Patents Examined by Sabrina Diaz
  • Patent number: 10777208
    Abstract: A schematic block diagram of an audio encoder for encoding a multichannel audio signal is shown. The audio encoder includes a linear prediction domain encoder, a frequency domain encoder, and a controller for switching between the linear prediction domain encoder and the frequency domain encoder. The controller is configured such that a portion of the multichannel signal is represented either by an encoded frame of the linear prediction domain encoder or by an encoded frame of the frequency domain encoder. The linear prediction domain encoder includes a downmixer for downmixing the multichannel signal to obtain a downmixed signal. The linear prediction domain encoder further includes a linear prediction domain core encoder for encoding the downmix signal and furthermore, the linear prediction domain encoder includes a first joint multichannel encoder for generating first multichannel information from the multichannel signal.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 15, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Guillaume Fuchs, Emmanuel Ravelli, Christian Neukam, Konstantin Schmidt, Conrad Benndorf, Andreas Niedermeier, Benjamin Schubert, Ralf Geiger
  • Patent number: 10779098
    Abstract: A patient monitor can diagnose whether its speaker is blocked, malfunctioning, or at a volume that is too low. For example, the monitor can include a processor that can diagnose the speaker by recording a microphone input signal. The processor can compare the microphone input signal to an expected alarm signal that should be output by the speaker. If the two do not match or reasonably correspond to one another, then the processor may increase the volume of the alarm to determine whether doing so can overcome an obstruction, noise, or potential malfunction. The microphone can again detect the speaker output, and the processor can again make another comparison or analysis of the input with the speaker output. If the speaker output as detected via the microphone is still insufficiently loud, then the patient monitor may output an indication that the speaker has a problem.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: September 15, 2020
    Assignee: MASIMO CORPORATION
    Inventors: Joy Iswanto, Bilal Muhsin, Raul Jimenez
  • Patent number: 10779074
    Abstract: For earwear with multiple support members supporting multiple configurations, methods, apparatus, and systems are disclosed. One apparatus includes a first support member configured to contact a first portion of a user's head, a second support member configured to contact a second portion of the user's head different than the first, a positioner that moves the first support member and the second support member between a first configuration where the first support member is extended and the second support member is retracted, and a second configuration the first support member is retracted and the second support member is extended.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 15, 2020
    Assignee: Lenovo (Singapore) PTE LTD
    Inventors: Russell Speight VanBlon, Robert James Kapinos, Scott Wentao Li, Robert James Norton, Jr.
  • Patent number: 10764709
    Abstract: A first playback stream presentation intended for reproduction on a first audio reproduction system and transform parameters may be received and decoded. The second playback stream presentation may be intended for reproduction on headphones. The transform parameters may be applied to an intermediate playback stream presentation to obtain the second playback stream presentation. The intermediate playback stream presentation may be the first playback stream presentation, a downmix of the first playback stream presentation, or an upmix of the first playback stream presentation. A cross-talk-cancelled signal may be obtained by processing the second playback stream presentation with a cross-talk cancellation algorithm. The cross-talk-cancelled signal may be processed by a dynamic equalization or gain stage wherein an amount of equalization or gain may be dependent on a level of the first playback stream presentation or the second playback stream presentation.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: September 1, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Dirk Jeroen Breebaart, Alan J. Seefeldt
  • Patent number: 10764700
    Abstract: The present disclosure generally relates to user interfaces and techniques for monitoring noise exposure levels using an electronic device. In accordance with some embodiments, the electronic device displays a graphical indication of a noise exposure level over a first period of time with an area of the graphical indication that is colored to represent the noise exposure level, the color of the area transitioning from a first color to a second color when the noise exposure level exceeds a first threshold. In accordance with some embodiments, the electronic device displays noise exposure levels attributable to a first output device type and a second output device type and, in response to selecting a filtering affordance, visually distinguishes a set of noise exposure levels attributable to the second output device type.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: September 1, 2020
    Assignee: Apple Inc.
