Patents Examined by William A Jerez Lora
  • Patent number: 10312879
    Abstract: An audio control circuit is provided in the present disclosure. The audio control circuit includes an input module, a volume signal detecting module and a volume adjusting module. The input module is used for receiving an audio signal. The volume signal detecting module is used for receiving a volume control signal and generates a volume adjusting signal according to the volume control signal. The volume adjusting module is used for receiving the audio signal and the volume adjusting signals and generates an amplified audio signal according to the audio signal and the volume adjusting signal. The volume control signal is a pulse width modulation signal.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: June 4, 2019
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventor: Che-Chang Chang
  • Patent number: 10313772
    Abstract: An audio system is provided with a housing and at least one audio transducer that is supported by the housing. The housing includes an external surface with at least one of an aperture formed into the external surface and a post extending along an axis. The audio system is also provided with a base for supporting an accessory with at least another of the aperture and the post in cooperation with the at least one of the aperture and the post of the housing to connect the base to the housing.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 4, 2019
    Assignee: Harman International Industries, Incorporated
    Inventors: Timothy M. Nugent, Craig A. Lambrecht
  • Patent number: 10313779
    Abstract: A system, method, and wireless earpieces for implementing a virtual assistant. A first virtual assistant for a wireless device is activated in response to receiving a request. A second virtual assistant on the wireless earpieces is executed to retrieve information associated with the request. An action is implemented utilizing the wireless device to fulfill the request utilizing the information.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: June 4, 2019
    Inventor: Peter Vincent Boesen
  • Patent number: 10299064
    Abstract: One embodiment of the present invention sets forth a technique for generating an audio event within a listening environment. The technique includes determining a speaker orientation based on a location of the audio event within a sound space being generated within the listening environment and causing a speaker to be positioned according to the speaker orientation. The technique further includes, while the speaker is positioned according to the speaker orientation, causing the audio event to be transmitted by the speaker.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: May 21, 2019
    Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Davide Di Censo, Stefan Marti
  • Patent number: 10291996
    Abstract: A vehicle includes one or more microphones that are each configured to selectively provide sound signals from one or more seating positions in the vehicle. A controller is programmed to receive an input indicative of a request to enter a group conversation mode upon initiation of a call, and, responsive to receiving the input, enable the microphones to selectively provide sound signals from all of the seating positions.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: May 14, 2019
    Assignee: FORD GLOBAL TEHNOLOGIES, LLC
    Inventors: Christian Edward Shaffer, Ryan Andrew Sikorski
  • Patent number: 10283105
    Abstract: The technology described in this document can be embodied in a computer-implemented method that includes receiving a first plurality of values representing a set of current coefficients of an adaptive filter disposed in an active noise cancellation system. The method also includes computing a second plurality of values each of which represents an instantaneous difference between a current coefficient and a corresponding preceding coefficient of the adaptive filter, and estimating, based on the second plurality of values, one or more instantaneous magnitudes of a transfer function that represents an effect of a secondary path of the active noise cancellation system. The method further includes updating the first plurality of values based on estimates of the one or more instantaneous magnitudes to generate a set of updated coefficients for the adaptive filter, and programming the adaptive filter with the set of updated coefficients.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 7, 2019
    Assignee: Bose Corporation
    Inventors: Emery M. Ku, Paraskevas Argyropoulos
  • Patent number: 10283140
    Abstract: Systems and methods for enhancing reverberated audio signals are disclosed. In one embodiment, a method is disclosed comprising receiving an audio signal; partitioning a frequency domain representation of the audio signal into a plurality of sub-band vectors; inputting each sub-band vector into a corresponding deep neural network; calculating, using the corresponding deep neural networks, a plurality of output vectors for each sub-band; concatenating the plurality of output vectors to generate a clean audio feature matrix; and converting the clean audio feature matrix into a time-domain audio signal.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: May 7, 2019
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Tao Yu, Ming Tu, Gang Liu
  • Patent number: 10284941
    Abstract: An earphone has a housing with a signal process unit to output sound. The housing has a chamber and a speaker mounted inside the chamber. The chamber is defined as a front volume and a rear volume by the speaker, and the rear volume having a port. Wherein the speaker in the volume outputting a chamber frequency response curve is at least a portion higher than the earphone's ideal frequency response curve at the bandwidth ranging from 20 Hz to 1000 Hz, where creates a gain difference between the chamber frequency response curve and the ideal frequency response curve to be decreased the (superfluous) positive value by a signal process unit at the bandwidth ranging from 20 Hz to 1000 Hz. Therefore, the total acoustic energy is maintained, the earphone acoustic quality is preserved, and the earphone volume may output even higher power to be deduced by the signal process unit for lowering down the circuit power consumption.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: May 7, 2019
    Assignee: MERRY ELECTRONICS (SHENZHEN) CO., LTD.
