Automatic Patents (Class 381/107)
  • Patent number: 10412479
    Abstract: A headset power management system provides robust and low-power operation by detecting various connection conditions by measuring a voltage at the microphone terminal with and without injection of current from the headset. A power management circuit controls an operating state of the headset using a microphone terminal voltage detector and can determine whether a short circuit is present indicating a connection to a device that does not have a microphone input, a negative polarity voltage is present indicating that the device may be determining a connection and type of the headset using the microphone terminal, a normal connection, or whether the headset is not connected to a device at all. Depending on the connection state, some or all of the headset electronics may be disabled until a normal connection is detected. For example the microphone processing circuits may be disabled if the connection does not support a microphone input.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: September 10, 2019
    Assignee: CIRRUS LOGIC, INC.
    Inventors: Xin Zhao, Bradley A. Lambert, Xiaofan Fei, Eric J. Swanson
  • Patent number: 10403302
    Abstract: Systems and methods for isolating audio content and biometric authentication include receiving, with an audio receiver, an audio signal spanning a plurality of frequency bands, identifying a speech signal carried by a voice frequency band selected from the plurality of frequency bands, enhancing the speech signal relative to other audio content within the audio signal, and extracting a voice profile key that uniquely identifies the speech signal, wherein enhancing the first speech signal comprises adjusting attack and release times of the speech signal based on sound events within the speech signal, the attack time being associated with very high frequency sounds that are not phase-shifted.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 3, 2019
    Assignee: YOBE, INC.
    Inventors: James Christopher Fairey, Kenneth Sutton
  • Patent number: 10405092
    Abstract: Brownout management for an audio amplification system. An audio amplification system includes audio volume control circuitry, audio sample interpolation circuitry, and brownout management circuitry. The brownout management circuitry includes brownout detection circuitry and brownout response circuitry. The brownout detection circuitry is configured to determine whether a voltage of a battery that powers the audio amplification system is below a brownout threshold, and to generate a brownout detection signal that indicates the voltage is below the brownout threshold. The brownout response circuitry is coupled to an audio output of the audio sample interpolation circuitry. The brownout response circuitry is configured to attenuate the audio samples output by the audio sample interpolation circuitry responsive to the brownout detection signal indicating that the voltage is below the brownout threshold.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 3, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Uttam Kumar Agarwal, Prateek Jain, Nageswara Rao, Mukund Navada, Pradeep Chandar Chandramouli
  • Patent number: 10354692
    Abstract: Techniques of playing back a looping video file involve providing multiple video codecs for decoding a video file. Each video codec performs its own decoding operation on the looping video file, resulting in multiple buffers of video frames and a buffer of audio frames. Then, as the GPU renders the ending video frames from a first buffer, it begins rendering the beginning video frames from a second buffer. In this way, the beginning of a next video cycle is already rendered for viewing by the time a current video cycle is ending.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 16, 2019
    Assignee: Twitter, Inc.