    Inventor: Nicholas Felton
  • Patent number: 10743105
    Abstract: Methods and devices for panning audio may include receiving audio data from an application open on at least one display device of a plurality of display devices in communication with a computer device. The methods and devices may include selecting a set of speakers from a plurality of speakers of the plurality of display devices to receive the audio data in response to speaker location information and application location information with a current location for the application. The methods and devices may include receiving updated application location information with a new location for the application and selecting a new set of speakers from the plurality of speakers to receive the audio data in response to the new location for the application. The methods and devices may include transitioning the audio data from the set of speakers to the new set of speakers.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: August 11, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Arthi Gokarn, Kishore Arvind Kotteri, Firoz Dalal
  • Patent number: 10743099
    Abstract: Provided is an area reproduction system including a reproduction unit including a speaker array, a processing unit that processes a reproduction sound to be output from each of a plurality of speakers included the speaker array, based on a control line including a reproduction line that strengthens a sound wave radiated from the speaker array and a non-reproduction line that weakens the sound wave, so that an audio beam of a predetermined sound pressure or more is radiated only to the reproduction line, the control line being substantially parallel with the speaker array and being set in a position separated from the speaker array, and a directional angle control unit that adjusts a phase of the reproduction sound so that a radiating direction of the audio beam is deflected by a specified angle, in which each of the plurality of speakers outputs the processed and adjusted reproduction sound.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: August 11, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Atsushi Sakaguchi, Toshiyuki Matsumura
  • Patent number: 10741164
    Abstract: This document describes a method that includes receiving an input signal representing audio captured by a sensor disposed in an active noise reduction (ANR) device, determining, by one or more processing devices, that the ANR device is operating in a first operational mode, and in response, applying a first gain to the input signal to generate a first amplified input signal. The method also includes determining, by the one or more processing devices, that the ANR device is operating in a second operational mode different from the first operational mode, and in response, applying a second gain to the input signal to generate a second amplified input signal, wherein the second gain is different from the first gain. The method further includes processing the first or second amplified input signal to generate an output signal, and generating, by an acoustic transducer, an audio output based on the output signal.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 11, 2020
    Assignee: Bose Corporation
    Inventors: Masanori Honda, Christopher A. Barnes, Ricardo F. Carreras, Alaganandan Ganeshkumar
  • Patent number: 10733973
    Abstract: The present disclosure relates to a vehicle and a method for controlling thereof, and more particularly to a technique for removing noise generated in a vehicle air conditioner. The vehicle may include an air conditioner, comprising: a speaker configured to output sound; a blower fan configured to blow air that is heat-exchanged in the air conditioner; an air vent configured to regulate a discharge amount of the air discharged into the vehicle; and a controller configured to sense a noise acoustic signal of the blower fan that is determined corresponding to an opening degree of the air vent, and to control the speaker to to output by generating an acoustic signal having an opposite phase to the sensed noise acoustic signal.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 4, 2020
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Young Kim, Yonghwan Hwang, Jaehyuk Jang, Minsik Yang, HyeonHee Kang
  • Patent number: 10714104
    Abstract: The present disclosure provides methods, devices and computer program products for encoding and decoding of a vector of parameters in an audio coding system. The disclosure further relates to a method and apparatus for reconstructing an audio object in an audio decoding system. According to the disclosure, a modulo differential approach for coding and encoding a vector of a non-periodic quantity may improve the coding efficiency and provide encoders and decoders with less memory requirements. Moreover, an efficient method for encoding and decoding a sparse matrix is provided.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: July 14, 2020
    Assignee: Dolby International AB
    Inventors: Leif Jonas Samuelsson, Heiko Purnhagen
  • Patent number: 10708689
    Abstract: A technique for reducing acoustic feedback in audio communications includes measuring variations in round-trip delay over an audio signal pathway. The technique varies a delay interval of an adjustable-delay element in real time based on the measured variations in round-trip delay, effectively canceling the delay variations. Further techniques are disclosed for detecting and eliminating howling frequencies which arise as a result of acoustic feedback in the audio signal pathway.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: July 7, 2020
    Assignee: LogMeln, Inc.
    Inventors: Carlotta Anemüller, Florian Heese, Patrick Vicinus
  • Patent number: 10701476
    Abstract: A speaker unit for a vehicle includes a subwoofer unit for outputting sound in a base sound region, an amplifier (AMP) circuit unit mounted on a side of the subwoofer unit for amplifying an acoustic current signal and supplying the amplified acoustic current signal to the subwoofer unit, and an amplifier protection cover unit coupled to the subwoofer unit at one side of the subwoofer unit and configured to cover the amplifier circuit unit.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: June 30, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Keunsang Woo, Zhe Li, Min Wu, Jeongtae Lee
  • Patent number: 10681463
    Abstract: Some disclosed systems and methods include assigning channel streams to satellite playback devices, delaying initial transmission of surround sound content to satellite playback devices to accumulate audio samples for transmission in individual frames of surround sound content, and taking advantage of configured playback delays for different channels of surround sound content to prioritize transmission of channels of surround sound content having shorter configured playback delays over transmission of channels of surround sound content having longer configured playback delays.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: June 9, 2020
    Assignee: Sonos, Inc.
    Inventor: Steven Beckhardt
  • Patent number: 10665220
    Abstract: Technology described in this document can be embodied in a method that includes receiving a first input signal captured by at least a first feedforward microphone associated with an active noise reduction (ANR) device, receiving a second input signal captured by at least a second feedforward microphone associated with the ANR device, processing the first input signal using a first filter disposed in a first ANR signal flow path to generate a first output signal for an acoustic transducer of the ANR device, processing the second input signal using a second filter disposed in a second ANR signal flow path to generate a second output signal for the acoustic transducer, in which the second filter is different from the first filter, and generating a combined signal for the acoustic transducer based on combining the first output signal with the second output signal.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: May 26, 2020
    Assignee: Bose Corporation
    Inventor: Ole Mattis Nielsen
  • Patent number: 10659860
    Abstract: Headphones including a sound output unit, a processing unit, a memory unit, a lighting unit, and a detection unit are provided. The sound output unit is configured to output sound. The memory unit is configured to store a program. The lighting unit is configured to emit light in response to a signal supplied from the processing unit. The detection unit is configured to obtain detection information and supply a detection signal corresponding to the detection information to the processing unit. The processing unit is configured to read out the program, carry out an operation using the detection signal and the program, and supply a signal corresponding to an operation result to the lighting unit.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: May 19, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideaki Kuwabara, Natsuko Takase
  • Patent number: 10650839
    Abstract: Techniques are provided for reduction of echo in a received audio signal based on infinite impulse response (IIR) acoustic echo cancellation in the frequency domain. A methodology implementing the techniques according to an embodiment includes estimating an echo path transfer function associated with the received audio signal. The received audio signal includes a combination of a speech signal and a reference signal modified by the echo path transfer function. The estimation employs an IIR filter and a finite impulse response (FIR) filter, both of which operate in the frequency domain. The IIR filter is configured to model longer term echo components and the FIR filter is configured to model shorter term echo components. The method further includes applying the filters to the reference signal to generate an echo correction signal which is subtracted from the received audio signal to reduce the echo and generate an estimate of the speech signal.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: May 12, 2020
    Assignee: Intel Corporation
    Inventors: Amos Schreibman, Shmuel Markovich-Golan
  • Patent number: 10650797
    Abstract: The disclosure includes an acoustic processing network comprising a Digital Signal Processor (DSP) operating at a first frequency and a Real-Time Acoustic Processor (RAP) operating at a second frequency higher than the first frequency. The DSP receives a noise signal from at least one microphone. The DSP then generates a noise filter based on the noise signal. The RAP receives the noise signal from the microphone and the noise filter from the DSP. The RAP then generates an anti-noise signal based on the noise signal and the noise filter for use in Active Noise Cancellation (ANC).
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: May 12, 2020
    Assignee: AVNERA CORPORATION
    Inventor: Amit Kumar
  • Patent number: 10638227
    Abstract: There is provided a method for processing an audio input signal and a corresponding audio filter system. The method includes applying non-linear time-domain processing to the input signal to generate a processed copy of the input signal, transforming the input signal and the processed copy of the input signal to the frequency domain, and performing a comparison in the frequency-domain based on the transformed input signal and the transformed processed copy of the input signal. The method also includes determining at least one control parameter based on the comparison, performing frequency-domain processing of the transformed input signal based on the control parameter, and generating an output signal by transforming the frequency-domain processed signal to the time domain.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: April 28, 2020
    Assignee: DIRAC RESEARCH AB
    Inventor: Mattias Arlbrant
  • Patent number: 10638224
    Abstract: A beamforming audio capture apparatus comprises a microphone array (301) which is coupled to a first beamformer (303) and a second beamformer (305). The beamformers (303, 305) are filter-and-combine beamformers comprising a plurality of beamform filters each having an adaptive impulse response. A difference processor (309) determines a difference measure between beams of the first beamformer (303) and the second beamformer (305) in response to a comparison of the adaptive impulse responses of the two beamformers (303, 305). The difference measure may e.g. be used to combine the output signals of the beamformers (303, 305). An improved difference measure less sensitive to e.g. diffuse noise may be provided.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 28, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Cornelis Pieter Janse, Brian Brand Antonius Johannes Bloemendal
  • Patent number: 10607627
    Abstract: Techniques related to active acoustic echo cancellation are discussed. Such techniques may include generating an audio output signal having a portion thereof corresponding to a first audio frequency range to negate a response of an audio input device to an output from a speaker in a second audio frequency range at a response negation rate and decimating an audio input signal based on the response negation rate to generate a resultant audio input signal.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: March 31, 2020
    Assignee: Intel Corporation
    Inventor: Sebastian Rosenkiewicz