FR2365266B1 - - Google Patents

Info

Publication number
FR2365266B1
FR2365266B1 FR7720382A FR7720382A FR2365266B1 FR 2365266 B1 FR2365266 B1 FR 2365266B1 FR 7720382 A FR7720382 A FR 7720382A FR 7720382 A FR7720382 A FR 7720382A FR 2365266 B1 FR2365266 B1 FR 2365266B1
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
FR7720382A
Other languages
French (fr)
Other versions
FR2365266A1 (fr
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.)
Elektroakusztikai Gyar
Original Assignee
Elektroakusztikai Gyar
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 Elektroakusztikai Gyar filed Critical Elektroakusztikai Gyar
Publication of FR2365266A1 publication Critical patent/FR2365266A1/fr
Application granted granted Critical
Publication of FR2365266B1 publication Critical patent/FR2365266B1/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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H04R1/347—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers for obtaining a phase-shift between the front and back acoustic wave

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR7720382A 1976-09-15 1977-07-01 Radiateur acoustique a caracteristique directive en forme de cardioide Granted FR2365266A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU76EE2441A HU173844B (hu) 1976-09-15 1976-09-15 Kardiodnyj zvukovoj izluchatel'

Publications (2)

Publication Number Publication Date
FR2365266A1 FR2365266A1 (fr) 1978-04-14
FR2365266B1 true FR2365266B1 (es) 1980-03-21

Family

ID=10995695

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720382A Granted FR2365266A1 (fr) 1976-09-15 1977-07-01 Radiateur acoustique a caracteristique directive en forme de cardioide

Country Status (9)

Country Link
AT (1) AT360602B (es)
CS (1) CS244103B2 (es)
DD (1) DD131059A5 (es)
FR (1) FR2365266A1 (es)
HU (1) HU173844B (es)
IT (1) IT1116791B (es)
PL (1) PL110720B1 (es)
SU (1) SU786940A3 (es)
YU (1) YU40676B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI823540A0 (fi) * 1982-10-18 1982-10-18 Polarpro Oy Hoegtalare
EP1737266B1 (en) * 2004-04-13 2013-05-15 Panasonic Corporation Speaker device

Also Published As

Publication number Publication date
PL110720B1 (en) 1980-07-31
FR2365266A1 (fr) 1978-04-14
HU173844B (hu) 1979-09-28
IT1116791B (it) 1986-02-10
ATA396977A (de) 1980-06-15
CS244103B2 (en) 1986-07-17
AT360602B (de) 1981-01-26
SU786940A3 (ru) 1980-12-07
YU155677A (en) 1982-06-30
DD131059A5 (de) 1978-05-24
YU40676B (en) 1986-04-30
PL198784A1 (pl) 1978-03-28

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Legal Events

Date Code Title Description
ST Notification of lapse