Patents by Inventor Hilmar Lehnert

Hilmar Lehnert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11356764
    Abstract: Embodiments disclosed herein include a headphone device which operates in various modes applying different gesture profiles based on various operational, playback, or environmental conditions. An example headphone device includes a first earbud and a second earbud communicatively coupled to each other. One or both of the earbuds include a touch-sensitive interface and a processor. The earbuds are configured to interpret a first set of gestures to the touch-sensitive interface as respective commands while operating in a first mode. Upon detecting a change in an operational condition, one or both earbuds transition to a second mode where the earbuds are configured to interpret a second set of gestures to the touch-sensitive interface as respective commands, different from the respective commands correlating to the first set of gestures to the touch-sensitive interface.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: June 7, 2022
    Assignee: Sonos, Inc.
    Inventor: Hilmar Lehnert
  • Publication number: 20220132246
    Abstract: Systems and methods for authenticating a passive speaker include (i) activating, by a playback device configured to drive the passive speaker, a passive speaker identification circuit of the passive speaker by providing an identification signal to an input terminal of the passive speaker, wherein the passive speaker is a particular type of passive speaker having particular acoustic characteristics; (ii) while the passive speaker identification circuit is active, measuring, by the playback device, an electrical current of the identification signal; (iii) determining, based on the measured electrical current of the identification signal, an impedance modulation of the passive speaker; (iv) determining, by the playback device, the particular type of the passive speaker based on the impedance modulation of the passive speaker; and (v) applying, by the playback device, a calibration to the playback device based on the determined particular type of the passive speaker.
    Type: Application
    Filed: August 28, 2019
    Publication date: April 28, 2022
    Inventors: Nick D'Amato, IV, Benjamin Rappoport, Dayn Wilberding, Timothy Sheen, Andrea Testa, Nash Reilly, Hilmar Lehnert
  • Publication number: 20220124434
    Abstract: Systems and methods for providing augmented arrays for audio playback are disclosed. An example playback device includes a first transducer configured to output audio along a first acoustic axis and a second transducer configured to output audio along a second acoustic axis. The playback device is configured to receive a source stream of audio content including at least a first input channel and a second input channel. The device plays back first audio output via the first transducer based on the first input channel and directed along the first acoustic axis, and plays back second audio output via the second transducer based on the second input channel and directed along the second acoustic axis, wherein the second audio output at least partially cancels the first audio output along a first spatial region offset from the first acoustic axis.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 21, 2022
    Inventors: Hilmar Lehnert, Chris Davies, Paul MacLean
  • Publication number: 20220059104
    Abstract: Multichannel audio playback devices and associated systems and methods are disclosed herein. In some examples, a first playback device is configured to receive a source stream of audio content comprising left, right and center input channels. In a first mode, the first playback device is configured to play back audio via a plurality of transducers based on the left, right, and center input channels. In a second mode, in which the first playback device is bonded to second and third playback devices, the first playback device is configured to (i) play back audio via the plurality of transducers based on at least the center input channel, (ii) cause audio to be played via the second playback device based on at least the right input channel, and (iii) cause audio to be played via the third playback device based on at least the left input channel.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 24, 2022
    Inventors: Richard Jackson, Hilmar Lehnert, Chris Davies, Paul MacLean, Roberto Maria Dizon
  • Patent number: 11206484
    Abstract: Systems and methods for authenticating a passive speaker include (i) activating, by a playback device configured to drive the passive speaker, a passive speaker identification circuit of the passive speaker by providing an identification signal to an input terminal of the passive speaker, wherein the passive speaker is a particular type of passive speaker having particular characteristics; (ii) while the passive speaker identification circuit is active, measuring, by the playback device, an electrical current of the identification signal; (iii) determining, based on the measured electrical current of the identification signal, an impedance modulation of the passive speaker; (iv) determining, by the playback device, the particular type of the passive speaker based on the impedance modulation of the passive speaker; and (v) applying, by the playback device, a calibration to the playback device based on the determined particular type of the passive speaker.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: December 21, 2021
    Assignee: Sonos, Inc.
    Inventors: Nick D'Amato, Benjamin Rappoport, Dayn Wilberding, Timothy Sheen, Andrea Testa, Nash Reilly, Hilmar Lehnert
  • Publication number: 20210306781
    Abstract: To avoid damage from overheating, playback device operation can be modulated based on input from temperature sensors. An example method includes obtaining, via one or more temperature sensors carried by the playback device, temperature data. Based on the temperature data, a first temperature parameter is detected. In response to detecting the first temperature parameter, a gain of audio playback is decreased by a first amount. After decreasing the gain of audio playback by the first amount, a second temperature parameter is detected. In response to detecting the second temperature parameter, the gain of audio playback is decreased by a second amount different than the first amount.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 30, 2021
    Inventors: Hilmar Lehnert, Aurelio Ramos
  • Publication number: 20210281943
    Abstract: Embodiments disclosed herein include a headphone device which operates in various modes applying different gesture profiles based on various operational, playback, or environmental conditions. An example headphone device includes a first earbud and a second earbud communicatively coupled to each other. One or both of the earbuds include a touch-sensitive interface and a processor. The earbuds are configured to interpret a first set of gestures to the touch-sensitive interface as respective commands while operating in a first mode. Upon detecting a change in an operational condition, one or both earbuds transition to a second mode where the earbuds are configured to interpret a second set of gestures to the touch-sensitive interface as respective commands, different from the respective commands correlating to the first set of gestures to the touch-sensitive interface.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Inventor: Hilmar Lehnert
  • Publication number: 20210120362
    Abstract: Systems and methods for adjusting bass levels of a multi-channel audio signal include, among other features, (i) receiving the multi-channel signal via a playback device; (ii) separating, from the multi-channel signal, low-frequency signals comprising frequencies less than a threshold frequency; (iii) determining electrical energies of the low-frequency signals; (iv) determining a first energy by summing the electrical energies of the low-frequency signals; (v) consolidating the low-frequency signals into a consolidated low-frequency signal; (vi) determining a second energy by determining an electrical energy of the consolidated low-frequency signal; (vii) generating a gain-adjusted low-frequency signal by adjusting a gain of the consolidated low-frequency signal based on both (a) the first energy and (b) the second energy; (viii) generating a gain-adjusted multi-channel signal by mixing the gain-adjusted low-frequency signal back into the multi-channel signal; and (ix) using the gain-adjusted multi-channel s
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Hilmar Lehnert, Aurelio Ramos, Bob Dizon
  • Publication number: 20210092518
    Abstract: Example techniques relate to audio generation in a media playback system. Based on one or more first functions and first characteristics of an area, the system may generate first audio that includes a first audio signal and a second audio signal. The system provides the first audio signal to at least one first audio driver and the second audio signal to at least one second audio driver, thereby causing a first playback device and a second playback device to play back the first audio synchronously. The system receives second characteristics of the area and based on one or more second functions and the second characteristics, generates second audio comprising a third audio signal and a fourth audio signal. The system provides the third audio signal to the at least one first audio driver and the fourth audio signal to the at least one second audio driver.
    Type: Application
    Filed: December 7, 2020
    Publication date: March 25, 2021
    Inventors: Mike Chamness, Aurelio Rafael Ramos, Timothy Sheen, Hilmar Lehnert
  • Publication number: 20210067892
    Abstract: In some embodiments, a method comprises receiving audio content comprising left input channel signals and right input channel signals, and generating first and second input signals from the left and right input channel signals. The first input signal is based on a sum of the left and right input channel signals, and the second input signal is based on a difference of the left and right input channel signals. An array transfer function is applied to the first and second input signals to produced audio output signals, which can be provided to a plurality of audio transducers on one or more playback devices.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 4, 2021
    Inventors: Hilmar Lehnert, Paul MacLean
  • Publication number: 20210037306
    Abstract: Examples described herein relate to a charging system for wireless earbuds involving charging adapters that are attachable to the wireless earbuds. In some implementations, the charging adapter is attachable to an external surface of an earbud using a magnetic or mechanical interface that align electrodes of the charging adapter with electrodes on the wireless headset, allowing an internal battery of the earbud to draw current and charge from the charging adapter while the earbud is in-ear. Then, when the internal battery is and recharged using a charging case or wall charger, the charging adapter can be detached from the earbud.
    Type: Application
    Filed: June 29, 2020
    Publication date: February 4, 2021
    Inventor: Hilmar Lehnert
  • Patent number: 10880671
    Abstract: Systems and methods for adjusting bass levels of a multi-channel audio signal include, among other features, (i) receiving the multi-channel signal via a playback device; (ii) separating, from the multi-channel signal, low-frequency signals comprising frequencies less than a threshold frequency; (iii) determining electrical energies of the low-frequency signals; (iv) determining a first energy by summing the electrical energies of the low-frequency signals; (v) consolidating the low-frequency signals into a consolidated low-frequency signal; (vi) determining a second energy by determining an electrical energy of the consolidated low-frequency signal; (vii) generating a gain-adjusted low-frequency signal by adjusting a gain of the consolidated low-frequency signal based on both (a) the first energy and (b) the second energy; (viii) generating a gain-adjusted multi-channel signal by mixing the gain-adjusted low-frequency signal back into the multi-channel signal; and (ix) using the gain-adjusted multi-channel s
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: December 29, 2020
    Assignee: Sonos, Inc.
    Inventors: Hilmar Lehnert, Aurelio Ramos, Bob Dizon
  • Patent number: 10863273
    Abstract: An example method is performed by a media playback system comprising a plurality of audio drivers configured to output audio content according to a first radiation pattern that produces an inherent directional effect. Based on data representing positions of one or more listeners in a listening area, the system determines first and second transfer functions corresponding to the first and second audio drivers, respectively. One or both of the transfer functions configure the first and second audio drivers to output audio content according to a second radiation pattern that produces a modified directional effect relative to the first radiation pattern. The system applies the transfer function to audio content thereby causing the first and second audio drivers to play back audio content according to the second radiation pattern.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: December 8, 2020
    Assignee: Sonos, Inc.
    Inventors: Mike Chamness, Aurelio Rafael Ramos, Timothy Sheen, Hilmar Lehnert
  • Publication number: 20200351602
    Abstract: A multi-channel and multi-zone audio environment is provided. Various inventions are disclosed that allow playback devices on one or more networks to provide an effective multi-channel and a multi-zone audio environment using timing information. According to one example, timing information is used to coordinate playback devices connected over a low-latency network to provide audio along with a video display. In another example, timing information is used to coordinate playback devices connected over a mesh network to provide audio in one or more zones or zone groups.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Simon Jarvis, Hilmar Lehnert, Aurelio Rafael Ramos, Luis Vega
  • Patent number: 10721575
    Abstract: A multi-channel and multi-zone audio environment is provided. Various inventions are disclosed that allow playback devices on one or more networks to provide an effective multi-channel and a multi-zone audio environment using timing information. According to one example, timing information is used to coordinate playback devices connected over a low-latency network to provide audio along with a video display. In another example, timing information is used to coordinate playback devices connected over a mesh network to provide audio in one or more zones or zone groups.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: July 21, 2020
    Assignee: Sonos, Inc.
    Inventors: Simon Jarvis, Hilmar Lehnert, Aurelio Rafael Ramos, Luis Vega
  • Patent number: 10671042
    Abstract: Systems, methods, apparatus, and articles of manufacture to learn and share remote commands are disclosed. An example method to configure a playback device to be controlled by a remote control includes receiving by the playback device a first code for a first command from the remote control. The example method includes identifying by the playback device a second code for a second command based on the received first code. The example method includes receiving by the playback device the second code from the remote control. The example method includes executing the second command by the playback device.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 2, 2020
    Assignee: Sonos, Inc.
    Inventors: Neil Griffiths, Simon Jarvis, Hilmar Lehnert, Aurelio Ramos
  • Publication number: 20200110380
    Abstract: Systems, methods, apparatus, and articles of manufacture to learn and share remote commands are disclosed. An example method to configure a playback device to be controlled by a remote control includes receiving by the playback device a first code for a first command from the remote control. The example method includes identifying by the playback device a second code for a second command based on the received first code. The example method includes receiving by the playback device the second code from the remote control. The example method includes executing the second command by the playback device.
    Type: Application
    Filed: August 20, 2019
    Publication date: April 9, 2020
    Inventors: Neil Griffiths, Simon Jarvis, Hilmar Lehnert, Aurelio Ramos
  • Patent number: D906284
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: December 29, 2020
    Assignee: Sonos, Inc.
    Inventors: Mieko Kusano, Wai-Loong Lim, Hilmar Lehnert, Ong Kok Aun, Koh Eng Giap
  • Patent number: D921611
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 8, 2021
    Assignee: Sonos, Inc.
    Inventors: Roland Bird, Roger Swales, Niels van Hoof, Lukasz Natkaniec, Mieko Kusano, Stefan Reichert, Dana Krieger, Tadeo T. Toulis, Mike Chamness, Hilmar Lehnert, Wilfred Wei, Wei Hean Liew
  • Patent number: D934199
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: October 26, 2021
    Assignee: Sonos, Inc.
    Inventors: Stefan Reichert, Mieko Kusano, Roland Bird, Roger Swales, Niels van Hoof, Lukasz Natkaniec, Dana Krieger, Tadeo T. Toulis, Mike Chamness, Hilmar Lehnert, Wilfred Wei, Wei Hean Liew