NL7205358A - - Google Patents
Info
- Publication number
- NL7205358A NL7205358A NL7205358A NL7205358A NL7205358A NL 7205358 A NL7205358 A NL 7205358A NL 7205358 A NL7205358 A NL 7205358A NL 7205358 A NL7205358 A NL 7205358A NL 7205358 A NL7205358 A NL 7205358A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1961217A DE1961217C3 (de) | 1969-12-05 | 1969-12-05 | Elektroakustischer Wandler, insbesondere Mikrofon für Fernsprechanlagen |
| DE2119911A DE2119911B2 (de) | 1971-04-23 | 1971-04-23 | Elektroakustischer Wandler, insbe sondere Mikrofon fur Fernsprechanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7205358A true NL7205358A (en:Method) | 1972-10-25 |
Family
ID=25758204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7205358A NL7205358A (en:Method) | 1969-12-05 | 1972-04-20 |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT318029B (en:Method) |
| CH (1) | CH535525A (en:Method) |
| NL (1) | NL7205358A (en:Method) |
-
1972
- 1972-03-29 CH CH471672A patent/CH535525A/de not_active IP Right Cessation
- 1972-04-17 AT AT336372A patent/AT318029B/de not_active IP Right Cessation
- 1972-04-20 NL NL7205358A patent/NL7205358A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH535525A (de) | 1973-03-31 |
| AT318029B (de) | 1974-09-25 |