EP0007569A1 - Lautsprecherbox - Google Patents

Lautsprecherbox Download PDF

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Publication number
EP0007569A1
EP0007569A1 EP79102520A EP79102520A EP0007569A1 EP 0007569 A1 EP0007569 A1 EP 0007569A1 EP 79102520 A EP79102520 A EP 79102520A EP 79102520 A EP79102520 A EP 79102520A EP 0007569 A1 EP0007569 A1 EP 0007569A1
Authority
EP
European Patent Office
Prior art keywords
kinds
compartments
speaker
front face
compartment
Prior art date
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.)
Granted
Application number
EP79102520A
Other languages
English (en)
French (fr)
Other versions
EP0007569B1 (de
Inventor
Antoine Grootaers
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
Priority claimed from BE189523A external-priority patent/BE869304A/xx
Application filed by Individual filed Critical Individual
Priority to AT79102520T priority Critical patent/ATE7349T1/de
Publication of EP0007569A1 publication Critical patent/EP0007569A1/de
Application granted granted Critical
Publication of EP0007569B1 publication Critical patent/EP0007569B1/de
Expired legal-status Critical Current

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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
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • 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 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band

Definitions

  • This Invention relates to a New Sound Reproduction System, which employs on the front face a coaxial mounting of four strike-medium speakers, inclined at 2I ° placed symmetrically all around on a shape of a convex pyramid to which the central point (the axis) includes a fifth speaker for high frequencies whose dome and reflector in granular finish are treated with paraffin (see fig.I).
  • This set has a very large dispersion thanks to a central acoustic divider in the form of two superimposed pyramid trunks, of which that of the smaller end is made of glass or granulated crystal, while the other trunk is covered with granulated carbide (see fig. 2.5.).
  • the system for adjusting the interior sound pressure with recovery consists of each compartment being divided by a rectangular polyester foam plate provided with two openings towards the corners at the end (see fig. 1.4).
  • the two outward corners of each compartment are transformed into two triangular tunnels (see fig.1.6), which return part of the sound pressure towards the two openings placed in the two front corners (see fig.1.2), while- that the other part of the sound pressure will reinforce the rearward repair by an opening at the end of each compartment which is placed in the center of the rear panel and separated from the other three openings by a crossed divider (see fig.3.7 and 8).
  • the rear panel as well as the four faces of the front convex pyramid, plus the four cones are of a granulated structure and covered with a mixture of pure bitumen-aluminum-carbon and asbestos, while the central domes (in bakelite ) of the four speakers are treated with a granulated pure carbon finish.
  • This invention aims to make a fundamentally valid design, first by a concentric inclined location, in same time in all directions to avoid any musical confusion while respecting the balance between direct and reflected sound; with a specific natural transparency and timbre and without listening fatigue, as well as its total absence of audible resonance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
EP79102520A 1978-07-27 1979-07-18 Lautsprecherbox Expired EP0007569B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79102520T ATE7349T1 (de) 1978-07-27 1979-07-18 Lautsprecherbox.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE189523A BE869304A (fr) 1978-07-27 1978-07-27 Nouveau systeme de reproduction sonore
BE189523 1978-07-27
BE196039 1979-06-29
BE0/196039A BE877364R (fr) 1978-07-27 1979-06-29 Nouveau systeme de reproduction sonore

Publications (2)

Publication Number Publication Date
EP0007569A1 true EP0007569A1 (de) 1980-02-06
EP0007569B1 EP0007569B1 (de) 1984-05-02

Family

ID=25650916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102520A Expired EP0007569B1 (de) 1978-07-27 1979-07-18 Lautsprecherbox

Country Status (3)

Country Link
EP (1) EP0007569B1 (de)
BE (1) BE877364R (de)
DE (1) DE2966953D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963495A (en) * 1984-10-05 1990-10-16 Genentech, Inc. Secretion of heterologous proteins
EP0503611A1 (de) * 1991-03-15 1992-09-16 Nokia (Deutschland) GmbH Doppel-Hochtonkalotten-Lautsprecher
ITTO20100854A1 (it) * 2010-10-21 2012-04-22 Dario Freda Dispositivo diffusore di suoni da palcoscenico
GB2522055A (en) * 2014-01-11 2015-07-15 Matthew James Dobson Loudspeaker system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792069A (en) * 1952-04-21 1957-05-14 Jr Edward J Gately Loud speaker cabinet including a horn
FR2076749A5 (de) * 1970-01-27 1971-10-15 Bouyer Paul
FR2174445A5 (de) * 1972-02-29 1973-10-12 Frarin Pierre
DE2251178A1 (de) * 1970-10-23 1974-05-09 Hans Buerk Lautsprecheranordnung
BE815469A (fr) * 1974-05-24 1974-11-25 Nouveau systeme de reproduction sonore.
DE2336416A1 (de) * 1970-08-24 1975-01-30 Karl Otto Poensgen Hifi-lautsprecheranordnung
DE2456844A1 (de) * 1974-07-25 1976-08-12 Karl Otto Poensgen Wiedergabeklangkoerper mit lautsprecheranordnungen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632055A (en) * 1949-04-18 1953-03-17 John E Parker Loud speaker system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792069A (en) * 1952-04-21 1957-05-14 Jr Edward J Gately Loud speaker cabinet including a horn
FR2076749A5 (de) * 1970-01-27 1971-10-15 Bouyer Paul
DE2336416A1 (de) * 1970-08-24 1975-01-30 Karl Otto Poensgen Hifi-lautsprecheranordnung
DE2251178A1 (de) * 1970-10-23 1974-05-09 Hans Buerk Lautsprecheranordnung
FR2174445A5 (de) * 1972-02-29 1973-10-12 Frarin Pierre
BE815469A (fr) * 1974-05-24 1974-11-25 Nouveau systeme de reproduction sonore.
DE2456844A1 (de) * 1974-07-25 1976-08-12 Karl Otto Poensgen Wiedergabeklangkoerper mit lautsprecheranordnungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963495A (en) * 1984-10-05 1990-10-16 Genentech, Inc. Secretion of heterologous proteins
EP0503611A1 (de) * 1991-03-15 1992-09-16 Nokia (Deutschland) GmbH Doppel-Hochtonkalotten-Lautsprecher
ITTO20100854A1 (it) * 2010-10-21 2012-04-22 Dario Freda Dispositivo diffusore di suoni da palcoscenico
GB2522055A (en) * 2014-01-11 2015-07-15 Matthew James Dobson Loudspeaker system
GB2522055B (en) * 2014-01-11 2021-06-09 James Dobson Matthew Loudspeaker system

Also Published As

Publication number Publication date
EP0007569B1 (de) 1984-05-02
BE877364R (fr) 1979-10-15
DE2966953D1 (en) 1984-06-07

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