CH561997A5 - - Google Patents

Info

Publication number: CH561997A5
Authority: CH; Switzerland

Application number

CH415772A

Original Assignee

Siemens Ag

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.)

1971-04-23

Filing date

1972-03-21

Publication date

1975-05-15

1972-03-21 Application filed by Siemens Ag filed Critical Siemens Ag

1975-05-15 Publication of CH561997A5 publication Critical patent/CH561997A5/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
- 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

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Multimedia (AREA)
Piezo-Electric Transducers For Audible Bands (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Details Of Audible-Bandwidth Transducers (AREA)

CH415772A 1971-04-23 1972-03-21 CH561997A5 (xx)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2119912A DE2119912C3 (de)	1971-04-23	1971-04-23	Elektroakustischer Wandler

Publications (1)

Publication Number	Publication Date
CH561997A5 true CH561997A5 (xx)	1975-05-15

Family

ID=5805700

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH415772A CH561997A5 (xx)	1971-04-23	1972-03-21

Country Status (13)

Country	Link
AT (1)	AT309550B (xx)
BE (1)	BE782493A (xx)
BG (1)	BG20416A3 (xx)
BR (1)	BR7202421D0 (xx)
CH (1)	CH561997A5 (xx)
DE (1)	DE2119912C3 (xx)
FR (1)	FR2134021B1 (xx)
GB (1)	GB1348735A (xx)
IT (1)	IT957225B (xx)
LU (1)	LU65199A1 (xx)
NL (1)	NL7205093A (xx)
SE (1)	SE374475B (xx)
ZA (1)	ZA722574B (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2542552B1 (fr) *	1983-03-07	1986-04-11	Thomson Csf	Transducteur electroacoustique a diaphragme piezo-electrique
GB2164819B (en) *	1984-09-19	1988-09-28	Gibson Dawson Joseph	Microphone
US7065224B2 (en) *	2001-09-28	2006-06-20	Sonionmicrotronic Nederland B.V.	Microphone for a hearing aid or listening device with improved internal damping and foreign material protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE88657C (xx) *
FR1084139A (fr) *	1952-10-06	1955-01-17		Microphone à condensateur pour réception directionnelle
DE1437420C3 (de) *	1964-07-21	1978-06-22	Elly 1000 Berlin Neumann Geb. Kosak	Kondensator-Richtmikrophonkapsel

1971
- 1971-04-23 DE DE2119912A patent/DE2119912C3/de not_active Expired
1972
- 1972-03-21 CH CH415772A patent/CH561997A5/xx not_active IP Right Cessation
- 1972-04-05 GB GB1556672A patent/GB1348735A/en not_active Expired
- 1972-04-14 AT AT328872A patent/AT309550B/de not_active IP Right Cessation
- 1972-04-14 NL NL7205093A patent/NL7205093A/xx unknown
- 1972-04-17 ZA ZA722574A patent/ZA722574B/xx unknown
- 1972-04-20 LU LU65199D patent/LU65199A1/xx unknown
- 1972-04-20 BG BG020268A patent/BG20416A3/xx unknown
- 1972-04-20 BR BR2421/72A patent/BR7202421D0/pt unknown
- 1972-04-21 FR FR7214191A patent/FR2134021B1/fr not_active Expired
- 1972-04-21 BE BE782493A patent/BE782493A/xx unknown
- 1972-04-21 IT IT7328/72A patent/IT957225B/it active
- 1972-05-24 SE SE7205377A patent/SE374475B/xx unknown

Also Published As

Publication number	Publication date
NL7205093A (xx)	1972-10-25
FR2134021B1 (xx)	1974-12-20
GB1348735A (en)	1974-03-20
SE374475B (xx)	1975-03-03
AT309550B (de)	1973-08-27
IT957225B (it)	1973-10-10
BG20416A3 (bg)	1975-11-05
DE2119912C3 (de)	1974-12-12
BR7202421D0 (pt)	1973-06-28
DE2119912B2 (de)	1974-05-16
BE782493A (fr)	1972-10-23
DE2119912A1 (de)	1972-11-09
ZA722574B (en)	1973-01-31
FR2134021A1 (xx)	1972-12-01
LU65199A1 (xx)	1972-07-13

Publication	Publication Date	Title
ATA136472A (xx)	1973-12-15
AR196074A1 (xx)	1973-11-30
FR2134021A1 (xx)	1972-12-01
AU2658571A (xx)	1972-09-21
AU2691671A (xx)	1972-09-28
AU2952271A (xx)	1972-12-07
AU2894671A (xx)	1972-11-23
AU2941471A (xx)	1972-11-30
AU2742671A (xx)	1972-10-12
AU2485671A (xx)	1972-08-03
AU2684071A (xx)	1972-09-28
AU3005371A (xx)	1972-12-21
AU2564071A (xx)	1972-08-24
AU2473671A (xx)	1972-08-03
AU2836771A (xx)	1972-11-09
AU3038671A (xx)	1973-01-04
AU2503871A (xx)	1972-08-10
AU2837671A (xx)	1972-11-09
AU2577671A (xx)	1972-08-24
AU2588771A (xx)	1972-08-31
AU2654071A (xx)	1972-09-21
AU3025871A (xx)	1973-01-04
AU2669471A (xx)	1972-09-21
AU2456871A (xx)	1972-08-17
AU2684171A (xx)	1971-07-15

Legal Events

Date	Code	Title	Description
1978-11-15	PL	Patent ceased
2024-10-31	PL	Patent ceased