Monitoring/measuring Of Audio Devices Patents (Class 381/58)
  • Patent number: 10789514
    Abstract: A first intelligent assistant computing device configured to receive and respond to natural language inputs provided by human users syncs to a reference clock of a wireless computer network. The first intelligent assistant computing device receives a communication sent by a second intelligent assistant computing device indicating a signal emission time at which the second intelligent assistant computing device emitted a position calibration signal. The first intelligent assistant computing device records a signal detection time at which the position calibration signal was detected. Based on a difference between 1) the signal emission time and the signal detection time, and 2) a known propagation speed of the position calibration signal, a distance between the first and second intelligent assistant computing devices is calculated.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: September 29, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Steven Nabil Bathiche, Flavio Protasio Ribeiro, Vivek Pradeep
  • Patent number: 10777015
    Abstract: A method of overlaying an optical and acoustic reproduction of a real scene with virtual image and audio data comprises reading image data which represent an optical and/or acoustic reproduction of the real scene captured by at least one environment sensor of a mobile device, determining marker data from the image data, wherein the marker data represent a reproduction and a positioning of a marker arranged in the real scene, reading virtual image and audio data, wherein the virtual image and audio data comprise a representation instruction for representing the virtual image, a positioning instruction for positioning the virtual image and a positioning instruction for replay of the audio data, determining object data from the image and audio data, and ascertaining a positioning rule for positioning the virtual image with reference to the reproduction of the object portion using the object data and the virtual image and audio data.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: September 15, 2020
    Assignee: 3DQR GmbH
    Inventors: Daniel Anderson, Volker Bauer
  • Patent number: 10771908
    Abstract: Systems, methods, and non-transitory computer-readable storage media for performing a role swapping operation between a pair of non-tethered wireless ear buds after detecting a triggering event. Further, state information can be coordinated between devices, including in connection with performing a role swap between buds in a pair of wireless, untethered ear buds, where one wireless ear bud is in a primary role and is responsible for a connection with a companion device, and another wireless ear bud in the pair is in a secondary role.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: September 8, 2020
    Assignee: Apple Inc.
    Inventors: Sriram Hariharan, Ganesha Adkasthala Ganapathi Batta, Tad J. Dreier, Christopher S. Wiebe, Ashley N. Saulsbury, Duy N. Phan, David J. Shaw, Robert D. Watson, Augustin Prats
  • Patent number: 10757247
    Abstract: A switching method for an electronic device includes: acquiring first environment information at first time; acquiring second environment information at second time, the second time being later than the first time; determining whether the first environment information satisfies a first condition; and in response to the first environment information satisfying the first condition, switching the electronic device from a first operation mode to a second operation mode. In the first operation mode, the electronic device processes second environment information in a first processing manner; and in the second operation mode, the electronic device processes the second environment information in a second processing manner.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 25, 2020
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventors: Zhijun He, Qihua Xiao
  • Patent number: 10757239
    Abstract: An electronic device includes an earphone jack assembly disposed to align with an opening in the housing of the electronic device. The earphone jack assembly includes at least one structure including a first passage having a first cross-sectional area, a second passage having a second cross-sectional area smaller than the first cross-sectional area, a third passage, and a microphone disposed outside of the at least one structure and including a substrate having a hole connected to the third passage. The first passage extends from the opening in a first direction, and includes a first end connected to the opening and a second end opposite to the first end, the second passage extends from the second end of the first passage in the first direction, and the third passage extends from the second passage in a second direction different from the first direction.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: August 25, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Il Seo, Ki Jae Kim, Dae Young Noh, Soon Woong Yang, Yong Lak Cho
  • Patent number: 10735879
    Abstract: Example techniques may involve multiple calibrations for a playback device. In an example implementation, a first playback device, while in a first playback configuration, applies a first calibration to playback by the first playback device, which offsets acoustic characteristics of a first listening area. The first playback configuration configures the first playback device to play back the first audio content (a) independently or (b) in a bonded zone with a second playback device. The first playback device joins a synchrony group in a second playback configuration. While in the second playback configuration as part of the synchrony group, the first playback device applies a second calibration to playback by the first playback device, which offsets acoustic characteristics of a second listening area. The second playback configuration configures the first playback device to play back the second audio content in synchrony with a third playback device in the second listening area.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: August 4, 2020
    Assignee: Sonos, Inc.
