BE412258A - - Google Patents

Info

Publication number
BE412258A
BE412258A BE412258DA BE412258A BE 412258 A BE412258 A BE 412258A BE 412258D A BE412258D A BE 412258DA BE 412258 A BE412258 A BE 412258A
Authority
BE
Belgium
Prior art keywords
diaphragm
motor system
natural frequency
frequency
periods
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE412258A publication Critical patent/BE412258A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00Transducers of moving-armature or moving-core type
    • H04R11/02Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
BE412258D BE412258A (2)

Publications (1)

Publication Number Publication Date
BE412258A true BE412258A (2)

Family

ID=76040

Family Applications (1)

Application Number Title Priority Date Filing Date
BE412258D BE412258A (2)

Country Status (1)

Country Link
BE (1) BE412258A (2)

Similar Documents

Publication Publication Date Title
KR100842093B1 (ko) 감각 신호 출력 장치
JP3766221B2 (ja) 音響機器
JPH0267899A (ja) コンタクトピックアップ
FR2735646A1 (fr) Haut-parleur pour frequences elevees
EP2707779A1 (fr) Pièce d'horlogerie à mécanisme sonore
US4414436A (en) Narrow-frequency band acoustic transducer
FR2570238A1 (fr) Vibrateur electromecanique audio-frequence, destine a la reproduction de vibrations ressenties par le corps humain
JPH1093672A (ja) 加振器、加振装置及び携帯端末装置
BE412258A (2)
BE439377A (2)
JP2000157931A (ja) 発音振動体
US2041925A (en) Electric vacuum horn
KR20050044823A (ko) 고정보이스코일을이용한진동형골전도음전달체감진동마이크로리시버
KR100807703B1 (ko) 이어폰
WO2012076773A1 (fr) Transducteur acoustique bi-mode
FR2866777A3 (fr) Haut-parleur mince
MC1049A1 (fr) Haut-parleurs électrodynamiques
KR930005562Y1 (ko) 압전 스피커
CH705303B1 (fr) Pièce d'horlogerie à mécanisme sonore.
KR20080085470A (ko) 스피커
KR100355530B1 (ko) 경음기
BE898304A (fr) Générateur électro-acoustique.
JP2004048536A (ja) マイクロホン
CH497017A (fr) Générateur acoustique miniature
FR2574609A1 (fr) Elements piezoelectriques vibrants et transducteurs piezoelectriques electroacoustiques utilisant de tels elements