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[미국특허] Method of detecting acoustic signal 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G10L-003/00
  • H04R-003/00
  • H04R-075/00
출원번호 US-0490773 (1990-03-08)
우선권정보 JP-0058953 (1989-03-10)
발명자 / 주소
  • Kaneda Yutaka (Tokyo JPX)
출원인 / 주소
  • Nippon Telegraph & Telephone Corporation (JPX 03)
인용정보 피인용 횟수 : 64  인용 특허 : 0

초록

According to a method of detecting an acoustic signal, first and second sound receiving units are located at substantially the same position and are used to output signals having different target signal power to noise power ratios (S/N ratios). When a difference between the powers of the signals out

대표청구항

A method of detecting an acoustic signal, comprising the steps of: using first and second sound receiving units, located at the same position and having different directivity characteristics, for outputting signals having different target signal power to noise power ratios; and when a difference bet

이 특허를 인용한 특허 (64) 인용/피인용 타임라인 분석

  1. Martin, Andrew Louis, Acoustic sounding.
  2. Every, Mark; Solbach, Ludger; Murgia, Carlo; Jiang, Ye, Adaptive noise cancelation.
  3. Every, Mark; Solbach, Ludger; Murgia, Carlo; Jiang, Ye, Adaptive noise cancellation.
  4. Choi, Sangnam; Seguin, Chad, Adaptive signal equalization.
  5. Sadot, Emek, Advanced port-based E911 strategy for IP telephony.
  6. Belt,Harm J. W.; Janse,Cornelis P., Audio processing arrangement with multiple sources.
  7. Wolff, Tobias; Buck, Markus; Schmidt, Gerhard, Beamforming pre-processing for speaker localization.
  8. Nakao, Kengo; Yamashita, Hidetaka; Hirano, Katsumi, Dimension measurement system.
  9. Gonopolskiy,Aleksandr L.; Erten,Gamze, Directional sound acquisition.
  10. Choi Hyun-Woo,KRX ; Lee Jin-Sung,KRX, Directivity controlling apparatus.
  11. Marash Joseph,ILX, Dual-processing interference cancelling system and method.
  12. Boland, Simon Daniel; Choy, Jonathan R. Yee-Hang; McNamara, Paul Thomas, IP phone intruder security monitoring system.
  13. Burnett, Gregory C., Light-based detection for acoustic applications.
  14. Ratowsky,Richard P.; Verma,Ashish K.; Francis,Daniel A., Linear optical amplifier using coupled waveguide induced feedback.
  15. Rauhala, Jukka Vesa Tapani, Method and apparatus for audio signal classification.
  16. Coughlan, Marc William Joseph; Forbes, Alexander Quentin; Orbach, Julian James; Runcie, Peter Donald; Scholte, Alexander Martin; Warta, Ralph, Method and apparatus for routing telecommunication calls.
  17. Burnett, Gregory C., Microphone array with rear venting.
  18. Burnett, Gregory C., Microphone array with rear venting.
  19. Ohkubo Masashi,JPX ; Sasaki Toru,JPX, Microphone device.
  20. Saito,Nozomu; Kiuchi,Shingo; Nakata,Koichi, Microphone system.
  21. Gu Chuang ; Lee Ming-Chieh ; Chen Wei-ge, Morphological pure speech detection using valley percentage.
  22. Nemala, Sridhar Krishna; Woodruff, John; Verma, Tony; Caldwell, Frederic, Multi-sourced noise suppression.
  23. Mandel, Michael; Avendano, Carlos, Noise reduction using multi-feature cluster tracker.
  24. Nemala, Sridhar Krishna; Laroche, Jean, Noise suppression for speech processing based on machine-learning mask estimation.
  25. Sorensen, Karsten Vandborg, Processing audio signals.
  26. Sorensen, Karsten Vandborg, Processing audio signals.
  27. Sorensen, Karsten Vandborg, Processing audio signals.
  28. Strömmer, Stefan; Sørensen, Karsten Vandborg, Processing audio signals during a communication event.
  29. Sorensen, Karsten Vandborg; Åhgren, Per, Processing signals.
  30. Sorenson, Karsten Vandborg, Processing signals.
