FR35192E - Perfectionnements aux dispositifs acoustiques - Google Patents
Perfectionnements aux dispositifs acoustiquesInfo
- Publication number
- FR35192E FR35192E FR35192DA FR35192E FR 35192 E FR35192 E FR 35192E FR 35192D A FR35192D A FR 35192DA FR 35192 E FR35192 E FR 35192E
- Authority
- FR
- France
- Prior art keywords
- acoustic devices
- acoustic
- 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
- H04R7/04—Plane diaphragms
-
- 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
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
-
- 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
-
- 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
- H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
-
- 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
- H04R9/06—Loudspeakers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US190423A US1726105A (en) | 1927-05-11 | 1927-05-11 | Acoustic device |
US190484A US1866603A (en) | 1927-05-11 | 1927-05-11 | Acoustic device |
Publications (1)
Publication Number | Publication Date |
---|---|
FR35192E true FR35192E (fr) | 1929-12-17 |
Family
ID=26886097
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR644552D Expired FR644552A (fr) | 1927-05-11 | 1927-09-23 | Perfectionnements aux dispositifs acoustiques |
FR35192D Expired FR35192E (fr) | 1927-05-11 | 1928-04-11 | Perfectionnements aux dispositifs acoustiques |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR644552D Expired FR644552A (fr) | 1927-05-11 | 1927-09-23 | Perfectionnements aux dispositifs acoustiques |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE345838A (fr) |
FR (2) | FR644552A (fr) |
GB (2) | GB290235A (fr) |
NL (1) | NL25012C (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2474848B (en) * | 2009-10-27 | 2014-05-28 | Michael Peter Cooke | Loudspeaker |
-
0
- NL NL25012D patent/NL25012C/xx active
- BE BE345838D patent/BE345838A/xx unknown
-
1927
- 1927-09-23 FR FR644552D patent/FR644552A/fr not_active Expired
- 1927-10-13 GB GB2722827A patent/GB290235A/en not_active Expired
-
1928
- 1928-02-11 GB GB436628A patent/GB290239A/en not_active Expired
- 1928-04-11 FR FR35192D patent/FR35192E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR644552A (fr) | 1928-10-10 |
GB290235A (en) | 1928-06-14 |
NL25012C (fr) | |
GB290239A (en) | 1929-05-13 |
BE345838A (fr) |
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