FR2262893B1 - - Google Patents

Info

Publication number
FR2262893B1
FR2262893B1 FR7505835A FR7505835A FR2262893B1 FR 2262893 B1 FR2262893 B1 FR 2262893B1 FR 7505835 A FR7505835 A FR 7505835A FR 7505835 A FR7505835 A FR 7505835A FR 2262893 B1 FR2262893 B1 FR 2262893B1
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
FR7505835A
Other languages
French (fr)
Other versions
FR2262893A1 (
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.)
ALLISON ACOUSTICS Inc
Original Assignee
ALLISON ACOUSTICS 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
Application filed by ALLISON ACOUSTICS Inc filed Critical ALLISON ACOUSTICS Inc
Publication of FR2262893A1 publication Critical patent/FR2262893A1/fr
Application granted granted Critical
Publication of FR2262893B1 publication Critical patent/FR2262893B1/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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers

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)
FR7505835A 1974-03-01 1975-02-25 Expired FR2262893B1 ( )

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44706574A 1974-03-01 1974-03-01

Publications (2)

Publication Number Publication Date
FR2262893A1 FR2262893A1 ( ) 1975-09-26
FR2262893B1 true FR2262893B1 ( ) 1982-10-01

Family

ID=23774870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7505835A Expired FR2262893B1 ( ) 1974-03-01 1975-02-25

Country Status (10)

Country Link
JP (1) JPS601798B2 ( )
BE (1) BE825962A ( )
CA (1) CA1012895A ( )
CH (1) CH591198A5 ( )
DE (1) DE2507377A1 ( )
ES (1) ES435177A1 ( )
FR (1) FR2262893B1 ( )
GB (1) GB1500199A ( )
IT (1) IT1030246B ( )
NL (1) NL7502223A ( )

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55144475U ( ) * 1979-04-02 1980-10-16
CN103796129A (zh) * 2012-11-05 2014-05-14 曾山 一种同轴线阵列音箱
CN104113800B (zh) * 2014-07-25 2018-07-27 无锡杰夫电声股份有限公司 具有高音补偿的哑铃式倒相音箱

Also Published As

Publication number Publication date
AU7827275A (en) 1976-08-19
FR2262893A1 ( ) 1975-09-26
BE825962A (fr) 1975-06-16
IT1030246B (it) 1979-03-30
ES435177A1 (es) 1976-12-01
CA1012895A (en) 1977-06-28
GB1500199A (en) 1978-02-08
JPS50122925A ( ) 1975-09-26
DE2507377A1 (de) 1975-09-04
CH591198A5 ( ) 1977-09-15
NL7502223A (nl) 1975-09-03
JPS601798B2 (ja) 1985-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse