FR791384A - Perfectionnements aux hauts-parleurs et organes analogues - Google Patents
Perfectionnements aux hauts-parleurs et organes analoguesInfo
- Publication number
- FR791384A FR791384A FR791384DA FR791384A FR 791384 A FR791384 A FR 791384A FR 791384D A FR791384D A FR 791384DA FR 791384 A FR791384 A FR 791384A
- Authority
- FR
- France
- Prior art keywords
- loudspeakers
- similar devices
- similar
- devices
- 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.)
- Expired
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
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB18184/34A GB440041A (en) | 1934-06-19 | 1934-06-19 | Improvements in or relating to loud-speakers and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
FR791384A true FR791384A (fr) | 1935-12-10 |
Family
ID=10108101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR791384D Expired FR791384A (fr) | 1934-06-19 | 1935-06-17 | Perfectionnements aux hauts-parleurs et organes analogues |
Country Status (3)
Country | Link |
---|---|
US (1) | US2071828A (fr) |
FR (1) | FR791384A (fr) |
GB (1) | GB440041A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840178A (en) * | 1954-01-20 | 1958-06-24 | Tesla Np | Device for the reproduction of sound |
JPS538594A (en) * | 1976-07-13 | 1978-01-26 | Seiko Instr & Electronics Ltd | Electronic buzzer |
DE3147145C2 (de) * | 1981-11-27 | 1983-10-13 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur Erzeugung einer drehzahlproportionalen Spannung und Schaltungsanordnung zur Durchführung des Verfahrens |
DE9109452U1 (de) * | 1991-07-31 | 1991-10-17 | Nokia Unterhaltungselektronik (Deutschland) GmbH, 7530 Pforzheim | Konuslautsprecher |
US6496590B2 (en) | 2000-12-08 | 2002-12-17 | Jl Audio, Inc. | Loudspeaker with improved diaphragm |
US6963652B1 (en) | 2003-04-18 | 2005-11-08 | James M Colombo | Low frequency generator |
CN101601308B (zh) * | 2007-01-12 | 2013-03-13 | 萨姆森科技公司 | 扬声器马达和扬声器 |
JP1602130S (fr) * | 2017-08-08 | 2018-04-16 |
-
1934
- 1934-06-19 GB GB18184/34A patent/GB440041A/en not_active Expired
- 1934-10-16 US US748474A patent/US2071828A/en not_active Expired - Lifetime
-
1935
- 1935-06-17 FR FR791384D patent/FR791384A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2071828A (en) | 1937-02-23 |
GB440041A (en) | 1935-12-19 |
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