NL7017251A - - Google Patents

Info

Publication number
NL7017251A
NL7017251A NL7017251A NL7017251A NL7017251A NL 7017251 A NL7017251 A NL 7017251A NL 7017251 A NL7017251 A NL 7017251A NL 7017251 A NL7017251 A NL 7017251A NL 7017251 A NL7017251 A NL 7017251A
Authority
NL
Netherlands
Application number
NL7017251A
Other versions
NL172504B (nl
NL172504C (nl
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.)
Filing date
Publication date
Application filed filed Critical
Publication of NL7017251A publication Critical patent/NL7017251A/xx
Publication of NL172504B publication Critical patent/NL172504B/xx
Application granted granted Critical
Publication of NL172504C publication Critical patent/NL172504C/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NLAANVRAGE7017251,A 1969-12-05 1970-11-25 Elektro-akoestische omzetter. NL172504C (nl)

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 (3)

Publication Number Publication Date
NL7017251A true NL7017251A (de) 1971-06-08
NL172504B NL172504B (nl) 1983-04-05
NL172504C NL172504C (nl) 1983-09-01

Family

ID=5753162

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7017251,A NL172504C (nl) 1969-12-05 1970-11-25 Elektro-akoestische omzetter.

Country Status (13)

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

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

Also Published As

Publication number Publication date
ZA708029B (en) 1971-08-25
CH522995A (de) 1972-05-15
LU62172A1 (de) 1971-05-12
FI56601B (fi) 1979-10-31
AT308860B (de) 1973-07-25
NL172504B (nl) 1983-04-05
NL172504C (nl) 1983-09-01
BR7024166D0 (pt) 1973-01-09
DE1961217C3 (de) 1978-08-24
FR2070741A1 (de) 1971-09-17
FI56601C (fi) 1980-02-11
DE1961217A1 (de) 1971-06-16
SE366190B (de) 1974-04-08
BG20138A3 (bg) 1975-10-30
BE759888A (fr) 1971-06-04
GB1293670A (en) 1972-10-18
FR2070741B1 (de) 1976-03-19
DE1961217B2 (de) 1972-10-12

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee