FR2335118A1 - ELECTRO-ACOUSTIC TRANSDUCER, ESPECIALLY FOR SPEAKER AND EARPHONES - Google Patents
ELECTRO-ACOUSTIC TRANSDUCER, ESPECIALLY FOR SPEAKER AND EARPHONESInfo
- Publication number
- FR2335118A1 FR2335118A1 FR7637247A FR7637247A FR2335118A1 FR 2335118 A1 FR2335118 A1 FR 2335118A1 FR 7637247 A FR7637247 A FR 7637247A FR 7637247 A FR7637247 A FR 7637247A FR 2335118 A1 FR2335118 A1 FR 2335118A1
- Authority
- FR
- France
- Prior art keywords
- earphones
- electro
- speaker
- acoustic transducer
- acoustic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5081275A GB1545517A (en) | 1975-12-11 | 1975-12-11 | Transducer |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2335118A1 true FR2335118A1 (en) | 1977-07-08 |
FR2335118B1 FR2335118B1 (en) | 1982-04-23 |
Family
ID=10457472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7637247A Granted FR2335118A1 (en) | 1975-12-11 | 1976-12-10 | ELECTRO-ACOUSTIC TRANSDUCER, ESPECIALLY FOR SPEAKER AND EARPHONES |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5292507A (en) |
BE (1) | BE849303A (en) |
DE (1) | DE2656068A1 (en) |
FR (1) | FR2335118A1 (en) |
GB (1) | GB1545517A (en) |
NL (1) | NL7613813A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0012608A1 (en) * | 1978-12-14 | 1980-06-25 | The Rank Organisation Limited | Isodynamic electromagnetic acoustic transducer with stressed diaphragm |
WO1995024815A1 (en) * | 1994-03-08 | 1995-09-14 | Jonathan Neil Smith | Electromagnetic loudspeaker |
GB2301507A (en) * | 1994-03-08 | 1996-12-04 | Jonathan Neil Smith | Electromagnetic loudspeaker |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3301848C2 (en) * | 1983-01-20 | 1984-11-08 | Siemens AG, 1000 Berlin und 8000 München | Ultrasonic transducer |
US4536673A (en) * | 1984-01-09 | 1985-08-20 | Siemens Aktiengesellschaft | Piezoelectric ultrasonic converter with polyurethane foam damper |
US6008714A (en) * | 1997-11-13 | 1999-12-28 | Okuda; Masanao | Thin-Structured electromagnetic transducer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1815564A (en) * | 1929-06-13 | 1931-07-21 | Westinghouse Electric & Mfg Co | Translating device |
FR2119026A1 (en) * | 1970-12-23 | 1972-08-04 | Magnepan Inc | |
US3873784A (en) * | 1973-03-29 | 1975-03-25 | Audio Arts Inc | Acoustic transducer |
-
1975
- 1975-12-11 GB GB5081275A patent/GB1545517A/en not_active Expired
-
1976
- 1976-12-10 FR FR7637247A patent/FR2335118A1/en active Granted
- 1976-12-10 BE BE173173A patent/BE849303A/en not_active IP Right Cessation
- 1976-12-10 DE DE19762656068 patent/DE2656068A1/en not_active Ceased
- 1976-12-11 JP JP14930076A patent/JPS5292507A/en active Pending
- 1976-12-13 NL NL7613813A patent/NL7613813A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1815564A (en) * | 1929-06-13 | 1931-07-21 | Westinghouse Electric & Mfg Co | Translating device |
FR2119026A1 (en) * | 1970-12-23 | 1972-08-04 | Magnepan Inc | |
US3873784A (en) * | 1973-03-29 | 1975-03-25 | Audio Arts Inc | Acoustic transducer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0012608A1 (en) * | 1978-12-14 | 1980-06-25 | The Rank Organisation Limited | Isodynamic electromagnetic acoustic transducer with stressed diaphragm |
WO1995024815A1 (en) * | 1994-03-08 | 1995-09-14 | Jonathan Neil Smith | Electromagnetic loudspeaker |
GB2301507A (en) * | 1994-03-08 | 1996-12-04 | Jonathan Neil Smith | Electromagnetic loudspeaker |
GB2301507B (en) * | 1994-03-08 | 1997-11-19 | Jonathan Neil Smith | Electromagnetic loudspeaker |
Also Published As
Publication number | Publication date |
---|---|
NL7613813A (en) | 1977-06-14 |
GB1545517A (en) | 1979-05-10 |
FR2335118B1 (en) | 1982-04-23 |
JPS5292507A (en) | 1977-08-04 |
DE2656068A1 (en) | 1977-06-23 |
BE849303A (en) | 1977-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |