FR2373205B1 - - Google Patents
Info
- Publication number
- FR2373205B1 FR2373205B1 FR7736325A FR7736325A FR2373205B1 FR 2373205 B1 FR2373205 B1 FR 2373205B1 FR 7736325 A FR7736325 A FR 7736325A FR 7736325 A FR7736325 A FR 7736325A FR 2373205 B1 FR2373205 B1 FR 2373205B1
- Authority
- FR
- France
- 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
- H04R7/127—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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/36—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means by using a single aperture of dimensions not greater than the shortest operating wavelength
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50496/76A GB1557879A (en) | 1976-12-03 | 1976-12-03 | Electro acoustic transducers |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2373205A1 FR2373205A1 (fr) | 1978-06-30 |
FR2373205B1 true FR2373205B1 (fr) | 1983-01-14 |
Family
ID=10456118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7736325A Granted FR2373205A1 (fr) | 1976-12-03 | 1977-12-02 | Transducteur electro-acoustique |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE2753790A1 (fr) |
DK (1) | DK536277A (fr) |
FR (1) | FR2373205A1 (fr) |
GB (1) | GB1557879A (fr) |
NL (1) | NL7713409A (fr) |
SE (1) | SE417564B (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3205731C2 (de) * | 1981-02-19 | 1993-01-14 | Magnat Electronik GmbH & Co KG, 5000 Köln | Lautsprecher, insbesondere Kalottenlautsprecher |
DE8104570U1 (de) * | 1981-02-19 | 1981-07-23 | Magnat Electronik GmbH & Co KG, 5000 Köln | Lautsprecher, insbesondere kalottenlautsprecher |
TW498698B (en) * | 2000-05-08 | 2002-08-11 | Koninkl Philips Electronics Nv | Loudspeaker having an acoustic panel and an electrical driver |
US8181736B2 (en) * | 2008-08-14 | 2012-05-22 | Harman International Industries, Incorporated | Phase plug and acoustic lens for direct radiating loudspeaker |
DE102021127864A1 (de) | 2021-10-26 | 2023-04-27 | Karsten Atmani, bürgerlicher Name Buß | Lautsprecher |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL77682C (fr) * | 1947-09-10 | |||
US3059720A (en) * | 1959-07-27 | 1962-10-23 | Ling Temco Vought Inc | High frequency loudspeakers |
-
1976
- 1976-12-03 GB GB50496/76A patent/GB1557879A/en not_active Expired
-
1977
- 1977-12-02 DK DK536277A patent/DK536277A/da not_active Application Discontinuation
- 1977-12-02 FR FR7736325A patent/FR2373205A1/fr active Granted
- 1977-12-02 DE DE19772753790 patent/DE2753790A1/de not_active Withdrawn
- 1977-12-04 NL NL7713409A patent/NL7713409A/xx not_active Application Discontinuation
- 1977-12-05 SE SE7713750A patent/SE417564B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SE417564B (sv) | 1981-03-23 |
GB1557879A (en) | 1979-12-12 |
SE7713750L (sv) | 1978-06-04 |
NL7713409A (nl) | 1978-06-06 |
DK536277A (da) | 1978-06-04 |
FR2373205A1 (fr) | 1978-06-30 |
DE2753790A1 (de) | 1978-06-08 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |