Binaural And Stereophonic Patents (Class 381/1)
  • Patent number: 10327086
    Abstract: An enhanced Stereo Dimensional Array loudspeaker system 250 preferably including a mirror image pair of loudspeaker enclosures 280L, 280R configurable by a user or installer as a left-channel loudspeaker and a right channel loudspeaker each having a driver array aiming configuration with first and second angled baffle facets carrying main and effects drivers on separate facets and a Head Shadow filter signal processing system and method for driving the main and effects drivers to achieve a psycho-acoustically expanded image breadth by Head Shadow filter compensated inter-aural crosstalk cancellation.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 18, 2019
    Assignee: POLK AUDIO, LLC
    Inventors: Scott Orth, Stuart W. Lumsden
  • Patent number: 10327092
    Abstract: Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 18, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Charles Q. Robinson, Nicolas R. Tsingos, Christophe Chabanne
  • Patent number: 10327088
    Abstract: A spatial audio processor for providing spatial parameters based on an acoustic input signal has a signal characteristics determiner and a controllable parameter estimator. The signal characteristics determiner is configured to determine a signal characteristic of the acoustic input signal. The controllable parameter estimator for calculating the spatial parameters for the acoustic input signal in accordance with a variable spatial parameter calculation rule is configured to modify the variable spatial parameter calculation rule in accordance with the determined signal characteristic.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: June 18, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Oliver Thiergart, Fabian Kuech, Richard Schultz-Amling, Markus Kallinger, Giovanni Del Galdo, Achim Kuntz, Dirk Mahne, Ville Pulkki, Mikko-Ville Laitinen
  • Patent number: 10321252
    Abstract: A method of producing a spatialized stereo audio file from an original stereo audio file comprises creating a data base of impulse responses realized in at least one physical space divided into left, right, front, back, up and down sides relative to a sound acquisition position, with at least one pair of acquisition microphones placed at the sound acquisition position, with at least two pairs of source loudspeakers placed at sound source positions; the sound acquisition position is situated at the left-right median plane of the physical space, the sound source positions are distributed symmetrically by pairs relative to the sound acquisition position, the data base of impulse responses comprising at least one left/right impulse response pair, the left and right impulse responses being obtained by a deconvolution of the direct acquired signal from all the source loudspeakers distributed at the respective left and right side of the physical space.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: June 11, 2019
    Assignee: AXD Technologies, LLC
    Inventors: Franck Vincent Rosset, Jean-Luc Haurais
  • Patent number: 10313820
    Abstract: An audio system provides for spatial enhancement of an audio signal including a left input channel and a right input channel. The system may include a spatial frequency band divider, a spatial frequency band processor, and a spatial frequency band combiner. The spatial frequency band divider processes the left input channel and the right input channel into a spatial component and a nonspatial component. The spatial frequency band processor applies subband gains to subbands of the spatial component to generate an enhanced spatial component, and applies subband gains to subbands of the nonspatial component to generate an enhanced nonspatial component. The spatial frequency band combiner combines the enhanced spatial component and the enhanced nonspatial component into a left output channel and a right output channel. In some embodiments, the spatial component and nonspatial component are separated into spatial subband components and nonspatial subband components for the processing.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 4, 2019
    Assignee: Boomcloud 360, Inc.
    Inventor: Zachary Seldess
  • Patent number: 10306391
    Abstract: A transition between a stereophonic presentation and a monophonic presentation of a stereophonic input signal that includes a left channel signal and a right channel signal extracts content that is present at similar levels but not in-phase between the left and right channel signals to produce at least one of a left enhancement signal and a right enhancement signal. The left channel signal, the right channel signal, and only one of the left and right enhancement signals are combined to produce a monophonic signal for the monophonic presentation. Cross-fading between the left channel signal and the monophonic signal and between the right channel signal and the monophonic signal may be used to transition between the stereophonic presentation and the monophonic presentation. The stereophonic input signal may be up-mixed to produce enhancement signal. A similar transition between a multichannel presentation and a monophonic presentation of a multichannel signal is described.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 28, 2019
    Assignee: Apple Inc.
    Inventors: Sylvain J. Choisel, Afrooz Family, Brandon J. Rice
  • Patent number: 10306368
    Abstract: A method, apparatus and computer program product are provided to cause AN audio source to be modified in a manner consistent with the corresponding video images once the user and/or a display upon which the images are rendered has been tilted. In regards to a method, an initial virtual position of an audio source is determined. The method also includes determining a tilt angle that defines an angle that an apparatus embodying a display for rendering images has been tilted relative to a reference orientation of the apparatus with respect to a user of the apparatus. The method may also include modifying a virtual position of an audio source based upon the tilt angle and an initial virtual position of the audio source. The method may also include causing the audio source to be rendered in accordance with the virtual position as modified.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 28, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Marko Yliaho, Jarmo Hiipakka
  • Patent number: 10306393
    Abstract: The invention discloses rendering sound field signals, such as Higher-Order Ambisonics (HOA), for arbitrary loudspeaker setups, where the rendering results in highly improved localization properties and is energy preserving. This is obtained by a new type of decode matrix for sound field data, and a new way to obtain the decode matrix.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 28, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Johannes Boehm, Florian Keiler
  • Patent number: 10269364
    Abstract: A method performed in an audio decoder for decoding M encoded audio channels representing N audio channels is disclosed. The method includes receiving a bitstream containing the M encoded audio channels and a set of spatial parameters, decoding the M encoded audio channels, and extracting the set of spatial parameters from the bitstream. The method also includes analyzing the M audio channels to detect a location of a transient, decorrelating the M audio channels, and deriving N audio channels from the M audio channels and the set of spatial parameters. A first decorrelation technique is applied to a first subset of each audio channel and a second decorrelation technique is applied to a second subset of each audio channel. The first decorrelation technique represents a first mode of operation of a decorrelator, and the second decorrelation technique represents a second mode of operation of the decorrelator.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 23, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Mark F. Davis
  • Patent number: 10263811
    Abstract: An equalizing device has: a low-frequency zero-point circuit having a zero point in a low-frequency band of a before-equalization frequency characteristic of a communication medium; a high-frequency zero-point circuit having a zero point in a high-frequency band of the before-equalization frequency characteristic of the communication medium; and an intermediate-frequency zero-point circuit having a zero point in an intermediate-frequency band present between the low-frequency band and the high-frequency band, wherein an inclination of a waveform of the before-equalization frequency characteristic of the communication medium changes in the intermediate-frequency band; wherein the equalizing device equalizes the signal transmitted through the communication medium so as to restrain an amount of change in an inclination of a waveform of the after-equalization frequency characteristic.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 16, 2019
    Assignee: Hitachi Metals, Ltd.
    Inventor: Takayasu Norimatsu
  • Patent number: 10257630
    Abstract: A method of estimating an individualized head-related transfer function (HRTF) and an individualized interaural time difference function (ITDF) of a particular person, comprising the steps of: a) obtaining a plurality of data sets (Li, Ri, Oi), each comprising a left and a right audio sample (Li, Ri) from a pair of in-ear microphones, and orientation information (Oi) from an orientation unit, measured in a test-arrangement whereby an acoustic test signal is rendered via a loudspeaker; b) storing the data sets in a memory; c) estimating the directions of the loudspeaker relative to the person based on the orientation data and the audio data; d) estimating the ITDF based on the data sets and on the estimated relative position/orientation; e) estimating the HRTF, based on the data sets and based on the estimated relative position/orientation.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: April 9, 2019
    Assignee: UNIVERSITEIT ANTWERPEN
    Inventors: Jonas Reijniers, Herbert Godelieve P Peremans, Bart Wilfried M Partoens
  • Patent number: 10255029
    Abstract: An instant-on nothing-to-download “soundscaping” device that provides natural, atonal sounds such as the rolling surf of the ocean, running streams, gurgling brooks, rain, thunder, wind, crowd sounds, et al is provided.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 9, 2019
    Inventor: Yvette Seifert Hirth
  • Patent number: 10219095
    Abstract: Methods and apparatus improve a user experience during telephone calls or other forms of communication in which a listener localizes electronically generated binaural sounds. The sound is convolved or processed to a location that is behind or near a source of the sound so that the listener perceives the location of the sound as originating from the source of the sound.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: February 26, 2019
    Inventors: Glen A. Norris, Philip Scott Lyren
  • Patent number: 10204636
    Abstract: A combo-plug detecting circuit for use in an audio CODEC is provided. The combo-plug detecting circuit is used to determine the contact configuration of the audio plug, to ensure that the audio plug belonging to the differential structure can be compatible with the audio CODEC.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: February 12, 2019
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Tsung-Peng Chuang, Chia-Chi Tsai, Cheng-Pin Chang
  • Patent number: 10206040
    Abstract: Certain aspects of the technology disclosed herein include generating a virtual sound field based on data from an ambisonic recording device. The ambisonic device records sound of a surrounding environment using at least four microphones having a tetrahedral orientation. An omnidirectional microphone having an audio-isolated portion can be used to isolate sound from a particular direction. Sound received from the plurality of microphones can be used to generate a virtual sound field. The virtual sound field include a dataset indicating a pressure signal and a plurality of velocity vectors. The ambisonic recording device can include a wide angle camera and generate wide angle video corresponding to the virtual sound field.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: February 12, 2019
    Assignee: ESSENTIAL PRODUCTS, INC.
    Inventors: Michael Kolb, Xinrui Jiang, Andrew E. Rubin, Matthew Hershenson, Xiaoyu Miao, Joseph Anthony Tate, Jason Sean Gagne-Keats, David John Evans, V, Rebecca Schultz Zavin
  • Patent number: 10200540
    Abstract: Audio systems and methods are provided to reduce echo content in an audio signal. The systems and methods receive an audio signal and sound stage rendering parameter(s), and select a set of filter coefficients to filter the audio signal to provide an estimated echo signal. The estimated echo signal is subtracted from a microphone signal to provide an output signal with reduced echo content. The set of filter coefficients are selected based upon the sound stage rendering parameter(s) from among a plurality of stored sets of filter coefficients.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: February 5, 2019
    Assignee: BOSE CORPORATION
    Inventors: Cristian M. Hera, Vigneish Kathavarayan, Jeffery R. Vautin, Elie Bou Daher, Paraskevas Argyropoulos
  • Patent number: 10194258
    Abstract: The disclosure relates to an audio signal processing apparatus for filtering a left channel input audio signal (L) and a right channel input audio signal (R), a left channel output audio signal (X1) and a right channel output audio signal (X2) to be transmitted over acoustic propagation paths to a listener, wherein transfer functions of the acoustic propagation paths are defined by an acoustic transfer function matrix. The audio signal processing apparatus comprises a decomposer, a first cross-talk reducer, a second cross-talk reducer, and a combiner. The first cross-talk reducer is configured to reduce a cross-talk within a first predetermined frequency band upon the basis of the acoustic transfer function matrix. The second cross-talk reducer is configured to reduce a cross-talk within a second predetermined frequency band upon the basis of the acoustic transfer function matrix.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: January 29, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Yesenia Lacouture Parodi
  • Patent number: 10182302
    Abstract: A binaural decoder for an MPEG surround stream, which decodes an MPEG surround stream into a stereo 3D signal, and a decoding method thereof. The method includes dividing a compressed audio stream and head related transfer function (HRTF) data into subbands, selecting predetermined subbands of the HRTF data divided into subbands and filtering the HRTF data to obtain the selected subbands, decoding the audio stream divided into subbands into a stream of multi-channel audio data with respect to subbands according to spatial additional information, and binaural-synthesizing the HRTF data of the selected subbands with the multi-channel audio data of corresponding subbands.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: January 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Han-gil Moon, Sun-min Kim, In-gyu Chun
  • Patent number: 10168773
    Abstract: A position locating method and apparatus are applied to the electronic information field, so that shifting an indication cursor in a wide range using a wireless indication device can be avoided, and a user operation can be simplified. The method comprises detecting a line-of-sight orientation of a user, and obtaining a line-of-sight orientation parameter of the user; detecting a line-of-sight source of the user, and obtaining a line-of-sight source position of the user; obtaining a position of a screen, and obtaining a screen position of a line of sight according to the line-of-sight orientation parameter, the position of the screen, and the line-of-sight source position; and receiving an adjustment signal, adjusting, according to the adjustment signal, the position displayed on the screen, and displaying an adjusted position on the screen.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: January 1, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shiguo Lian, Jun Yao
  • Patent number: 10165380
    Abstract: An information processing apparatus includes a holding unit configured to hold a plurality of head related transfer functions for outputting directional sound in a plurality of directions, a setting unit configured to set a direction in which a first head related transfer function and a second head related transfer function are switched, based on characteristics of the first head related transfer function and the second head related transfer function, and a switching unit configured to switch a head related transfer function used to output the directional sound between the first head related transfer function and the second head related transfer function in the set direction.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: December 25, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kyohei Kitazawa
  • Patent number: 10158964
    Abstract: Provided are an audio signal processing method and apparatus for adjusting a location of an audio object in correspondence to a location of a visual object. The audio signal processing apparatus includes a matching unit configured to select an audio object corresponding to a visual object extracted from a video signal among at least one audio object extracted from an audio signal, a location adjusting unit configured to adjust a location of a sound image of the audio signal based on a location of the selected audio object and a location of a visual object corresponding to the selected audio, and an output unit configured to output an audio signal whose the location of the sound image is adjusted.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: December 18, 2018
    Assignee: Gaudio Lab, Inc.
    Inventors: Hyunoh Oh, Jeonghun Seo, Taegyu Lee, Yonghyun Baek
  • Patent number: 10149084
    Abstract: An audio providing apparatus and method are provided. The audio providing apparatus includes: an object renderer configured to render an object audio signal based on geometric information regarding the object audio signal; a channel renderer configured to render an audio signal having a first channel number into an audio signal having a second channel number; and a mixer configured to mix the rendered object audio signal with the audio signal having the second channel number.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: December 4, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-bae Chon, Sun-min Kim, Jae-ha Park, Sang-mo Son, Hyun Jo, Hyun-joo Chung
  • Patent number: 10149081
    Abstract: Provided herein are a headphone amplifier circuit for a headphone driver, an operation method thereof, and a universal serial bus (USB) interfaced headphone device using the same. The output stage of the headphone amplifier circuit is improved to have a differential output structure so as to effectively solve the crosstalk issue and increase the isolation between the left and the right channels such that the audio content presents a spatial perception and a distance perception more specifically.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 4, 2018
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Tsung-Peng Chuang, Shao-Hsun Lee, Cheng-Pin Chang
  • Patent number: 10142727
    Abstract: A directivity control apparatus is provided which controls a directivity of a sound collected by a first sound collector including a plurality of microphones. The directivity control apparatus forms a directivity of the sound in a direction toward a position of a monitoring target in an image displayed on a display. Information on the position of the monitoring target in the image displayed on the display is obtained. The directivity of the sound is changed toward the position of the monitoring target in accordance with a movement of the monitoring target by referring to the obtained information on the position of the monitoring target.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 27, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinichi Shigenaga, Akitoshi Izumi, Kazunori Hayashi, Toshimichi Tokuda, Hirotaka Sawa
  • Patent number: 10134405
    Abstract: Soundfield signals such as e.g. Ambisonics carry a representation of a desired sound field. The Ambisonics format is based on spherical harmonic decomposition of the soundfield, and Higher Order Ambisonics (HOA) uses spherical harmonics of at least 2nd order. However, commonly used loudspeaker setups are irregular and lead to problems in decoder design. A method for improved decoding an audio soundfield representation for audio playback comprises calculating a panning function (W) using a geometrical method based on the positions of a plurality of loudspeakers and a plurality of source directions, calculating a mode matrix (?) from the loudspeaker positions, calculating a pseudo-inverse mode matrix (?+) and decoding the audio soundfield representation. The decoding is based on a decode matrix (D) that is obtained from the panning function (W) and the pseudo-inverse mode matrix (?+).
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: November 20, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Johann-Markus Batke, Florian Keiler, Johannes Boehm
  • Patent number: 10127746
    Abstract: A system for monitoring two or more persons in an area with an entry point having an access allowed indication or an access denied indication. a token device in communication with at least one wireless proximity detection device which determines a relative location of the token device to provide a detection data point for each of the wireless proximity detection devices and a set of detection data points for the group of detection data points; a system computing device which calculates the shared proximity of the token device according to the set of detection data points and determines that the token device contains at least two valid tickets or does not, if there are valid tickets and the shared proximity of the token device is within a predetermined area the access allowed indication will display to allow entry for a number of persons corresponding to the number of the tickets.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 13, 2018
    Inventors: Micah Bergdale, Nicholas Ihm, Gregory Valyer
  • Patent number: 10129409
    Abstract: A system and method for joint acoustic echo control and adaptive array processing, comprising the decomposition of a captured sound field into N sub-sound fields, applying linear echo cancellation to each sub-sound field, selecting L sub-sound fields from the N sub-sound fields, performing L channel adaptive array processing utilizing the L selected sub-sound fields, and applying non-linear audio echo cancellation.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: November 13, 2018
    Assignee: Cisco Technology, Inc.
    Inventor: Haohai Sun
  • Patent number: 10129382
    Abstract: An electronic device receives a first distance signal from a sensor embraced by a left receiver of a headset, and a second distance signal from a sensor embraced by a right receiver of the headset. The electronic device obtains a first distance between the left receiver and a left ear of the person according to the first distance signal, and obtains a second distance between the right receiver and a right ear of the person according to the second distance signal. The electronic device executes a specific operation according to the first distance and the second distance.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: November 13, 2018
    Assignee: FIH (HONG KONG) LIMITED
    Inventor: Chih-Hao Chang
  • Patent number: 10121109
    Abstract: A domain description is received, by a processor, the domain description identifying a domain associated with a sensor input. The domain description is formatted according to a hierarchical naming structure. A training data set is selected from a plurality of training data sets based upon the received domain description and sensor input. A combination of a subset of classifiers for classifying the sensor input is selected from a set of classifiers based upon the selected training data set.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: November 6, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mandis S. Beigi, Seraphin B. Calo, Dinesh C. Verma, Shiqiang Wang, David A. Wood
  • Patent number: 10091592
    Abstract: A binaural hearing system (“system”) preserves and/or enhances interaural level differences (“ILDs”) between first and second signals. The system includes audio detectors each associated with an ear of a user. The audio detectors detect an audio signal presented to the user and generate the first and second signals to represent the audio signal as detected at each ear. The system also includes sound processors associated with each ear that each receive the first and second signals from the audio detectors directly and/or by way of a communication link from the other sound processor. The sound processors each perform operations with respect to the first and second signals to preserve and/or enhance the ILDs between the signals. In so doing, the sound processors perform a contralateral gain synchronization operation to a first degree at the first sound processor and to a distinct second degree at the second sound processor.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 2, 2018
    Assignee: Advanced Bionics AG
    Inventors: Chen Chen, Dean Swan, Leonid M. Litvak
  • Patent number: 10091581
    Abstract: Disclosed herein are system, method, and tangible computer readable medium for creating a desired audio effect for a user. The method includes operations including: causing a plurality of speakers to play test signals, each test signal being specific to one of the speakers; receiving from a remote device recorded frequency responses of the speakers resulting from the playing of the test signals; creating one or more filters to match an audio profile selected by a user; applying the filters to the recorded frequency responses to obtain filtered transformations of the speakers; and transmitting the filtered transformations to the speakers; wherein the filtered transformations are applied at the speakers to thereby achieve the user audio profile.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 2, 2018
    Assignee: Roku, Inc.
    Inventors: Gregory Mack Garner, Patrick Alan Brouillette
  • Patent number: 10085104
    Abstract: An audio decoder device for decoding a compressed input audio signal having at least one core decoder having one or more processors for generating a processor output signal based on a processor input signal, wherein a number of output channels of the processor output signal is higher than a number of input channels of the processor input signal, wherein each of the one or more processors has a decorrelator and a mixer, wherein a core decoder output signal having a plurality of channels has the processor output signal, and wherein the core decoder output signal is suitable for a reference loudspeaker setup; at least one format converter device configured to convert the core decoder output signal into an output audio signal, which is suitable for a target loudspeaker setup; and a control device configured to control at least one or more processors in such way that the decorrelator of the processor may be controlled independently from the mixer of the processor, wherein the control device is configured to contro
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: September 25, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Christian Ertel, Johannes Hilpert, Andreas Hoelzer, Achim Kuntz, Jan Plogsties, Michael Kratschmer
  • Patent number: 10078429
    Abstract: A method for securing a computer system comprising a step of: disguising a password entry screen.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: September 18, 2018
    Assignee: NOWWW.US Pty Ltd.
    Inventor: Mark Rodney Anson
  • Patent number: 10075799
    Abstract: The invention discloses rendering sound field signals, such as Higher-Order Ambisonics (HOA), for arbitrary loudspeaker setups, where the rendering results in highly improved localization properties and is energy preserving. This is obtained by a new type of decode matrix for sound field data, and a new way to obtain the decode matrix.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 11, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Johannes Boehm, Florian Keiler
  • Patent number: 10063984
    Abstract: A system and method are described for transforming stereo signals into mid and side components xm and xs to apply processing to only the side-component xs and avoid processing the mid-component. By avoiding alteration to the mid-component XM, the system and method may reduce the effects of ill-conditioning, such as coloration that may be caused by processing a problematic mid-component xM while still performing crosstalk cancellation and/or generating virtual sound sources. Additional processing may be separately applied to the mid and side components xM and xs and/or particular frequency bands of the original stereo signals to further reduce ill-conditioning.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: August 28, 2018
    Assignee: Apple Inc.
    Inventors: Martin E. Johnson, Sylvain J. Choisel, Daniel K. Boothe, Mitchell R. Lerner
  • Patent number: 10063830
    Abstract: The present invention provides a method of processing a source left view and a source right view of a 3D image comprising the steps of: identifying at least one ghosted region or ghosting region in the left view and/or in the right view; processing the identified regions in order to create a binocular suppression effect for this identified regions then providing a new 3D image formed by the processed left and/or right views.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: August 28, 2018
    Assignee: THOMSON LICENSING DTV
    Inventors: Laurent Blonde, Dar'ya Khaustova, Cedric Thebault
  • Patent number: 10057704
    Abstract: An audio providing apparatus and method are provided. The audio providing apparatus includes: an object renderer configured to render an object audio signal based on geometric information regarding the object audio signal; a channel renderer configured to render an audio signal having a first channel number into an audio signal having a second channel number; and a mixer configured to mix the rendered object audio signal with the audio signal having the second channel number.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: August 21, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-bae Chon, Sun-min Kim, Jae-ha Park, Sang-mo Son, Hyun Jo, Hyun-joo Chung
  • Patent number: 10057708
    Abstract: Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 21, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Charles Q. Robinson, Nicolas R. Tsingos, Christophe Chabanne
  • Patent number: 10051370
    Abstract: A method and an electronic device for outputting an audio signal in the electronic device is provided. The electronic device includes a first speaker, a second speaker, and an audio processor that creates, from an audio signal, a first frequency audio signal corresponding to a first frequency band by using a low pass filter, synthesizes the created first frequency audio signal and the audio signal to create a synthetic audio signal, creates, from the synthetic audio signal, a second frequency audio signal corresponding to a second frequency band by using a high pass filter, outputs the created second frequency audio signal through the first speaker, and outputs the created synthetic audio signal through the second speaker.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 14, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Taiyong Kim, Dongeon Kim, Seungsoo Nam, Juhee Jang, Jeok Lee, Jaehyun Kim, Hochul Hwang
  • Patent number: 10044546
    Abstract: Technology for adjusting a receiver timing of a wireless device in a Coordinated MultiPoint (CoMP) system is disclosed. One method can include the wireless device receiving a plurality of node specific reference signals (RSs) from a plurality of cooperating nodes in a coordination set of the CoMP system. The coordination set includes at least two cooperating nodes. The wireless device can estimate a composite received RS timing from a plurality of received RS timings generated from the plurality of node specific RSs. The received RS timings represent timings from the at least two cooperating nodes. The wireless device can adjust the receiver timing based on the composite received RS timing. A node specific RS can include a channel-state information reference signal (CSI-RS).
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: August 7, 2018
    Assignee: INTEL CORPORATION
    Inventors: Alexei Davydov, Gregory Morozov, Alexander Maltsev, Vadim Sergeyev, Ilya Bolotin
  • Patent number: 10026405
    Abstract: Disclosed is a speaker diarization process for determining which speaker is speaking at what time during the course of a conversation. The entire process can be most easily described in five main parts: Segmentation where speech/non-speech decisions are made; frame feature extraction where useful information is obtained from the frames; segment modeling where the information from the frame feature extraction is combined with segment start and end time information to create segment specific features; speaker decisions when the segments are clustered to create speaker models; and corrections where frame level corrections are applied to the information extracted.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: July 17, 2018
    Assignee: SESTEK Ses velletisim Bilgisayar Tekn. San. Ve Tic A.S.
    Inventors: Mustafa Levent Arslan, Mustafa Erden, Sedat Demirba{hacek over (g)}, Gökçe Sarar
  • Patent number: 10021501
    Abstract: An audio signal processing device for downmixing of a first input signal and a second input signal to a downmix signal having: a dissimilarity extractor configured to receive the first input signal and the second input signal as well as to output an extracted signal, which is lesser correlated with respect to the first input signal than the second input signal and a combiner configured to combine the first input signal and the extracted signal in order to obtain the downmix signal.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 10, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Alexander Adami, Emanuel Habets, Juergen Herre
  • Patent number: 10021507
    Abstract: An arrangement, for reproducing audio data of an acoustic scene, adapted for generating audio signals for at least a first and a second headphone channel of a headphone assembly, the audio signals corresponding to at least one audio object and/or sound source in the acoustic scene comprising at least one given close range and at least one given distant range arranged around a listener, the arrangement comprising a first headphone channel; a second headphone channel; a basic channel provider comprising at least a basic system adapted for reproducing audio signals corresponding to at least one audio object and/or sound source arranged in at least one distant range; a proximity channel provider comprising at least a proximity system adapted for reproducing audio signals corresponding to at least one audio object and/or sound source arranged in at least one close range.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: July 10, 2018
    Assignee: BARCO NV
    Inventors: Markus Mehnert, Robert Steffens, Martin Dausel, Henri Meissner
  • Patent number: 10015578
    Abstract: Apparatus and methods for reducing crosstalk in personal audio equipment are provided. In an example, a method to reduce headset audio crosstalk can include applying a first signal to a first speaker channel of a headset, coupling a second speaker channel to a first input of a comparator of a crosstalk compensation circuit using a first switch of the crosstalk compensation circuit, the switch and detect circuit including the crosstalk compensation circuit, coupling a first resistor divider to a second input of the comparator using a second switch of the crosstalk compensation circuit, and adjusting a resistance setting of the first resistor divider from an initial setting using an output of the comparator.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 3, 2018
    Assignee: Fairchild Semiconductor Corporation
    Inventor: Oscar W. Freitas
  • Patent number: 10015616
    Abstract: This application describes methods of signal processing and spatial audio synthesis. One such method includes accepting an auditory signal and generating an impression of auditory virtual reality by processing the auditory signal to impute a spatial characteristic on it via convolution with a plurality of head-related impulse responses. The processing is performed in a series of steps, the steps including: performing a first convolution of an auditory signal with a characteristic-independent, mixed-sign filter and performing a second convolution of the result of first convolution with a characteristic-dependent, sparse, non-negative filter. In some described methods, the first convolution can be pre-computed and the second convolution can be performed in real-time, thereby resulting in a reduction of computational complexity in said methods of signal processing and spatial audio synthesis.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: July 3, 2018
    Assignee: University of Maryland, College Park
    Inventors: Yuancheng Luo, Ramani Duraiswami, Dmitry N. Zotkin
  • Patent number: 10008993
