Monitoring/measuring Of Audio Devices Patents (Class 381/58)
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Patent number: 10638228Abstract: 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: GrantFiled: December 29, 2016Date of Patent: April 28, 2020Inventor: Jeffery James Coombs
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Patent number: 10629177Abstract: 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: GrantFiled: August 30, 2018Date of Patent: April 21, 2020Assignee: YAMAHA CORPORATIONInventor: Akira Maezawa
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Patent number: 10602301Abstract: 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: GrantFiled: September 6, 2018Date of Patent: March 24, 2020Assignee: 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
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Patent number: 10587943Abstract: 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: GrantFiled: July 7, 2017Date of Patent: March 10, 2020Assignee: BRAGI GmbHInventors: Peter Vincent Boesen, Eric Christian Hirsch
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Patent number: 10585639Abstract: 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: GrantFiled: November 7, 2018Date of Patent: March 10, 2020Assignee: Sonos, Inc.Inventor: Timothy W. Sheen
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Patent number: 10582321Abstract: 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: GrantFiled: September 29, 2016Date of Patent: March 3, 2020Assignee: Verizon Patent and Licensing Inc.Inventors: Gaurav Goel, Kiran Naiga
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Patent number: 10567871Abstract: 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: GrantFiled: September 6, 2018Date of Patent: February 18, 2020Assignee: Sony CorporationInventors: James R. Milne, Allison Joi Burgueno, Gregory Peter Carlsson, Keith Resch
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Patent number: 10551274Abstract: 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: GrantFiled: November 9, 2017Date of Patent: February 4, 2020Assignee: ITRON, INC.Inventor: Philip Alan Cole
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Patent number: 10547958Abstract: 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: GrantFiled: April 26, 2018Date of Patent: January 28, 2020Assignee: Peiker Acustic GmbH & Co. KGInventor: Michael Klose
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Patent number: 10531221Abstract: 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: GrantFiled: June 22, 2018Date of Patent: January 7, 2020Assignee: EVA Automation, Inc.Inventor: Jonathan Moore
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Patent number: 10530917Abstract: 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: GrantFiled: March 8, 2018Date of Patent: January 7, 2020Assignee: 2236008 Ontario Inc.Inventors: Mark Robert Every, Mark William Harvey, Rodney Dwight Rempel, Michael Andrew Percy
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Patent number: 10523896Abstract: 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: GrantFiled: November 2, 2018Date of Patent: December 31, 2019Assignee: MobiTV, Inc.Inventor: Torbjorn Einarsson
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Patent number: 10524052Abstract: 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: GrantFiled: May 4, 2018Date of Patent: December 31, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventor: Sunil Bharitkar
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Patent number: 10524053Abstract: 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: GrantFiled: June 22, 2018Date of Patent: December 31, 2019Assignee: EVA Automation, Inc.Inventor: Jonathan Moore
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Patent number: 10511906Abstract: 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: GrantFiled: June 22, 2018Date of Patent: December 17, 2019Assignee: EVA Automation, Inc.Inventor: Jonathan Moore
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Patent number: 10484809Abstract: 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: GrantFiled: June 22, 2018Date of Patent: November 19, 2019Assignee: EVA Automation, Inc.Inventor: Jonathan Moore
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Patent number: 10484799Abstract: 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: GrantFiled: September 26, 2018Date of Patent: November 19, 2019Assignees: ZILLTEK TECHNOLOGY (SHANGHAI) CORP., ZILLTEK TECHNOLOGY CORP.Inventor: Jinghua Ye
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Patent number: 10466961Abstract: 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: GrantFiled: January 2, 2019Date of Patent: November 5, 2019Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.Inventor: Zongye Yang
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Patent number: 10453440Abstract: 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: GrantFiled: October 5, 2018Date of Patent: October 22, 2019Assignee: Westinghouse Air Brake Technologies CorporationInventor: Brian E. Kurz
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Patent number: 10455340Abstract: 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: GrantFiled: May 11, 2018Date of Patent: October 22, 2019Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Daniel Grobe Sachs, Charles B. Harmke, Ellis A. Pinder
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Patent number: 10455332Abstract: 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: GrantFiled: February 9, 2017Date of Patent: October 22, 2019Assignee: Widex A/SInventor: Lars Baekgaard Jensen
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Patent number: 10448134Abstract: 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: GrantFiled: May 29, 2018Date of Patent: October 15, 2019Assignees: ZILLTEK TECHNOLOGY (SHANGHAI) CORP., TELLTEK TECHNOLOGY CORP.Inventor: Jinghua Ye
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Patent number: 10440473Abstract: 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: GrantFiled: June 22, 2018Date of Patent: October 8, 2019Assignee: EVA Automation, Inc.Inventor: Jonathan Moore
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Patent number: 10425768Abstract: 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: GrantFiled: September 30, 2015Date of Patent: September 24, 2019Assignee: Lenovo (Singapore) Pte. Ltd.Inventors: Gary David Cudak, Nathan J. Peterson, Amy Leigh Rose, Jennifer Lee-Baron, John Scott Crowe, Bryan Loyd Young
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Patent number: 10419864Abstract: 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: GrantFiled: June 4, 2018Date of Patent: September 17, 2019Assignee: Sonos, Inc.Inventors: Jonathan Downing, Timothy Sheen, Daniel Valente
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Patent number: 10412516Abstract: 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: GrantFiled: November 7, 2017Date of Patent: September 10, 2019Assignee: Sonos, Inc.Inventors: Ananth Jasty, Aurelio Ramos, Timothy Sheen
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Patent number: 10412492Abstract: 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: GrantFiled: November 29, 2018Date of Patent: September 10, 2019Assignee: NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.Inventor: Hsiao-Jen Tsai
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Patent number: 10403263Abstract: 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: GrantFiled: December 14, 2018Date of Patent: September 3, 2019Assignee: Bose CorporationInventor: Ankita D. Jain
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Patent number: 10390161Abstract: 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: GrantFiled: June 18, 2018Date of Patent: August 20, 2019Assignee: Sonos, Inc.Inventors: Klaus Hartung, Dayn Wilberding
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Patent number: 10387489Abstract: 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: GrantFiled: January 6, 2017Date of Patent: August 20, 2019Assignee: Pandora Media, Inc.Inventors: David H. Reiley, Jr., Andreas Ehmann, Walker Phillips, Myra Chachkin, Maria Cantu Chavez
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Patent number: 10389324Abstract: 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: GrantFiled: September 16, 2016Date of Patent: August 20, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Kazuya Iwata
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Patent number: 10372193Abstract: 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: GrantFiled: August 15, 2017Date of Patent: August 6, 2019Assignee: GOOGLE TECHNOLOGY HOLDINGS LLCInventors: Roger W. Ady, Rachid Alameh, Paul R. Steuer
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Patent number: 10365887Abstract: 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: GrantFiled: March 25, 2016Date of Patent: July 30, 2019Assignee: Amazon Technologies, Inc.Inventor: Mandar Mulherkar
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Patent number: 10341767Abstract: Speaker protection may be based on multiple speaker models with oversight logic that controls the speaker protection based on the multiple speaker models. At least one of the speaker models may be based on a speaker excursion determined from feedback information from the speaker, such as a current or voltage measured at the speaker. Excursion based on the speaker feedback may be used to determine an error in an excursion prediction made from the audio signal. The excursion prediction may then be compensated for that error. In some embodiments, a direct displacement estimate of excursion generated from speaker monitor signals is used to correct a fixed excursion model applied to an input audio signal.Type: GrantFiled: October 24, 2017Date of Patent: July 2, 2019Assignee: Cirrus Logic, Inc.Inventors: Jason Lawrence, Roberto Napoli, Rong Hu
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Patent number: 10341794Abstract: 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: GrantFiled: July 24, 2017Date of Patent: July 2, 2019Assignee: BOSE CORPORATIONInventors: Eric Freeman, Joseph Gaalaas
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Patent number: 10324113Abstract: The overall performance of a current sense amplifier system may be improved by increasing the common mode rejection of the system. In particular, improved current sense amplifiers may be configured to use a first signal path coupled to the amplifier and a first input terminal, wherein the first signal path is configured to measure the current through a device by generating a voltage proportional to the measured current, wherein the generated voltage includes a small signal voltage with a large common mode voltage, and a second signal path coupled to the amplifier and the first input terminal, wherein the second signal path is configured to reduce the common mode of the generated voltage by level shifting the generated voltage to reduce the common mode voltage.Type: GrantFiled: March 14, 2016Date of Patent: June 18, 2019Assignee: Cirrus Logic, Inc.Inventors: Vamsikrishna Parupalli, Itisha Tyagi
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Patent number: 10327089Abstract: Systems and methods for positioning an output element (102, 602) within a three-dimensional environment (104, 604) are described. Movement data relating to movement of a mobile device (120, 620) is obtained (206, 262). The movement data is mapped (208, 264) to movement of a simulated output element (503) in a virtual environment (505), which simulates the three-dimensional environment. The movement of the simulated output element is associated with movement of an output element within the three-dimensional environment so as to control the position of the output element within the three-dimensional environment. In one exemplary embodiment an output element (102) being a sound source is positioned in a three-dimensional, immersive sound environment (104). In another exemplary embodiment a focal point of a light beam (602) is positioned in a three-dimensional theatrical environment (604).Type: GrantFiled: April 14, 2016Date of Patent: June 18, 2019Assignees: DSP4YOU LTD.Inventors: Richard Foss, Antoine Rouget
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Patent number: 10306350Abstract: An electronic device may include an optical proximity sensor system. The optical proximity sensor system may be a transreflective optical proximity sensor system having a light emitter that emits light into a light-emitting region and a light detector that detects light in a light-detecting region. Control circuitry in the device can use the transreflective optical proximity sensor system to detect objects in an object detection region formed where the light-emitting region and light-detecting region overlap. The electronic device may be a pair of headphones in which housing structures such as housing walls define ear cup cavities. Speakers may be provided in the ear cups of the headphones to provide sound to the ear cup cavities. The transreflective optical proximity sensor system can detect the presence of a user's ear in an ear cup cavity.Type: GrantFiled: July 23, 2018Date of Patent: May 28, 2019Assignee: Apple Inc.Inventors: Tsu-Hui Lin, Wenrui Cai, Xiaoyang Zhang, Yuta Kuboyama, Praveesh Chandran
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Patent number: 10290296Abstract: An integrated circuit may include an output for providing an output signal to a transducer including both a source audio signal for playback to a listener and an anti-noise signal for countering the effect of ambient audio sounds in an acoustic output of the transducer, an ambient microphone input for receiving an ambient microphone signal indicative of the ambient audio sounds; an error microphone input for receiving an error microphone signal indicative of the output of the transducer and the ambient audio sounds at the transducer; and a processing circuit that implements a feedback path having a feedback response that generates a feedback anti-noise signal from the error microphone signal, wherein a signal gain of the feedback path is a function of the ambient microphone signal, and wherein the anti-noise signal comprises at least the feedback anti-noise signal.Type: GrantFiled: October 28, 2016Date of Patent: May 14, 2019Assignee: Cirrus Logic, Inc.Inventors: Jon D. Hendrix, Jeffrey D. Alderson, Chin Huang Yong, Ryan A. Hellman
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Patent number: 10289379Abstract: An apparatus is provided in which a user can easily check that an appropriate audio file is assigned. A system includes a PC connected to a communication line, and an audio interface apparatus that has an immediate output switch that outputs, to the PC, a reproduction start instruction signal of an audio file which is assigned in advance in response to a user operation. The PC judges, when an audio file or a video file is assigned by a user operation and in the background, whether or not the assignment is normal, and displays a judgment result in association with a virtual switch displayed on the display corresponding to the immediate output switch. The judgment is also repeatedly executed in the background at a predetermined timing after the assignment, and when the assignment is not normal, this is displayed.Type: GrantFiled: March 22, 2017Date of Patent: May 14, 2019Assignee: TEAC CorporationInventor: Kaname Hayasaka
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Patent number: 10284965Abstract: A method facilitates the ascertainment of parameter values of a hearing aid for a user-specific auditory situation. For that purpose, blog entries from a wearer of a hearing aid are evaluated in automated fashion and the evaluation is taken as a basis for determining adapted parameter values.Type: GrantFiled: May 26, 2017Date of Patent: May 7, 2019Assignee: Sivantos Pte. Ltd.Inventor: Stefan Aschoff
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Patent number: 10283129Abstract: Systems and methods are provided herein relating to audio matching. Interest points that are onsets are generally very efficient in audio matching in that they are robust to multiple types of distortion. Prominent onsets can be detected within an audio signal excerpt as interest points and combined as a function of a set of interest points to form a descriptor. Descriptors associated with an audio signal excerpt that contain a set of prominent onsets as interest points can be used in matching the audio signal excerpt to an audio reference. The benefits in generating and using prominent onsets within descriptors improve the accuracy of an audio matching system.Type: GrantFiled: September 22, 2016Date of Patent: May 7, 2019Assignee: GOOGLE LLCInventors: Matthew Sharifi, Richard Francis Lyon
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Patent number: 10283141Abstract: A system for intelligent acoustic monitoring. The system includes a microphone to capture environmental acoustic data and a processor coupled to the microphone. The processor is configured to receive and perform acoustic analysis on the captured acoustic data to generate an acoustic signature, based on a result of the acoustic analysis, identify an event indicated by the acoustic signature, and perform a remedial action based on the identified event.Type: GrantFiled: December 22, 2017Date of Patent: May 7, 2019Inventors: Ioannis Kakadiaris, Richard Willson
