NL281021A - - Google Patents

Info

Publication number
NL281021A
NL281021A NL281021DA NL281021A NL 281021 A NL281021 A NL 281021A NL 281021D A NL281021D A NL 281021DA NL 281021 A NL281021 A NL 281021A
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 NL281021A publication Critical patent/NL281021A/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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/027—Diaphragms comprising metallic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NL281021D 1961-07-19 NL281021A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26143/61A GB1002765A (en) 1961-07-19 1961-07-19 Improvements in and relating to electro-acoustic apparatus

Publications (1)

Publication Number Publication Date
NL281021A true NL281021A (de)

Family

ID=10239074

Family Applications (1)

Application Number Title Priority Date Filing Date
NL281021D NL281021A (de) 1961-07-19

Country Status (4)

Country Link
US (1) US3152661A (de)
DE (1) DE1224786B (de)
GB (1) GB1002765A (de)
NL (1) NL281021A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282203A1 (fr) * 1974-08-12 1976-03-12 Rehde Weber Haut-parleur
JPS5282374U (de) * 1975-12-16 1977-06-20
TW200746868A (en) * 2006-02-24 2007-12-16 Yamaha Corp Condenser microphone
CN101601308B (zh) * 2007-01-12 2013-03-13 萨姆森科技公司 扬声器马达和扬声器
USD783577S1 (en) * 2015-09-16 2017-04-11 Stillwater Designs And Audio, Inc. Subwoofer
DK178943B1 (en) * 2015-11-03 2017-06-19 Fibona Acoustics Aps Loudspeaker membrane and low-profile loudspeaker
EP3166333A1 (de) 2015-11-03 2017-05-10 Fibona Acoustics ApS Lautsprechermembran und lautsprecher mit niedrigem profil
JP1602130S (de) * 2017-08-08 2018-04-16
USD881846S1 (en) * 2017-12-06 2020-04-21 Tymphany Acoustic Technology (Huizhou) Co., Ltd. Vibration diaphragm for loudspeaker
USD966235S1 (en) * 2019-08-23 2022-10-11 Tymphany Acoustic Technology Limited Waveguide

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918422A (en) * 1926-06-22 1933-07-18 United Res Corp Sound-reproducing device
US1832608A (en) * 1930-11-12 1931-11-17 Alexander I Abrahams Diaphragm for acoustic devices
US1990066A (en) * 1932-11-15 1935-02-05 Emi Ltd Diaphragm for acoustic devices
DE900830C (de) * 1934-12-03 1954-01-04 Tobis Tonbild Syndikat G M B H Elektrostatisches Mikrophon mit gespannter und mehrfach unterstuetzter Membran
GB469445A (en) * 1936-01-21 1937-07-21 Hawley Products Ltd Improvements in cones for loudspeakers
FR831589A (fr) * 1937-01-07 1938-09-08 Telefunken Gmbh Perfectionnements aux membranes métalliques pour dispositifs acoustiques
DE677210C (de) * 1937-01-08 1939-06-21 Telefunken Gmbh Formmembran aus Metall
US2531634A (en) * 1945-01-11 1950-11-28 Athol E N Lawrance Acoustical diaphragm with stiffening means
GB596869A (en) * 1945-02-20 1948-01-13 Athol Ernest Neville Lawrance Improvements in or relating to acoustical diaphragms
US2663023A (en) * 1949-07-06 1953-12-22 Lawrence R Thorpe Knot form
DE835757C (de) * 1949-10-26 1952-04-03 Klangfilm G M B H Kalottenmembran fuer Trichterlautsprecher
US2869266A (en) * 1954-10-04 1959-01-20 Turco Products Inc Method for removing metal from the surface of a metal object
US3075895A (en) * 1960-02-15 1963-01-29 Gen Dev Corp Method of preparing plates for electromechanical engraving

Also Published As

Publication number Publication date
US3152661A (en) 1964-10-13
DE1224786B (de) 1966-09-15
GB1002765A (en) 1965-08-25

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