    Inventors: Chia Chung Lin, Jyun Neng Liao
  • Patent number: 10277970
    Abstract: There is provided a microphone unit (1) for an action camera, comprising a microphone capsule (10) having at least one speaking hole (11), and a water-tight enclosure (20) which water-tightly encloses the microphone capsule (10). The water-tight enclosure (20) has a water-impermeable passive diaphragm (25) which can oscillate freely and which allows incoming sound to pass substantially undisturbed. The microphone unit has a head (30) having a plurality of holes (31), the head (30) being provided outside the enclosure (20) in front of the passive diaphragm (25). The microphone unit further has a foam portion (40) which is provided in front of the head (30) and has an open-pore foam. The foam portion (40) is in contact with the head (30). The passive diaphragm (25) has an oscillatable minimum area of 20 mm2; wherein the foam portion (40) has pores which are sufficiently small so that the foam portion (40) can suck water residues away from the holes (31) in the head (30) like a sponge.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 30, 2019
    Assignee: Sennheiser electronic GmbH & Co. KG
    Inventors: Michael Horn, Manfred Kurbis, Lars Heine, Raimund Staat
  • Patent number: 10276143
    Abstract: Methods and apparatuses for addressing open space noise are disclosed. In one example, a method for masking open space noise includes receiving a sensor data from a sensor arranged to monitor an open space over a time period. The method includes generating a predicted future noise parameter in the open space at a predicted future time from the sensor data. The method further includes adjusting a sound masking noise output from a loudspeaker prior to the predicted future time responsive to the predicted future noise parameter.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 30, 2019
    Assignee: Plantronics, Inc.
    Inventors: Vijendra G. R. Prasad, Beau Wilder, Evan Harris Benway, Philip Sherburne
  • Patent number: 10271152
    Abstract: Embodiments of wireless audio systems and methods for synchronizing wireless headphones are disclosed herein. In one example, a wireless audio system includes an audio source, a first wireless headphone, and a second wireless headphone. The audio source is configured to separately transmit a left-channel audio signal and a right-channel audio signal using a short-range wireless communication protocol. The first wireless headphone is configured to receive the left-channel audio signal and synchronize a first clock of the first wireless headphone with the audio source based on the left-channel audio signal. The second wireless headphone is configured to receive the right-channel audio signal and synchronize a second clock of the second wireless headphone with the audio source based on the right-channel audio signal, so that the first clock of the first wireless headphone is synchronized with the second clock of the second wireless headphone.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 23, 2019
    Assignee: BESTECHNIC (SHANGHAI) CO., LTD.
    Inventors: Weifeng Tong, Dongsheng Cui, Hua Zeng, Yulong Wang
  • Patent number: 10264358
    Abstract: Synchronized output of audio on a group of devices can comprise sending audio data from an audio distribution master device to one or more slave devices in the group. Scores can be assigned to respective audio playback devices, the scores being indicative of a performance level of the respective audio playback devices acting as a master device. The device with the highest score is designated as a candidate master device and one or more remaining devices are designated as a candidate slave(s). A throughput test is conducted with the highest scoring device acting as the candidate master device. The results of the throughput test are used to determine a master device for a group of devices. Latency of the throughput test can be reduced by using a prescribed time period for completion of the throughput test, and/or by selecting a first group configuration to passes the throughput test.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 16, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Fred Torok, Michael Alan Pogue, Vikram Kumar Gundeti, Dharini Sundaram
  • Patent number: 10264363
    Abstract: A MEMS microphone with an improved sensitivity, e.g., a reduced temperature dependence of the sensitivity. The microphone includes a MEMS capacitor, a charging circuit and a bias circuit. The bias circuit includes a closed loop control circuit and creates a bias voltage with a temperature dependence.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 16, 2019
    Assignee: TDK Corporation
    Inventors: Lei Zou, Gino Rocca
  • Patent number: 10257633
    Abstract: A sound-reproducing method that includes the steps outlined below is provided. A playback sound is generated by applying original audio into a test environment. The playback sound is received to generate received sound data. At least one test environment spatial parameter corresponding to the test environment is calculated according to known audio data related to the original audio and the received sound data. Input audio is modified by applying the test environment spatial parameter thereto to generate reproduced audio.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 9, 2019
    Assignee: HTC Corporation
    Inventors: Chi-Tang Ho, Li-Yen Lin, Tsung-Yu Tsai, Chun-Min Liao, Yan-Min Kuo
  • Patent number: 10257606
    Abstract: Systems, methods, and devices for determining a frequency of a received audio signal. A device may include a microphone, a speaker, and a processor configured to perform operations including receiving, using the microphone, a first audio signal having a predetermined frequency. The operations may also include, for each test frequency of a plurality of test frequencies and for each test phase of a plurality of test phases, generating a second audio signal having the test frequency and the test phase, outputting, using the speaker, the second audio signal, receiving, using the microphone, a combined audio signal being a combination of the first audio signal and the second audio signal, determining an amplitude of the combined audio signal, and determining that the predetermined frequency is within a threshold range of the test frequency when the amplitude of the combined audio signal is below a threshold.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: April 9, 2019
    Assignee: Cubic Corporation
    Inventor: Tom Vilhelmsen
  • Patent number: 10255927
    Abstract: An audio processing scheme is described. In an example, an apparatus comprises: at least two acoustic sensors through which audio content is received; at least one other sensor; an audio processor connected to the sensors and configured to receive audio information from the acoustic sensors and other information from the other sensor. The audio processor is configured to determine a use case of the apparatus based on the audio information and the other information. The audio processor is configured to adjust at least one audio processing scheme for the apparatus based on the determined use case. In other examples, a method and a computer program product are described.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: April 9, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Anu Huttunen, Mari Partio
  • Patent number: 10257630
    Abstract: A method of estimating an individualized head-related transfer function (HRTF) and an individualized interaural time difference function (ITDF) of a particular person, comprising the steps of: a) obtaining a plurality of data sets (Li, Ri, Oi), each comprising a left and a right audio sample (Li, Ri) from a pair of in-ear microphones, and orientation information (Oi) from an orientation unit, measured in a test-arrangement whereby an acoustic test signal is rendered via a loudspeaker; b) storing the data sets in a memory; c) estimating the directions of the loudspeaker relative to the person based on the orientation data and the audio data; d) estimating the ITDF based on the data sets and on the estimated relative position/orientation; e) estimating the HRTF, based on the data sets and based on the estimated relative position/orientation.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: April 9, 2019
    Assignee: UNIVERSITEIT ANTWERPEN
    Inventors: Jonas Reijniers, Herbert Godelieve P Peremans, Bart Wilfried M Partoens
  • Patent number: 10257637
    Abstract: One embodiment of the present invention sets forth a technique for transmitting an audio event to an ear of a user. The technique includes acquiring sensor data associated with the ear of the user and analyzing the sensor data to determine a position of the ear. The technique further includes determining a speaker orientation based on the position of the ear and a location of a shoulder-mounted speaker. The technique further includes causing the shoulder-mounted speaker to transmit the audio event to the ear of the user based on the speaker orientation.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 9, 2019
    Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Davide Di Censo, Stefan Marti
  • Patent number: 10250999
    Abstract: A circuit for biasing a MEMS microphone includes a first group of serially-coupled transistors coupled between a first node and a second node, a second group of serially-coupled transistors coupled between the first node and the second node, and a voltage divider circuit coupled to the second node having a number of outputs, a first group of outputs being coupled to corresponding control nodes associated with the first group of serially-coupled transistors, and a second group of outputs different from the first group of outputs coupled to corresponding control nodes associated with the second group of serially-coupled transistors, the control nodes being either bulk nodes or gate nodes.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: April 2, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Francesco Polo, Richard Gaggl, Benno Muehlbacher, Luca Valli
  • Patent number: 10239750
    Abstract: In a method of inferring ambient atmospheric temperature, an acoustic signal is emitted from a speaker. A first sample of the acoustic signal is captured with a first microphone spaced a first distance from the speaker. A second sample of the acoustic signal is captured with a second microphone spaced a second distance from the speaker. The second distance is greater than the first distance, and a difference between the first distance and the second distance is a known third distance. A time delay in the acoustic signal is determined between the first sample and the second sample. An ambient temperature of the atmosphere through which the acoustic signal traveled is inferred based on a relationship between the time delay and temperature for the acoustic signal over the third distance.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: March 26, 2019
    Assignee: InvenSense, Inc.
    Inventor: William Kerry Keal