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ES262057A1 - Acoustical apparatus - Google Patents

Acoustical apparatus

Info

Publication number
ES262057A1
ES262057A1 ES0262057A ES262057A ES262057A1 ES 262057 A1 ES262057 A1 ES 262057A1 ES 0262057 A ES0262057 A ES 0262057A ES 262057 A ES262057 A ES 262057A ES 262057 A1 ES262057 A1 ES 262057A1
Authority
ES
Spain
Prior art keywords
protuberances
sheet
acoustical apparatus
casually
stiffen
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
ES0262057A
Other languages
Spanish (es)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of ES262057A1 publication Critical patent/ES262057A1/en
Expired legal-status Critical Current

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)

Abstract

Improvements introduced in the manufacture of vibratable elements comprising at least one thin sheet of material provided with protuberances, characterized by the fact that such protuberances are arranged casually and asymmetrically in groups or clusters in at least a part of a sheet of material, to stiffen the element without defining vibration nodes in it. (Machine-translation by Google Translate, not legally binding)
ES0262057A 1959-10-29 1960-10-28 Acoustical apparatus Expired ES262057A1 (en)

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
ES262057A1 true ES262057A1 (en) 1960-12-16

Family

ID=25306156

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0262057A Expired ES262057A1 (en) 1959-10-29 1960-10-28 Acoustical apparatus

Country Status (5)

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

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518732U (en) * 1974-07-05 1976-01-22
JPS51163934U (en) * 1975-06-18 1976-12-27
JPS51163935U (en) * 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
US8571227B2 (en) 2005-11-11 2013-10-29 Phitek Systems Limited Noise cancellation earphone
KR100902895B1 (en) * 2006-06-29 2009-06-15 엘지전자 주식회사 speaker
JP2009153103A (en) * 2007-10-02 2009-07-09 Phitek Systems Ltd Component for noise reducing earphone
EP2129114A3 (en) * 2008-05-29 2011-11-02 Phitek Systems Limited 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
WO2011146429A1 (en) 2010-05-17 2011-11-24 Thales Avionics, Inc. Airline passenger seat modular user interface device
US9487295B2 (en) 2010-11-15 2016-11-08 William James Sim Vehicle media distribution system using optical transmitters
CN103748903B (en) 2011-06-01 2017-02-22 菲泰克系统有限公司 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
NL257376A (en)
GB897621A (en) 1962-05-30
US3073411A (en) 1963-01-15
CH402075A (en) 1965-11-15

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