Broadcast Or Multiplex Stereo Patents (Class 381/2)
  • Patent number: 11252247
    Abstract: A method, computer system, and a computer program product for interest-based digital content caching is provided. Hints regarding content of interest associated with a user are determined and used to identify portions of streaming media that are uninteresting to the user. Then the streaming media is played for the user and a portion of the post-uninteresting content is stored in a child cache before the portion of uninterest is played.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: February 15, 2022
    Assignee: International Business Machines Corporation
    Inventors: Deepak R. Ghuge, Sasikanth Eda, Sandeep Ramesh Patil, Manojkiran Eda
  • Patent number: 11232804
    Abstract: The present disclosure relates to methods and apparatus for audio coding. A method of encoding a portion of an audio signal comprises determining whether the portion of the audio signal is likely to contain dense transient events, and if it is determined that the portion of the audio signal is likely to contain dense transient events, quantizing the portion of the audio signal using a quantization 5 mode that applies a substantially constant signal-to-noise ratio over frequency for the portion of the audio signal. The present disclosure further relates to a method of detecting dense transient events in a portion of an audio signal.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: January 25, 2022
    Assignee: Dolby International AB
    Inventors: Arijit Biswas, Michael Schug, Harald Mundt
  • Patent number: 11132984
    Abstract: There are disclosed automatic mixers and methods for creating a surround audio mix. A set of rules may be stored in a rule base. A rule engine may select a subset of the set of rules based, at least in part, on metadata associated with a plurality of stems. A mixing matrix may mix the plurality of stems in accordance with the selected subset of rules to provide three or more output channels.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 28, 2021
    Assignee: DTS, Inc.
    Inventors: Zoran Fejzo, Fred Maher
  • Patent number: 11133013
    Abstract: Methods and systems encoding a stereo audio signal having a left channel and a right channel are disclosed. The system includes a downmixer for generating a downmix signal and a residual signal from the stereo audio signal in selected frequency bands representing only part of a used audio frequency range of the stereo audio signal, and a decision module for selecting, in a time variant manner, either left/right perceptual encoding or mid/side perceptual encoding. The system also includes a parameter estimator for estimating stereo parameters for reconstructing a stereo image of a portion of the stereo audio signal, and a perceptual encoder for performing either left/right perceptual encoding or mid/side perceptual encoding based on the selecting to generate an encoded output signal. Finally, the system includes a bitstream generator for creating a bitstream signal comprising the encoded output signal.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: September 28, 2021
    Assignee: Dolby International AB
    Inventors: Heiko Purnhagen, Pontus Carlsson, Kristofer Kjoerling
  • Patent number: 11102565
    Abstract: Methods for communicating audio and voice signals as well as hearable devices therefor are disclosed. A disclosed method includes creating an audio and voice Bluetooth communication link between a computing device and a hearable device. The audio and voice Bluetooth communication link includes a downlink and an uplink. The method further includes configuring the downlink with a downlink audio codec and the uplink with an uplink voice codec and receiving, by the hearable device through the downlink, a channel of a downlink audio signal from the computing device. The channel is encoded with the downlink audio codec. The method further includes transmitting, to the computing device, an uplink voice signal by the hearable device through the uplink. The uplink voice signal is encoded with the uplink voice codec.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: August 24, 2021
    Assignee: TAP Sound System
    Inventors: Thomas Girardier, Antoine Soulier
  • Patent number: 10966046
    Abstract: An audio rendering system includes a processor that combines audio input signals with personalized spatial audio transfer functions preferably including room responses. The personalized spatial audio transfer functions are selected from a database having a plurality of candidate transfer function datasets derived from in-ear microphone measurements for a plurality of individuals. Alternatively, the personalized transfer function datasets are derived from actual in-ear measurements of the listener. Foreground and background positions are designated and matched with transfer function pairs from the selected dataset for the foreground and background direction and distance. Two channels of input audio such as voice and music are processed. When a voice communication such as a phone call is accepted the music being rendered is moved from a foreground to a background channel corresponding to a background spatial audio position using the personalized transfer functions.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 30, 2021
    Assignee: Creative Technology Ltd
    Inventors: Wong Hoo Sim, Teck Chee Lee
  • Patent number: 10904666
    Abstract: An audio rendering device includes: at least one wireless communications interface configured to receive a first plurality of audio packets from a wireless communication device, the first plurality of audio packets including frames of audio data for a first audio channel from a set of one or more audio channels; and a processing unit; wherein the audio rendering device is configured to release, at respective first buffer release times, the frames of the audio data for the first audio channel from a first buffer for rendering by the processing unit; wherein the audio rendering device is configured to receive one or more messages from an other audio rendering device; and wherein the audio rendering device is configured to synchronize the first buffer release times with second buffer release times associated with the other audio rendering device based on the received one or more messages.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: January 26, 2021
    Assignee: GN Hearing A/S
    Inventors: Thorkild Find Pedersen, Brian Dam Pedersen
  • Patent number: 10885221
    Abstract: A system, method and program product for obfuscating audible messages in a listening space A system is provided that includes an orchestrator having: an invocation detection system that triggers an obfuscation event; a system for selecting injector nodes in the listening space for the obfuscation event; and a key management system that distributes keys, derived from a natural interface key, to the injector nodes to cause the injector nodes to inject sounds into the listening space to obfuscate an audible message broadcast by a source node for a target node; and a machine learning system that calculates the natural interface key based on interactions captured from the source node in the listening space.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: January 5, 2021
    Assignee: International Business Machines Corporation
    Inventors: Todd R. Whitman, Aaron K. Baughman, David Bastian, Nicholas A. McCrory
  • Patent number: 10863288
    Abstract: An input transducer (11, 12) of a hearing aid (10) converts audio from the environment into an electric input signal. A signal processor (13) amplifies and conditions the electric input signal according to a preset set of audio processing parameters, and an output transducer (14) reproduces output audio. The hearing aid (10) is connected with a personal communication device (20) via a short range radio communication link (15, 29). The personal communication device (20) identifies music included in the background noise. The personal communication device (20) retrieves a music stream based on the identified music, and streams the music stream to the hearing aid (10). The signal processor (13) of the hearing aid (10) combines the input signal from the input transducer (11, 12) and music signal in order to reduce the presence of the music included in the background noise from the audio signal delivered by the output transducer (14).
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: December 8, 2020
    Assignee: Widex A/S
    Inventor: Michael Ungstrup
  • Patent number: 10796703
    Abstract: Methods and systems encoding a stereo audio signal having a left channel and a right channel are disclosed. The system includes a downmixer for generating a downmix signal and a residual signal from the stereo audio signal in selected frequency bands representing only part of a used audio frequency range of the stereo audio signal, and a decision module for selecting, in a time variant manner, either left/right perceptual encoding or mid/side perceptual encoding. The system also includes a parameter estimator for estimating stereo parameters for reconstructing a stereo image of a portion of the stereo audio signal, and a perceptual encoder for performing either left/right perceptual encoding or mid/side perceptual encoding based on the selecting to generate an encoded output signal. Finally, the system includes a bitstream generator for creating a bitstream signal comprising the encoded output signal.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: October 6, 2020
    Assignee: Dolby International AB
    Inventors: Heiko Purnhagen, Pontus Carlsson, Kristofer Kjoerling
  • Patent number: 10743123
    Abstract: Some embodiments include a system for delivery of binaural audio to a consumer including a computing device with a processor, a non-transitory computer readable medium having stored instructions that when executed by the computing device, cause the computing device to perform operations for delivery of the binaural audio to the consumer through the consumer device. The operations can enable a delivery server to associate the consumer device with a binaural audio file associated with the event attended by the consumer. The operations can enable the consumer device to retrieve and download a binaural audio file from the delivery server, and to receive synchronization information associated with the event and the binaural audio file. The operations can also include processing the binaural audio file and delivering audio through an audio emitting device coupled to the consumer device, where the delivered audio is synchronized with the event.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: August 11, 2020
    Assignee: SOUNDFI SYSTEMS, LLC
    Inventor: Chris T. Anastas
  • Patent number: 10728730
    Abstract: A headset, which may be configured to process audio for a player participating in an online multiplayer game, may support auto-pairing with audio basestations. In this regard, an audio basestation may be utilized in communicating game and chat audio content from an associated game console to a paired headset and in communicating microphone audio from the paired headset to the console. The auto-pairing may comprise automatically exchanging signals with an audio basestation, in response to the headset coming within a determined distance of the audio basestation; and pairing with the audio basestation based on processing of the exchanged signals. The pairing may result in establishing one or more wireless links for game and chat audio to be communicated to the headset and microphone audio to be communicated from the headset. The determined distance may correspond to physical contact (e.g., tapping) between the headset and the basestation.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: July 28, 2020
    Assignee: VOYETRA TURTLE BEACH, INC.
    Inventors: Richard Kulavik, Michael A. Jessup
  • Patent number: 10727858
    Abstract: A source device comprising a memory and a processor may be configured to perform techniques described in this disclosure. The memory may store at least a portion of the audio data. The processor may obtain, from a compressed version of the audio data, a symbol, and obtain a plurality of intervals, each having a same bit length. The processor may obtain a portion of the symbol within the bit length and an excess portion of the symbol over the bit length, and specify, in a first interval, the portion of the symbol. The processor may also specify, in a second interval, the excess portion of the symbol, and apply, to the first interval and the second interval, error resiliency. The processor may specify, in a bitstream representative of the compressed version of the audio data, the first error resilient interval and the second error resilient interval.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: July 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Richard Turner, Justin Hundt, Gary Sands, Laurent Wojcieszak
  • Patent number: 10685662
    Abstract: An apparatus for encoding an audio or image signal, includes: a controllable windower for windowing the audio or image signal to provide the sequence of blocks of windowed samples; a converter for converting the sequence of blocks of windowed samples into a spectral representation including a sequence of frames of spectral values; a transient location detector for identifying a location of a transient within a transient look-ahead region of a frame; and a controller for controlling the controllable windower to apply a specific window having a specified overlap length to the audio or image signal in response to an identified location of the transient, wherein the controller is configured to select the specific window from a group of at least three windows, wherein the specific window is selected based on the transient location.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: June 16, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der andewandten Forschung e.V.
    Inventors: Christian Helmrich, Jérémie Lecomte, Goran Markovic, Markus Schnell, Bernd Edler, Stefan Reuschl
  • Patent number: 10629213
    Abstract: Methods and apparatus to perform windowed sliding transforms are disclosed.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 21, 2020
    Assignee: The Nielsen Company (US), LLC
    Inventors: Zafar Rafii, Markus Cremer, Bongjun Kim
  • Patent number: 10575111
    Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: February 25, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Jeong Il Seo, Dae Young Jang, Yong Ju Lee, Jin Woong Kim
  • Patent number: 10515644
    Abstract: Methods for generating an object based audio program which is renderable in a personalizable manner, e.g., to provide an immersive, perception of audio content of the program. Other embodiments include steps of delivering (e.g., broadcasting), decoding, and/or rendering such a program. Rendering of audio objects indicated by the program may provide an immersive experience. The audio content of the program may be indicative of multiple object channels (e.g., object channels indicative of user-selectable and user-configurable objects, and typically also a default set of objects which will be rendered in the absence of a selection by a user) and a bed of speaker channels. Another aspect is an audio processing unit (e.g., encoder or decoder) configured to perform, or which includes a buffer memory which stores at least one frame (or other segment) of an object based audio program (or bitstream thereof) generated in accordance with, any embodiment of the method.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 24, 2019
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Robert Andrew France, Thomas Ziegler, Sripal S. Mehta, Andrew Jonathan Dowell, Prinyar Saungsomboon, Michael David Dwyer, Farhad Farahani, Nicolas R. Tsingos, Freddie Sanchez
  • Patent number: 10490197
    Abstract: A method of processing an audio signal includes receiving an audio bitstream encoded via MPEG Surround 212 (MPS212); generating an internal channel (IC) signal for a single channel pair element (CPE), based on the received audio bitstream, equalization (EQ) values for MPS212 output channels defined in a format converter, and gain values for the MPS212 output channels; and generating stereo output channels, based on the generated IC signal.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: November 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-min Kim, Sang-bae Chon
  • Patent number: 10449797
    Abstract: A portable device uses a microphone to listen to ambient audio, ascertains a corresponding identifier, and uses the identifier to enable one or more further functions. One of these can be internet search. Such functionality can also be based on digital data—without requiring a microphone-equipped device.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: October 22, 2019
    Assignee: DIGIMARC CORPORATION
    Inventor: Geoffrey B. Rhoads
  • Patent number: 10382849
    Abstract: Apparatus including: an audio capture application configured to determine separate microphones from a plurality of microphones and identify a sound source direction of at least one audio source within an audio scene by analyzing respective two or more audio signals from the separate microphones, wherein the audio capture application is further configured to adaptively select, from the plurality of microphones, two or more respective audio signals based on the determined direction and furthermore configured to select, from the two or more respective audio signals, a reference audio signal also based on the determined direction; and a signal generator configured to generate a mid signal representing the at least one audio source based on a combination of the selected two or more respective audio signals and with reference to the reference audio signal.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: August 13, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Mikko-Ville Laitinen, Mikko Tammi, Miikka Vilermo
