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Digital virtual earth active cancellation system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-015/31
출원번호 US-0477432 (1990-02-09)
발명자 / 주소
  • Ziegler
  • Jr. Eldon W. (Columbia MD)
출원인 / 주소
  • Noise Cancellation Technologies, Inc. (Linthicum MD 02)
인용정보 피인용 횟수 : 42  인용 특허 : 0

초록

A digital virtual earth active cancellation system which receives a phenomena input signal representing residual phenomena to be cancelled and has an adaptive filter which generates a cancellation signal. A system impulse response is convolved with the cancellation signal and is subtracted from the

대표청구항

A processor for an active cancellation system that detects repetitive phenomena, produces a residual signal and provides a cancelling repetitive phenomena, the active cancellation system having a system impulses response, the processor comprising: means for receiving a residual signal; and means for

이 특허를 인용한 특허 (42)

  1. McIntosh Jason D., Active noise cancellation aircraft headset system.
  2. Inoue, Toshio; Takahashi, Akira; Sakamoto, Kosuke; Kobayashi, Yasunori, Active noise control apparatus.
  3. Inoue, Toshio; Takahashi, Akira; Sakamoto, Kosuke; Kobayashi, Yasunori, Active noise control apparatus.
  4. Christoph, Markus, Active noise control system.
  5. Kasama Minoru,JPX, Active silencer.
  6. Saunders, William Richard; Vaudrey, Michael Allen, Adaptive personal active noise reduction system.
  7. Saunders,William Richard; Vaudrey,Michael Allen, Adaptive personal active noise reduction system.
  8. Saunders William Richard ; Vaudrey Michael Allen, Adaptive personal active noise system.
  9. Raptopoulos,Andreas; Klein,Volkmar; Robson,Dominic; Scourboutis,Eugene; Welter,Jeremy Hugh, Apparatus for acoustically improving an environment.
  10. Raptopolous,Andreas; Kieslinger,Michael, Apparatus for acoustically improving an environment and related method.
  11. Zoso, Luciano; Chin, Allan P.; Lester, David P., Front-end method for NICAM encoding.
  12. Claybaugh David (Germantown MD) Denenberg Jeffrey N. (Trumbull CT), Hands free noise canceling headset.
  13. Yamkovoy, Paul G., Headset power source managing.
  14. Ziegler ; Jr. Eldon W. (Clarksville MD) Smith Dexter (Columbia MD) McLoughlin Michael P. (Sykesville MD), Low cost controller.
  15. Fang, Xiaoling; Davis, Keith L.; Johnson, Martin R., Method and apparatus for minimizing latency in digital signal processing systems.
  16. Schrage, Jeremy, Method and apparatus for providing sidetone feedback notification to a user of a communication device with multiple microphones.
  17. Hillis,W. Daniel; Ferren,Bran; Howe,Russel, Method and system for masking speech.
  18. Hillis,W. Daniel; Ferren,Bran; Howe,Russel, Method and system for masking speech.
  19. Hillis,W. Daniel; Ferren,Bran; Howe,Russel; Eno,Brian, Method and system for masking speech.
  20. Bradford,Richard W.; Jacobs,Philip, Methods and apparatus for providing privacy for a user of an audio electronic device.
  21. Zoso,Luciano; Chin,Allan P.; Lester,David P., NICAM encoder featuring synchronization of a NICAM processor with front-end input and output sections.
  22. Andrea Douglas ; Topf Martin, Noise cancellation apparatus.
  23. Ross Colin Fraser (Stapleford GB2) Langley Andrew John (Welwyn GB2) Eatwell Graham Paul (Caldecote GB2), Noise reducing system.
  24. Fang, Xiaoling; Nilsson, Michael J., Noise reduction apparatus and method.
  25. Bergeron, Mark; Crump, Stephen; Gauger, Jr., Daniel M., Noise reduction headset.
  26. Yamkovoy, Paul G., Power supply voltage-based headset function control.
  27. Wertz, Duane; Shridhar, Vasant, Quiet zone control system.
  28. Fang,Xiaoling; Wilson,Gerald; Giles,Brad, Subband acoustic feedback cancellation in hearing aids.
  29. Marash, Joseph; Berdugo, Baruch, Super directional beamforming design and implementation.
  30. Shridhar, Vasant; Wertz, Duane, System for active noise control based on audio system output.
  31. Shridhar, Vasant; Wertz, Duane, System for active noise control with adaptive speaker selection.
  32. Wertz, Duane; Shridhar, Vasant, System for active noise control with an infinite impulse response filter.
  33. Shridhar, Vasant; Wertz, Duane, System for active noise control with audio signal compensation.
  34. Shridhar, Vasant; Wertz, Duane, System for active noise control with audio signal compensation.
  35. Shridhar, Vasant; Wertz, Duane, System for active noise control with audio signal compensation.
  36. Shridhar, Vasant; Wertz, Duane, System for active noise control with parallel adaptive filter configuration.
  37. Joseph Marash IL; Baruch Berdugo IL, System, method and apparatus for cancelling noise.
  38. Park, Hyun Jin; Chan, Kwokleung, Systems, methods, apparatus, and computer program products for enhanced active noise cancellation.
  39. Visser, Erik; Toman, Jeremy, Systems, methods, apparatus, and computer program products for enhanced intelligibility.
  40. Toman, Jeremy; Lin, Hung Chun; Visser, Erik, Systems, methods, apparatus, and computer program products for speech signal processing using spectral contrast enhancement.
  41. Lee, Te-Won; Park, Hyun Jin; Toman, Jeremy, Systems, methods, apparatus, and computer-readable media for automatic control of active noise cancellation.
  42. Park, Hyun Jin; Visser, Erik; Shin, Jongwon; Chan, Kwokleung; Gupta, Samir K; Schevciw, Andre Gustavo P.; Li, Ren; Toman, Jeremy P., Systems, methods, devices, apparatus, and computer program products for audio equalization.
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