FR2260916B1 - - Google Patents

Info

Publication number
FR2260916B1
FR2260916B1 FR7404183A FR7404183A FR2260916B1 FR 2260916 B1 FR2260916 B1 FR 2260916B1 FR 7404183 A FR7404183 A FR 7404183A FR 7404183 A FR7404183 A FR 7404183A FR 2260916 B1 FR2260916 B1 FR 2260916B1
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
FR7404183A
Other languages
French (fr)
Other versions
FR2260916A1 (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.)
DUMEZ JOHAN
Original Assignee
DUMEZ JOHAN
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 DUMEZ JOHAN filed Critical DUMEZ JOHAN
Priority to FR7404183A priority Critical patent/FR2260916A1/fr
Publication of FR2260916A1 publication Critical patent/FR2260916A1/fr
Application granted granted Critical
Publication of FR2260916B1 publication Critical patent/FR2260916B1/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR7404183A 1974-02-07 1974-02-07 Loudspeaker directional enclosure - has diaphragm forming two separate parts for low and high frequency sounds Granted FR2260916A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7404183A FR2260916A1 (en) 1974-02-07 1974-02-07 Loudspeaker directional enclosure - has diaphragm forming two separate parts for low and high frequency sounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7404183A FR2260916A1 (en) 1974-02-07 1974-02-07 Loudspeaker directional enclosure - has diaphragm forming two separate parts for low and high frequency sounds

Publications (2)

Publication Number Publication Date
FR2260916A1 FR2260916A1 (en) 1975-09-05
FR2260916B1 true FR2260916B1 (zh) 1981-05-29

Family

ID=9134629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7404183A Granted FR2260916A1 (en) 1974-02-07 1974-02-07 Loudspeaker directional enclosure - has diaphragm forming two separate parts for low and high frequency sounds

Country Status (1)

Country Link
FR (1) FR2260916A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418990A1 (fr) * 1978-03-03 1979-09-28 Brothier Laboratoires Emetteur de son utilisant un haut-parleur
FR2609590B1 (fr) * 1986-04-21 1993-12-10 Bonnel Regis Le sous-baffle en mousse de plastique
GB2509711A (en) * 2013-01-09 2014-07-16 Pss Belgium Nv Selective or frequency-dependent acoustic damping
WO2018234212A1 (de) 2017-06-23 2018-12-27 Tenneco Gmbh Variabler lautsprecher für eine abgasanlage
DE102017113919A1 (de) 2017-06-23 2018-12-27 Tenneco Gmbh Variabler Lautsprecher für eine Abgasanlage

Also Published As

Publication number Publication date
FR2260916A1 (en) 1975-09-05

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Legal Events

Date Code Title Description
MD Transfer of rights in case of death
ST Notification of lapse