    Inventors: Zhong Sheng Wang, Ryan Matthew Gordon
  • Patent number: 10347093
    Abstract: A system includes a processor, an audio display, and a haptic peripheral including a haptic output device. The audio display includes a speaker and a headphone connector. The haptic output device is configured to receive a control signal from the processor and output a haptic effect to the haptic peripheral in response to the control signal from the processor. The processor is configured to vary the control signal for the haptic output device depending on an audio output accessory connectivity status of the audio display such that the haptic output device generates and applies a first haptic effect if the audio display is connected to an audio output accessory in order to output audio through the headphone connector and the haptic output device generates and applies a second haptic effect if the audio display is not connected to an audio output accessory in order to output audio through the speaker.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: July 9, 2019
    Assignee: IMMERSION CORPORATION
    Inventors: William Rihn, David Birnbaum
  • Patent number: 10339910
    Abstract: A system for cancelling objectionable wind noise in a vehicle cabin includes a wind noise identification module that is configured to receive data from a microphone indicating a noise measured in a cabin of a vehicle and determine whether the noise is objectionable wind noise based on (i) a position of a moveable panel configured to cover an opening in a body of the vehicle and (ii) at least one of an amplitude of the noise and a frequency of the noise. The system also includes a first noise cancellation module that is configured to generate a noise cancellation waveform to mitigate the noise based on at least one of the amplitude of the noise and the frequency of the noise when the noise is objectionable wind noise.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 2, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C. Valeri, Scott M. Reilly
  • Patent number: 10306378
    Abstract: A method for operating a hearing device, in particular a hearing aid device, in which a first analog signal is provided. A second analog signal is generated by a preamplifier based on the first analog signal, and a first digital signal is generated by an A/D converter based on the second analog signal. A second digital signal is generated by an amplifier based on the first digital signal, and a third digital signal, in which a noise is reduced in comparison with the second digital signal, is generated by a noise suppression unit based on a second digital signal. The preamplifier, amplifier, and noise suppression unit are set using a value characterizing the first digital signal.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 28, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Stefan Petrausch, Thomas Pilgrim
  • Patent number: 10298192
    Abstract: A recorded signal representing a recorded sound generated by a sound generation source is reproduced. A type of a sound generation source of a performance sound represented by a performance signal is specified. A sound volume of the recorded signal is reduced in a case where the sound generation source of the recorded signal corresponds to the specified type of the sound generation source.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 21, 2019
    Assignee: Yamaha Corporation
    Inventor: Keita Arimoto
  • Patent number: 10249320
    Abstract: Methods, systems, and computer program products for normalizing the speaking volume of participants in meetings are provided herein.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 2, 2019
    Assignee: International Business Machines Corporation
    Inventors: Andrew Aaron, Shang Q. Guo, Jonathan Lenchner, Maharaj Mukherjee
  • Patent number: 10250982
    Abstract: A sound source apparatus for receiving an audio signal and displaying the audio signal is provided. The sound source apparatus includes at least two sound source output devices, at least two distance sensors, and a processor. Each distance sensor is installed respectively corresponding to each sound source output device, and is configured to respectively detect at least one target to generate sensing signals. The processor receives the audio signal, and when the processor determines that the at least one target meets a sensing range through respectively receiving the sensing signals generated by each distance sensor, the processor calculates output volume of each sound source output device respectively according to a relative distance between each distance sensor and the at least one target.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 2, 2019
    Assignee: Kinpo Electronics, Inc.
    Inventor: Yung-Rung Du
  • Patent number: 10237654
    Abstract: An apparatus for reducing cross-talk between transmitted audio signals and received audio in a headset. The headset includes one or more of a set of earphones, a headset frame, a microphone boom with an array of MEMS microphone configured to isolate the earphone audio from the microphone audio, a VOX circuit, low crosstalk cable(s), and/or other components. Sets of microphones may be enabled and/or disabled to reduce cross-talk between received audio signals and transmitted audio signals. The VOX circuit is configured to reduce cross-talk between received audio signals and transmitted audio signals.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 19, 2019
    Assignee: HM Electronics, Inc.
    Inventors: Charles Butten, Karl Knoblock, Robert Snyder
  • Patent number: 10212514
    Abstract: A predictive brownout prevention system may be configured to prevent brownout of an audio output signal. Particularly, the brownout prevention system may be configured to receive information indicative of adaptive estimates of power supply conditions, wherein the information indicative of adaptive estimates of the power supply conditions comprises information regarding a voltage component and a resistive component received from an adaptive battery model of a battery for providing electrical energy to a power supply for generating the power supply voltage and adapt the adaptive battery model based on a monitored battery voltage output by the battery and loading events of the signal path and excluding loading events of components other than the signal path which are powered from the battery.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 19, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Roger Serwy, Jason W. Lawrence, Firas Azrai, Jeffrey Allen May, Jie Su
  • Patent number: 10154363
    Abstract: An electronic apparatus includes a plurality of sound output units. The electronic apparatus includes a detection unit for detecting an object around the electronic apparatus. The electronic apparatus includes a controller for controlling a signal to be output to the sound output unit based on a result of detection by the detection unit.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: December 11, 2018
    Assignee: KYOCERA Corporation
    Inventor: Yuuji Ishida
  • Patent number: 10134245
    Abstract: A system, method, and apparatus for monitoring ambient sound and vibration levels at the location of a user allows a determination as to whether the user is exceeding a maximum allowed exposure time as determined by an occupational standard. The sound and vibration level data can be evaluated locally at the mobile communication device, as well as transmitted to a backend system to allow supervision of personnel associated with the backend system as a further assurance that personnel comply with exposure limits. Further, the mobile communication device, in response to ambient conditions, adjusts the settings of its alerting sound and the vibration level of an associated vibration accessory to ensure perception of alerts by the mobile communication device for the user of the mobile communication device.
    Type: Grant
    Filed: November 12, 2017
    Date of Patent: November 20, 2018
    Inventors: Mauricio Bendeck, Jaime Andreas Borras, Alain Edwards
  • Patent number: 10123114
    Abstract: Brownout management for an audio amplification system. An audio amplification system includes audio volume control circuitry, audio sample interpolation circuitry, and brownout management circuitry. The brownout management circuitry includes brownout detection circuitry and brownout response circuitry. The brownout detection circuitry is configured to determine whether a voltage of a battery that powers the audio amplification system is below a brownout threshold, and to generate a brownout detection signal that indicates the voltage is below the brownout threshold. The brownout response circuitry is coupled to an audio output of the audio sample interpolation circuitry. The brownout response circuitry is configured to attenuate the audio samples output by the audio sample interpolation circuitry responsive to the brownout detection signal indicating that the voltage is below the brownout threshold.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 6, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Uttam Kumar Agarwal, Prateek Jain, Nageswara Rao, Mukund Navada, Pradeep Chandar Chandramouli
  • Patent number: 10120644
    Abstract: Systems, methods, software and apparatus that enable dynamic audio transducer control include obtaining attribute information relating to multiple communication nodes that are communication node group members. A group management system or other computing system receives attribute information from two or more of the communication nodes and determines settings for one or more audio transducers (e.g., speakers and microphones) in the group's communication nodes based on the attribute information. An audio transducer command is transmitted to or imposed on one or more of the nodes. Attribute information can include node attributes and/or changes to attributes. Audio transducer commands transmitted or otherwise imposed on nodes can include muting and unmuting commands, as well as setting volume levels and other audio settings associated with a node's operation.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 6, 2018
    Assignee: Orion Labs
    Inventors: Jesse Robbins, Greg Albrecht, Ellen Juhlin, Roger Wood, Neil Girling
  • Patent number: 10102719
    Abstract: A mobile terminal and a control method thereof are disclosed. A mobile terminal according to an embodiment of the present invention comprises: a sound output unit which outputs a sound corresponding to reproduction of a content; a setting unit which includes a plurality of noise blocking levels and sets at least one noise blocking level on the basis of a user input; and a control unit which, when the content is reproduced, blocks surrounding noise according to the set noise blocking level and, when a specific event is detected, adjusts the already set noise blocking level such that the degree of surrounding noise blocking is changed according to the detected specific event.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 16, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Wonseok Joung, Seyoung Lee, Jihyun Kim, Younggyoo Cho, Dami Choe
  • Patent number: 10063956
    Abstract: An audio headset comprising at least one headset earpiece comprising a speaker, an ear cushion adapter, a microprocessor and a driver; and a removable ear cup configured to be removably attached to the headset ear piece; wherein the microprocessor is configured to recognize the removable ear cup and adjust audio output through the speaker based on parameters associated with the removable ear cup.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: August 28, 2018
    Assignee: Muzik Inc.
    Inventors: Jason Hardi, Eric Gregory White
  • Patent number: 10044392
    Abstract: An electronic device is to be worn by a user and includes an antenna and a storage compartment that stores the antenna. In a state of the electronic device being worn by the user, the storage compartment is positioned at a side of the user's head. The antenna is capable of selectively adopting a stored state and a deployed state, the antenna being stored in the storage compartment in the stored state, and a greater portion of the antenna being separated from the storage compartment in the deployed state than in the stored state.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 7, 2018
    Assignee: KYOCERA Corporation
    Inventor: Naoki Nishizaka
  • Patent number: 10020003
    Abstract: A voice signal processing apparatus and a voice signal processing method are provided. A loudness of an input voice signal is detected to obtain a reference loudness. Reference loudness gains corresponding to frequency bands are calculated according to the reference loudness and wide dynamic range compression curves corresponding to the frequency bands. Loudnesses of filter signals of the frequency bands are adjusted according to the reference loudness gains of the frequency bands.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: July 10, 2018
    Assignee: Acer Incorporated
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
  • Patent number: 10020006
    Abstract: Systems and methods described herein modify audio content on an electronic device. Embodiments can be configured to detect a mode of the electronic device to determine whether the device is in a telephone mode; receive a speech signal from a speech source while the device is in the telephone mode; and process the speech signal to improve the perceived quality of the speech at a recipient when the electronic device is in a telephone mode; wherein processing the speech signal to improve the perceived quality of the speech comprises, decreasing the signal level of audio content outside of a determined frequency band relative to the signal level of the audio content within the determined frequency band; and wherein the determined frequency band is a frequency band associated a vocal range of the anticipated speech content. The method further includes adjusting high frequency sounds such as attack and release times of the speech signal based on sound events within the speech signal.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 10, 2018
    Assignee: Yobe, Inc.
    Inventor: James Christopher Fairey
  • Patent number: 10021485
    Abstract: A method may include receiving information indicative of an amplitude of an audio output signal, receiving information indicative of a predicted voltage of a power supply of a signal path having an audio input for receiving an audio input signal and an audio output for generating the audio output signal based on the audio input signal, predicting from the information indicative of the amplitude of the audio output signal and the information indicative of the predicted voltage of the power supply whether the audio output signal will exceed an available supply voltage generated by the power supply, and responsive to determining the audio output signal will exceed the available supply voltage generated by the power supply, attenuating the audio input signal or a derivative thereof to reduce the amplitude of the audio output signal such that the audio output signal does not exceed the available supply voltage of the power supply.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: July 10, 2018
    Assignee: Cirrus Logic, Inc.
    Inventors: Jeffrey Allen May, Firas Azrai
  • Patent number: 10008990
    Abstract: According to an embodiment, a method of operating an acoustic device includes buffering, by a buffer circuit, a first electrical signal from an acoustic transducer to produce a second electrical signal, receiving a feedback signal at a supply circuit, and comparing the feedback signal to a first threshold. The feedback signal is based on the first electrical signal. The method further includes, based on comparing the feedback signal to the first threshold, switching between a first mode and a second mode, supplying a first supply voltage to the buffer circuit during the first mode, and supplying a second supply voltage to the buffer circuit during the second mode. The first supply voltage is different from the second supply voltage.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: June 26, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Susana Paton Alvarez, Juan Antonio Torreno, Elmar Bach, Dietmar Straeussnigg, Andreas Wiesbauer
  • Patent number: 10002478
    Abstract: A system includes a memory configured to store data associated with a service that is available. The system also includes a microphone associated with an acoustic space and configured to receive an audio input produced by a person. The system further includes a sensor located within the acoustic space and configured to detect vibrations produced by the person. The system includes a processor coupled to the memory, to the microphone, and to the sensor. The processor is configured to conditionally authorize execution of the service requested by the person, the service conditionally authorized based on the audio input and the vibrations.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: June 19, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Shaun William Van Dyken, Erik Visser, Asif Iqbal Mohammad, Samir Kumar Gupta, Lae-Hoon Kim, Sreekanth Narayanaswamy, Phuong Ton
  • Patent number: 9998826
    Abstract: In accordance with embodiments of the present disclosure, a method for operating a playback path comprising a first dynamic range enhancement subsystem and a second dynamic range enhancement subsystem, wherein an audio signal generated by the first dynamic range enhancement subsystem is communicated to the second dynamic range enhancement subsystem, is provided.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 12, 2018
    Assignee: Cirrus Logic, Inc.
    Inventor: Aniruddha Satoskar
  • Patent number: 9992580
    Abstract: A communication system includes a processor and a computer readable medium, coupled with the processor, comprising instructions that program the processor to: cause an electromagnetic emitter to irradiate a location on a selected object in proximity to a speaker; determine, from radiation reflected by the selected object at the irradiated location, an audio characteristic of the irradiated location; and when the audio characteristic is acceptable, assigning an electromagnetic microphone to collect audio information from radiation reflected by the selected object at the irradiated location.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 5, 2018
    Assignee: Avaya Inc.
