Automatic Patents (Class 381/107)
  • Patent number: 11163524
    Abstract: When the volume is adjusted in a multi-speaker system, it is desirable that one speaker does not change volume disproportionately with respect to another speaker. A method is presented for adjusting a volume level of one or more speakers. Each speaker can have a non-standardized relationship between logical volume level that is input to the speaker and sound pressure level that is produced by the speaker. A selected volume level, corresponding to a sound pressure level, can be received via a user interface. A stored lookup table can be accessed to convert the sound pressure level to a first product-specific logical volume level for each speaker. The stored lookup table can tabulate the non-standardized relationship between logical volume level and sound pressure level for each speaker. Data corresponding to the first product-specific logical volume level can be transmitted to each speaker.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: November 2, 2021
    Assignee: DTS, Inc.
    Inventor: Dannie Lau
  • Patent number: 11157235
    Abstract: A method of verifying audio notifications generated within a vehicle includes generating an audio notification using an audio generation path that includes at least a controller, an audio notification generator and a speaker, wherein the controller generates an audio notification request utilized by the audio notification generator to generate an audio signal, and wherein the speaker converts the audio signal into the audio notification. The method further includes monitoring sounds within the vehicle using a microphone separate from the audio generation path and analyzing the monitored sounds using an audio analyzer, wherein the audio analyzer verifies whether the audio notification was generated. Feedback is provided to the audio generation path regarding whether generation of the audio notification was verified.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: October 26, 2021
    Inventors: Dan D. Carman, Kirk A. Bailey, Douglas A. Srail, Kevin W. Kaster
  • Patent number: 11138981
    Abstract: Systems and methods for detection, classification, and diagnosis of vocal anomalies in vocal streams are disclosed. Discussed are a method for generating a biometric voiceprint for analyzing user vocal streams to detect and classify vocal anomalies and a method for notifying the appropriate party, where the notification is based on the diagnosis reported by the system. Manual classification in the event of automatic classification failure is discussed, where the manual classification data can be used as training data to improve the functionality of the classification model.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 5, 2021
    Assignee: I2X GMBH
    Inventors: Samuel Brown, Mehak Khajuria, Michael Brehm
  • Patent number: 11128925
    Abstract: Automatic control of media presentation parameters is provided by using one or more of real-time audio playback measurement data from microphones and audience facial and body expression interpretation from video and infrared cameras, in conjunction with artificial intelligence for interpretation and evaluation of facial and body expression and predetermined perceptual audio models. Media presentation parameters can include, for example, speaker volume, audio equalization, feedback elimination, play/pause, and other audio content-related aspects of presentation. In some embodiments, additional environmental parameters can be modified to enhance audience experience, such as, for example, temperature, lighting, and the like, in response to audience facial and body expression.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: September 21, 2021
    Assignee: NXP USA, INC.
    Inventors: Haku Sato, Paul M. Herbst
  • Patent number: 11095990
    Abstract: A microphone assembly comprising: a housing including a base, a cover, and a sound port; a MEMS transducer element disposed in the housing, the transducer element configured to convert sound into a microphone signal voltage at a transducer output; and a processing circuit. The processing circuit comprising a transconductance amplifier comprising an input node connected to the transducer output for receipt of the microphone signal voltage, the transconductance amplifier being configured to generate an amplified current signal representative of the microphone signal voltage in accordance with a predetermined transconductance of the transconductance amplifier; and an analog-to-digital converter comprising an input node connected to receive the amplified current signal, said analog-to-digital converter being configured to sample and quantize the amplified current signal to generate a corresponding digital microphone signal.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: August 17, 2021
    Assignee: Knowles Electronics, LLC
    Inventors: Kristian Adelbert Hansen, Henrik Thomsen, Mohammad Shajaan, Jens Tingleff, Claus Erdmann Fürst
  • Patent number: 11086591
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for dynamic volume adjustment via audio classification. Examples methods include analyzing, with a neural network trained model, a parameter of an audio signal associated with a first volume level to determine a classification group associated with the audio signal, determining an input volume of the audio signal, the selection based on the classification group associated with the audio signal, applying a gain value to the audio signal, the gain value based on the classification group and the input volume, the gain value to modify the first volume level to a second volume level, and applying a compression value to the audio signal, the compression value to modify the second volume level to a third volume level that satisfies a target volume threshold.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: August 10, 2021
    Assignee: GRACENOTE, INC.
    Inventors: Markus Cremer, Robert Coover, Steven D. Scherf, Cameron Aubrey Summers
  • Patent number: 11076216
    Abstract: Example techniques may involve headphone interaction. An implementation may include while headphones are disconnected from a control device, the control device receiving an indication of particular audio content being played back by a first zone of the media playback system. While the particular audio content is being played back by the one or more playback devices of the media playback system, detecting that headphones have been connected to the first control device. Headphones may be connectable to the control device via either (a) an analog headphone jack or (b) a point-to-point personal area network connection. In response to detecting that the headphones are connected to the control device: the control device (i) causing the one or more playback devices of the first zone to stop playback of the particular audio content; (ii) retrieving the particular audio content and (iii) resuming playback of the particular audio content via the connected headphones.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: July 27, 2021
    Assignee: Sonos, Inc.
    Inventors: Eric Clayton, Charles Alessi
  • Patent number: 11032604
    Abstract: Control techniques are disclosed for devices that are members of ad hoc rendering networks. A first network device may receive a data record representing state of the network. The data record may contain data identifying device(s) that are members of the network, any grouping(s) of the device(s) defined for the network, and a play state of the device(s). When the first network device receives the data record, it may store the data record locally at the first player device. The first player device may determine whether the data record possesses a command altering a play state of a device. If so and if the command is addressed to the first player device, the first player device may execute the command at the first player device. The data record may be relayed among all devices in the ad hoc rendering network, and each device may perform this same process. In this manner, state updates propagate to all devices that are members of the rendering network, and all such devices store state data of all other devices.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: June 8, 2021
    Assignee: Apple Inc.
    Inventors: Johannes Schmidt, Kevin Shen, David Saracino, Simon Goldrei
  • Patent number: 11012775
    Abstract: An audio system, including at least one approximating circuit, the at least one approximating circuit configured to apply an approximated gain to the input signal, the least one approximating circuit outputting an approximated signal; a limiter configured to reduce a magnitude of the input signal by a gain determined by an amount the magnitude of the approximated filtered signal exceeds a predetermined threshold, the limiter outputting a limited input signal; a filter being respectively configured to receive the limited input signal and to respectively apply a filter gain, the filters outputting a plurality of filtered signals, wherein the approximated gain is substantially similar to the filter gain of one of the plurality of equalization filters; and a speaker array comprising a plurality of speakers, each speaker configured to receive a respective filtered signal of the plurality of filtered signals and to transduce the filtered signal to an audio signal.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: May 18, 2021
    Assignee: Bose Corporation
    Inventors: Jeffery R. Vautin, Nicholas Lade, Muhammad Haris Usmani
  • Patent number: 10992273
    Abstract: Provided are an electronic device and an operation method thereof. The operation method of an electronic device for processing an audio signal may include obtaining viewing environment information related to sound intelligibility, processing an input audio signal by separating the input audio signal into a first channel including a primary signal and a second channel including an ambient signal based on the viewing environment information, processing the input audio signal based on a frequency band and based on the viewing environment information, and generating an output signal based on processing the input audio signal.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeonsik Jeong, Jaeyoun Cho, Sangmo Son, Shukjae Choi
  • Patent number: 10991383
    Abstract: Provided are a method and a device for identifying a sound level of audio content, the method including receiving an audio signal and obtaining a first hash address based on a sound level of the audio signal, providing a hash address database in which the sound level of the audio signal is made to correspond to a hash address among a plurality of hash addresses, based on a first sound level corresponding to the first hash address and the sound level of the audio signal corresponding to the first sound level, cumulatively counting a first count value of the first hash address, and identifying the sound level of the audio content received during a first time period based on count information corresponding to a total amount of the first count value accumulated during the first time period.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inwoo Hwang, Sunmin Kim, Kiwoong Kang, Kibeom Kim, Hoon Heo
  • Patent number: 10972064
    Abstract: An audio reproduction method comprises providing equal loudness response data defining a dependency between sound pressure level and frequency, resulting in sounds of equal loudness, including for sounds of a notional negative loudness; generating a required spectral weighting profile from the response data to represent a difference in frequency response between a first audio transducer and a second, different, audio transducer; applying a spectral weighting to an audio signal in dependence upon the derived frequency response; and reproducing the spectrally weighted audio signal using the second audio transducer at an audio reproduction level.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 6, 2021
    Assignee: SONY CORPORATION
    Inventor: Emmanuel Deruty
  • Patent number: 10966026
    Abstract: Provided are a method and an apparatus for processing audio data in a sound field. The method includes: acquiring the audio data in the sound field; processing the audio data through a preset restoration algorithm to extract audio data information about the sound field carried by the audio data; acquiring motion information about a target, and generating, through a preset processing algorithm, target-based sound field audio data based on the audio data information and the motion information about the target.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: March 30, 2021
    Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD.
