NL257376A - - Google Patents

Info

Publication number
NL257376A
NL257376A NL257376DA NL257376A NL 257376 A NL257376 A NL 257376A NL 257376D A NL257376D A NL 257376DA NL 257376 A NL257376 A NL 257376A
Authority
NL
Netherlands
Application number
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.)
Publication of NL257376A publication Critical patent/NL257376A/xx

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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
NL257376D 1959-10-29 NL257376A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US849627A US3073411A (en) 1959-10-29 1959-10-29 Acoustical apparatus

Publications (1)

Publication Number Publication Date
NL257376A true NL257376A (xx)

Family

ID=25306156

Family Applications (1)

Application Number Title Priority Date Filing Date
NL257376D NL257376A (xx) 1959-10-29

Country Status (5)

Country Link
US (1) US3073411A (xx)
CH (1) CH402075A (xx)
ES (1) ES262057A1 (xx)
GB (1) GB897621A (xx)
NL (1) NL257376A (xx)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518732U (xx) * 1974-07-05 1976-01-22
JPS51163934U (xx) * 1975-06-18 1976-12-27
JPS51163935U (xx) * 1975-06-18 1976-12-27
US4013846A (en) * 1975-08-28 1977-03-22 Minnesota Mining And Manufacturing Company Piston loudspeaker
DE3267630D1 (en) * 1981-12-24 1986-01-02 Eckehard Kort Magnetic system with annular air-gap, in particular for woofers
US5181252A (en) * 1987-12-28 1993-01-19 Bose Corporation High compliance headphone driving
CA2023142A1 (en) * 1989-08-23 1991-02-24 Roman Sapiejewski High compliance headphone driving
US6104825A (en) * 1997-08-27 2000-08-15 Eminent Technology Incorporated Planar magnetic transducer with distortion compensating diaphragm
US6929091B2 (en) * 2002-10-28 2005-08-16 Sound Advance Systems, Inc. Planar diaphragm loudspeaker and related methods
JP5265373B2 (ja) 2005-11-11 2013-08-14 フィテック システムズ リミテッド ノイズ消去イヤホン
KR100902895B1 (ko) * 2006-06-29 2009-06-15 엘지전자 주식회사 스피커
NZ584418A (en) * 2007-10-02 2012-12-21 Phitek Systems Ltd Component for noise reducing earphone
US20090307730A1 (en) * 2008-05-29 2009-12-10 Mark Donaldson Media enhancement module
US20110002474A1 (en) * 2009-01-29 2011-01-06 Graeme Colin Fuller Active Noise Reduction System Control
EP2226902A3 (en) * 2009-03-06 2013-03-13 Phitek Systems Limited In-flight entertainment system connector
US20110075331A1 (en) * 2009-05-04 2011-03-31 Nigel Greig Media Player Holder
US20110188668A1 (en) * 2009-09-23 2011-08-04 Mark Donaldson Media delivery system
US9818394B2 (en) * 2009-11-30 2017-11-14 Graeme Colin Fuller Realisation of controller transfer function for active noise cancellation
BR112012028245B1 (pt) 2010-05-17 2021-04-20 Phitek Systems, Ltd. unidade de suporte do módulo e unidade de exibição de vídeo
EP2471710A1 (en) 2010-11-15 2012-07-04 Nigel Greig Media distribution system
US9654854B2 (en) 2011-06-01 2017-05-16 Paul Darlington In-ear device incorporating active noise reduction
US10034086B2 (en) 2013-03-26 2018-07-24 Bose Corporation Headset porting
US9628917B2 (en) 2014-07-23 2017-04-18 Bose Corporation Sound producing system
USD789911S1 (en) * 2016-03-14 2017-06-20 Chris J. Katopis Earbud

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1097499A (en) * 1914-05-19 Lucy A Young Method of making acoustic diaphragms.
US728382A (en) * 1899-05-23 1903-05-19 John C English Diaphragm for machines for recording of reproducing sound or speech.
US1118345A (en) * 1913-08-07 1914-11-24 Harry W Hess Sound-box for talking-machines.
US1763780A (en) * 1926-06-18 1930-06-17 Samuel W Hatton Acoustic diaphragm
US1917309A (en) * 1931-04-10 1933-07-11 Siemens Ag Diaphragm for acoustic apparatus
US2531634A (en) * 1945-01-11 1950-11-28 Athol E N Lawrance Acoustical diaphragm with stiffening means
GB726780A (en) * 1952-01-19 1955-03-23 Cole E K Ltd Improvements in or relating to sound producing diaphragms

Also Published As

Publication number Publication date
CH402075A (de) 1965-11-15
US3073411A (en) 1963-01-15
ES262057A1 (es) 1960-12-16
GB897621A (en) 1962-05-30

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