EP1414267A3 - Miniaturized loudspeakers - Google Patents

Miniaturized loudspeakers Download PDF

Info

Publication number
EP1414267A3
EP1414267A3 EP03450226A EP03450226A EP1414267A3 EP 1414267 A3 EP1414267 A3 EP 1414267A3 EP 03450226 A EP03450226 A EP 03450226A EP 03450226 A EP03450226 A EP 03450226A EP 1414267 A3 EP1414267 A3 EP 1414267A3
Authority
EP
European Patent Office
Prior art keywords
telephones
membrane
magnet system
digital amplifier
front cover
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Withdrawn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
EP03450226A
Other languages
German (de)
French (fr)
Other versions
EP1414267A2 (en
Inventor
Thomas Dipl.-Ing. Gmeiner
Hannes Ing. Lehdorfer
Ernst Dipl.-Ing. Stöttinger
Johann Steiner
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.)
AKG Acoustics GmbH
Original Assignee
AKG Acoustics 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 AKG Acoustics GmbH filed Critical AKG Acoustics GmbH
Publication of EP1414267A2 publication Critical patent/EP1414267A2/en
Publication of EP1414267A3 publication Critical patent/EP1414267A3/en
Withdrawn legal-status Critical Current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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Abstract

The invention concerns a miniaturized loudspeaker that operates according to the electrodynamic principle, and particularly for incorporation in small devices, such as telephones, mobile phones, hands-free devices for telephones, headphones, or the like, with a membrane (3) and a moving coil (4) fastened to it, a membrane holder (5), a magnet system (2), and optionally a front cover (7) and/or a rear cover, as well as a digital amplifier.
The invention is characterized by the fact that the digital amplifier is arranged in the form of an integrated circuit (10) either on the magnet system (2) or on the membrane holder (5), or on the inside of the front cover (7) or the rear cover.
EP03450226A 2002-10-22 2003-10-07 Miniaturized loudspeakers Withdrawn EP1414267A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT16072002 2002-10-22
AT16072002 2002-10-22

Publications (2)

Publication Number Publication Date
EP1414267A2 EP1414267A2 (en) 2004-04-28
EP1414267A3 true EP1414267A3 (en) 2004-06-16

Family

ID=32046374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03450226A Withdrawn EP1414267A3 (en) 2002-10-22 2003-10-07 Miniaturized loudspeakers

Country Status (3)

Country Link
EP (1) EP1414267A3 (en)
JP (1) JP2004147320A (en)
KR (1) KR20040035556A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1805618B (en) * 2005-12-29 2013-04-10 颜怀伟 Bidirectional headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices
AU2011348067B2 (en) 2010-12-23 2016-08-11 Trulli Engineering, Llc Low-profile speaker
CN104378722A (en) * 2014-11-21 2015-02-25 音品电子（深圳）有限公司 Ultra-miniature moving-coil electric-acoustic converter
CN105100992B (en) * 2015-07-20 2019-03-19 朝阳聚声泰（信丰）科技有限公司 A kind of high tone quality earphone horn
CN105072544B (en) * 2015-07-20 2019-03-01 朝阳聚声泰（信丰）科技有限公司 A kind of high-tone-quality mobile phone loudspeaker that demagnetization is dust-proof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499988A (en) * 1965-10-08 1970-03-10 Sanyo Electric Co Loudspeaker apparatus with audio frequency amplifier mounted thereon
US6243472B1 (en) * 1997-09-17 2001-06-05 Frank Albert Bilan Fully integrated amplified loudspeaker
US6263084B1 (en) * 1995-09-28 2001-07-17 Harman International Industries, Incorporated Power amplifier and loudspeaker frame integration

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499988A (en) * 1965-10-08 1970-03-10 Sanyo Electric Co Loudspeaker apparatus with audio frequency amplifier mounted thereon
US6263084B1 (en) * 1995-09-28 2001-07-17 Harman International Industries, Incorporated Power amplifier and loudspeaker frame integration
US6243472B1 (en) * 1997-09-17 2001-06-05 Frank Albert Bilan Fully integrated amplified loudspeaker

Also Published As

Publication number Publication date
JP2004147320A (en) 2004-05-20
EP1414267A2 (en) 2004-04-28
KR20040035556A (en) 2004-04-29

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