    Inventors: Ying Liu, Dongyan Zheng, Yongqiang He
  • Patent number: 10952001
    Abstract: A biasing circuit providing power to a microphone is disclosed. The biasing circuit includes a first impedance element, a second impedance element, a detection circuit and a control circuit. The first impedance element has a first impedance and is coupled between a first power node and a first terminal of the microphone. The second impedance element has a second impedance and is coupled between a second terminal of the microphone and a second power node. The detection circuit is coupled between the first and second terminals and generates a detection signal according to an analog signal generated by the microphone. The control circuit adjusts the first and second impedances according to the detection signal.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: March 16, 2021
    Assignee: Nuvoton Technology Corporation
    Inventor: Pao-Shu Chang
  • Patent number: 10911608
    Abstract: An image processing apparatus includes an image reading portion or an image forming portion, a detection processing portion, and an operation restricting portion. The image reading portion reads an image from a document sheet. The image forming portion forms an image on a sheet. The detection processing portion detects whether or not a speaker that is provided outside the image processing apparatus is in an output state. The operation restricting portion restricts an operation of the image processing apparatus when the detection processing portion detects that the speaker is in the output state.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: February 2, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tetsuya Matsusaka
  • Patent number: 10848901
    Abstract: A sound output apparatus is provided. The sound output apparatus according to an embodiment includes an inputter, an outputter, a storage configured to store mapping information between a volume level and a dynamic range of the sound output apparatus and a processor configured to obtain a dynamic range corresponding to a volume level currently set to the sound output apparatus based on the mapping information, process a sound signal input through the inputter based on the dynamic range and output the processed sound signal through the outputter.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: November 24, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Anant Baijal, Hyeon-sik Jeong, Sang-mo Son, Byeong-seob Ko, Hae-kwang Park
  • Patent number: 10827264
    Abstract: Disclosed herein are system, method, and tangible computer readable medium for creating a desired audio effect for a user. The method includes operations including: causing a plurality of speakers to play test signals, each test signal being specific to one of the speakers; receiving from a remote device recorded frequency responses of the speakers resulting from the playing of the test signals; creating one or more filters to match an audio profile selected by a user; applying the filters to the recorded frequency responses to obtain filtered transformations of the speakers; and transmitting the filtered transformations to the speakers; wherein the filtered transformations are applied at the speakers to thereby achieve the user audio profile.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: November 3, 2020
    Assignee: Roku, Inc.
    Inventors: Gregory Mack Garner, Patrick Alan Brouillette
  • Patent number: 10797666
    Abstract: One embodiment provides a method comprising determining an energy stored in a port of a vented box loudspeaker based on a physical model of the vented box loudspeaker, determining a time-varying attenuation to apply to a source signal for reproduction via the vented box loudspeaker based on the energy stored in the port, and controlling the energy stored in the port in real-time by attenuating the source signal based on the time-varying attenuation. A velocity of air in the port during the reproduction of the source signal is limited based on the controlling.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: October 6, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yuan Li, Pascal M. Brunet
  • Patent number: 10785569
    Abstract: Dynamic loudness equalization of received audio content in a playback system, using metadata that includes instantaneous loudness values for the audio content. A playback level is derived from a user volume setting of the playback system, and is compared with a mixing level that is assigned to the audio content. Parameters are computed, that define an equalization filter that is filtering the audio content before driving a speaker with the filtered audio content, based on the instantaneous loudness values and the comparing of the playback level with the assigned mixing level. Other embodiments are also described and claimed.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 22, 2020
    Assignee: APPLE INC.
