EP0403900A3 - Elektroakustische Lautsprechervorrichtung - Google Patents

Elektroakustische Lautsprechervorrichtung Download PDF

Info

Publication number
EP0403900A3
EP0403900A3 EP19900110936 EP90110936A EP0403900A3 EP 0403900 A3 EP0403900 A3 EP 0403900A3 EP 19900110936 EP19900110936 EP 19900110936 EP 90110936 A EP90110936 A EP 90110936A EP 0403900 A3 EP0403900 A3 EP 0403900A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
opening
tuning unit
housing
electroacoustical
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.)
Withdrawn
Application number
EP19900110936
Other languages
English (en)
French (fr)
Other versions
EP0403900A2 (de
Inventor
Krister Amnéus
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.)
AMNEUS, KRISTER
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 DE19893920038 external-priority patent/DE3920038A1/de
Priority claimed from DE19893920060 external-priority patent/DE3920060A1/de
Application filed by Individual filed Critical Individual
Publication of EP0403900A2 publication Critical patent/EP0403900A2/de
Publication of EP0403900A3 publication Critical patent/EP0403900A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers

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)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Es wird eine Lautsprechervorrichtung vorgeschlagen mit wenigstens einen in einer Öffnung eines Gehäuses angebrachten Lautsprecher, mit mindestens einer weiteren Gehäuseöffnung, die eine Größe, insbesondere Fläche und Tiefe hat, daß sie als solche Resonanz mit dem Gehäusevolumen (Vb) bei mindestens der Eigenfrequenz (Fs) des freien Lautsprechers gibt, wobei die Öffnung mit in ihr enthaltenem strömungsbegrenzendem Material eine erste Abstimmeinheit bildet und mit wenigstens einer aus einer weiteren Öffnung und gegebenenfals Pfropfen oder ähnlichem aus akustisch resistivem Material gebildeten weiteren Abstimmeinheit, die auf eine Frequenz abgestimmt ist, die unterschiedlich zu der von der ersten Abstimmeinheit bewirkten Resonanzfrequenz ist und deutlich unter der Eigenfrequenz (fs) des Lautsprechers liegt.
EP19900110936 1989-06-20 1990-06-09 Elektroakustische Lautsprechervorrichtung Withdrawn EP0403900A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19893920038 DE3920038A1 (de) 1989-06-20 1989-06-20 Elektroakustische lautsprechervorrichtung
DE19893920060 DE3920060A1 (de) 1989-06-20 1989-06-20 Elektroakustische lautsprechervorrichtung
DE3920060 1989-06-20
DE3920038 1989-06-20

Publications (2)

Publication Number Publication Date
EP0403900A2 EP0403900A2 (de) 1990-12-27
EP0403900A3 true EP0403900A3 (de) 1992-03-25

Family

ID=25882113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900110936 Withdrawn EP0403900A3 (de) 1989-06-20 1990-06-09 Elektroakustische Lautsprechervorrichtung

Country Status (2)

Country Link
EP (1) EP0403900A3 (de)
DD (1) DD298985A5 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714788A1 (fr) * 1993-12-31 1995-07-07 Sono Light Diffusion Dispositif émetteur de bruits blancs.
US11606633B2 (en) 2019-12-10 2023-03-14 Apple Inc. Speaker assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729061A (en) * 1970-02-27 1973-04-24 Pioneer Electronic Corp Speaker box
GB1406427A (en) * 1971-10-22 1975-09-17 Ferrograph Co Ltd Bass reflex loud-speaker enclosures
FR2365926A1 (fr) * 1976-09-27 1978-04-21 Marantz Co Systeme haut-parleur
DE3920041C1 (de) * 1989-06-20 1990-12-06 Amneus Engineering, Vaellingby, Se

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729061A (en) * 1970-02-27 1973-04-24 Pioneer Electronic Corp Speaker box
GB1406427A (en) * 1971-10-22 1975-09-17 Ferrograph Co Ltd Bass reflex loud-speaker enclosures
FR2365926A1 (fr) * 1976-09-27 1978-04-21 Marantz Co Systeme haut-parleur
DE3920041C1 (de) * 1989-06-20 1990-12-06 Amneus Engineering, Vaellingby, Se

Also Published As

Publication number Publication date
EP0403900A2 (de) 1990-12-27
DD298985A5 (de) 1992-03-19

Similar Documents

Publication Publication Date Title
DE69511349T2 (de) Verfahren und Vorrichtung zur Erfassung gewisser Parameter eines Kindersitzes zur Steuerung eines Kraftfahrzeug-Gassacks
DE69605687T2 (de) Alarmetikett
EP0384120A3 (de) Tastatur für eine elektronische Orgel mit Klaviereffekt
DE2738773A1 (de) Elektroakustischer wandler
DE2920087C2 (de) Tastatur für ein Dateneingabegerät o.dgl
DE8126183U1 (de) "brieflocher"
EP0990400A3 (de) Schutzhülle für elektronische Schlüssel
DE9411934U1 (de) Alarmeinrichtung für transportable Vorrichtung
WO1987003984A1 (en) Anti-theft device for flat objects
DE690199C (de) Normalschallquelle fuer die Erzeugung eines bestimmten Frequenzspektrums von gleichbleibender Lautstaerke zum Pruefen und Eichen akustischer Geraete
DE2310066A1 (de) Anordnung mit wenigstens einem mikrophon zur schallabnahme vom resonanzboden von musikinstrumenten
DE202023106054U1 (de) Gedenkstein mit integriertem Fach
DE19629819A1 (de) Notrufgeber
DE848206C (de) Kristallautsprechersystem
DE2750439A1 (de) Schalldaemmende matte
Djurović Pseudo-harmonic Fluctuations of a Random Process Generated by Labrouste Transforms of Class $\Pi (s) _ {L} $
DE929683C (de) Gehaeuse fuer Mikrophone
DE1523715B1 (de) Einrichtung zum Schutz eines als Zeitnormal verwendeten mechanischen Schwingers gegen Stoesse und Erschuetterungen
DE202022106813U1 (de) Klingel
WO1988004901A1 (fr) Recipient, tel qu'une valise
Sherry Storage Ecology: Food Hoarding in Animals. Stephen B. Vander Wall. University of Chicago Press, Chicago, 1990. xii, 445 pp., illus. 76;paper, 29.95
DE3018725A1 (de) Tonerzeugende vorrichtung zur verhinderung von unerlaubter wegnahme der an den haltestangen aufgehaengten gegenstaende, im folgenden als tonklammer bezeichnet
EREMENKO et al. Calculation of the natural vibrations of anisotropic rectangular bodies by a structural finite element method(Raschet sobstvennykh kolebanii anizotropnykh priamougol'nykh tel strukturnym metodom konechnykh elementov)
DE9016948U1 (de) Außensirene für Alarmanlagen
VERMEER Discrete orthogonal wavelets

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AMNEUS, KRISTER

RIN1 Information on inventor provided before grant (corrected)

Inventor name: AMNEUS, KRISTER

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920926