    Inventors: Klaus Hartung, Dayn Wilberding
  • Patent number: 10708691
    Abstract: An electronic device that provides dynamic equalization in a directional speaker array is described. Based at least in part on audio content and an acoustic radiation pattern associated with a second electronic device, the electronic device may determine drive signals for a set of drivers. Then, the electronic device may adjust the drive signals for at least a subset of the set of drivers based at least in part on a distortion margin in at least the subset of the drivers, where the distortion margin is based at least in part on the drive signals, a distortion threshold of at least the subset of the drivers and a volume setting. Next, based at least in part on the adjusted drive signals, the electronic device may output, using the set of drivers, the sound corresponding to the audio content.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: July 7, 2020
    Assignee: EVA Automation, Inc.
    Inventor: Jonathan Moore
  • Patent number: 10698651
    Abstract: An audio apparatus includes: a receiver which receives audio data transmitted by a broadcast method from an external apparatus; a sound emitter which performs sound emission of the audio data received by the receiver; a generator which generates sound emission control information relating to sound emission of other apparatus which can receive the audio data; and a transmitter which transmits the sound emission control information generated by the generator to the other apparatus.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: June 30, 2020
    Assignee: Yamaha Corporation
    Inventor: Daigo Sugiura
  • Patent number: 10686943
    Abstract: Described herein is a retrofit digital speaker system comprising two or more retrofitted speaker enclosures, each of the two or more retrofitted speaker enclosures (enclosures) comprising: at least one speaker; and an analog-and-digital interface adapted to receive digitally encoded audio signals, electrical power, and digital command signals, and wherein the digitally encoded audio signals, electrical power, and digital command signals are transmitted over existing two wire analog audio cables, and further wherein the two or more retrofitted speaker enclosures are wired in a daisy chain fashion, via the existing two wire analog audio cables.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 16, 2020
    Assignee: Crestron Electronics, Inc.
    Inventors: Mark LaBosco, Alexander Marra
  • Patent number: 10687135
    Abstract: The present disclosure relates to audio systems for streaming audio data to wireless audio devices from a portable charging case. The portable charging case is arranged to wirelessly charge first and second wireless audio devices as well as stream audio data to the first and second wireless audio devices. The portable charging case can store audio files/audio data within an internal memory, or receive audio data from an external source, e.g., a cable arranged to transmit digital or analog audio data. The portable charging case is further arranged to automatically start streaming audio data to the first and/or second wireless audio devices when a cable is connected to the portable charging case.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: June 16, 2020
    Assignee: Bose Corporation
    Inventors: Naren Reddy Palupunoori, Taylor Russell, Douglas Warren Young
  • Patent number: 10681462
    Abstract: An electronic apparatus is provided. The electronic apparatus includes an output circuit, an input circuit, and a processor. The output circuit is connected to plural speaker devices. The processor controls the output circuit to cause each of the speaker devices to output an audio signal, and identifies whether each of the speaker devices is connected based on the audio signal received through the input circuit.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: June 9, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Da-young Lee, Jeong-kee Park
  • Patent number: 10680568
    Abstract: A sound signal detection device is closed. The sound signal detection device is connected between an audio output device and a speaker apparatus. The sound signal detection device includes a first connecting port, a second connecting port, a microphone, and a processing module. The first connecting port connects to the audio output device and acquires a first sound signal. The second connecting port is used for outputting the first sound signal to the speaker apparatus. The microphone is used for receiving a second sound signal from the speaker apparatus. The process module is electrically connected to the microphone and used for detecting a volume of the second sound signal to generate a real volume signal.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 9, 2020
    Assignee: UNLIMITER MFA CO., LTD.
    Inventors: Kuan-Li Chao, Kuo-Ping Yang, Neo Bob Chih-Yung Young
  • Patent number: 10672405
    Abstract: A computing device includes a processor and a memory. The processor is configured to generate spectrograms, for example, using short-time Fourier transform, for a plurality of channels of reference and test ambisonic signals. In some implementations, the test ambisonic signal may be generated by decoding an encoded version of the reference ambisonic signal. The processor is further configured to compare, for each of the plurality of channels of a reference ambisonic signal, at least a patch associated with a channel of the reference ambisonic signal with at least a corresponding patch of a corresponding channel of the test ambisonic signal and determine a localization accuracy of the test ambisonic signal based on the comparison. In some implementations, the comparing may be based on phaseograms of the reference and test ambisonic signals.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 2, 2020
    Assignee: GOOGLE LLC
    Inventors: Andrew Hines, Jan Skoglund, Andrew Allen, Miroslaw Narbutt
  • Patent number: 10674260
    Abstract: Systems and methods can be implemented to include a speaker system with microphone room calibration in a variety of applications. The speaker system can be implemented as a smart speaker. The speaker system can include a microphone array having multiple microphones, one or more optical sensors, one or more processors, and a storage device comprising instructions. The one or more optical sensors can be used to determine distances of one or more surfaces to the speaker system. Based on the determined distances, an algorithm to manage beamforming of an incoming voice signal to the speaker system can be adjusted or selected one or more microphones of the microphone array can be turned off, with an adjustment of an evaluation of the voice signal to the microphone array to account for the one or more microphones turned off. Additional systems and methods are disclosed.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 2, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Mohammad Mahdi Tanabian, Timothy Allen Jakoboski
  • Patent number: 10655440
    Abstract: An earphone test system (20) includes a plurality of test stations (22) each operative to perform a function during testing of an earphone device (12) coupled thereto. During testing of earphone devices (12) coupled to the plurality of test stations (22) the earphone test system (20) is operative to expose each of the plurality of test stations (22) to a noise field generated by a common noise field source (29).
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 19, 2020
    Assignee: SOUNDCHIP SA
    Inventors: Paul Darlington, Ben Skelton
  • Patent number: 10652398
    Abstract: In applications where assisted listening headphones are worn inside of a theater, phase cancellation effects cause the headset wearer to perceive the audio as reduced in volume and distorted. These undesirable phase cancellation effects may be disrupted through preprocessing or real time processing of the headset audio track by summing acoustical noise with the original headset audio track and providing this altered audio track to the headset. The acoustical noise is modulated such that it is imperceptible to the headset wearer while at the same time disrupting undesirable phase cancellation effects, which would otherwise occur if the headset audio track was provided unaltered. Thus, the preprocessing of the headset audio preserves the integrity of the intended headset audio, as perceived by the headset wearer, in headsets worn in a theater environment.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 12, 2020
    Assignee: THEATER EARS, LLC
    Inventor: Chris Sutton
  • Patent number: 10638228
    Abstract: The system allows for distribution of 70 Volt high-voltage audio underground in direct burial cable or conduit. From the converter box the audio wires will be coming out of the earth at a safe 8 ohms (minimized shock risk). Typically the size (power output) of the amplifier alone limits how many 70 V converter boxes can have daisy chained together.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 28, 2020
    Inventor: Jeffery James Coombs
  • Patent number: 10629177
    Abstract: Provided is a sound signal processing method including a step of acquiring a unit time length in an input sound signal, a step of calculating a tone feature amount from the input sound signal, a step of calculating an index indicating validity of time lengths in a case where the time lengths are assumed the time lengths of one beat and one measure using the unit time length as a reference in the input sound signal with respect to the tone feature amount, and a step of estimating the time lengths of one beat and one measure using the unit time length as a reference based on the index.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 21, 2020
    Assignee: YAMAHA CORPORATION
    Inventor: Akira Maezawa
  • Patent number: 10602301
    Abstract: An audio processing method includes the following steps: receiving audio information; capturing a square wave signal, a white signal, and a speech signal of the audio information; calculating a loudness value of the audio information; calculating a first sound quality value and a second sound quality value of the audio information by using the square wave signal, the white signal, and the speech signal of the audio information; calculating a sound quality level of the audio information by using a first calculation formula, the first calculation formula being the loudness value*[1+(B*the first sound quality value+C*the second sound quality value)], where B and C are respectively values greater than 0 and less than 0.1; and displaying a value of the sound quality level of the audio information.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 24, 2020
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Yao-Jen Liu, Yen-Ming Chen, Wei-Lun Chen, Tsung-Yen Yu, Chin-Chuan Lee, Guan-De Kuo, Shao-Hsiang Chen
  • Patent number: 10587943
    Abstract: A wearable device includes a housing, a rechargeable battery disposed within the housing and a short range transceiver for near field communication disposed within the housing. The short range transceiver for near field communications comprises a core and a plurality of coil turns wrapped around the core to thereby form a coil. A charging circuit may electrically connected between the coil and the rechargeable battery and configured to charge the rechargeable battery using electromagnetic waves received by the coil.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 10, 2020
    Assignee: BRAGI GmbH
    Inventors: Peter Vincent Boesen, Eric Christian Hirsch
  • Patent number: 10585639
    Abstract: Example techniques facilitate calibration of a playback device. An example implementation involves a computing device capturing, via a microphone, data representing multiple iterations of a calibration sound as played by a playback device. The computing device identifies multiple sections within the captured data. Two or more sections represent respective iterations of the calibration sound as played by the playback device. Based on the multiple identified sections, the computing device determines a frequency response of the playback device, the frequency response of the playback device representing audio output by the playback device and acoustic characteristics of an environment around the playback device. Based on the frequency response of the playback device and a target frequency response, the computing device determines one or more parameters of an audio processing algorithm and sends, to the playback device, the one or more parameters of the audio processing algorithm.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: March 10, 2020
    Assignee: Sonos, Inc.
    Inventor: Timothy W. Sheen
  • Patent number: 10582321
    Abstract: A device may receive audio information that includes an audio signature. The device may identify an unmanned aerial vehicle (UAV) based on the audio signature. The UAV may be identified based on a UAV identifier that is encoded into or determined based on the audio signature. The device may obtain profile information associated with the UAV based on the UAV identifier. The device may provide the profile information.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: March 3, 2020
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Gaurav Goel, Kiran Naiga
  • Patent number: 10567871
    Abstract: A networked speaker system automatically moves a speaker in one or more of the horizontal planes, the vertical plane, and elevation (z-dimension) to maintain the axis of the sound cone directed toward a listener as a listener moves about a space. In addition, or alternatively, the speaker can be moved to optimize sound performance when multiple speakers are activated.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: February 18, 2020
    Assignee: Sony Corporation
    Inventors: James R. Milne, Allison Joi Burgueno, Gregory Peter Carlsson, Keith Resch
  • Patent number: 10551274
    Abstract: Methods and apparatus to detect leaks are disclosed. A disclosed leak probability analysis apparatus associated with a utility distribution system having sensors includes a receiver to receive spectral recording data associated with spectral recordings measured at the sensors, and a storage device to store the spectral recording data. The leak probability analysis apparatus also includes a processor to calculate spectral energies associated with the spectral recording data, calculate deviations of the spectral energies, normalize the spectral energies based on the respective deviations, and generate a leak probability distribution of the utility distribution system based on the normalized spectral energies.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: February 4, 2020
    Assignee: ITRON, INC.
    Inventor: Philip Alan Cole
  • Patent number: 10547958
    Abstract: The invention relates to a sound reproduction device which comprises a signal source, a power source, an amplifier, and a loudspeaker. The sound reproduction device further comprises an impedance measuring device and an analysis device. The impedance measuring device is connected to loudspeaker leads of the loudspeaker in order to measure impedance values, and the impedance measuring device is connected to the analysis device in order to forward the measurement results. The analysis device is also connected to the signal source and/or to the amplifier in order to adapt a signal fed to the loudspeaker.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: January 28, 2020
    Assignee: Peiker Acustic GmbH & Co. KG
    Inventor: Michael Klose
  • Patent number: 10531221
    Abstract: An electronic device that performs automatic room filling is described. Based at least in part on information about an environment, which may include a second electronic device, the electronic device may determine a number of individuals in the environment. Then, based at least in part on the determined number of individuals, the electronic device may calculate an acoustic radiation pattern. For example, a width of a beam in the acoustic radiation pattern may be narrower when there is one individual in the environment, and the width of the beam may be wider when there is more than one individual in the environment. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: January 7, 2020
    Assignee: EVA Automation, Inc.
    Inventor: Jonathan Moore
  • Patent number: 10530917
    Abstract: A system and method automates the tuning of one or more hands-free library parameters. The system and method plays one or more test signals that vary in frequency and in amplitude out of a hands-free system under test or the hands-free tuning system and records the responses of a hands-free tuning system or hands-free tuning system at a microphone of the hands-free tuning system and a microphone of the hands-free system under test. The system and method measures the sound generation and sound pickup characteristics of the hands-free system under test or the hands-free system with respect to the one or more of the test signals and one or more of the microphone signals. The system and method calculates tunable parameters. The system and method updates a hands-free system library with the calculated plurality of tunable parameters.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 7, 2020
    Assignee: 2236008 Ontario Inc.
    Inventors: Mark Robert Every, Mark William Harvey, Rodney Dwight Rempel, Michael Andrew Percy
  • Patent number: 10524053
    Abstract: An electronic device that dynamically adapts sound based at least in part on spatial information determined from ambient or background sound is described. Based at least in part on sound measurements corresponding to ambient noise in an environment, which may include a second electronic device, the electronic device may determine a characteristic of the environment. For example, the characteristic may include: a size of the environment, an acoustic mode of the environment and/or a reverberation time of the environment, which is associated with at least a frequency. Then, based at least in part on the determined characteristics, the electronic device may calculate an acoustic radiation pattern. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 31, 2019
    Assignee: EVA Automation, Inc.
    Inventor: Jonathan Moore
  • Patent number: 10524052
    Abstract: An example system includes a filter bank of sub-octave filters to separate a lower frequency portion of an audio input stream into a number of sub-bands. A detector bank of detectors coupled with the filter bank determines an audio power level in each of the sub-bands. A sub-band selection engine coupled with the detector bank determines a dominant sub-band. A first filter engine isolates the dominant sub-band from the audio input stream and a harmonic engine coupled with the first filter generates harmonics of the dominant sub-band. A second filter engine coupled with the harmonic engine selects a sub-set of the harmonics to combine with a higher frequency portion of the audio input stream.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: December 31, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Sunil Bharitkar
  • Patent number: 10523896
    Abstract: Media content typically includes closed captioning information such as subtitled in domestic and foreign languages. Techniques and mechanisms provide that closed captioning information may be toggled on/off using menu options and preferences as well as automatically managed by intelligently monitoring the environment surrounding a device. Device sensors such as microphones and vibration monitors determine the noise level of an environment as well as the spectral characteristics of the noise to determine whether the noise profile would interfere with the video playback experience. A particular environmental noise profile could automatically trigger the display of closed captioning information or present an easy access, otherwise unavailable toggle to display closed captioning information associated with a video stream.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 31, 2019
    Assignee: MobiTV, Inc.
    Inventor: Torbjorn Einarsson
  • Patent number: 10511906
    Abstract: An electronic device that dynamically adapts sound based at least in part on environmental characterization is described. Based at least in part on information about an environment, which may include a second electronic device, the electronic device may determine a change in a characteristic of the environment. For example, the change in the characteristic may include a change in a reverberation time of the environment, which is associated with at least a frequency. Then, based at least in part on the determined change in the characteristic, the electronic device may calculate an acoustic radiation pattern, where the calculated acoustic radiation pattern reduces an effect of the change in the characteristic on sound in the environment. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 17, 2019
    Assignee: EVA Automation, Inc.
    Inventor: Jonathan Moore
  • Patent number: 10484799
    Abstract: A photoelectric MEMS microphone and an electronic device, have an acoustic cavity, the acoustic cavity includes a MEMS transducer, configured for capturing an acoustic signal, a signal processing chip, connected to a signal output terminal of the MEMS transducer. The signal processing chip includes a signal output terminal pin and a ground pin, and a light emitting device, a driving terminal of the light emitting device being connected to the signal output terminal pin. The light emitting device packaged in the microphone cavity provides the user indication that the microphone of the terminal device is turned on, avoiding the exposure of personal privacy. Furthermore, it helps to reduce costs in that the signal output terminal pin and the ground pin are integrated into the microphone.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 19, 2019
    Assignees: ZILLTEK TECHNOLOGY (SHANGHAI) CORP., ZILLTEK TECHNOLOGY CORP.
