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Lumped parameter resonator of a piezoelectric speaker

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04R-025/00
출원번호 US-0851990 (1997-05-06)
발명자 / 주소
  • Markow Mitchell
출원인 / 주소
  • Compaq Computer Corporation
대리인 / 주소
    Akin, Gump, Strauss, Hauer & Feld, LLP
인용정보 피인용 횟수 : 28  인용 특허 : 14

초록

Piezoelectric speaker achieves radiation efficiency at low frequencies by using a piezoelectric speaker panel as a lumped parameter resonator. The speaker panel is mounted in a resonant system for generating translational motion. The resonant system includes suspension devices for suspending the pan

대표청구항

[ What is claimed is:] [1.] A multimedia laptop computer system, comprising:a first panel capable of vibrating in a transverse direction to produce acoustic energy;a second panel capable of vibrating in a transverse and translational direction to produce acoustic energy;a piezoelectric actuator coup

이 특허에 인용된 특허 (14)

  1. Rubio Rafael (Charlottesville VA) Balcells Eduardo (Charlottesville VA) Suarez Jorge (Neizahualcoyoil MXX), Adenosine dextran conjugates.
  2. Josephson David L. (San Jose CA) Lundgren David A. (Mill Valley CA) Oxford William V. (San Jose CA), Directional microphone for computer visual display monitor and method for construction.
  3. Conley John K. (Linthicum MD) Kokonaski William (Columbia MD) Parrella Michael J. (Weston CT) Machacek Steven L. (Alexandria VA), Piezo speaker and installation method for laptop personal computer and other multimedia applications.
  4. Shields F. Douglas (Rte. 6 ; Box 246 Oxford MS 38655), Piezoelectric panel speaker.
  5. Nakamura Takeshi (Uji JPX), Piezoelectric speaker.
  6. Szilagyi Andrei ; Strugach Michael, Piezoelectric speaker.
  7. Takahashi Masahiko,JPX, Piezoelectric speaker.
  8. Takaya Tadashi (Kyoto JPX), Piezoelectric speaker.
  9. Takaya Tadashi (Kyoto JPX), Piezoelectric speaker.
  10. Koyano Akio (Osaka JPX), Piezoelectric transducer for piezoelectric loud speaker.
  11. Smith Kelly K. ; Markow Mitchell A. ; Gough David E., Portable computer docking station having improved speaker apparatus therein.
  12. Ding Chih-Shun, Speaker and amplifier system.
  13. Markow Mitchell A., Thin film speaker apparatus for use in a thin film video monitor device.
  14. Kumada Akio (Kokubunji JPX) Nakamura Shigeo (Hino JPX), Transparent flat panel piezoelectric speaker.

이 특허를 인용한 특허 (28)

  1. Fonacier, Ejmar; Allen, Kirk A.; Srisathapat, Chad; Bazargan, Afshin, Battery shock absorber for a portable medical device.
  2. Rothkopf, Fletcher R.; Hobson, Phillip M.; Mittleman, Adam; Shedletsky, Anna-Katrina, Compact folded configuration for integrated circuit packaging.
  3. Rothkopf, Fletcher R.; Hobson, Phillip M.; Mittleman, Adam; Shedletsky, Anna-Katrina, Composite microphone boot to optimize sealing and mechanical properties.
  4. Jarvis, Daniel W.; Pascolini, Mattia; Nickel, Joshua G., Customizable antenna feed structure.
  5. Choi, YeongRak; Lee, Sungtae, Display device for generating sound by vibrating panel.
  6. Wang, Hongxing; Zhou, Rongguan; Tang, Kun, Electronic device with sound generator.
  7. Rothkopf, Fletcher R.; Hobson, Phillip M.; Mittleman, Adam; Shedletsky, Anna-Katrina, Formed PCB.
  8. Dabov, Teodor; Lim, Hui Leng; Yeates, Kyle; Lynch, Stephen Brian, Handheld computing device.
  9. Dabov, Teodor; Lim, Hui-Leng; Yeates, Kyle; Lynch, Stephen Brian, Handheld computing device.
  10. Rothkopf, Fletcher R.; Hobson, Phillip M.; Mittleman, Adam; Shedletsky, Anna-Katrina, Internal frame optimized for stiffness and heat transfer.
  11. Rothkopf, Fletcher R.; Hobson, Phillip M.; Mittleman, Adam; Shedletsky, Anna-Katrina, Internal frame optimized for stiffness and heat transfer.
  12. Donarski, Matthew A.; Boothe, Daniel K.; Crosby, Justin D.; Lerner, Mitchell R., Mechanically actuated panel acoustic system.
  13. Bazargan, Afshin; Vazquez, Pablo, Medical device and related assembly having an offset element for a piezoelectric speaker.
  14. Cheney, II, Paul S.; Bazargan, Afshin; Nguyen, Andrew B.; Law, David, Medical device with membrane keypad sealing element, and related manufacturing method.
  15. Dabov, Teodor; Lim, Hui Leng; Yeates, Kyle; Lynch, Stephen Brian, Method for handheld computer device.
  16. Rappoport, Benjamin M.; Berg, Bruce E.; Raff, John; McClure, Stephen R., Methods for manufacturing customized antenna structures.
  17. Rothkopf, Fletcher R.; Hobson, Phillip M.; Mittleman, Adam; Shedletsky, Anna-Katrina, Modular material antenna assembly.
  18. Choi, YeongRak; Oh, ChangHo; Park, KwanHo; Lee, Sungtae, Organic light emitting display device including a sound generating apparatus.
  19. Choi, YeongRak; Park, KwanHo; Lee, Sungtae; Kim, Kwangho, Panel vibration type display device for generating sound.
  20. Choi, YeongRak; Oh, ChangHo; Park, KwanHo; Lee, Sungtae, Panel vibration type sound generating display device.
  21. Choi, YeongRak; Park, KwanHo; Lee, Sungtae, Panel vibration type sound generating display device.
  22. Choi, YeongRak; Park, KwanHo; Lee, Sungtae, Panel vibration type sound generating display device.
  23. Lee, Sungtae; Choi, YeongRak, Panel vibration type sound generating display device.
  24. Choi, YeongRak; Lee, Sungtae, Panel vibration type sound-generating display device.
  25. Azima Henry,GBX ; Colloms Martin,GBX ; Crocker Norman,GBX ; Roberts Martin,GBX, Personal computing devices comprising a resonant panel loudspeaker.
  26. Srivastava, Prakhar; Markow, Mitchell Anthony; Peeler, Douglas Jarrett; Sultenfuss, Andrew Thomas, Piezoelectric force actuator audio system.
  27. Shedletsky, Anna-Katrina; Mittleman, Adam D.; Rothkopf, Fletcher R.; Hobson, Phillip M.; Jol, Eric S.; Lynch, Stephen Brian; Weber, Douglas J., Porting audio using a connector in a small form factor electronic device.
  28. Aarts, Ronaldus Maria; Johnson, Mark Thomas, Sound and vision system.
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