FR636818A - Perfectionnements aux dispositifs acoustiques - Google Patents

Perfectionnements aux dispositifs acoustiques

Info

Publication number
FR636818A
FR636818A FR636818DA FR636818A FR 636818 A FR636818 A FR 636818A FR 636818D A FR636818D A FR 636818DA FR 636818 A FR636818 A FR 636818A
Authority
FR
France
Prior art keywords
acoustic devices
acoustic
devices
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
Other languages
English (en)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22427925&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR636818(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR636818A publication Critical patent/FR636818A/fr
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
    • 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR636818D 1926-08-04 1927-06-29 Perfectionnements aux dispositifs acoustiques Expired FR636818A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US127023A US1707545A (en) 1926-08-04 1926-08-04 Acoustic device

Publications (1)

Publication Number Publication Date
FR636818A true FR636818A (fr) 1928-04-17

Family

ID=22427925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR636818D Expired FR636818A (fr) 1926-08-04 1927-06-29 Perfectionnements aux dispositifs acoustiques

Country Status (6)

Country Link
US (1) US1707545A (fr)
BE (1) BE344484A (fr)
DE (1) DE540540C (fr)
FR (1) FR636818A (fr)
GB (1) GB275571A (fr)
NL (1) NL22539C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968466C (de) * 1952-02-23 1958-02-20 Siemens Ag Druckkammerlautsprecher, insbesondere mit Kalottenmembran

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157741A (en) * 1978-08-16 1979-06-12 Goldwater Alan J Phase plug
US4310065A (en) * 1979-05-11 1982-01-12 Chromalloy Electronics Corporation Radial horn
US4718517A (en) * 1986-02-27 1988-01-12 Electro-Voice, Inc. Loudspeaker and acoustic transformer therefor
US4882562A (en) * 1986-03-11 1989-11-21 Turbosound Limited Adaptor for coupling plural compression drivers to a common horn
GB0202284D0 (en) 2002-01-31 2002-03-20 Martin Audio Ltd Directional loudspeaker
US20060034475A1 (en) * 2004-08-16 2006-02-16 Geddes Earl R Compression driver plug
JP5268203B2 (ja) 2008-08-14 2013-08-21 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 直接放射ラウドスピーカのためのフェイズプラグおよび音響レンズ
FR2955445B1 (fr) 2010-01-15 2013-06-07 Phl Audio Transducteur electrodynamique a dome et suspension interne
FR2955446B1 (fr) 2010-01-15 2015-06-05 Phl Audio Transducteur electrodynamique a dome et suspension flottante
FR2955444B1 (fr) 2010-01-15 2012-08-03 Phl Audio Systeme de haut-parleur coaxial a chambre de compression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968466C (de) * 1952-02-23 1958-02-20 Siemens Ag Druckkammerlautsprecher, insbesondere mit Kalottenmembran

Also Published As

Publication number Publication date
BE344484A (fr)
GB275571A (en) 1928-07-12
DE540540C (de) 1932-01-09
NL22539C (fr)
US1707545A (en) 1929-04-02

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