  31. Åhgren, Per, Processing signals.
  32. Åhgren, Per; Sorensen, Karsten Vandborg, Processing signals.
  33. Solbach, Ludger, Self calibration of audio device.
  34. Ratowsky, Richard P.; Verma, Ashish K.; Eng, Lars, Semiconductor laser with side mode suppression.
  35. Yuzuriha, Shinichi; Kanamori, Takeo, Sound collecting device, sound collecting method, and collecting program, and integrated circuit.
  36. Matsuo, Naoshi, Sound processing apparatus and recording medium storing a sound processing program.
  37. Acero, Alejandro; Tashev, Ivan J.; Seltzer, Michael L., Spatial noise suppression for a microphone array.
  38. Matsuo,Naoshi; Iwamida,Hitoshi, Speaker distance detection apparatus using microphone array and speech input/output apparatus.
  39. Avendano, Carlos; Klein, David; Woodruff, John; Goodwin, Michael M., Speech signal separation and synthesis based on auditory scene analysis and speech modeling.
  40. Marash, Joseph; Berdugo, Baruch, Super directional beamforming design and implementation.
  41. Avendano, Carlos; Solbach, Ludger, System and method for 2-channel and 3-channel acoustic echo cancellation.
  42. Malinowski, Stephen; Avendano, Carlos, System and method for adaptive classification of audio sources.
  43. Klein, David, System and method for adaptive intelligent noise suppression.
  44. Klein, David, System and method for adaptive intelligent noise suppression.
  45. Marash Joseph,ILX, System and method for adaptive interference cancelling.
  46. Murgia, Carlo; Afshar, Alex; Klein, David, System and method for adaptive power control.
  47. Klein, David, System and method for blind subband acoustic echo cancellation postfiltering.
  48. Solbach, Ludger, System and method for controlling adaptivity of signal modification using a phantom coefficient.
  49. Every, Mark; Klein, David, System and method for enhancing a monaural audio signal.
  50. Klein, David, System and method for envelope-based acoustic echo cancellation.
  51. Solbach, Ludger; Watts, Lloyd, System and method for processing an audio signal.
  52. Avendano, Carlos, System and method for providing close microphone adaptive array processing.
  53. Solbach, Ludger; Murgia, Carlo, System and method for providing noise suppression utilizing null processing noise subtraction.
  54. Every, Mark; Avendano, Carlos; Solbach, Ludger; Murgia, Carlo, System and method for providing single microphone noise suppression fallback.
  55. Avendano, Carlos; Murgia, Carlo, System and method for providing voice equalization.
  56. Avendano, Carlos; Murgia, Carlo, System and method for providing voice equalization.
  57. Griffin, Michael R., System and method for steering the directional response of a microphone to a moving acoustic source.
  58. Avendano, Carlos; Santos, Peter; Watts, Lloyd, System and method for utilizing inter-microphone level differences for speech enhancement.
  59. Avendano, Carlos; Watts, Lloyd; Santos, Peter, System and method for utilizing inter-microphone level differences for speech enhancement.
  60. Avendano, Carlos, System and method for utilizing omni-directional microphones for speech enhancement.
  61. Joseph Marash IL; Baruch Berdugo IL, System, method and apparatus for cancelling noise.
  62. Avendano, Carlos; Solbach, Ludger, Systems and methods for reconstructing decomposed audio signals.
  63. Burnett, Gregory C.; Breitfeller, Eric F., Voice activity detector (VAD)—based multiple-microphone acoustic noise suppression.
  64. Petit, Nicolas Jean; Burnett, Gregory C.; Goertz, Michael, Wind suppression/replacement component for use with electronic systems.

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