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Patent number: 10268443Abstract: A method used by a terminal to detect an earphone status and a terminal are disclosed. The method includes: disabling, by a processor, a path for outputting an audio signal to a second earphone; detecting electrical signals of a first audio output end and a third audio output end of a first earphone; and determining a frequency value of a low-frequency resonant point of the first earphone according to the electrical signals of the first audio output end and the third audio output end, and determining, according to the frequency value of the low-frequency resonant point, whether the first earphone is in an in-position state. In this way, only the electrical signals of the first audio output end and the third audio output end need to be detected, and it may be determined, according to changes of the electrical signals.Type: GrantFiled: March 21, 2016Date of Patent: April 23, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Haitao Zhen, Wentao Yang, Yongxiang Yang
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Patent number: 10251008Abstract: An audio system that adjusts one or more beam patterns emitted by one or more loudspeaker arrays based on the preferences of users/listeners is described. The audio system includes an audio receiver that contains a listener location estimator, a listener identifier, and a voice command processor. Inputs from the listener location estimator, the listener identifier, and the voice command processor are fed into an array processor. The array processor drives the one or more loudspeaker arrays to emit beam patterns into the listening area based on inputs from each of these devices. By examining the location, preferred usage settings, and voice commands from listeners, the generated beam patterns are customized to the explicit and implicit preferences of the listeners with minimal direct input. Other embodiments are also described.Type: GrantFiled: September 25, 2014Date of Patent: April 2, 2019Assignee: Apple Inc.Inventors: John J. Baker, Martin E. Johnson, Afrooz Family, Michael B. Howes, Craig M. Stanley, Brad G. Boozer
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Patent number: 10237667Abstract: A measurement method of this disclosure is for evaluating an electronic device (100) that transmits air-conducted sound, generated by vibration of a vibrating body (102), to a user by the vibrating body (102) being placed in contact with a human ear. The measurement method includes placing the vibrating body (102) in contact with an ear model unit (50), measuring air-conducted sound generated by the electronic device (100) and air-conducted sound generated in the ear model unit (50), and selecting a correction value from among a plurality of correction values.Type: GrantFiled: February 19, 2016Date of Patent: March 19, 2019Assignee: Kyocera CorporationInventor: Tomohiro Inagaki
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Patent number: 10218299Abstract: An object of this invention is to obtain a phase voltage detection circuit that can detect a phase voltage signal reliably even when a leak current flows therein and a DC bias voltage of the phase voltage signal varies. A phase voltage detection circuit that detects a phase voltage signal generated by an armature coil of an AC power generator includes a peak hold circuit that determines an envelope of the phase voltage signal using an operational amplifier, a voltage offsetting circuit that shifts an output voltage from the peak hold circuit by a preset offset amount, and a comparator that compares the phase voltage signal with an output voltage from the voltage offsetting circuit, and outputs a phase voltage detection signal.Type: GrantFiled: September 7, 2016Date of Patent: February 26, 2019Assignee: Mitsubishi Electric CorporationInventors: Akio Kamimurai, Keisuke Katsurada
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Patent number: 10204457Abstract: A digital camera with audio, visual and motion analysis includes a digital processor, an input processing system, and one or more imaging sensors, sound sensors, and motion sensors. In a non-limiting embodiment, the input processing system including non-transitory computer readable media including code segments, executable by the digital processor, for real-time audio, visual and motion analysis to develop a digital model of an ambient environment of the digital camera from data derived from the imaging sensor(s), sound sensor(s) and motion sensor(s).Type: GrantFiled: April 30, 2018Date of Patent: February 12, 2019Assignee: Acoustic Knowledge, LLCInventors: Charles A. G. Boyle, Caleb J. Madsen
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Patent number: 10200800Abstract: An electronic device with a microphone is used to determine a transfer function of an environment (and, more generally, an acoustic characteristic). In particular, the electronic device may use the microphone to perform acoustic measurements when the electronic device is proximate to a speaker in the environment. Then, based on the acoustic measurements and a first predetermined transfer function of the speaker, the electronic device may calculate a transfer function of the microphone in a band of frequencies. Moreover, the electronic device may use the microphone to perform additional acoustic measurements in the environment that includes the speaker. Next, based on the additional acoustic measurements, the transfer function of the microphone and a second predetermined transfer function of the speaker, the electronic device may determine the transfer function of the environment in the same or a different band of frequencies.Type: GrantFiled: February 6, 2017Date of Patent: February 5, 2019Assignee: EVA Automation, Inc.Inventor: Sean Thomson
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Patent number: 10198920Abstract: A wearable electronic device may include a wearable band and audio output transducers carried by the wearable band. The wearable electronic device may also include respective haptic actuators carried by the wearable band and adjacent respective ones of the audio output transducers. A drive circuit may be configured to concurrently drive the audio output transducers with respective first drive signals, and drive the haptic actuators with respective second drive signals different than the first drive signals.Type: GrantFiled: September 28, 2017Date of Patent: February 5, 2019Assignee: APPLE INC.Inventors: Shingo Yoneoka, Alex M. Lee, Jia Tao