    Abstract: The audio amplifier includes a variable gain amplifier receiving the input audio signal and providing the output signal, whereby the output signal corresponds to the input signal amplified by a limiter gain. The audio amplifier further includes a limiter gain calculation unit, thus the input signal is amplified by the limiter gain. A control unit receives a signal representative of the input signal and is configured to estimate, based on a mathematical model, the input current or the total output current of the audio amplifier thus providing an estimated current signal corresponding to (and resulting from) the output signal, whereby the limiter gain calculation unit is configured to calculate, dependent on the estimation, the limiter gain such that the actual input current or the total output current of the audio amplifier does not exceed a threshold current value.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 26, 2018
    Assignee: Harman Becker Automotive Systems GmbH
    Inventors: Gerhard Pfaffinger, Franz Lorenz, Stefan Zuckmantel, Markus Christoph
  • Patent number: 10008217
    Abstract: A multi-rate audio processing system and method provides real-time measurement and processing of amplitude/phase changes in the transition band of the lowest frequency subband caused by the audio processing that can be used to apply amplitude/phase compensation to the higher subband(s). Tone signals may be injected into the transition band to provide strong tonal content for measurement and processing. The real-time measurement and compensation adapts to time-varying amplitude/phase changes regardless of the source of the change (e.g. non-linear time-varying linear or user control parameters) and provides universal applicability for any linear audio processing.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 26, 2018
    Assignee: DTS, INC.
    Inventors: Daekyoung Noh, Themis Katsianos
  • Patent number: 9998846
    Abstract: The present technology relates to an acoustic signal processing device, an acoustic signal processing method, and a program capable of improving a feeling of localization of a sound image at a position deviated leftward or rightward from a median plane of a listener. A transaural processing unit performs a predetermined transaural process for an input signal by using a sound source opposite side HRTF and a sound source side HRTF to generate a first acoustic signal, and a second acoustic signal containing attenuated components in a first band which is the lowest band, and a second band which is the second lowest band in a range of a predetermined first frequency or higher frequencies, in bands of appearance of notches in the sound source opposite side HRTF. A subsidiary signal synthesis unit adds a first subsidiary signal constituted by a component in a predetermined band of the second acoustic signal to the first acoustic signal to generate a third acoustic signal.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 12, 2018
    Assignee: SONY CORPORATION
    Inventor: Kenji Nakano
  • Patent number: 9980077
    Abstract: A method of interpolating a head-related transfer function (HRTF) and an audio output apparatus using the same are disclosed. The method includes receiving HRTF data corresponding to a point at which an altitude angle and an azimuth angle cross and receiving complementary information about a point at which the HRTF data is present, generating an HRTF interpolation signal corresponding to an altitude angle of a sound localization point, using HRTF data corresponding to two points constituting an altitude angle segment nearest the sound location point, calculating an amount of variation up to an azimuth angle ? of the sound localization point, using complementary information of two points constituting an azimuth angle segment nearest the sound localization point, and generating a final HRTF interpolation signal corresponding to the sound localization point by applying the amount of variation to the HRTF interpolation signal corresponding to the altitude angle of the sound localization point.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: May 22, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Tung Chin Lee, Jongyeul Suh, Ling Li
  • Patent number: 9972106
    Abstract: The present disclosure is directed towards systems, methods and devices for tamper proofing documents by embedding data in a biometric identifier. The biometric identifier may be a real or synthetic fingerprint. In one non-limiting exemplary embodiment, a method for embedding data in a biometric identifier includes determining data to embed in the biometric identifier, determining at least one control parameter, and generating at least one biometric identifier feature. The method further includes including the at least one generated biometric identifier feature in the biometric identifier such that the determined data is embedded in the biometric feature. The determined data is based on a variable data stream. The control parameter controls the generation of at least one biometric identifier feature. The control parameter is based on the determined data. The generated biometric identifier feature is based on the determined control parameter.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: May 15, 2018
    Assignee: TIGERIT AMERICAS, LLC
    Inventors: Slobodan Cvetkovic, Andrey Nikiforov