NL172504C - ELECTRO-ACOUSTIC CONVERTER. - Google Patents
ELECTRO-ACOUSTIC CONVERTER.Info
- Publication number
- NL172504C NL172504C NLAANVRAGE7017251,A NL7017251A NL172504C NL 172504 C NL172504 C NL 172504C NL 7017251 A NL7017251 A NL 7017251A NL 172504 C NL172504 C NL 172504C
- Authority
- NL
- Netherlands
- Prior art keywords
- electro
- acoustic converter
- acoustic
- converter
- Prior art date
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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1961217A DE1961217C3 (en) | 1969-12-05 | 1969-12-05 | Electroacoustic transducers, in particular microphones for telephone systems |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7017251A NL7017251A (en) | 1971-06-08 |
NL172504B NL172504B (en) | 1983-04-05 |
NL172504C true NL172504C (en) | 1983-09-01 |
Family
ID=5753162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7017251,A NL172504C (en) | 1969-12-05 | 1970-11-25 | ELECTRO-ACOUSTIC CONVERTER. |
Country Status (13)
Country | Link |
---|---|
AT (1) | AT308860B (en) |
BE (1) | BE759888A (en) |
BG (1) | BG20138A3 (en) |
BR (1) | BR7024166D0 (en) |
CH (1) | CH522995A (en) |
DE (1) | DE1961217C3 (en) |
FI (1) | FI56601C (en) |
FR (1) | FR2070741B1 (en) |
GB (1) | GB1293670A (en) |
LU (1) | LU62172A1 (en) |
NL (1) | NL172504C (en) |
SE (1) | SE366190B (en) |
ZA (1) | ZA708029B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2119911B2 (en) * | 1971-04-23 | 1973-11-15 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Electroacoustic converter, in particular microphone for telephone systems |
DE2831411C2 (en) * | 1978-07-17 | 1983-10-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electroacoustic transducer with a diaphragm provided with a piezoelectric layer |
DE2937922A1 (en) * | 1979-09-19 | 1981-04-09 | Siemens AG, 1000 Berlin und 8000 München | PIEZOELECTRIC CONVERTER |
DE3005708C2 (en) * | 1980-02-15 | 1984-08-30 | Siemens AG, 1000 Berlin und 8000 München | Transducer plate for piezoelectric transducers |
DE3425176A1 (en) * | 1984-07-09 | 1986-02-20 | Fernsprech Und Signalbau Kg Sc | Piezoelectric telephone capsule |
DE3425173A1 (en) * | 1984-07-09 | 1986-01-16 | Fernsprech- und Signalbaugesellschaft mbH Schüler & Vershoven, 4300 Essen | Piezoelectric telephone capsule |
DE3518819A1 (en) * | 1985-05-24 | 1986-11-27 | Siemens AG, 1000 Berlin und 8000 München | Electro-acoustic transducer |
DE3609461A1 (en) * | 1986-03-20 | 1987-09-24 | Siemens Ag | ELECTROACOUSTIC CONVERTER |
DE8712014U1 (en) * | 1987-09-04 | 1987-10-29 | Chen, Ding Pang, Taipeh/T'ai-pei | Perimeter element for a loudspeaker |
CN1015289B (en) * | 1988-08-10 | 1992-01-01 | 西门子公司 | Electroacoustic transducer |
CN114390405B (en) * | 2021-12-10 | 2023-11-28 | 深圳羽声电子有限公司 | Vibrating diaphragm and use its audio amplifier |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB112333A (en) * | 1917-01-24 | 1918-01-10 | Alexander Marr | Improvements in or relating to Apparatus for the Reproduction of Sounds. |
FR1334235A (en) * | 1961-09-29 | 1963-08-02 | Siemens Ag | Electro-acoustic transformer |
DE1288146B (en) * | 1962-10-31 | 1969-01-30 | Siemens Ag | Electroacoustic converter |
-
0
- BE BE759888D patent/BE759888A/en not_active IP Right Cessation
-
1969
- 1969-12-05 DE DE1961217A patent/DE1961217C3/en not_active Expired
-
1970
- 1970-11-05 CH CH1639370A patent/CH522995A/en not_active IP Right Cessation
- 1970-11-11 AT AT1015070A patent/AT308860B/en not_active IP Right Cessation
- 1970-11-17 GB GB54534/70D patent/GB1293670A/en not_active Expired
- 1970-11-18 BG BG016089A patent/BG20138A3/en unknown
- 1970-11-25 NL NLAANVRAGE7017251,A patent/NL172504C/en not_active IP Right Cessation
- 1970-11-26 ZA ZA708029A patent/ZA708029B/en unknown
- 1970-11-26 BR BR224166/70A patent/BR7024166D0/en unknown
- 1970-12-03 FR FR7043478A patent/FR2070741B1/fr not_active Expired
- 1970-12-03 LU LU62172D patent/LU62172A1/xx unknown
- 1970-12-03 FI FI3263/70A patent/FI56601C/en active
- 1970-12-07 SE SE16544/70A patent/SE366190B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BR7024166D0 (en) | 1973-01-09 |
GB1293670A (en) | 1972-10-18 |
CH522995A (en) | 1972-05-15 |
FR2070741A1 (en) | 1971-09-17 |
DE1961217B2 (en) | 1972-10-12 |
FI56601C (en) | 1980-02-11 |
FR2070741B1 (en) | 1976-03-19 |
DE1961217A1 (en) | 1971-06-16 |
DE1961217C3 (en) | 1978-08-24 |
AT308860B (en) | 1973-07-25 |
SE366190B (en) | 1974-04-08 |
NL7017251A (en) | 1971-06-08 |
BE759888A (en) | 1971-06-04 |
ZA708029B (en) | 1971-08-25 |
LU62172A1 (en) | 1971-05-12 |
FI56601B (en) | 1979-10-31 |
BG20138A3 (en) | 1975-10-30 |
NL172504B (en) | 1983-04-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee |