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Improvements in and relating to active sound attenuation 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04R-001/28
출원번호 US-0749472 (1976-12-10)
발명자 / 주소
  • Chaplin
  • George Brian Barrie
  • Smith
  • Roderick Alan
출원인 / 주소
  • Sound Attenuators Limited
대리인 / 주소
    Howson and Howson
인용정보 피인용 횟수 : 51  인용 특허 : 1

초록

A primary sound wave in a confined space is attenuated by a secondary sound wave generated to null with the primary wave. The secondary wave is produced by a first electrical signal representing the primary wave as sensed by a microphone, which is convolved with a second signal derived from the syst

대표청구항

대표청구항이 없습니다.

이 특허에 인용된 특허 (1)

  1. Wanke Ronald L. (1960 N. Lincoln Park West Chicago IL 60614), Acoustic abatement method and apparatus.

이 특허를 인용한 특허 (51)

  1. Warnaka Glenn E. (Erie PA) Poole Lynn A. (State College PA) Tichy Jiri (State College PA), Active acoustic attenuator.
  2. Laak Trevor A. (Madison WI), Active attenuation system with on-line modeling of feedback path.
  3. Southward Steve C. (Cary NC) Rosetti Dino J. (Raleigh NC) Jolly Mark R. (Holly Springs NC), Active control of noise and vibration.
  4. Hersh Alan S. ; Walker Bruce E. ; Heidelberg Larry, Active control source cancellation and active control Helmholtz resonator absorption of axial fan rotor-stator interaction noise.
  5. Proksch, Roger, Active damping of high speed scanning probe microscope components.
  6. Proksch, Roger, Active damping of high speed scanning probe microscope components.
  7. Ferguson Matthew K. (Erie PA) Southward Steve C. (Cary NC) Heath Michael C. (Cary NC), Active noise and vibration cancellation system.
  8. Coleman Ronald Bruce ; Watters Bill Gene ; Westerberg Roy Allen, Active noise and vibration control system accounting for time varying plant, using residual signal to create probe sign.
  9. Dekker Nicolaas M. J. (Pinner GB2) Edwards John W. (Pinner GB2) James Adrian W. (London GB2), Active noise control.
  10. Mark A. Daniels ; Shau-Tak R. Chou, Active noise control for plug fan installations.
  11. Murray Bruce S. (Winchester MA), Active pneumatic mount.
  12. Kato Masahiko (Nukata JPX) Katou Masanori (Toyoake JPX) Kuwakado Satosi (Nukata JPX) Tanaka Katsuyuki (Nishio JPX) Ito Koji (Anjo JPX), Active silencer.
  13. Stothers Ian MacGregor (Norfolk GBX), Adaptive control system.
  14. Saunders, William Richard; Vaudrey, Michael Allen, Adaptive personal active noise reduction system.
  15. Saunders,William Richard; Vaudrey,Michael Allen, Adaptive personal active noise reduction system.
  16. Saunders William Richard ; Vaudrey Michael Allen, Adaptive personal active noise system.
  17. Salvetti, Arthur, Apparatus and method for dynamic detection and attenuation of periodic acoustic feedback.
  18. Swinbanks Malcolm A. (Pentlands Close GB2), Attenuation of sound waves.
  19. Proksch, Roger; Callahan, Roger C.; Stetter, Frank; Limpoco, Ted; Hohlbach, Sophia; Bemis, Jason; Cleveland, Jason, Automated atomic force microscope and the operation thereof.
  20. Proksch, Roger; Callahan, Roger C.; Stetter, Frank; Limpoco, Ted; Hohlbauch, Sophia; Bemis, Jason; Cleveland, Jason; Geiss, Nicholas, Automated atomic force microscope and the operation thereof.
  21. Swinbanks Malcolm A. (Cambridge GB2), Damping for directional sound cancellation.
  22. Swigert Charles J. (Pacific Palisades CA), Electronic cancelling of acoustic traveling waves.
  23. Theverapperuma, Lalin; Natarajan, Harikrishna P.; Salvetti, Arthur; Kindred, Jon S., Entrainment avoidance with an auto regressive filter.
  24. Shaw Jon A. (Overton NE), Fireman\s safety apparatus.
  25. Eriksson Larry J. (Madison WI) Allie Mark C. (Oregon WI) Hoops Richard H. (Stoughton WI), Hybrid active silencer.
  26. Kindred,Jon S., Method and apparatus for a hearing assistance system with adaptive bulk delay.
  27. Ross Colin F. (Cambridge GB2), Method and apparatus for active sound control.
  28. Chaplin, George B. B., Method and apparatus for cancelling vibration.
  29. Shoureshi Rahmat (West Lafayette IN), Method and apparatus for intelligent active and semi-active vibration control.
  30. Fang, Xiaoling; Davis, Keith L.; Johnson, Martin R., Method and apparatus for minimizing latency in digital signal processing systems.
  31. Herzog, Philippe, Method and device for actively correcting the acoustic properties of an acoustic space listening zone.
  32. French,F. William, Method and system for attenuating noise from a cabinet housing computer equipment.
  33. Chaplin George B. B. (Colchester GB2) Powell Andrew R. (Sheffield GB2) Smith Roderick A. (Colchester GB2), Method of reducing the adaption time in the cancellation of repetitive vibration.
  34. Taylor Brian A. (Felixstowe GB2 4), Method of transfer function generation and active noise cancellation in a vibrating system.
  35. Natarajan, Harikrishna P., Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices.
  36. Natarajan, Harikrishna P., Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices.
  37. Salvetti, Arthur; Natarajan, Harikrishna P., Methods and apparatus for early audio feedback cancellation for hearing assistance devices.
  38. Bradford,Richard W.; Jacobs,Philip, Methods and apparatus for providing privacy for a user of an audio electronic device.
  39. Kaneda, Yutaka; Ohga, Juro, Microphone-array apparatus and method for extracting desired signal.
  40. Andrea Douglas ; Topf Martin, Noise cancellation apparatus.
  41. Nagayasu Katsuyoshi (Yokohama JPX), Noise cancellor.
  42. Hosny,Diaa; Ahmad,Samir S., Noise control.
  43. Sakiyama Kazuhiro,JPX ; Sako Kazuya,JPX ; Nagami Masaaki,JPX ; Babasaki Masahiro,JPX, Noise control device.
  44. Fang, Xiaoling; Nilsson, Michael J., Noise reduction apparatus and method.
  45. Southward Steve C. ; Miller Lane R., Reduction of computational burden of adaptively updating control filter(s) in active systems.
  46. Ziegler ; Jr. Eldon (Columbia MD), Selective active cancellation system for repetitive phenomena.
  47. Swinbanks Malcolm A. (Cambridge GB2), Signal processing systems.
  48. Fang,Xiaoling; Wilson,Gerald; Giles,Brad, Subband acoustic feedback cancellation in hearing aids.
  49. Marash, Joseph; Berdugo, Baruch, Super directional beamforming design and implementation.
  50. Sallas John J. (Plano TX), Suppression of air-coupled noise produced by seismic vibrators.
  51. Joseph Marash IL; Baruch Berdugo IL, System, method and apparatus for cancelling noise.
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