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Class Information
Number: 381/66
Name: Electrical audio signal processing systems and devices > Dereverberators
Description: Subject matter for removing echoes from a sound signal.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8712068 Acoustic echo cancellation Apr. 29, 2014
8705758 Audio processing device and method for reducing echo from a second signal in a first signal Apr. 22, 2014
8705759 Method for determining a signal component for reducing noise in an input signal Apr. 22, 2014
8693698 Method and apparatus to reduce non-linear distortion in mobile computing devices Apr. 8, 2014
8681999 Entrainment avoidance with an auto regressive filter Mar. 25, 2014
8675883 Apparatus and associated methodology for suppressing an acoustic echo Mar. 18, 2014
8644495 Echo canceler Feb. 4, 2014
8634569 Systems and methods for echo cancellation and echo suppression Jan. 21, 2014
8611558 System and method for dynamic range extension using interleaved gains Dec. 17, 2013
8612239 Apparatus and method for coding audio data based on input signal distribution characteristics of each channel Dec. 17, 2013
8582781 Echo modulation methods and systems Nov. 12, 2013
8553898 Method and system for reducing acoustical reverberations in an at least partially enclosed space Oct. 8, 2013
8548176 Apparatus including microphone arrangements Oct. 1, 2013
8538034 Method and arrangement for echo cancellation of voice signals Sep. 17, 2013
8538035 Multi-microphone robust noise suppression Sep. 17, 2013
8532306 Method and an apparatus of decoding an audio signal Sep. 10, 2013
8521530 System and method for enhancing a monaural audio signal Aug. 27, 2013
8515091 Forwarding an audio signal in an immersive audio conference system Aug. 20, 2013
8515086 Method and system for clock drift compensation Aug. 20, 2013
8509450 Dynamic audibility enhancement Aug. 13, 2013
8509465 Entrainment avoidance with a transform domain algorithm Aug. 13, 2013
8498423 Device for and a method of processing audio signals Jul. 30, 2013
8498429 Acoustic correction apparatus, audio output apparatus, and acoustic correction method Jul. 30, 2013
8483398 Methods and systems for reducing acoustic echoes in multichannel communication systems by reducing the dimensionality of the space of impulse responses Jul. 9, 2013
8477954 Controlling audio signals Jul. 2, 2013
8477956 Howling suppression device, howling suppression method, program, and integrated circuit Jul. 2, 2013
8472616 Self calibration of envelope-based acoustic echo cancellation Jun. 25, 2013
8467538 Dereverberation apparatus, dereverberation method, dereverberation program, and recording medium Jun. 18, 2013
8467544 Filter coefficient setting device and echo prevention device Jun. 18, 2013
8462958 Apparatus and method for computing filter coefficients for echo suppression Jun. 11, 2013
8462962 Sound processor, sound processing method and recording medium storing sound processing program Jun. 11, 2013
8462193 Method and system for processing audio signals Jun. 11, 2013
8447595 Echo-related decisions on automatic gain control of uplink speech signal in a communications device May. 21, 2013
8433074 Echo suppressing method and apparatus Apr. 30, 2013
8427522 Remotely monitoring and troubleshooting a videoconference Apr. 23, 2013
8422688 Method and an apparatus of decoding an audio signal Apr. 16, 2013
8411871 Echo cancellation Apr. 2, 2013
8406430 Simulated background noise enabled echo canceller Mar. 26, 2013
8401203 Information processing apparatus and program Mar. 19, 2013
8401201 Sound processing apparatus and method Mar. 19, 2013
8391505 Reverberation suppressing apparatus and reverberation suppressing method Mar. 5, 2013
8391504 Method and system for artificial reverberation employing dispersive delays Mar. 5, 2013
8384759 Video conferencing apparatus and method for configuring a communication session Feb. 26, 2013
8385557 Multichannel acoustic echo reduction Feb. 26, 2013
8379870 Ambient audio transformation modes Feb. 19, 2013
8374355 Robust and efficient frequency-domain decorrelation method Feb. 12, 2013
8355511 System and method for envelope-based acoustic echo cancellation Jan. 15, 2013
8335319 Double talk detection method based on spectral acoustic properties Dec. 18, 2012
8325934 Electronic pillow for abating snoring/environmental noises, hands-free communications, and non-invasive monitoring and recording Dec. 4, 2012
8325938 Handsfree call apparatus, acoustic reproducing apparatus with handsfree call function, and handsfree call method Dec. 4, 2012

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