EP0281774A3 - Lautsprecher - Google Patents

Lautsprecher Download PDF

Info

Publication number
EP0281774A3
EP0281774A3 EP19880101866 EP88101866A EP0281774A3 EP 0281774 A3 EP0281774 A3 EP 0281774A3 EP 19880101866 EP19880101866 EP 19880101866 EP 88101866 A EP88101866 A EP 88101866A EP 0281774 A3 EP0281774 A3 EP 0281774A3
Authority
EP
European Patent Office
Prior art keywords
membrane
flat membrane
natural frequencies
drive cone
cone
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Withdrawn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
EP19880101866
Other languages
English (en)
French (fr)
Other versions
EP0281774A2 (de
Inventor
Helmut Caus
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0281774A2 publication Critical patent/EP0281774A2/de
Publication of EP0281774A3 publication Critical patent/EP0281774A3/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Withdrawn legal-status Critical Current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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Zur Verminderung der Eigenfrequenzen einer Flachmembran (3) eines Lautsprechers wird der die Membran mit den Schwingspulenkörper (6) verbindende Antriebskegel (9) als nichtrotationssymmetrischer Kegelstumpf ausgebildet. Der dadurch bedingte Verlauf der Verbindung zwischen An­ triebskegel und Flachmembran erzwingt auf der Membran eine Schwin­ gungsknotenlinie, durch die die Eigenfrequenzen der Flachmembran be­ dämpft werden.
EP19880101866 1987-03-11 1988-02-09 Lautsprecher Withdrawn EP0281774A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3707741 1987-03-11
DE19873707741 DE3707741A1 (de) 1987-03-11 1987-03-11 Lautsprecher

Publications (2)

Publication Number Publication Date
EP0281774A2 EP0281774A2 (de) 1988-09-14
EP0281774A3 true EP0281774A3 (de) 1990-12-27

Family

ID=6322742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880101866 Withdrawn EP0281774A3 (de) 1987-03-11 1988-02-09 Lautsprecher

Country Status (3)

Country Link
EP (1) EP0281774A3 (de)
JP (1) JPS63236499A (de)
DE (1) DE3707741A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243894A (ja) * 1988-08-03 1990-02-14 Matsushita Electric Ind Co Ltd スピーカ
DE19747955C2 (de) * 1997-10-30 2002-11-07 Harman Audio Electronic Sys Lautsprecher
JP5085318B2 (ja) 2004-04-16 2012-11-28 ニュー トランスデューサーズ リミテッド 音響装置及び音響装置製造方法
JP4576991B2 (ja) * 2004-11-22 2010-11-10 パナソニック株式会社 振動板とそれを用いたスピーカ
DE102006035010A1 (de) * 2006-07-28 2008-02-07 Siemens Ag Flächenlautsprecher mit einer Schwingspule

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1487382A1 (de) * 1966-05-03 1969-01-02 Nippon Musical Instruments Mfg Lautsprecher mit asymmetrischer Membran
JPS5730500A (en) * 1980-07-30 1982-02-18 Pioneer Electronic Corp Plane speaker
JPS5783995A (en) * 1980-11-11 1982-05-26 Matsushita Electric Ind Co Ltd Speaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1487382A1 (de) * 1966-05-03 1969-01-02 Nippon Musical Instruments Mfg Lautsprecher mit asymmetrischer Membran
JPS5730500A (en) * 1980-07-30 1982-02-18 Pioneer Electronic Corp Plane speaker
JPS5783995A (en) * 1980-11-11 1982-05-26 Matsushita Electric Ind Co Ltd Speaker

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 164 (E-127)[1042], 27. August 1982; & JP-A-57 083 995 (MATSUSHITA) 26-05-1982 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 99 (E-111)[977], 8. Juni 1982; & JP-A-57 030 500 (PIONEER K.K.) 18-02-1982 *

Also Published As

Publication number Publication date
JPS63236499A (ja) 1988-10-03
EP0281774A2 (de) 1988-09-14
DE3707741A1 (de) 1988-09-22

Similar Documents

Publication Publication Date Title
ES8401298A1 (es) Un dispositivo transductor electrodinamico.
GB670868A (en) A filter for sound vibrations and a microphone and telephone provided therewith
EP0281774A3 (de) Lautsprecher
JPS5573195A (en) Microphone device for noise prevention
JPS62196495U (de)
JPS60145791U (ja) ド−ム型スピ−カ−
JPS56111396A (en) Personal audio apparatus
JPS647798A (en) Noise-exclusion telephone set with microphone supporter
JPS57176870A (en) Loud-speaking telephone set
JPS583689U (ja) ド−ム型スピ−カ−のイコライザ−
FR2428952A3 (fr) Haut-parleur electrodynamique a membrane convexe
JPH0216692U (de)
SE8703252D0 (sv) Bashogtalare
GB611179A (en) Improvements in and relating to acoustic instruments, such as loud speakers and directional microphones
JPH02106744U (de)
TH7028A (th) โทรศัพท์
JPS5826296U (ja) 平板スピ−カ
CH257151A (de) Elektroakustischer Wandler.
DE1987158U (de) Mikrofon mit Druckwellenschutz
JPS60177591U (ja) スピ−カユニツト
JPH025961U (de)
RU92015853A (ru) Устройство преобразования звуковых сигналов для общения с операторами асу при тренаже профессиональных навыков
JPS6129591U (ja) ド−ム型スピ−カ−
JPS58172537U (ja) 水路用段差ブロツク
JPS6126394U (ja) ド−ム型スピ−カ−

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 DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT 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: 19910628