    Inventor: Frank Baumgarte
  • Patent number: 10735881
    Abstract: An entertainment system includes an audio transmission device, for example a digital television. configured to provide audio signals over multiple channels. The entertainment system also includes an audio receiving device, for example over-the-ear or wireless headphones, configured to receive signals from the audio transmission device. The audio receiving device includes a sensor. When the sensor is in a first position the audio receiving device receives the signals from the audio transmission device. Correspondingly, when the sensor is in a second position, the audio receiving device does not receive the signals from the audio transmission device.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: August 4, 2020
    Assignee: SONY CORPORATION
    Inventors: David Young, Hyehoon Yi
  • Patent number: 10686420
    Abstract: The audio signal processing apparatus includes a processor configured to adjust an output loudness level of an input content. The processor is configured to obtain a loudness information analyzed from the input content, obtain a loudness gain applied to the input content based on the loudness information and a target loudness level, and adjust the output loudness level of the input content based on the loudness gain. In this case, in a first section among an entire section in which the input content is reproduced, the loudness gain is limited based on a first gain allowable range, and in a second section following the first section, the limitation on the loudness gain is released.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: June 16, 2020
    Assignee: GAUDIO LAB, INC.
    Inventors: Kyutae Park, Jeonghun Seo, Taegyu Lee, Hyunoh Oh, Sangbae Chon
  • Patent number: 10652656
    Abstract: Disclosed is a digital signal processing device including a digital filter unit for performing a filtering process on a signal inputted to the digital signal processing device on the basis of a filter coefficient set by a control device, a maximum allowable amplitude estimation unit for estimating a maximum allowable amplitude value allowable by the digital signal processing device in a system including the digital signal processing device, by using an impulse response of the digital filter unit, and a restart request unit for making a request of the control device for a restart of the digital signal processing device when the amplitude value of a signal to be outputted from the digital signal processing device is equal to or greater than the maximum allowable amplitude value or when the amplitude value exceeds the maximum allowable amplitude value.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: May 12, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Satoshi Umemoto
  • Patent number: 10637426
    Abstract: An audio device includes: a processor configured to perform signal processing on the sound signal according to a value of a parameter; a display; a plurality of operating elements; a controller configured to: change the value of the parameter in accordance with an operation performed through any one of the plurality of operating elements; cause the display to display the value of the parameter; and write the value of the parameter in the current memory; and a detector. The controller is configured to: execute a first routine, which is uninterruptable by another routine, when the detector detects the malfunction; and cause, in the first routine, the display to display a first message without newly storing the value of the parameter; and mute, in the first routine, the processed signal in accordance with an operation performed through any one of the plurality of operating elements.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: April 28, 2020
    Assignee: YAMAHA CORPORATION
    Inventor: Ryoji Tanji
  • Patent number: 10630254
    Abstract: Provided are an information processing device and an information processing method which are capable of obtaining sound volume correction effects more suitable for an auditory sensation. Target data which is a statistical value of metadata of each audio signal of an audio signal group is acquired, metadata of an audio signal to be reproduced is acquired, and either or both of a correction value of a sound volume of the audio signal to be reproduced and a correction value of a sound quality of the audio signal to be reproduced is calculated using the acquired target data and the acquired metadata.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: April 21, 2020
    Assignee: SONY CORPORATION
    Inventor: Yuji Tsuchida
  • Patent number: 10630252
    Abstract: An audio signal processor includes a difference detecting circuit, a gain switching circuit, a differential gain value changing circuit, and a gain control circuit. The difference detecting circuit detects a differential gain value being a first total gain value being a gain value to be switched and a second total gain value being the gain value that has been switched. The gain switching circuit switches the first total gain value to the second total gain value. The differential gain value changing circuit decreases the differential gain value as time passes. The gain control circuit corrects an inputted signal with the differential gain value that decreases as time passes.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: April 21, 2020
    Assignee: Yamaha Corporation
    Inventor: Takuya Sahara
  • Patent number: 10623844
    Abstract: Example techniques may involve headphone interaction. An implementation may include while headphones are disconnected from a control device, the control device receiving an indication of particular audio content being played back by a first zone of the media playback system. While the particular audio content is being played back by the one or more playback devices of the media playback system, detecting that headphones have been connected to the first control device. Headphones may be connectable to the control device via either (a) an analog headphone jack or (b) a point-to-point personal area network connection. In response to detecting that the headphones are connected to the control device: the control device (i) causing the one or more playback devices of the first zone to stop playback of the particular audio content; (ii) retrieving the particular audio content and (iii) resuming playback of the particular audio content via the connected headphones.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 14, 2020
    Assignee: Sonos, Inc.