    Inventor: Jinghua Ye
  • Patent number: 10484809
    Abstract: An electronic device that provides closed-loop adaptation of 3D sound or a sound field is described. Based at least in part on information about an environment, the electronic device may determine a location of at least an individual relative to location of the second electronic device. Then, based at least in part on the determined location and a predefined acoustic response of the second electronic device, the electronic device may calculate an acoustic radiation pattern of the second electronic device. This acoustic radiation pattern may have a beam with a principal direction corresponding to the determined location, and the acoustic radiation pattern may, at least in part, limit sound distortion of the second electronic device when the second electronic device outputs audio content using the acoustic radiation pattern. Next, the electronic device may provide the audio content and second information specifying the acoustic radiation pattern for the second electronic device.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: November 19, 2019
    Assignee: EVA Automation, Inc.
    Inventor: Jonathan Moore
  • Patent number: 10466961
    Abstract: A method for processing audio signal, an electronic device, and an earphone are provided. The method includes the following. An input operation of a user performed on an earphone is received, and an acoustic echo impulse response at a position of the user's ear canal where the earphone currently stays is determined according to an audio signal currently played by the earphone and a vibration signal generated by the input operation. A directive instruction corresponding to the input operation is identified at least according to the acoustic echo impulse response. An electronic device in communication with the earphone is controlled to execute a corresponding operation for a preset application in the electronic device according to the directive instruction.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: November 5, 2019
    Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
    Inventor: Zongye Yang
  • Patent number: 10453440
    Abstract: A method of noise filtering on a locomotive includes converting sounds received by one or more transducer at first and second period of times into first and second electric signals and comparing a value of a signal that varies with operation, movement, or both of the locomotive to a reference value. When the signal value is one of less than or greater than the reference value during the first period of time, a controller stores a first unfiltered digitized version of the first sound in a memory. When the signal value is the other of less than or greater than the reference value during the second period of time, the controller stores in the memory a second, filtered digitized version of the second sound that is filtered in a frequency spectrum associated with the second sound.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 22, 2019
    Assignee: Westinghouse Air Brake Technologies Corporation
    Inventor: Brian E. Kurz
  • Patent number: 10455332
    Abstract: A method (300) of operating a hearing aid system (100), wherein the dynamic range of input signal levels is improved by reducing the sensitivity of an input transducer in response to a trigger event while at the same time applying a gain adapted to compensate the reduced sensitivity and a hearing aid system (100, 200) adapted to carry out the method.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 22, 2019
    Assignee: Widex A/S
    Inventor: Lars Baekgaard Jensen
  • Patent number: 10455340
    Abstract: Systems and methods for validating the operation of a transducer and an audio signal path to the transducer. An example method includes switching, with an audio switch, the audio signal path between an audio power amplifier and an analog-to-digital converter. The method includes routing an audio signal received from the transducer to the analog-to-digital converter when the audio power amplifier is not enabled. The method includes, upon receiving a button signal, processing, with an electronic processor, a digital version of the audio signal received from the analog-to-digital converter to generate a sample. The method includes comparing the sample to a reference audio sample. The method includes generating an alert when the sample does not match the reference audio sample.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 22, 2019
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Daniel Grobe Sachs, Charles B. Harmke, Ellis A. Pinder
  • Patent number: 10448134
    Abstract: The invention discloses a two-wire type microphone with ultrasonic identification, comprising: an acoustic transducer for capturing an acoustic signal; a signal processing chip, connected to a signal output terminal of the acoustic transducer, wherein the signal processing chip comprises a signal output terminal pin, a ground pin and an ultrasonic generator, wherein the ultrasonic generator is the configured for generating an ultrasonic signal, and a control terminal of the ultrasonic generator is connected to the signal processing chip. The beneficial effects of the present invention includes: the ultrasonic signal generated by the ultrasonic generator is utilized to match the ultrasonic signal with the encoding unit in the signal processing chip for identification, and a remote authentication by the client is useful for matching the electronic device with the microphone.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 15, 2019
    Assignees: ZILLTEK TECHNOLOGY (SHANGHAI) CORP., TELLTEK TECHNOLOGY CORP.
