GB1557879A - Electro acoustic transducers - Google Patents

Electro acoustic transducers

Info

Publication number
GB1557879A
GB1557879A GB5049676A GB5049676A GB1557879A GB 1557879 A GB1557879 A GB 1557879A GB 5049676 A GB5049676 A GB 5049676A GB 5049676 A GB5049676 A GB 5049676A GB 1557879 A GB1557879 A GB 1557879A
Authority
GB
United Kingdom
Prior art keywords
acoustic transducers
electro acoustic
electro
transducers
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5049676A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rank Organization Ltd
Original Assignee
Rank Organization Ltd
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 by Rank Organization Ltd filed Critical Rank Organization Ltd
Priority to GB5049676A priority Critical patent/GB1557879A/en
Publication of GB1557879A publication Critical patent/GB1557879A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones
    • H04R7/127Non-planar diaphragms or cones dome-shaped
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/36Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means by using a single aperture of dimensions not greater than the shortest operating wavelength
GB5049676A 1976-12-03 1976-12-03 Electro acoustic transducers Expired GB1557879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5049676A GB1557879A (en) 1976-12-03 1976-12-03 Electro acoustic transducers

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB5049676A GB1557879A (en) 1976-12-03 1976-12-03 Electro acoustic transducers
DK536277A DK536277A (en) 1976-12-03 1977-12-02 Electroacoustic transducer
DE19772753790 DE2753790A1 (en) 1976-12-03 1977-12-02 Electro-acoustic transducers
FR7736325A FR2373205B1 (en) 1976-12-03 1977-12-02
NL7713409A NL7713409A (en) 1976-12-03 1977-12-04 Electro-acoustic converters.
SE7713750A SE417564B (en) 1976-12-03 1977-12-05 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
GB1557879A true GB1557879A (en) 1979-12-12

Family

ID=10456118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5049676A Expired GB1557879A (en) 1976-12-03 1976-12-03 Electro acoustic transducers

Country Status (6)

Country Link
DE (1) DE2753790A1 (en)
DK (1) DK536277A (en)
FR (1) FR2373205B1 (en)
GB (1) GB1557879A (en)
NL (1) NL7713409A (en)
SE (1) SE417564B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001087002A2 (en) * 2000-05-08 2001-11-15 Koninklijke Philips Electronics N.V. Loudspeaker having an acoustic panel and an electrical driver
WO2010019846A1 (en) * 2008-08-14 2010-02-18 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8104570U1 (en) * 1981-02-19 1981-07-23 Magnat Electronik Gmbh & Co Kg, 5000 Koeln, De Speakers, particularly spherical surface tweeter
DE3205731C2 (en) * 1981-02-19 1993-01-14 Magnat Electronik Gmbh & Co Kg, 5000 Koeln, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL77682C (en) * 1947-09-10
US3059720A (en) * 1959-07-27 1962-10-23 Ling Temco Vought Inc High frequency loudspeakers
DE2443655B1 (en) * 1974-09-12 1976-02-19 Wigo Widmann Soehne Gottlob Schallfuehrung for a spherical surface tweeter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001087002A2 (en) * 2000-05-08 2001-11-15 Koninklijke Philips Electronics N.V. Loudspeaker having an acoustic panel and an electrical driver
WO2001087002A3 (en) * 2000-05-08 2002-06-13 Koninkl Philips Electronics Nv Loudspeaker having an acoustic panel and an electrical driver
US7155021B2 (en) 2000-05-08 2006-12-26 Koninklijke Philips Electronics N.V. Loudspeaker having an acoustic panel and an electrical driver
WO2010019846A1 (en) * 2008-08-14 2010-02-18 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
JP2012500535A (en) * 2008-08-14 2012-01-05 ハーマン インターナショナル インダストリーズ インコーポレイテッド Phase plug and acoustic lens for direct radiating loudspeakers
US8181736B2 (en) 2008-08-14 2012-05-22 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
US8418802B2 (en) 2008-08-14 2013-04-16 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
US8672088B2 (en) 2008-08-14 2014-03-18 Harman International Industries, Inc. Phase plug and acoustic lens for direct radiating loudspeaker
CN104717586B (en) * 2008-08-14 2019-06-11 哈曼国际工业有限公司 Phase plug and acoustic lens for direct radiator type loudspeaker

Also Published As

Publication number Publication date
DK536277A (en) 1978-06-04
FR2373205B1 (en) 1983-01-14
SE7713750A (en) 1978-06-04
SE417564B (en) 1981-03-23
FR2373205A1 (en) 1978-06-30
DE2753790A1 (en) 1978-06-08
NL7713409A (en) 1978-06-06

Similar Documents

Publication Publication Date Title
AU497309B2 (en) Electrostatic transducer
CA1013463A (en) Replaceable acoustic transducer assembly
JPS5330316A (en) Sealed sound receiver
DE3062506D1 (en) An improved electro-acoustic transducer element
DE3063551D1 (en) Electro acoustic transducer with active dome
JPS53139586A (en) Capacitor transducer
AU513332B2 (en) Uterine sound
ZA7705530B (en) Improvements in or relating to electro-acoustic transducers
AU531209B2 (en) Acoustic transducer
GB2013032B (en) Electro-mechanical transducers
IE800002L (en) Piezoelectric transducer
GB1548053A (en) Speaker mounting
GB2011165B (en) Piezoelectric vibrator
JPS52120813A (en) Electronis sound generator system
EP0143383A3 (en) Electro-acoustic transducers
GB1553555A (en) Sound suppressor liners
ZA7701543B (en) Loudspeaker diaphragm
JPS5389728A (en) Loudspeaker unit
JPS52145011A (en) Structure for mounting disposable transducer
JPS51120212A (en) Acoustic communication head set
AU513326B2 (en) Electrostatic transducer
JPS5365718A (en) Sound wave generator
DD136915A5 (en) Speaker
JPS569898A (en) Sound alarm
GB2052918B (en) Piezoelectric transducers

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee