EP0491139A3 - Diaphragm for electroacoustic transducer with discontinuous variation of the aperture angle - Google Patents
Diaphragm for electroacoustic transducer with discontinuous variation of the aperture angle Download PDFInfo
- Publication number
- EP0491139A3 EP0491139A3 EP19910118025 EP91118025A EP0491139A3 EP 0491139 A3 EP0491139 A3 EP 0491139A3 EP 19910118025 EP19910118025 EP 19910118025 EP 91118025 A EP91118025 A EP 91118025A EP 0491139 A3 EP0491139 A3 EP 0491139A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- diaphragm
- degrees
- aperture angles
- electroacoustic transducer
- aperture angle
- 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
- 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
-
- 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)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0215390A AT396859B (en) | 1990-10-25 | 1990-10-25 | MEMBRANE FOR AN ELECTRO-ACOUSTIC TRANSFORMER WITH A CONTINUOUS CHANGE OF THE OPENING ANGLE FOR THE ADAPTATION TO THE HEARING FUNCTION |
AT2153/90 | 1990-10-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0491139A2 EP0491139A2 (en) | 1992-06-24 |
EP0491139A3 true EP0491139A3 (en) | 1993-01-13 |
EP0491139B1 EP0491139B1 (en) | 1994-07-06 |
Family
ID=3528906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91118025A Expired - Lifetime EP0491139B1 (en) | 1990-10-25 | 1991-10-23 | Diaphragm for electroacoustic transducer with discontinuous variation of the aperture angle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0491139B1 (en) |
AT (2) | AT396859B (en) |
DE (1) | DE59102121D1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1276265B1 (en) * | 1994-02-14 | 1997-10-28 | Karl Mantinger | POLAR TYPE ELECTRODYNAMIC TRANSDUCER WITH VIBRATING BODY. |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB369992A (en) * | 1929-12-19 | 1932-03-21 | Ernst Oscar Persson | An acoustic diaphragm |
DE899048C (en) * | 1950-05-04 | 1953-12-07 | Adelbert Stephan | Loudspeaker with tilt-free multi-cone membrane |
US3955055A (en) * | 1974-01-31 | 1976-05-04 | Sony Corporation | Dynamic loudspeaker |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR844211A (en) * | 1938-03-31 | 1939-07-20 | Improvements to sound reproducing devices such as loudspeakers | |
FR1251411A (en) * | 1959-12-10 | 1961-01-20 | D Applic Radio Electr Soc Ind | Improvements to speaker membranes |
JPS531517A (en) * | 1976-06-25 | 1978-01-09 | Kenzou Inoue | Dynamic speaker and method of producing same |
-
1990
- 1990-10-25 AT AT0215390A patent/AT396859B/en not_active IP Right Cessation
-
1991
- 1991-10-23 AT AT91118025T patent/ATE108289T1/en not_active IP Right Cessation
- 1991-10-23 EP EP91118025A patent/EP0491139B1/en not_active Expired - Lifetime
- 1991-10-23 DE DE59102121T patent/DE59102121D1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB369992A (en) * | 1929-12-19 | 1932-03-21 | Ernst Oscar Persson | An acoustic diaphragm |
DE899048C (en) * | 1950-05-04 | 1953-12-07 | Adelbert Stephan | Loudspeaker with tilt-free multi-cone membrane |
US3955055A (en) * | 1974-01-31 | 1976-05-04 | Sony Corporation | Dynamic loudspeaker |
Also Published As
Publication number | Publication date |
---|---|
ATA215390A (en) | 1993-04-15 |
DE59102121D1 (en) | 1994-08-11 |
EP0491139A2 (en) | 1992-06-24 |
ATE108289T1 (en) | 1994-07-15 |
EP0491139B1 (en) | 1994-07-06 |
AT396859B (en) | 1993-12-27 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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