    Inventor: Jinghua Ye
  • Patent number: 10440473
    Abstract: An electronic device that performs automatic de-baffling is described. Based at least in part on information corresponding to a boundary of an environment (which may be acquired by a sensor, such as a microphone or an image sensor), the electronic device may determine a location of the boundary, which is proximate to the electronic device. Then, based at least in part on the location, the electronic device may calculate a modified acoustic radiation pattern of the electronic device, where a superposition of the modification acoustic radiation pattern and acoustic reflections from the boundary approximately matches a target acoustic radiation pattern of the electronic device. Next, using the modified acoustic radiation pattern, the electronic device may output sound corresponding to audio content from a set of drivers.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 8, 2019
    Assignee: EVA Automation, Inc.
    Inventor: Jonathan Moore
  • Patent number: 10425768
    Abstract: One embodiment provides a method, including: detecting, using a processor, a presence of a known device within a predetermined range; and adjusting, using the processor, an audio output volume based on the presence of the known device. Other aspects are described and claimed.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 24, 2019
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Gary David Cudak, Nathan J. Peterson, Amy Leigh Rose, Jennifer Lee-Baron, John Scott Crowe, Bryan Loyd Young
  • Patent number: 10419864
    Abstract: Examples described herein involve validating motion of a microphone during calibration of a playback device. An example implementation involves a control device receiving an indication that the control device will begin detecting audio signals emitted from playback devices as part of a calibration process. While the control device is detecting audio signals emitted from the playback devices, the control device receives a stream of motion data indicating movement of the control device. The control device processes a first subset of the stream of motion data to determine that the first subset of the stream of motion data indicates sufficient horizontal translation of the control device occurred. Based on determining that the first subset of the stream of motion data indicates sufficient horizontal translation of the control device, the control device processes a second subset of the stream of motion data.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: September 17, 2019
    Assignee: Sonos, Inc.
    Inventors: Jonathan Downing, Timothy Sheen, Daniel Valente
  • Patent number: 10412492
    Abstract: A directional sound playing system using ultrasonic sound sources, the ultrasonic sound sources being installed on a surface of a supporting body. The directional sound playing system includes a setting module, a first detecting module, and a driving control module. The setting module sets a distribution position of each of the ultrasonic sound sources on the surface of the supporting body according to the angle of output of each of the ultrasonic sound sources and a requirement angle of a listener. The first detecting module obtains location information of the listener. The driving control module selects and drives one or more ultrasonic sound sources to transmit and direct ultrasonic sound corresponding to the location information of the listener. A directional sound playing method is also provided.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 10, 2019
    Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.
    Inventor: Hsiao-Jen Tsai
  • Patent number: 10412516
    Abstract: Example techniques involve calibration of multiple playback devices. An example implementation receives, via a user interface of the network device, an input to initiate calibration of a group of playback devices comprising a first playback device and a second playback device configured to playback audio content in synchrony. After initiating the calibration of the group of playback devices, the implementation detects audio content rendered synchronously by the first playback device and the second playback device. Based on the detected audio content, the implementation determines a first equalization adjustment for the first playback device and a second equalization for the second playback device and causes the first playback device to apply the first equalization adjustment and the second playback device to apply the second equalization adjustment when the first playback device and the second playback device play audio content synchronously as part of the group of playback devices.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: September 10, 2019
    Assignee: Sonos, Inc.