  • Patent number: 10341800
    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: July 25, 2018
    Date of Patent: July 2, 2019
    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: 10334381
    Abstract: Some embodiments include a system for delivery of binaural audio to a consumer including a computing device with a processor, a non-transitory computer readable medium having stored instructions that when executed by the computing device, cause the computing device to perform operations for delivery of the binaural audio to the consumer through the consumer device. The operations can enable a delivery server to associate the consumer device with a binaural audio file associated with the event attended by the consumer. The operations can enable the consumer device to retrieve and download a binaural audio file from the delivery server, and to receive synchronization information associated with the event and the binaural audio file. The operations can also include processing the binaural audio file and delivering audio through an audio emitting device coupled to the consumer device, where the delivered audio is synchronized with the event.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 25, 2019
    Assignee: SOUNDFI SYSTEMS, LLC
    Inventor: Chris T. Anastas
  • Patent number: 10244263
    Abstract: Methods of data encoding using trees formed with logic gates are described which lead to spatial compression of image data. Data encoding is achieved using a five-level wavelet transform, such as the Haar or the 2/10 transform. A dual transform engine is used, the first and engine being used for the first part of the first-level transform, the second part of the first-level transform and the subsequent-level transforms being performed by the second transform engine within a time interval which is less than or equal to the time taken by the first transform engine to effect the part-transform. Each bit plane of the resulting coefficients is then encoded by forming a tree structure from the bits and OR logical combinations thereof. Redundant data are removed from the resulting tree structure, and further data can be removed by using a predetermined compression profile.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 26, 2019
    Assignee: RGB SYSTEMS, INC.
    Inventor: Peter Lionel Smith
  • Patent number: 10243675
    Abstract: Provided is a mobile device including: an input reception unit for receiving at least one input through a user interface; a control information determination unit for determining control information corresponding to an operation of an external device based on the at least one input, wherein the control information includes a first symbol and a second symbol; a sound wave data generation unit for generating sound wave data corresponding to the control information; and an output unit for outputting a sound wave corresponding to the sound wave data generated by a sound wave generation apparatus. In this case, the sound wave data generation unit determines a first frequency corresponding to the first symbol and a second frequency corresponding to the second symbol, and generates the sound wave data based on the first frequency and the second frequency, and the sound wave data includes a portion corresponding to the first frequency and a portion corresponding to the second frequency.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: March 26, 2019
    Assignee: POWERVOICE CO., LTD.
    Inventors: Hee Suk Jeong, Se Hun Chin, Hyung Yup Lee
  • Patent number: 10237673
    Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 19, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Jeong Il Seo, Dae Young Jang, Yong Ju Lee, Jin Woong Kim
  • Patent number: 10165382
    Abstract: A signal processing device includes a selector configured to select one of a plurality of methods, in accordance with which a signal generation process is performed for generating a transfer signal in which additional information is added to an audio signal; a signal processor configured to execute the signal generation process of adding the additional information to the audio signal in accordance with the method selected by the selector; and a transferrer configured to transfer to a reproduction device the transfer signal generated by the signal processor.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: December 25, 2018
    Assignee: YAMAHA CORPORATION
    Inventors: Ryotaro Aoki, Atsushi Usui, Masaya Kano, Kotaro Nakabayashi, Yuta Yuyama
  • Patent number: 10045103
    Abstract: A kinesthetic speaker usage system provides a speaker connected to a housing about a cavity into which the sound from the speaker is directed. The housing has an exterior surface in tactile communication with a retainer which can direct vibration directly or directly to a user, such as a person. Many embodiments utilize a pipe for the housing, such as a flexible pipe.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 7, 2018
    Inventors: Stephen Mason, Scott Geller
  • Patent number: 10037297
    Abstract: A method for extending the range of isochronous USB data transfer, by providing a local extender and a remote extender, coupled respectively to the USB host and the USB device, and coupled to each other via a non-USB cable. After receiving a first In-token from the host, the local extender transmits a first data packet to the host, which contains a data payload having a non-zero length; the data is either generated by the first extender, or previously received from the USB device and stored in a buffer. The local extender forwards the first In-token to the USB device via the remote extender; in response, the USB device generates a second data packet containing requested data and transmits it to the local extender via the remote extender. The local extender stores the second data packet and transmits it to the host in response to a second In-token from the host.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 31, 2018
    Assignee: ATEN International Co., Ltd.
    Inventors: Xinbo Li, Ge Wang
  • Patent number: 9997164
    Abstract: Methods for generating an object based audio program which is renderable in a personalizable manner, e.g., to provide an immersive, perception of audio content of the program. Other embodiments include steps of delivering (e.g., broadcasting), decoding, and/or rendering such a program. Rendering of audio objects indicated by the program may provide an immersive experience. The audio content of the program may be indicative of multiple object channels (e.g., object channels indicative of user-selectable and user-configurable objects, and typically also a default set of objects which will be rendered in the absence of a selection by a user) and a bed of speaker channels. Another aspect is an audio processing unit (e.g., encoder or decoder) configured to perform, or which includes a buffer memory which stores at least one frame (or other segment) of an object based audio program (or bitstream thereof) generated in accordance with, any embodiment of the method.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 12, 2018
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Robert Andrew France, Thomas Ziegler, Sripal S. Mehta, Andrew Jonathan Dowell, Prinyar Saungsomboon, Michael David Dwyer, Farhad Farahani, Nicolas R. Tsingos, Freddie Sanchez
  • Patent number: 9942584
    Abstract: An example apparatus to generate media monitoring information includes a processor to collect a first data record corresponding to a first media presentation session, and collect a second data record corresponding to a second media presentation. The example apparatus also includes a memory in circuit with the processor, the memory to: store a first end timestamp in the first data record indicative of a first time at which the first media presentation session ended; store a second end timestamp in the second data record indicative of a second time at which the second media presentation session ended; and store the first end timestamp in the second data record.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 10, 2018
    Assignee: The Nielsen Company (US), LLC
    Inventors: David H. Wright, Kamal Nasser, Jeff L. Herrmann, Arun Ramaswamy, Brian Scott Mello
  • Patent number: 9917952
    Abstract: Example embodiments disclosed herein relate to an evaluation of perceptual delay impact on a conversation. A method of evaluating perceptual delay impact on a conversation is disclosed. The method includes detecting a conversational event between a first participant and a second participant, the conversational event including a plurality of speech segments; in response to the conversational event being detected, obtaining at least one conversational parameter for the first and second participants, the at least one conversational parameter indicating a relationship between the plurality of speech segments in the conversational event; and determining a quality of the conversation according to a model based on the at least one conversational parameter, the model characterizing the quality with the at least one conversational parameter. A method of obtaining a model for evaluating perceptual delay impact on a conversation is also disclosed. Corresponding systems and computer program products are also disclosed.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 13, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Kai Li, Doh-Suk Kim
  • Patent number: 9913034
    Abstract: A method for determining a connection order of nodes on a powered audio bus by having the nodes draw power from the powered audio bus, measure the power consumed downstream, determine who is the last node on the bus, and transmit an identifier of the last node to the bus driver.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 6, 2018
    Assignee: MUSIC GROUP IP LTD
    Inventor: Lars Arknaes-Pedersen
  • Patent number: 9906883
    Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: February 27, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Jeong Il Seo, Dae Young Jang, Yong Ju Lee, Jin Woong Kim
  • Patent number: 9854373
    Abstract: A headphone socket that includes: a headphone socket body and a spring plate part; the spring plate part is clamped into the headphone socket body, and the spring plate part includes: a microphone spring plate, a grounded spring plate, a right-earpiece spring plate, a charging detection availability identifying spring plate, a headphone availability detection spring plate, and a left-earpiece spring plate; and when a headphone plug of headphones is completely inserted into the headphone socket, the charging detection availability identifying spring plate is in contact with a right-channel terminal of the headphone plug, so as to conduct a connection between the right-channel terminal and an external circuit, so that a device at which the headphone socket is located charges the headphones by using the microphone spring plate that is in contact with a microphone terminal of the headphone plug.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 26, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xuelong Liu, Huogen Kuang, Wei Su
  • Patent number: 9788139
    Abstract: A headset, which may be configured to process audio for a player participating in an online multiplayer game, may support auto-pairing with audio basestations. In this regard, an audio basestation may be utilized in communicating game and chat audio content from an associated game console to a paired headset and in communicating microphone audio from the paired headset to the console. The auto-pairing may comprise automatically exchanging signals with an audio basestation, in response to the headset coming within a determined distance of the audio basestation; and pairing with the audio basestation based on processing of the exchanged signals. The pairing may result in establishing one or more wireless links for game and chat audio to be communicated to the headset and microphone audio to be communicated from the headset. The determined distance may correspond to physical contact (e.g., tapping) between the headset and the basestation.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: October 10, 2017
    Assignee: Voyetra Turtle Beach, Inc.
