Patents Assigned to RASMUSSEN DIGITAL APS
  • Patent number: 8965003
    Abstract: A device and method processing microphone signals from at least two microphones is presented. A first beamformer processes the signals from the microphones and provides a first beamformed signal. A power estimator processes the signals from the microphones and the first beamformed signal from the first beamformer in order to generate, in frequency bands, a first statistical estimate of the energy of a first part of an incident sound field. A gain controller processes said first statistical estimate in order to generate in frequency bands a first gain signal, and an audio processor for processing an input to the signal processing device in dependence of said generated first gain signal. The invention provides a new and improved noise reduction device and noise reduction method for use in the signal processing in devices processing acoustic signals, e.g. microphone devices.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: February 24, 2015
    Assignee: Rasmussen Digital ApS
    Inventor: Erik Witthøfft Rasmussen
  • Patent number: 8565459
    Abstract: A device and method processing microphone signals from at least two microphones is presented. A first beamformer processes the signals from the microphones and provides a first beamformed signal. A power estimator processes the signals from the microphones and the first beamformed signal from the first beamformer in order to generate, in frequency bands, a first statistical estimate of the energy of a first part of an incident sound field. A gain controller processes said first statistical estimate in order to generate in frequency bands a first gain signal, and an audio processor for processing an input to the signal processing device in dependence of said generated first gain signal. The invention provides a new and improved noise reduction device and noise reduction method for use in the signal processing in devices processing acoustic signals, e.g. microphone devices.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: October 22, 2013
    Assignee: Rasmussen Digital APS
    Inventor: Erik Witthøfft Rasmussen
  • Publication number: 20120314885
    Abstract: A device and method processing microphone signals from at least two microphones is presented. A first beamformer processes the signals from the microphones and provides a first beamformed signal. A power estimator processes the signals from the microphones and the first beamformed signal from the first beamformer in order to generate, in frequency bands, a first statistical estimate of the energy of a first part of an incident sound field. A gain controller processes said first statistical estimate in order to generate in frequency bands a first gain signal, and an audio processor for processing an input to the signal processing device in dependence of said generated first gain signal. The invention provides a new and improved noise reduction device and noise reduction method for use in the signal processing in devices processing acoustic signals, e.g. microphone devices.
    Type: Application
    Filed: June 12, 2012
    Publication date: December 13, 2012
    Applicant: RASMUSSEN DIGITAL APS
    Inventor: Erik Witthofft Rasmussen
  • Publication number: 20100061568
    Abstract: A device and method processing microphone signals from at least two microphones is presented. A first beamformer processes the signals from the microphones and provides a first beamformed signal. A power estimator processes the signals from the microphones and the first beamformed signal from the first beamformer in order to generate, in frequency bands, a first statistical estimate of the energy of a first part of an incident sound field. A gain controller processes said first statistical estimate in order to generate in frequency bands a first gain signal, and an audio processor for processing an input to the signal processing device in dependence of said generated first gain signal. The invention provides a new and improved noise reduction device and noise reduction method for use in the signal processing in devices processing acoustic signals, e.g. microphone devices.
    Type: Application
    Filed: October 5, 2007
    Publication date: March 11, 2010
    Applicant: RASMUSSEN DIGITAL APS
    Inventor: Erik Witthøfft Rasmussen