    Inventors: Ananth Jasty, Aurelio Ramos, Timothy Sheen
  • Patent number: 10403263
    Abstract: A noise-cancellation system, including: a plurality of sensors, each sensor outputting a sensor signal; a controller configured to receive each sensor signal, and, for each sensor signal, to: determine a power of the sensor signal at a plurality of frequencies; determine a measure of association between the power of the sensor signal at the plurality of frequencies and frequency; and determine whether the measure of association exceeds a predetermined threshold, wherein the processor is further configured to compute a noise-cancellation signal using the sensor signals, wherein the noise-cancellation signal is computed excluding sensor signals that were determined to exceed the predetermined threshold; and at least one actuator receiving the noise-cancellation signal and producing a noise-cancellation audio signal.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 3, 2019
    Assignee: Bose Corporation
    Inventor: Ankita D. Jain
  • Patent number: 10389324
    Abstract: An audio reproduction device includes: a signal amplifier that amplifies an input signal; a characteristic measuring device that obtains a characteristic of the speaker device based on a supply signal obtained by using, as the input signal, a measurement signal having a predetermined frequency characteristic; a structure analyzer that identifies a structure of the speaker device based on a result obtained by the characteristic measuring device; a delay characteristic calculator that calculates a delay characteristic of the speaker device according to the identified structure of the speaker device; a correction parameter generator that generates a correction parameter based on a difference between the delay characteristic calculated by the delay characteristic calculator and a target delay characteristic; and a corrector that corrects the input signal input to the signal amplifier based on the correction parameter generated by the correction parameter generator.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: August 20, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Kazuya Iwata
  • Patent number: 10387489
    Abstract: A media playlist is generated in which media items have a tempo matching a target tempo. The content server receives a seed value and a tempo signal from a client device. The tempo signal indicates a target tempo specified by the user. The content server calculates a target tempo range associated with the target tempo and generates a filtered playlist of media items based on the seed value and the target tempo range. The media items in the in the filtered playlist have tempos within the target tempo range. The content server provides the media items in the filtered playlist to the client device.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: August 20, 2019
    Assignee: Pandora Media, Inc.
    Inventors: David H. Reiley, Jr., Andreas Ehmann, Walker Phillips, Myra Chachkin, Maria Cantu Chavez
  • Patent number: 10390161
    Abstract: Example techniques may involve multiple calibrations for a playback device. In an example implementation, a first playback device, while playing back a first type of audio content via the one or more audio amplifiers configured to drive one or more speakers, applies a first calibration that offsets acoustic characteristics of a given environment when applied to playback by the first playback device. While playing back a second type of audio content via the one or more audio amplifiers configured to drive one or more speakers, the first playback device applies a second calibration that offsets acoustic characteristics of the given environment when applied to playback by the first playback device and calibrates the first playback device to one or more particular locations within the given environment.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: August 20, 2019
    Assignee: Sonos, Inc.
    Inventors: Klaus Hartung, Dayn Wilberding
  • Patent number: 10372193
    Abstract: A device (102) detects when a user is in close physical proximity to the device, such as within a few feet of the device. While the user is in close physical proximity to the device, the device also detects the location of the user relative to the device, and optionally a speed at which the user is moving. The user interface presented by the device is adapted to the location of the user relative to the device and optionally the speed at which the user is moving, but without needing physical manipulation of the device by the user. The adaptation can include, for example, orienting content presented on a display of the device based on the location of the user relative to the device so that the content appears “upright” or “right side up” for the user to view given their location.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: August 6, 2019
    Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
    Inventors: Roger W. Ady, Rachid Alameh, Paul R. Steuer
  • Patent number: 10365887
    Abstract: Systems and methods for generating command indications, via a computing device, based on audio data including a keyword are described. The computing device receives and processes audio data to determine whether the audio data includes a keyword. The keyword may be a device user identifier, such as an individual's name. Once a keyword is detecting, audio data surrounding the keyword is processed to determine a command contained within the surrounding data, and the command is conveyed to the computing device's user either audibly or visually. Alternatively, a location of the device is determined, a command is determined based on the device's location, and the command is conveyed to a user of the device either audibly or visually.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 30, 2019
    Assignee: Amazon Technologies, Inc.
    Inventor: Mandar Mulherkar
  • Patent number: 10341794
    Abstract: Audio speaker systems and methods are provided to detect movement of the speaker system or other device. An audio program content signal is converted into an acoustic signal, and the acoustic signal causes an echo signal. The echo signal is received and a relationship of the echo signal to the audio program content signal is quantified. A quantified value is compared to a stored quantified value and, based upon the comparison, a change in physical position is selectively indicated.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: July 2, 2019
    Assignee: BOSE CORPORATION
    Inventors: Eric Freeman, Joseph Gaalaas