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Method of actively controlling noise, and apparatus thereof

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03B-029/00
출원번호 US-0352230 (1994-12-08)
우선권정보 JP-0308022 (1993-12-08); JP-0317563 (1993-12-17)
발명자 / 주소
  • Ohki Katsuo (Ibaraki-ken JPX) Shimode Shinichi (Ibaraki-ken JPX) Iwase Yukiji (Ushiku JPX) Sekiguchi Osamu (Ryugasaki JPX) Watanabe Masanori (Ibaraki-ken JPX) Daikoku Takahiro (Ushiku JPX) Tsukaguchi
출원인 / 주소
  • Hitachi, Ltd. (Tokyo JPX 03)
인용정보 피인용 횟수 : 50  인용 특허 : 5

초록

In an active noise-reduction controlling apparatus, there are provided a reference sensor for outputting a reference signal corresponding to information about a noise source, a noise-reduction error sensor for detecting a noise-reduction condition, an adding acoustic wave source controlled to produc

대표청구항

For use in an active noise-reduction controlling apparatus including a reference sensor for outputting a reference signal corresponding to information about a noise source; a noise-reduction error sensor for detecting a noise-reduction condition; an adding acoustic wave source for producing an acous

이 특허에 인용된 특허 (5)

  1. Eriksson Larry J. (Madison WI) Allie Mark C. (Oregon WI), Active acoustic attenuation system with reduced convergence time.
  2. Eriksson Larry J. (Madison WI), Active attenuation system with on-line modeling of speaker, error path and feedback pack.
  3. Kinoshita Akio (Fujisawa JPX) Doi Kazuhiro (Yokohama JPX) Muraoka Kenichiro (Yokohama JPX) Hamabe Isutomu (Yokosuka JPX), Active noise reduction apparatus.
  4. Miller Harry B. (Niantic CT), Electronic noise-reducing system.
  5. Eguchi Masaki (Nara JPX), System using plurality of adaptive digital filters.

이 특허를 인용한 특허 (50)