    Inventors: Eric Clayton, Charles Alessi
  • Patent number: 10606361
    Abstract: An electronic device includes a non-contact detection sensor and a controller that executes processing related to a timer in response to a gesture detected by the non-contact detection sensor.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: March 31, 2020
    Assignee: KYOCERA Corporation
    Inventors: Shigeki Tanabe, Hideki Morita, Isao Masuike, Shinya Saito, Yasushi Kitamura
  • Patent number: 10602230
    Abstract: A device may receive a request associated with adjusting the media output level of a sink device that is configured to output media content. The device may identify a source gain of a source device that is configured to provide the media content to the sink device, and a sink gain of the sink device. The device may identify a sink adjustment value for changing the sink gain based on the request for adjusting the media output level of the sink device, the source gain, and the sink gain. The device may transmit, to the sink device, a control signal to permit the sink gain to be changed based on the sink adjustment value. The media output level of the sink device is based on the source gain and the sink gain.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 24, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Seok Kang, Doo Hyun Kim, Sang Kwon Na, Ki Won Yoo, Chul Woo Lee, Jin Joo Chung, Doo Chan Hwang
  • Patent number: 10583788
    Abstract: A sound system for a vehicle driven by an engine is provide, which includes an audio device for an internal space of a cabin of the vehicle, and a traveling state determiner configured to determine a traveling state of the vehicle. The audio device is configured to change a quality of a sound reproduced by a sound source and, when the traveling state determined by the traveling state determiner is a given traveling state, degrade the quality of the reproduced sound.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: March 10, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Isao Toda, Hironobu Hashiguchi, Koji Wakamatsu
  • Patent number: 10558423
    Abstract: An electronic device for controlling volume is described. The electronic device includes a processor. The electronic device also includes a memory in electronic communication with the processor. The electronic device further includes instructions stored in the memory. The instructions are executable by the processor to determine, from a set of volume settings, a number of volume settings within a threshold. The instructions are also executable by the processor to determine a volume adjustment factor based on the number of volume settings. The instructions are further executable by the processor to adjust each of the number of volume settings based on the volume adjustment factor.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 11, 2020
    Assignee: WirePath Home Systems, LLC
    Inventors: Troy Wright, David Acton
  • Patent number: 10505510
    Abstract: A line output converter (LOC) combined with a microprocessor to sense LOC output signal strength and respond to usefully high levels by generating a trigger to turn on an amplifier that is receiving the LOC output signal. A short, first predetermined time is programmed into the microcontroller as a minimum time to sense high signal levels before activating the amplifier, in order to suppress transient signals. A longer, second predetermined time is programmed into the microcontroller as a minimum time to sense low signal levels before deactivating the amplifier. The predetermined boundary between a high and a low signal level is also programmed into the microcontroller and, as with the predetermined times, is established responsive to the characteristics of the particular LOC involved. In an embodiment, the LOC is a compact adjustable LOC located on the same PCB as the microcontroller.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: December 10, 2019
    Inventors: Larry Vansickel, Wang Hai, Gu Wen Dong
  • Patent number: 10484005
    Abstract: A PDM (pulse density modulation) signal energy detection circuit includes a digital-to-analog converter circuit for receiving a PDM digital input signal and producing an analog output signal based on the PDM digital input signal. The PDM signal energy detection circuit also includes a comparator circuit for receiving the analog output signal from the digital-to-analog converter circuit and producing a pulsed signal when a magnitude of the analog output signal exceeds a pre-set threshold. The PDM signal energy detection circuit also has a counter circuit for receiving the pulsed signal from the comparator circuit and producing an energy detection signal when a number of consecutive pulsed signals exceed a pre-set count.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: November 19, 2019
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Peter Holzmann
  • Patent number: 10470180
    Abstract: A wireless microphone system efficiently combines a pair of antennas so that radio frequency (RF) signals may be transmitted to and from multiple receivers and multiple wireless microphones. The wireless microphone system supports a general radio access technology and may comply with a Digital Enhanced Cordless Telecommunications (DECT) specification. The resource manager combines a received RF component with a first digital component via a first coaxial link to a connected receiver. The receiver also combines a transmitted RF component with a second digital component via a second coaxial link to the resource manager. The first digital component further includes synchronization and data sub-components, which are separated at the receiver.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: November 5, 2019
    Assignee: Shure Acquisition Holdings, Inc.
