×

ACTIVE NOISE CANCELLATION

  • US 20110129098A1
  • Filed: 10/28/2010
  • Published: 06/02/2011
  • Est. Priority Date: 10/28/2009
  • Status: Active Grant
First Claim
Patent Images

1. A system for providing active noise cancellation (ANC), comprising:

  • a digital ANC circuit configured to receive first audio information from a first microphone and to produce an a digital anti-noise signal configured to attenuate noise sensed by the first microphone;

    an analog ANC circuit configured to receive second audio information from a second microphone and to produce an analog anti-noise signal configured to attenuate noise sensed by the second microphone; and

    wherein the system is configured to receive an intended audio signal and to provide an output signal for a speaker using the intended audio signal, the analog anti-noise signal, and the digital anti-noise signal.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×