BG20138A3 - Електроакустичен преобразувател по-специално микрофон за телефонни уредби - Google Patents

Електроакустичен преобразувател по-специално микрофон за телефонни уредби

Info

Publication number: BG20138A3
Authority: BG; Bulgaria
Prior art keywords: electro; acoustic transducer; telephone devices; particular microphone; microphone
Prior art date: 1969-12-05

Application number

BG016089A

Other languages

Bulgarian (bg)

English (en)

Inventor

Otto Bruennert

Hans Schierl

Original Assignee

Siemens Aktiengesellschaft

Priority date (The priority date 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 date listed.)

1969-12-05

Filing date

1970-11-18

Publication date

1975-10-30

1970-11-18 Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft

1975-10-30 Publication of BG20138A3 publication Critical patent/BG20138A3/xx

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)

BG016089A 1969-12-05 1970-11-18 Електроакустичен преобразувател по-специално микрофон за телефонни уредби BG20138A3 (bg)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE1961217A DE1961217C3 (de)	1969-12-05	1969-12-05	Elektroakustischer Wandler, insbesondere Mikrofon für Fernsprechanlagen

Publications (1)

Publication Number	Publication Date
BG20138A3 true BG20138A3 (bg)	1975-10-30

Family

ID=5753162

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BG016089A BG20138A3 (bg)	1969-12-05	1970-11-18	Електроакустичен преобразувател по-специално микрофон за телефонни уредби

Country Status (13)

Country	Link
AT (1)	AT308860B (xx)
BE (1)	BE759888A (xx)
BG (1)	BG20138A3 (xx)
BR (1)	BR7024166D0 (xx)
CH (1)	CH522995A (xx)
DE (1)	DE1961217C3 (xx)
FI (1)	FI56601C (xx)
FR (1)	FR2070741B1 (xx)
GB (1)	GB1293670A (xx)
LU (1)	LU62172A1 (xx)
NL (1)	NL172504C (xx)
SE (1)	SE366190B (xx)
ZA (1)	ZA708029B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2119911B2 (de) *	1971-04-23	1973-11-15	Siemens Ag, 1000 Berlin U. 8000 Muenchen	Elektroakustischer Wandler, insbe sondere Mikrofon fur Fernsprechanlagen
DE2831411C2 (de) *	1978-07-17	1983-10-06	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Elektroakustischer Wandler mit mit piezoelektrischer Schicht versehener Membran
DE2937922A1 (de) *	1979-09-19	1981-04-09	Siemens AG, 1000 Berlin und 8000 München	Piezoelektrischer wandler
DE3005708C2 (de) *	1980-02-15	1984-08-30	Siemens AG, 1000 Berlin und 8000 München	Wandlerplatte für piezoelektrische Wandler
DE3425176A1 (de) *	1984-07-09	1986-02-20	Fernsprech Und Signalbau Kg Sc	Piezoelektrische fernsprechkapsel
DE3425173A1 (de) *	1984-07-09	1986-01-16	Fernsprech- und Signalbaugesellschaft mbH Schüler & Vershoven, 4300 Essen	Piezoelektrische fernsprechkapsel
DE3518819A1 (de) *	1985-05-24	1986-11-27	Siemens AG, 1000 Berlin und 8000 München	Elektroakustischer wandler
DE3609461A1 (de) *	1986-03-20	1987-09-24	Siemens Ag	Elektroakustischer wandler
DE8712014U1 (de) *	1987-09-04	1987-10-29	Chen, Ding Pang, Taipeh/T'ai-pei	Umfangselement für einen Lautsprecher
CN1015289B (zh) *	1988-08-10	1992-01-01	西门子公司	电声转换器
CN114390405B (zh) *	2021-12-10	2023-11-28	深圳羽声电子有限公司	一种振动膜及使用其的音箱

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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 (fr) *	1961-09-29	1963-08-02	Siemens Ag	Transformateur électro-acoustique
DE1288146B (de) *	1962-10-31	1969-01-30	Siemens Ag	Elektroakustischer Wandler

0
- BE BE759888D patent/BE759888A/xx not_active IP Right Cessation
1969
- 1969-12-05 DE DE1961217A patent/DE1961217C3/de not_active Expired
1970
- 1970-11-05 CH CH1639370A patent/CH522995A/de not_active IP Right Cessation
- 1970-11-11 AT AT1015070A patent/AT308860B/de not_active IP Right Cessation
- 1970-11-17 GB GB54534/70D patent/GB1293670A/en not_active Expired
- 1970-11-18 BG BG016089A patent/BG20138A3/xx unknown
- 1970-11-25 NL NLAANVRAGE7017251,A patent/NL172504C/xx not_active IP Right Cessation
- 1970-11-26 BR BR224166/70A patent/BR7024166D0/pt unknown
- 1970-11-26 ZA ZA708029A patent/ZA708029B/xx unknown
- 1970-12-03 FR FR7043478A patent/FR2070741B1/fr not_active Expired
- 1970-12-03 FI FI3263/70A patent/FI56601C/fi active
- 1970-12-03 LU LU62172D patent/LU62172A1/xx unknown
- 1970-12-07 SE SE16544/70A patent/SE366190B/xx unknown

Also Published As

Publication number	Publication date
LU62172A1 (xx)	1971-05-12
FI56601B (fi)	1979-10-31
FR2070741B1 (xx)	1976-03-19
NL172504B (nl)	1983-04-05
NL172504C (nl)	1983-09-01
GB1293670A (en)	1972-10-18
DE1961217B2 (de)	1972-10-12
CH522995A (de)	1972-05-15
SE366190B (xx)	1974-04-08
FR2070741A1 (xx)	1971-09-17
BE759888A (fr)	1971-06-04
DE1961217A1 (de)	1971-06-16
FI56601C (fi)	1980-02-11
DE1961217C3 (de)	1978-08-24
BR7024166D0 (pt)	1973-01-09
NL7017251A (xx)	1971-06-08
ZA708029B (en)	1971-08-25
AT308860B (de)	1973-07-25

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