    Inventors: Mack Mansouri, Myzil Elroy Boyce
  • Patent number: 10469047
    Abstract: The present disclosure provides a radio and method for automatically adjusting, in response to ambient noise, the volume setting of a radio. The radio comprises a microphone for receiving ambient audio and generating a microphone signal; a codec for receiving the microphone signal and generating a processor signal representative of the ambient audio; and processor circuitry operable to receive the processor signal, determine an ambient audio level in response to the processor signal, and determine an adjusted radio volume to generate a radio volume control signal, wherein the adjusted radio volume is determined by calculating a difference between a baseline volume level and ambient audio level and adding a current volume level setting, wherein the codec is also operable to receive the radio volume control signal and generate an output signal to adjust the radio volume setting to maintain a net difference between the adjusted radio volume and ambient audio.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 5, 2019
    Assignee: E.F. JOHNSON COMPANY
    Inventors: Christian K. Barker, Joshua Alan Johnson, Stephen Joseph Borer, Marshall Pommier Schiring
  • Patent number: 10466334
    Abstract: A method and system for locating a sound source are provide. The method may include detecting a sound signal of a sound by each of two audio sensors. The method may also include converting the sound signals detected by the two audio sensors from a time domain to a frequency domain. The method may further include determining a high frequency ratio of each of the sound signals in the frequency domain. The method may further include determining a direction of the sound source based on the high frequency ratios.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: November 5, 2019
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Gang Qiao, Ya Gao
  • Patent number: 10461710
    Abstract: Disclosed herein are embodiments for adjusting playback volume in a media playback system that utilizes a maximum volume feature. In one embodiment, when a playback device receives an instruction to change its playback volume to a requested volume level, the playback device will not necessarily set its playback volume state variable to the requested volume level, but rather will calculate a new (typically lower) alternate volume level based on the maximum volume state variable and instead set its playback volume state variable to that alternate volume level. Moreover, when a playback device shares certain of its state variables among the other devices of the media playback system, the playback device will not necessarily share its actual playback volume state variable, but rather will calculate a new (typically higher) representative volume level and instead share that representative volume level.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: October 29, 2019
    Assignee: Sonos, Inc.
    Inventors: Frank Charlton, Jodi Vautrin, Robert Lambourne, Nathan Fish, Daniel Casimiro, Won So
  • Patent number: 10455355
    Abstract: A method, a system, and a computer program product provide for changing a boundary between zones. This includes setting a location of a boundary which defines a part of a zone; detecting that an object moves into the zone across the boundary; and in response to the detection, changing the location of the boundary in a direction away from the object, compared to the location of the boundary before the change.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: October 22, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tadanobu Inoue, Akira Koseki, Takao Moriyama, Kohji Takano
  • Patent number: 10454266
    Abstract: A method for operating a gate driver circuit includes supplying power to the gate driver circuit from a power supply including a positive power supply voltage and a negative power supply voltage. The method also includes comparing the negative power supply voltage with a first voltage at an output terminal of a transistor, wherein the gate driver circuit is coupled to a gate terminal of the transistor. The method also includes operating the gate driver circuit when the negative power supply voltage is more negative than a trigger voltage, wherein the trigger voltage is a predetermined voltage above the first voltage. The method also includes deactivating at least a portion of the gate driver circuit when the negative power supply voltage is more positive than the trigger voltage.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: October 22, 2019
    Assignee: Infineon Technologies Austria AG
    Inventors: Karl Norling, Erwin Huber
  • Patent number: 10448180
    Abstract: An external audio range indication system, for a vehicle, includes an audio system, a display device, and an electronic control unit. The audio system includes a plurality of speakers. The plurality of speakers is configured to output an audio content. The electronic control unit is operatively connected to the audio system and the display device. The electronic control unit includes a processor and a memory unit coupled to the processor. The memory unit stores logic that, when executed by the processor, causes the electronic control unit to determine an external audio range of the audio content output from the plurality of speakers, the external audio range being a range from the vehicle at which the audio content output from the plurality of speakers is audible by parties external to the vehicle, and control the display device to display the external audio range.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 15, 2019
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Sean L. Helm
  • Patent number: 10448202
    Abstract: A method, a system, and a computer program product provide for changing a boundary between zones. This includes setting a location of a boundary which defines a part of a zone; detecting that an object moves into the zone across the boundary; and in response to the detection, changing the location of the boundary in a direction away from the object, compared to the location of the boundary before the change.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: October 15, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tadanobu Inoue, Akira Koseki, Takao Moriyama, Kohji Takano
  • Patent number: 10439641
    Abstract: Aspects of the disclosure are directed to processing signals including data exhibiting characteristics that facilitate assessment of transmission errors. As may be implemented in accordance with one or more embodiments, parameters are generated based signal transmission characteristics and are indicative of a different types of signal characteristics, including an amount of error correction that has been carried out on the signal. Two or more of the parameters are selected based on properties of signal disturbance under different reception conditions for the signal, and a degree of disturbance in the signal is predicted based on the selected parameters and signal conditions for the respective parameters at which the signal cannot be corrected. An output generated with the signal is then controlled, based on the predicted degree of disturbance and a threshold degree of disturbance.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: October 8, 2019
    Assignee: NXP B.V.
    Inventors: Martin Kessel, Sebastian Bohn, Jörg Andreas Siemes
  • Patent number: 10414337
    Abstract: In at least one embodiment, an apparatus for generating a simulated vehicle sound is provided. At least one parameter module receives a first driver throttle signal and to transmit a first input signal indicative of a first simulated vehicle sound. An engine sound generator block audibly generates a first simulated vehicle sound in response to the first input signal. An engine sound removal block is operably coupled to a microphone that receives a first microphone input signal. The first microphone input signal includes first environmental noise associated with a vehicle exterior environment and the first simulated vehicle sound. The engine sound removal block is configured to filter the first simulated vehicle sound from the first microphone input signal to determine the first environmental noise. The engine sound generator generates a second simulated vehicle sound that is louder than the first environmental noise.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: September 17, 2019
    Assignee: Harman International Industries, Inc.
    Inventors: Richard Kreifeldt, James Kirsch
  • Patent number: 10412479
    Abstract: A headset power management system provides robust and low-power operation by detecting various connection conditions by measuring a voltage at the microphone terminal with and without injection of current from the headset. A power management circuit controls an operating state of the headset using a microphone terminal voltage detector and can determine whether a short circuit is present indicating a connection to a device that does not have a microphone input, a negative polarity voltage is present indicating that the device may be determining a connection and type of the headset using the microphone terminal, a normal connection, or whether the headset is not connected to a device at all. Depending on the connection state, some or all of the headset electronics may be disabled until a normal connection is detected. For example the microphone processing circuits may be disabled if the connection does not support a microphone input.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: September 10, 2019
    Assignee: CIRRUS LOGIC, INC.
    Inventors: Xin Zhao, Bradley A. Lambert, Xiaofan Fei, Eric J. Swanson
  • Patent number: 10405092
    Abstract: Brownout management for an audio amplification system. An audio amplification system includes audio volume control circuitry, audio sample interpolation circuitry, and brownout management circuitry. The brownout management circuitry includes brownout detection circuitry and brownout response circuitry. The brownout detection circuitry is configured to determine whether a voltage of a battery that powers the audio amplification system is below a brownout threshold, and to generate a brownout detection signal that indicates the voltage is below the brownout threshold. The brownout response circuitry is coupled to an audio output of the audio sample interpolation circuitry. The brownout response circuitry is configured to attenuate the audio samples output by the audio sample interpolation circuitry responsive to the brownout detection signal indicating that the voltage is below the brownout threshold.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 3, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Uttam Kumar Agarwal, Prateek Jain, Nageswara Rao, Mukund Navada, Pradeep Chandar Chandramouli
  • Patent number: 10403302
    Abstract: Systems and methods for isolating audio content and biometric authentication include receiving, with an audio receiver, an audio signal spanning a plurality of frequency bands, identifying a speech signal carried by a voice frequency band selected from the plurality of frequency bands, enhancing the speech signal relative to other audio content within the audio signal, and extracting a voice profile key that uniquely identifies the speech signal, wherein enhancing the first speech signal comprises adjusting attack and release times of the speech signal based on sound events within the speech signal, the attack time being associated with very high frequency sounds that are not phase-shifted.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 3, 2019
    Assignee: YOBE, INC.
    Inventors: James Christopher Fairey, Kenneth Sutton
  • Patent number: 10354692
    Abstract: Techniques of playing back a looping video file involve providing multiple video codecs for decoding a video file. Each video codec performs its own decoding operation on the looping video file, resulting in multiple buffers of video frames and a buffer of audio frames. Then, as the GPU renders the ending video frames from a first buffer, it begins rendering the beginning video frames from a second buffer. In this way, the beginning of a next video cycle is already rendered for viewing by the time a current video cycle is ending.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 16, 2019
    Assignee: Twitter, Inc.
    Inventors: Zhong Sheng Wang, Ryan Matthew Gordon
  • Patent number: 10347093
    Abstract: A system includes a processor, an audio display, and a haptic peripheral including a haptic output device. The audio display includes a speaker and a headphone connector. The haptic output device is configured to receive a control signal from the processor and output a haptic effect to the haptic peripheral in response to the control signal from the processor. The processor is configured to vary the control signal for the haptic output device depending on an audio output accessory connectivity status of the audio display such that the haptic output device generates and applies a first haptic effect if the audio display is connected to an audio output accessory in order to output audio through the headphone connector and the haptic output device generates and applies a second haptic effect if the audio display is not connected to an audio output accessory in order to output audio through the speaker.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: July 9, 2019
    Assignee: IMMERSION CORPORATION
    Inventors: William Rihn, David Birnbaum
  • Patent number: 10339910
    Abstract: A system for cancelling objectionable wind noise in a vehicle cabin includes a wind noise identification module that is configured to receive data from a microphone indicating a noise measured in a cabin of a vehicle and determine whether the noise is objectionable wind noise based on (i) a position of a moveable panel configured to cover an opening in a body of the vehicle and (ii) at least one of an amplitude of the noise and a frequency of the noise. The system also includes a first noise cancellation module that is configured to generate a noise cancellation waveform to mitigate the noise based on at least one of the amplitude of the noise and the frequency of the noise when the noise is objectionable wind noise.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 2, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C. Valeri, Scott M. Reilly
  • Patent number: 10306378
    Abstract: A method for operating a hearing device, in particular a hearing aid device, in which a first analog signal is provided. A second analog signal is generated by a preamplifier based on the first analog signal, and a first digital signal is generated by an A/D converter based on the second analog signal. A second digital signal is generated by an amplifier based on the first digital signal, and a third digital signal, in which a noise is reduced in comparison with the second digital signal, is generated by a noise suppression unit based on a second digital signal. The preamplifier, amplifier, and noise suppression unit are set using a value characterizing the first digital signal.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 28, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Stefan Petrausch, Thomas Pilgrim
  • Patent number: 10298192
    Abstract: A recorded signal representing a recorded sound generated by a sound generation source is reproduced. A type of a sound generation source of a performance sound represented by a performance signal is specified. A sound volume of the recorded signal is reduced in a case where the sound generation source of the recorded signal corresponds to the specified type of the sound generation source.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 21, 2019
    Assignee: Yamaha Corporation
    Inventor: Keita Arimoto