    Inventors: Azaria Cohen, Tamar Barzuza
  • Patent number: 9991861
    Abstract: According to a preferred aspect, there is provided a system and method for controlled dynamics adaptation of audio works. The dynamics complexity of the audio is adapted depending on the listening environment and its dynamics properties. The instant invention utilizes a function of stepwise linear and logarithmical sections, which describe individual points of a curve and which therefore with the use of a parameter can be utilized to calculate and control the target value of the loudness range. The curve points are stored and provided as metadata of the musical program, which allows the dynamics scaling functionality to be implemented dynamically and not tied to a certain time or place.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: June 5, 2018
    Assignee: BELLEVUE INVESTMENTS GMBH & CO. KGAA
    Inventors: Tilman Herberger, Titus Tost, Toni Engel
  • Patent number: 9984614
    Abstract: An organic light emitting display device includes a timing controller, data driver, and a plurality of pixels. The timing controller outputs gamma voltages corresponding to image data. The data driver generates data signals based on the gamma voltages. The pixels emit light with brightness corresponding to the data signals. The timing controller includes an on-pixel ratio (OPR) operator to calculate an OPR based on the image data and a gamma voltage supplier to select one of a plurality of gamma tables based on the OPR and to output gamma voltages stored in the selected one of the gamma tables.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: May 29, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jae Wan Hwang
  • Patent number: 9980034
    Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 22, 2018
    Assignee: AVNERA CORPORATION
    Inventors: Amit Kumar, Shankar Rathoud, Mike Wurtz, Eric Etheridge, Eric Sorensen
  • Patent number: 9966914
    Abstract: A method of processing an audio signal is provided. The method includes receiving at least one digital audio stream from at least one audio source, applying at least one gain value to each of the at least one digital audio stream by a gain adjustment unit, mixing the at least one digital audio stream to which the at least one gain value has been applied, calculating a representative gain value from the at least one gain value, calculating an extra valid headroom based on the representative gain value for correction of the mixed at least one digital audio stream, and post-processing the mixed at least one digital audio stream using the extra valid headroom.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: May 8, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaehyun Kim, Misun Kim, Kyungseok Oh, Sanghoon Oh
  • Patent number: 9955269
    Abstract: Systems for controlling parameters of a MEMS microphone. In one embodiment, the microphone system includes a MEMS microphone and a controller. The MEMS microphone includes a movable electrode, a stationary electrode, and a driven electrode. The movable electrode is configured such that acoustic pressure acting on the movable electrode causes movement of the movable electrode. The stationary electrode and the driven electrode are positioned on a first side of the movable electrode. The driven electrode is configured to alter a parameter of the MEMS microphone based on a control signal. The controller is coupled to the stationary electrode and the driven electrode. The controller is configured to determine a voltage difference between the movable electrode and the stationary electrode. The controller is also configured to generate the control signal based on the voltage difference.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: April 24, 2018
    Assignee: ROBERT BOSCH GmbH
    Inventors: Andrew J. Doller, Sucheendran Sridharan
  • Patent number: 9939708
    Abstract: An electro-optical modulator is provided. The electro-optical modulator comprises at least one optical waveguide; a plurality of segments, wherein each one of the segments comprises at least one waveguide electrode for supplying a voltage to the optical waveguide, wherein the segments are arranged one behind the other along the optical waveguide, and wherein each one of the segments comprises its own driver unit electrically connected to the waveguide electrode of the segment for supplying an electric signal. Each one of the segments forms an electrical resonant circuit, wherein the segments are configured in such a way that the resonance frequency of the electrical resonant circuit of at least one of the segments lies within the frequency range of an electrical signal supplied to the driver units.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: April 10, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FĂ–RDERUNG DER ANGEW ANDTEN FORSCHUNG E.V.
    Inventors: Alessandro Aimone, Gerrit Fiol
  • Patent number: 9941987
    Abstract: According to a first aspect of the embodiments, a microphone mixer is provided comprising: an input adapted to receive differential microphone (mic) output signals; a gain-trim circuit adapted to receive the differential mic output signals, and which includes a substantially fully differential amplifier adapted to amplify the received differential mic output signals through use of a gain-trim output adjustment device that provides a variable gain amount ranging from a first gain-trim gain value to a second gain-trim gain value, to produce differential gain-trim circuit output signals; a fader circuit adapted to receive the differential gain-trim circuit output signals, and which includes a differential amplifier adapted to attenuate the received differential gain-trim circuit output signals through use of a fader output adjustment device that provides a variable gain amount ranging from a first fader gain value to a second fader value; and a common adjustment apparatus that mechanically ties the gain-trim out
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: April 10, 2018
    Assignee: Crestron Electronics, Inc.
    Inventors: Philip Bellingham, Krunoslav Draganovic
  • Patent number: 9933992
    Abstract: A mixer includes a plurality of channel modules, and audio signals having processed in the individual channel modules are output from a main output. A temporary channel module is created and made usable in response to a preview start instruction for previewing a desired one of the channel modules as a preview-object channel module. The same audio signal as input to the preview-object channel module is input to the temporary channel module. The temporary channel module performs signal processing on the input audio signal independently of the preview-object channel module, and the audio signal having been subjected to the signal processing is output to a monitor output. Thus, a user is allowed to change a signal processing parameter value to be applied to an audio signal and preview the changed result, without influencing the main output.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 3, 2018
    Assignee: YAMAHA CORPORATION
    Inventor: Kotaro Terada
  • Patent number: 9864572
    Abstract: Systems, methods, apparatus, and articles of manufacture to facilitate playback of multimedia content are disclosed. An example apparatus includes a network interface configured to receive first audio content and second audio content over a playback network. A processor comprises instructions, which when executed, cause the processor to play first audio content when grouped with a portable playback device. The processor is to detect that the portable playback device is not connected to the playback network. Based on detecting that the portable playback device is not connected to the playback network, the processor is to play second audio content.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 9, 2018
    Assignee: SONOS, INC.
    Inventor: Mieko Kusano
  • Patent number: 9858942
    Abstract: Methods and apparatus for reducing impulsive interferences in a signal, without necessarily ascertaining a pitch frequency in the signal, detect onsets of the impulsive interferences by searching a spectrum of high-energy components for large temporal derivatives that are correlated along frequency and extend from a very low frequency up, possibly to about several kHz. The energies of the impulsive interferences are estimated, and these estimates are used to suppress the impulsive interferences. Optionally, techniques are employed to protect desired speech signals from being corrupted as a result of the suppression of the impulsive interferences.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 2, 2018
    Assignee: NUANCE COMMUNICATIONS, INC.
    Inventors: Tobias Wolff, Christian Hofmann
  • Patent number: 9860644
    Abstract: A dry audio signal may be received. An envelope of the dry audio signal may be compared to a threshold of the playback device to determine a dry excess. A filter may be applied to the dry audio signal to generate a wet audio signal. An envelope of the wet audio signal may be compared to the threshold to determine a wet excess. Based on the dry and wet excess, a dry gain may be determined for the dry audio signal and a wet gain may be determined for the wet audio signal. The wet audio signal and the dry audio signals may be mixed in proportion to respective gains. The mixed audio signal may avoid exceeding an operational limit associated with audio playback on the playback device.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 2, 2018
    Assignee: SONOS, INC.
    Inventors: Aurelio Ramos, Paul MacLean
  • Patent number: 9792083
    Abstract: This is directed to controlling the output of audio based on the mode of an electronic device. In particular, this is directed to an electronic device having a sound mode, silent mode, and mute mode controlling the output of audio along different audio output routes. In the sound mode, all audio can be output, while only registered or authorized audio can be output in the silent mode. In the mute mode, no audio can be output. The sound and silent modes can be enabled using an interface of the device (e.g., a switch having two possible states), while the mute mode can be enabled using an accessory coupled to the device. To disengage the mute mode, a user can provide a corresponding instruction using the accessory, or providing an instruction on the device related to volume control. For example, a user can change the device volume using an on-device interface, or toggle a sound/silent switch to a sound mode.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: October 17, 2017
    Assignee: APPLE INC.
    Inventors: Patrick Coffman, Meriko Borogove, Jonathan Bennett, Gregory Chapman, Anthony Guetta, Deepak Iyer, Eric Johnson
  • Patent number: 9779613
    Abstract: Embodiments are provided for displaying on a network device graphical display, an indication of an alarm, a media playback system playback zone associated with the alarm, and a control element for deactivating the alarm. The indication may be displayed in response to the network device receiving data indicating that the alarm is going off or is about to go off in the playback zone. A selection of the control element for deactivating the alarm may prompt a controller interface of the media playback system to be displayed on the graphical display, and the alarm may be deactivated via the controller interface. Alternatively, the selection of the control element may cause the alarm to be deactivated without displaying the controller interface. To deactivate the alarm, the network device may send to one or more playback devices in the playback zone, a transmission indicating that the alarm is to be deactivated.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: October 3, 2017
    Assignee: Sonos, Inc.
    Inventor: Paul Andrew Bates
  • Patent number: 9780752
    Abstract: An assembly includes an analog signal processing unit. An analog signal path and an amplifier an automatic gain control unit are coupled to the signal path. Further to the output of the amplified analog signal, a gain information is provided as an analog or digital signal at a gain information output. This information can be used for further processing the signal, e.g., by automatic noise compression or to control further signal processing units.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: October 3, 2017
    Assignee: TDK Corporation
    Inventors: Armin Schober, Gino Rocca, Troels Andersen
  • Patent number: 9767849
    Abstract: Systems and methods are provided to implement and facilitate cross-fading, interstitials and other effects/processing of two or more media elements in a personalized media delivery service. Effects or crossfade processing can occur on the broadcast, publisher or server-side, but can still be personalized to a specific user, in a manner that minimizes processing on the downstream side or client device. The cross-fade can be implemented after decoding the relevant chunks of each component clip, processing, recoding and rechunking, or, the cross-fade or other effect can be implemented on the relevant chunks to the effect in the compressed domain, thus obviating any loss of quality by re-encoding. A large scale personalized content delivery service can limit the processing to essentially the first and last chunks of any file, there being no need to processing the full clip.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: September 19, 2017
    Assignee: Sirius XM Radio Inc.
    Inventors: Raymond Lowe, Christopher Ward
  • Patent number: 9733897
    Abstract: An apparatus and method are provided for searching content. The electronic device includes a display; an audio processing unit; and a controller configured to control the audio processing unit to output sound of first content from a foreground of the display at a preset foreground volume, detect a request to search for second content, and in response to the detected request, control the audio processing unit to simultaneously output sound of the second content from a background of the display at a preset background volume with the sound of the first content. The preset foreground volume differs from preset background volume.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: August 15, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Hwajun Lee
  • Patent number: 9712268
    Abstract: In a group level control section, a largest output level among those in channels belonging to a relevant group is selected automatically as a group level. By operating a control part of a channel level control section displayed on a basic screen, an output level of an input channel corresponding to the operated channel level control section can be controlled. Further, by operating a control part of a group level control section, output levels of the input channels belonging to the group can be collectively controlled with difference in levels among the input channels being maintained.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: July 18, 2017
    Assignee: YAMAHA CORPORATION
    Inventors: Kotaro Terada, Tomohiro Yamamoto
  • Patent number: 9703524
    Abstract: Personal audio systems and methods are disclosed. A personal audio system includes a processor to generate a personal audio stream by processing an ambient audio stream in accordance with an active processing parameter set, a circular buffer memory to store a most recent snippet of the ambient audio stream, and an event detector to detect a trigger event. In response to detection of the trigger event, a controller may extract audio feature data from the most recent snippet of the ambient audio stream and transmit the audio feature data and associated metadata to a knowledgebase remote from the personal audio system.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: July 11, 2017
    Assignee: Doppler Labs, Inc.
    Inventors: Gints Klimanis, Noah Kraft, Matthew J. Jaffe, Richard Fritz Lanman, III, Jeff Baker
  • Patent number: 9686617
    Abstract: Systems and methods for controlling parameters of a MEMS microphone. The microphone system includes a MEMS microphone and a controller. The MEMS microphone includes a movable electrode, a stationary electrode, and a driven electrode. The movable electrode has a first side and a second side that is opposite the first side. The movable electrode is configured such that acoustic pressures acting on the first side and the second of the movable electrode cause movement of the movable electrode. The stationary electrode is positioned on the first side of the movable electrode. The driven electrode is configured to receive a control signal and alter a parameter of the MEMS microphone based on the control signal. The controller is configured to determine a voltage difference between the movable electrode and the stationary electrode. The controller is also configured to generate the control signal based on the voltage difference.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: June 20, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Andrew J. Doller, Sucheendran Sridharan
  • Patent number: 9678708
    Abstract: An example playback device may store an active volume state variable in memory, where the active volume state variable corresponds to a current playback volume. The playback device may also store a volume limit state variable in memory, where the volume limit state variable corresponds to a playback volume limit of the playback device. The playback device may detect a command to begin playback of media from a given source and then select a startup playback volume to be one of the current playback volume and the playback volume limit based on the given source of the command to begin playback. The playback device may then play back media at the startup playback volume.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: June 13, 2017
    Assignee: Sonos, Inc.
    Inventors: Chris Bierbower, Nicholas Maniskas
  • Patent number: 9681236
    Abstract: Method for providing sound to at least one user, involves supplying audio signals from an audio signal source to a transmission unit; compressing the audio signals to generate compressed audio data; transmitting compressed audio data from the transmission unit to at least one receiver unit; decompressing the compressed audio data to generate decompressed audio signals; and stimulating the hearing of the user(s) according to decompressed audio signals supplied from the receiver unit. During certain time periods, transmission of compressed audio data is interrupted, and instead, at least one control data block is generated by the transmission unit in such a manner that audio data transmission is replaced by control data block transmission, thereby temporarily interrupting flow of received compressed audio data, each control data block includes a marker recognized by the at least one receiver unit as a control data block and a command for control of the receiver unit.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: June 13, 2017
    Assignee: SONOVA AG
    Inventors: Amre El-Hoiydi, Marc Secall
  • Patent number: 9641934
    Abstract: An In-Car Communication (ICC) system supports the communication paths within a car by receiving the speech signals of a speaking passenger and playing it back for one or more listening passengers. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in a vehicle having multiple acoustic zones includes a plurality of microphone In-Car Communication (Mic-ICC) instances coupled and a plurality of loudspeaker In-Car Communication (Ls-ICC) instances. The system further includes a dynamic audio routing matrix with a controller and coupled to the Mic-ICC instances, a mixer coupled to the plurality of Mic-ICC instances and a distributor coupled to the Ls-ICC instances.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: May 2, 2017
    Assignee: NUANCE COMMUNICATIONS, INC.
    Inventors: Tobias Herbig, Markus Buck, Meik Pfeffinger
  • Patent number: 9641660
    Abstract: Technologies are generally described for modifying sound output in a personal communication device. Example devices described herein may include one or more of a communication unit, an audio processor, and/or a sound leakage detector. A communication signal may be received from the other party during personal communication by the communication unit. The communication signal may be converted by the audio processor into receiver sound for output by a receiver speaker. The sound leakage detector may provide a sound leakage indication if the sound leakage detector receives an input indicating a leakage of the receiver sound being output by the receiver speaker. Further, the audio processor may modify the receiver sound based on the sound leakage indication.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 2, 2017
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Seungil Kim
  • Patent number: 9595269
    Abstract: A method of operation of a device includes receiving a first set of samples and a second set of samples. The first set of samples corresponds to a portion of a first audio frame and the second set of samples corresponds to a second audio frame. The method further includes generating a target set of samples based on the first set of samples and a first subset of the second set of samples and generating a reference set of samples based at least partially on a second subset of the second set of samples. The method also includes scaling the target set of samples to generate a scaled target set of samples and generating a third set of samples based on the scaled target set of samples and one or more samples of the second set of samples.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: March 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Venkata Subrahmanyam Chandra Sekhar Chebiyyam, Venkatraman S. Atti