FR2267604B1 - - Google Patents

Info

Publication number
FR2267604B1
FR2267604B1 FR7511426A FR7511426A FR2267604B1 FR 2267604 B1 FR2267604 B1 FR 2267604B1 FR 7511426 A FR7511426 A FR 7511426A FR 7511426 A FR7511426 A FR 7511426A FR 2267604 B1 FR2267604 B1 FR 2267604B1
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
FR7511426A
Other languages
French (fr)
Other versions
FR2267604A1 (US06265458-20010724-C00056.png
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2267604A1 publication Critical patent/FR2267604A1/fr
Application granted granted Critical
Publication of FR2267604B1 publication Critical patent/FR2267604B1/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 

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Electrophonic Musical Instruments (AREA)
FR7511426A 1974-04-13 1975-04-11 Expired FR2267604B1 (US06265458-20010724-C00056.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742418060 DE2418060B2 (de) 1974-04-13 1974-04-13 Schallaufnahme- und -wiedergabeeinrichtung

Publications (2)

Publication Number Publication Date
FR2267604A1 FR2267604A1 (US06265458-20010724-C00056.png) 1975-11-07
FR2267604B1 true FR2267604B1 (US06265458-20010724-C00056.png) 1981-02-13

Family

ID=5912897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7511426A Expired FR2267604B1 (US06265458-20010724-C00056.png) 1974-04-13 1975-04-11

Country Status (3)

Country Link
DE (1) DE2418060B2 (US06265458-20010724-C00056.png)
FR (1) FR2267604B1 (US06265458-20010724-C00056.png)
GB (1) GB1501468A (US06265458-20010724-C00056.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1200308A (en) * 1983-11-23 1986-02-04 Peter Fatovic Directional microphone assembly
AU2007231525A1 (en) * 2006-03-28 2007-10-04 Immersion Technology Property Limited Loudspeaker system with acoustic equalisation

Also Published As

Publication number Publication date
DE2418060A1 (de) 1975-10-16
DE2418060B2 (de) 1976-11-18
GB1501468A (en) 1978-02-15
FR2267604A1 (US06265458-20010724-C00056.png) 1975-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse