FR2448272B3 - - Google Patents

Info

Publication number
FR2448272B3
FR2448272B3 FR7902559A FR7902559A FR2448272B3 FR 2448272 B3 FR2448272 B3 FR 2448272B3 FR 7902559 A FR7902559 A FR 7902559A FR 7902559 A FR7902559 A FR 7902559A FR 2448272 B3 FR2448272 B3 FR 2448272B3
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
FR7902559A
Other languages
French (fr)
Other versions
FR2448272A1 (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.)
Bose Corp
Original Assignee
Bose Corp
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 Bose Corp filed Critical Bose Corp
Publication of FR2448272A1 publication Critical patent/FR2448272A1/fr
Application granted granted Critical
Publication of FR2448272B3 publication Critical patent/FR2448272B3/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • 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
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR7902559A 1979-01-05 1979-01-31 Systeme de haut-parleurs a haut rendement Granted FR2448272A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7900066A NL7900066A (nl) 1979-01-05 1979-01-05 Luidsprekerinrichting met verbeterde lage-tonenluid- sprekerefficieentie.

Publications (2)

Publication Number Publication Date
FR2448272A1 FR2448272A1 (fr) 1980-08-29
FR2448272B3 true FR2448272B3 (da) 1981-10-16

Family

ID=19832399

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902559A Granted FR2448272A1 (fr) 1979-01-05 1979-01-31 Systeme de haut-parleurs a haut rendement

Country Status (4)

Country Link
CA (1) CA1110176A (da)
DE (1) DE2901021A1 (da)
FR (1) FR2448272A1 (da)
NL (1) NL7900066A (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501719A (nl) * 1985-06-14 1987-01-02 Philips Nv Basreflex luidsprekersysteem.
CN103686555B (zh) * 2013-11-19 2017-01-11 歌尔股份有限公司 微型扬声器模组和增强其频率响应的方法以及电子设备

Also Published As

Publication number Publication date
CA1110176A (en) 1981-10-06
DE2901021A1 (de) 1980-07-24
NL7900066A (nl) 1980-07-08
FR2448272A1 (fr) 1980-08-29

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Legal Events

Date Code Title Description
ST Notification of lapse