (zh) * | 2015-07-31 | 2015-12-30 | 常州美欧电子有限公司 | 移动终端 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US685429A (en) * | 1901-02-05 | 1901-10-29 | George Osten | Diaphragm for acoustical apparatus. |
GB385286A (en) * | 1930-03-17 | 1932-12-22 | Walter Greppert | Improvements in and relating to diaphragms, more particularly for sound boxes of talking machines |
US2442791A (en) * | 1945-09-07 | 1948-06-08 | Bell Telephone Labor Inc | Acoustic device |
GB763974A (en) * | 1953-10-14 | 1956-12-19 | Koepenick Funkwerk Veb | Electro-acoustic transducer of the moving coil type |
US2974204A (en) * | 1954-07-06 | 1961-03-07 | Kane Corp Du | Transducer |
AT193449B (de) * | 1955-09-30 | 1957-11-25 | Siemens Ag | Metallmembran |
DE1107712B (de) * | 1958-12-31 | 1961-05-31 | Sennheiser Electronic | Verfahren zur Herstellung einer Membran |
US3033945A (en) * | 1959-05-01 | 1962-05-08 | Ar Inc | Voice coil and diaphragm support for high frequency loud-speaker |
US3328537A (en) * | 1964-01-09 | 1967-06-27 | Hecht William | High frequency sound translating device |
AT274080B (de) * | 1967-07-05 | 1969-09-10 | Philips Nv | Schallwandler mit einer Schaumstoffmembran |
-
1971
- 1971-01-04 GB GB33171*[A patent/GB1380914A/en not_active Expired
- 1971-12-22 NO NO04781/71A patent/NO130255B/no unknown
- 1971-12-27 IT IT55019/71A patent/IT945663B/it active
- 1971-12-29 CH CH1911171A patent/CH545053A/de not_active IP Right Cessation
- 1971-12-30 FI FI3744/71A patent/FI57507C/fi active
- 1971-12-30 DE DE19712166848 patent/DE2166848A1/de active Pending
- 1971-12-30 DE DE2165572A patent/DE2165572C3/de not_active Expired
- 1971-12-30 AT AT1126671A patent/AT326744B/de not_active IP Right Cessation
- 1971-12-31 BE BE777617A patent/BE777617A/xx unknown
-
1972
- 1972-01-03 FR FR7200005A patent/FR2121536B1/fr not_active Expired
- 1972-01-04 SE SE7200063A patent/SE379474C/xx unknown
- 1972-01-04 US US00215332A patent/US3780232A/en not_active Expired - Lifetime
- 1972-01-04 IE IE2/72A patent/IE35948B1/xx unknown
- 1972-01-04 ES ES398583A patent/ES398583A1/es not_active Expired
- 1972-01-04 DK DK2872AA patent/DK138148B/da not_active IP Right Cessation
- 1972-01-04 NL NL7200036A patent/NL7200036A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2121536B1 (de) | 1979-08-03 |
FI57507B (fi) | 1980-04-30 |
BE777617A (fr) | 1972-04-17 |
DE2165572B2 (de) | 1975-11-06 |
AT326744B (de) | 1975-12-29 |
SE379474B (de) | 1975-10-06 |
DE2165572C3 (de) | 1981-06-19 |
FR2121536A1 (de) | 1972-08-25 |
DE2165572A1 (de) | 1972-07-20 |
NO130255B (de) | 1974-07-29 |
SE379474C (sv) | 1981-05-04 |
FI57507C (fi) | 1980-08-11 |
US3780232A (en) | 1973-12-18 |
IE35948L (en) | 1972-07-04 |
GB1380914A (en) | 1975-01-15 |
NL7200036A (de) | 1972-07-06 |
DK138148C (de) | 1979-01-08 |
DK138148B (da) | 1978-07-17 |
ES398583A1 (es) | 1974-09-16 |
DE2166848A1 (de) | 1976-03-11 |
CH545053A (de) | 1973-11-30 |
IE35948B1 (en) | 1976-07-07 |
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