FR1572648A - - Google Patents

Info

Publication number
FR1572648A
FR1572648A FR1572648DA FR1572648A FR 1572648 A FR1572648 A FR 1572648A FR 1572648D A FR1572648D A FR 1572648DA FR 1572648 A FR1572648 A FR 1572648A
Authority
FR
France
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
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 filed Critical
Application granted granted Critical
Publication of FR1572648A publication Critical patent/FR1572648A/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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
FR1572648D 1968-05-04 1968-06-18 Expired FR1572648A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681762237 DE1762237C3 (de) 1968-05-04 1968-05-04 Lautsprecheranlage, insbesondere für die Niederfrequenz-Tonwiedergabe

Publications (1)

Publication Number Publication Date
FR1572648A true FR1572648A (fr) 1969-06-27

Family

ID=5696936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1572648D Expired FR1572648A (fr) 1968-05-04 1968-06-18

Country Status (3)

Country Link
CH (1) CH480769A (fr)
DE (1) DE1762237C3 (fr)
FR (1) FR1572648A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142604A (en) * 1976-09-15 1979-03-06 Smith Todd G Speaker structure
EP0162049A1 (fr) * 1983-01-28 1985-11-27 Krister Amnéus Dispositif pour systemes acoustiques
DE3920041C1 (fr) * 1989-06-20 1990-12-06 Amneus Engineering, Vaellingby, Se
DE3920060A1 (de) * 1989-06-20 1991-01-03 Mb Electronic Gmbh Elektroakustische lautsprechervorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885024A (en) * 1959-05-05 Loudspeaker cabinets
US2065751A (en) * 1935-12-31 1936-12-29 Rca Corp Acoustic resistance device
GB496619A (en) * 1937-01-23 1938-12-02 Philips Nv Improvements in loudspeakers
DE1074651B (de) * 1956-03-08 1960-02-04 Deutsche Post Betnebslaboratorium fur Rundfunk und Fernsehen Ber Im Adlershof Anordnung zur Er zielung der Erweiterung des Frequenz bereiches in Richtung der tieferen Frc quenzen bei akustischen Strahlern
DE1275136B (de) * 1965-03-05 1968-08-14 Akg Akustische Kino Geraete Elektrodynamisches Richtmikrophon mit phasendrehendem akustischen Laufzeitglied vom LR-Typ

Also Published As

Publication number Publication date
DE1762237B2 (fr) 1980-01-03
DE1762237C3 (de) 1983-12-08
CH480769A (de) 1969-10-31
DE1762237A1 (de) 1970-04-23

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Legal Events

Date Code Title Description
ST Notification of lapse