  1. Krause Hartmut,DEX, Acoustic wave therapy apparatus with reduced noise during acoustic wave emission.
  2. Zimmermann, Sergio, Active microphonic noise cancellation in radiation detectors.
  3. Nguyen, Quoc Hoai; Nagorski, Arkadiusz Bartlomiej; Fung, Eric YuHang; Watson, Eric Tracy, Active noise cancelation systems and devices.
  4. Nelson, Karl Einar; Burks, Morgan T., Active noise canceling system for mechanically cooled germanium radiation detectors.
  5. Nakamura,Yoshio; Onishi,Masahide; Inoue,Toshio; Takahashi,Akira, Active noise control system.
  6. Pan, Davis Y.; Cheng, Christopher J., Active noise reduction adaptive filter adaptation rate adjusting.
  7. Pan, Davis Y.; Cheng, Christopher J.; Salvador, Eduardo T., Active noise reduction adaptive filter leakage adjusting.
  8. Pan, Davis Y.; Salvador, Eduardo T., Active noise reduction adaptive filter leakage adjusting.
  9. Pan, Davis; Cheng, Christopher J.; Salvador, Eduardo, Active noise reduction adaptive filter leakage adjusting.
  10. Carme,Christian; Delemotte,Virginie; Chaffois,Pierre; Damizet,Patrick, Active sound attenuation device to be arranged inside a duct, particularly for the sound insulation of a ventilating and/or air conditioning system.
  11. Sakamoto, Kosuke; Inoue, Toshio; Takahashi, Akira; Kobayashi, Yasunori; Yamagata, Kenji; Fukumoto, Shinji, Active vibratory noise control apparatus.
  12. Nicolino ; Jr. Sam J., Adaptive noise transformation system.
  13. Fischer, Joern, Adaptive reduction of noise signals and background signals in a speech-processing system.
  14. Fischer, Joern, Adaptive reduction of noise signals and background signals in a speech-processing system.
  15. Pan, Davis, Asymmetric temperature compensation of microphone sensitivity at an active noise reduction system.
  16. Breems, Lucien J. M.; Rutten, Robert; Van Der Ploeg, Hendrik, Calibration circuit and method for A/D converter.
  17. Emborg, Urban; Gustavsson, Mats; Leth, Siv; Samuelsson, Fredrik, Device for active sound control in a space.
  18. Rambaud, Marta M.; Vila, Pablo, Digital adaptive equalizer for T1/E1 long haul transceiver.
  19. Vaishya,Manish, Digital filter modeling for active noise cancellation.
  20. Marash Joseph,ILX, Dual-processing interference cancelling system and method.
  21. Lyon, Geoff; Jam, Mehrban; Robinson, Ian N, Electronic device having active noise control with an external sensor.
  22. Sommerfeldt,Scott David; Faber,Benjamin Mahonri, Energy density control system using a two-dimensional energy density sensor.
  23. Ku, Emery; Argyropoulos, Paraskevas, Estimating secondary path magnitude in active noise control.
  24. Argyropoulos, Paraskevas; Ku, Emery M., Estimating secondary path phase in active noise control.
  25. Paz Barahona,Francisco Jose; Loose,Timothy C., Gaming machine with ambient noise attenuation.
  26. Bonney, James; Pryzby, Eric M., Gaming machine with surround sound features.
  27. Bonney, James; Pryzby, Eric M., Gaming machine with surround sound features.
  28. Bonney, James; Pryzby, Eric M., Gaming machine with surround sound features.
  29. Asada, Kohei; Itabashi, Tetsunori; Ozawa, Noriyuki, Headphone device, signal processing device, and signal processing method.
  30. Landeck Vince, Method and apparatus for lowering audible noise emissions from lithotriptors.
  31. Avargel, Yekutiel; Raifel, Mark, Method and system for noise reduction and speech enhancement.
  32. Jackson ; Jr. II I. Riley ; Freeburg Thomas A., Method and system for reducing undesired signals in a communication environment.
  33. Sibbald,Alastair, Method of improving the audibility of sound from a loudspeaker located close to an ear.
  34. Daniels Mark A., Noise canceling system.
  35. Kano, Hiroyuki, Noise control device.
  36. Fujiwara, Susumu, Noise control system, and fan structure and outdoor unit of air-conditioning-apparatus each equipped therewith.
  37. Mori, Keiji; Kano, Hiroyuki; Maeda, Tsuyoshi; Asao, Yoshifumi, Noise reduction device.
  38. Wertz, Duane; Shridhar, Vasant, Quiet zone control system.
  39. Rosenzweig,Michael D., Reducing undesirable audio signals.
  40. Hanazono, Masaya; Yamada, Wakio, Signal processing device, program, and range hood system.
  41. Rasmussen,Erik Witthoefft, Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment.
  42. Fang,Xiaoling; Wilson,Gerald; Giles,Brad, Subband acoustic feedback cancellation in hearing aids.
  43. Xiaoling Fang ; Gerald Wilson ; Brad Giles, Subband acoustic feedback cancellation in hearing aids.
  44. Marash, Joseph; Berdugo, Baruch, Super directional beamforming design and implementation.
  45. Marash Joseph,ILX, System and method for adaptive interference cancelling.
  46. Shridhar, Vasant; Wertz, Duane, System for active noise control with audio signal compensation.
  47. Shridhar, Vasant; Wertz, Duane, System for active noise control with audio signal compensation.
  48. Shridhar, Vasant; Wertz, Duane, System for active noise control with parallel adaptive filter configuration.
  49. Joseph Marash IL; Baruch Berdugo IL, System, method and apparatus for cancelling noise.
  50. Eisenhour, Ronald S.; Tan, Adrian, Vehicle HVAC noise control system.
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