ATA882A - Anordnung zur frequenzgangverbesserung von piezoelektrischen mikrophonen in fernsprechern - Google Patents
Anordnung zur frequenzgangverbesserung von piezoelektrischen mikrophonen in fernsprechernInfo
- Publication number
- ATA882A ATA882A AT882A AT882A ATA882A AT A882 A ATA882 A AT A882A AT 882 A AT882 A AT 882A AT 882 A AT882 A AT 882A AT A882 A ATA882 A AT A882A
- Authority
- AT
- Austria
- Prior art keywords
- telephones
- improving
- arrangement
- frequency speed
- piezoelectric microphones
- 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
- 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
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813107344 DE3107344A1 (de) | 1981-02-26 | 1981-02-26 | Anordnung zur frequenzgangverbesserung von elektroakustischen wandlern |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA882A true ATA882A (de) | 1982-12-15 |
AT371966B AT371966B (de) | 1983-08-25 |
Family
ID=6125863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT882A AT371966B (de) | 1981-02-26 | 1982-01-04 | Anordnung zur frequenzgangverbesserung von piezoelektrischen mikrophonen in fernsprechern |
Country Status (5)
Country | Link |
---|---|
AR (1) | AR226002A1 (de) |
AT (1) | AT371966B (de) |
AU (1) | AU538735B2 (de) |
BR (1) | BR8200967A (de) |
DE (1) | DE3107344A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3232177A1 (de) * | 1982-08-30 | 1984-03-01 | Siemens AG, 1000 Berlin und 8000 München | Piezoelektrischer wandler |
DE3335431A1 (de) * | 1983-03-18 | 1984-09-20 | Siemens AG, 1000 Berlin und 8000 München | Wandlerplatte fuer piezoelektrische wandler und vorrichtung zu deren herstellung |
DE4117598C2 (de) * | 1991-05-29 | 1993-12-16 | Fernsprech Und Signalbau Gmbh | Fernsprechapparat |
AT400910B (de) * | 1994-06-16 | 1996-04-25 | Akg Akustische Kino Geraete | Akustischer widerstand, insbesondere für elektroakustische wandler |
RU2694785C1 (ru) * | 2018-01-31 | 2019-07-16 | Общество с ограниченной ответственностью "Аэрофон" | Электроакустический преобразователь |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2831411C2 (de) * | 1978-07-17 | 1983-10-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Elektroakustischer Wandler mit mit piezoelektrischer Schicht versehener Membran |
-
1981
- 1981-02-26 DE DE19813107344 patent/DE3107344A1/de active Granted
-
1982
- 1982-01-04 AT AT882A patent/AT371966B/de not_active IP Right Cessation
- 1982-02-12 AR AR28842782A patent/AR226002A1/es active
- 1982-02-25 BR BR8200967A patent/BR8200967A/pt unknown
- 1982-02-25 AU AU80909/82A patent/AU538735B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
BR8200967A (pt) | 1983-02-08 |
DE3107344A1 (de) | 1982-11-18 |
AU8090982A (en) | 1982-09-02 |
DE3107344C2 (de) | 1989-03-16 |
AT371966B (de) | 1983-08-25 |
AR226002A1 (es) | 1982-05-14 |
AU538735B2 (en) | 1984-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee | ||
ELJ | Ceased due to non-payment of the annual fee |