    Inventors: Richard Kulavik, Michael A. Jessup
  • Patent number: 9672832
    Abstract: There is provided an audio encoder comprising a determination part determining, based on frequency spectra of audio signals of a plurality of channels, a mixing ratio as a ratio, relative to a frequency spectrum after mixing for each channel of the plurality of channels, of the frequency spectrum for another channel, a mixing part mixing the frequency spectra of the plurality of channels for each channel based on the mixing ratio determined by the determination part, and an encoding part encoding the frequency spectra of the plurality of channels after mixing by the mixing part.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: June 6, 2017
    Assignee: Sony Corporation
    Inventors: Yasuhiro Toguri, Yuuji Maeda, Jun Matsumoto, Shiro Suzuki, Yuuki Matsumura
  • Patent number: 9609383
    Abstract: Technology is described for providing audio for digital content. The digital content may be provided to a plurality of devices. Each device may be associated with a profile. At least one group of profiles may be identified from the plurality of devices that share an affiliation. The group of profiles may be represented as a group of environment objects in the digital content. A location may be identified within the digital content that corresponds to the group of environment objects. Audio may be received for the devices. The audio may be received while the digital content is being transmitted to the plurality of devices. The audio may be transmitted to the plurality of devices for directional audio playback. The audio may be directed to correspond with the virtual location of the at least one group of environment objects in the digital content.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 28, 2017
    Assignee: Amazon Technologies, Inc.
    Inventor: Alistair Robert Hirst
  • Patent number: 9588566
    Abstract: Suppression of interference across transceivers integrated on a single semiconductor chip. An example of a method of reducing noise in a transceiver includes introducing an adjustable time delay into a signal between a first section of a signal path into which noise may be introduced and a second section of the signal path into which noise may be introduced. The method also includes selectively adjusting the time delay and signal polarity to improve a signal-to-noise metric of the transceiver. An example of the transceiver includes a transmitter and a receiver. The transceiver also includes an adjustable time delay between a first section of a transceiver signal path into which noise may be introduced and a second section of the transceiver signal path into which noise may be introduced and circuitry for reducing noise by adjusting a value of the time delay.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 7, 2017
    Assignee: Texas Instruments Incorporated
    Inventors: Jaiganesh Balakrishnan, Sriram Murali
  • Patent number: 9564138
    Abstract: The present invention relates to a method and device for encoding or decoding an object audio signal or rendering the object audio signal in a three-dimensional space. The method for processing an audio signal, according to one aspect of the present invention, comprises the steps of: generating a first object signal group and a second object signal group obtained by classifying a plurality of object signals according to a determined method; generating a first down-mix signal for the first object signal group; generating a second down-mix signal for the second object signal group; generating first object extraction information in correspondence with the first down-mix signal with respect to object signals included in the first object signal group; and generating second object extraction information in correspondence with the second down-mix signal with respect to object signals included in the second object signal group.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 7, 2017
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Hyun Oh Oh, Jeongook Song, Myungsuk Song, Sewoon Jeon, Taegyu Lee
  • Patent number: 9542951
    Abstract: An apparatus for processing an audio signal and method thereof, the method including receiving a downmix signal including at least one normal object signal, and a bitstream including object information determined when the downmix signal is generated; extracting, from an extension part of the bitstream, an extension type identifier indicating whether the downmix signal further includes a multi-channel object signal; generating spatial information using the object information and mix information when mode information indicates that the multi-channel object signal is to be suppressed and the extension type identifier indicates that the downmix signal further includes the multi-channel object signal; and transmitting spatial information. The mix information is to control an object position or an object level of the at least one normal object signal.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 10, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyen-O Oh, Yang Won Jung
  • Patent number: 9530419
    Abstract: A stereophonic signal is converted into a mid channel signal and a side channel signal. Noise is added to the side channel signal. The amount of noise is selected depending on masking thresholds for at least two channels of the stereophonic signal. The mid channel signal and the modified side channel signal are quantized for transmission. Alternatively or in addition, a set of quantization parameter for the quantization of the side channel signal is selected depending on the masking thresholds.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: December 27, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Miikka Tapani Vilermo, Lasse Juhani Laaksonen
  • Patent number: 9484039
    Abstract: An apparatus for processing an audio signal and method thereof, the method including receiving a downmix signal including at least one normal object signal, and a bitstream including object information determined when the downmix signal is generated; extracting an extension type identifier indicating whether the downmix signal further includes a multi-channel object signal, from an extension part of the bitstream; extracting spatial information from the bitstream when the extension type identifier indicates that the downmix signal further includes the multi-channel object signal; and transmitting spatial information when mode information indicates that the least one normal object signal is to be suppressed. The spatial information is determined when a multi-channel source signal is downmixed into the multi-channel object signal. The mix information is to control an object position or an object level of the at least one normal object signal.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 1, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyen-O Oh, Yang Won Jung
  • Patent number: 9473852
    Abstract: A method for pre-processing a channelized music signal to improve perception and appreciation for a hearing prosthesis recipient. In one example, the channelized music signal is a stereo input signal. A device, such as a handheld device, hearing prosthesis, or audio cable, for example, applies a mask to a stereo input signal to extract a center-mixed component from the stereo signal and outputs an output signal comprised of a weighted combination of the extracted center-mixed component and a residual signal comprising a non-extracted part of the stereo input signal. The center-mixed component may contain components, such as leading vocals and/or drums, preferred by hearing prosthesis recipients relative to other components, such as backing vocals or other instruments.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: October 18, 2016
    Assignee: Cochlear Limited
    Inventor: Wim Buyens
  • Patent number: 9397683
    Abstract: Reduced digital audio sampling rates are described in a digital audio processing chain. In one embodiment, an audio signal is received. A convolution operation is performed on the received audio signal. The convoluted audio signal is sampled. An interrupt is received to process the audio sample, and the sample is processed in response to the interrupt. The processed samples are collected to form a frame and the frame is transmitted to a remote device.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 19, 2016
    Assignee: Intel Corporation
    Inventors: Phani Kumar Nyshadham, Niranjan Avadhanam, Sreekanth Nakkala
  • Patent number: 9398294
    Abstract: An encoder/decoder is based on a combination of two audio or video channels to obtain a first combination signal as a mid-signal and a residual signal derivable using a predicted side signal derived from the mid-signal. A decoder uses the prediction residual signal, the first combination signal, a prediction direction indicator and prediction information to derive decoded first channel and second channel signals. A real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. The prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: July 19, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Julien Robillard, Matthias Neusinger, Christian Helmrich, Johannes Hilpert, Nikolaus Rettelbach, Sascha Disch, Bernd Edler
  • Patent number: 9311925
    Abstract: The invention relates to a method and an apparatus in which samples of at least a part of an audio signal of a first channel and a part of an audio signal of a second channel are used to produce a sparse representation of the audio signals to increase the encoding efficiency. In an example embodiment one or more audio signals are input and relevant auditory cues are determined in a time-frequency plane. The relevant auditory cues are combined to form an auditory neurons map. Said one or more audio signals are transformed into a transform domain and the auditory neurons map is used to form a sparse representation of said one or more audio signal.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: April 12, 2016
    Assignee: Nokia Technologies Oy
    Inventor: Juha Ojanperä
  • Patent number: 9312972
    Abstract: Systems and methods are disclosed that may be implemented to process a received RF spectrum that includes both analog modulated and digitally modulated RF signals to blend between a digital demodulated signal and an analog demodulated signal obtained from the received RF spectrum prior to performing one or more signal quality mitigation operations on the blended signal (e.g., such as stereo blend, hi-cut, etc.). In one embodiment, the digital demodulated signal and the analog demodulated signal may include at least some of the same information, e.g., such as information from simulcast digital and analog channels that are obtained from the same received RF spectrum.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 12, 2016
    Assignee: Silicon Laboratories Inc.
    Inventor: Javier Elenes
  • Patent number: RE46684
    Abstract: Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: January 23, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Corey I. Cheng, Michael J. Smithers, David N. Lathrop
  • Patent number: RE48210
    Abstract: Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: September 15, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Corey I. Cheng, Michael J. Smithers
  • Patent number: RE48271
    Abstract: Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 20, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Corey I. Cheng, Michael J. Smithers