FR722913A - Improvements to electrodynamic loudspeakers - Google Patents
Improvements to electrodynamic loudspeakersInfo
- Publication number
- FR722913A FR722913A FR722913DA FR722913A FR 722913 A FR722913 A FR 722913A FR 722913D A FR722913D A FR 722913DA FR 722913 A FR722913 A FR 722913A
- Authority
- FR
- France
- Prior art keywords
- electrodynamic loudspeakers
- electrodynamic
- loudspeakers
- 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
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
-
- 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
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE599805T | 1930-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR722913A true FR722913A (en) | 1932-03-30 |
Family
ID=34608816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR722913D Expired FR722913A (en) | 1930-09-17 | 1931-09-15 | Improvements to electrodynamic loudspeakers |
Country Status (4)
Country | Link |
---|---|
US (1) | US1934184A (en) |
DE (1) | DE599805C (en) |
FR (1) | FR722913A (en) |
NL (1) | NL33150C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691148A (en) * | 1950-06-24 | 1954-10-05 | Rca Corp | Ultrasonic transducer |
US3198890A (en) * | 1961-06-14 | 1965-08-03 | Rosen Alfred H | High fidelity sound reproducer |
US4354066A (en) * | 1980-09-15 | 1982-10-12 | Necoechea Robert W | Rigid-diaphragm transducer with plural coils |
TW510139B (en) * | 2001-01-26 | 2002-11-11 | Kirk Acoustics As | An electroacoustic transducer and a coil and a magnet circuit therefor |
-
0
- NL NL33150D patent/NL33150C/xx active
-
1930
- 1930-09-17 DE DE1930599805D patent/DE599805C/en not_active Expired
-
1931
- 1931-09-15 FR FR722913D patent/FR722913A/en not_active Expired
- 1931-12-26 US US583297A patent/US1934184A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL33150C (en) | |
US1934184A (en) | 1933-11-07 |
DE599805C (en) | 1934-07-09 |
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