Patents by Inventor Eric Sorensen

Eric Sorensen 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).

  • Publication number: 20200348901
    Abstract: Many headsets include automatic noise cancellation (ANC) which dramatically reduces perceived background noise and improves user listening experience. Unfortunately, the voice microphones in these devices often capture ambient noise that the headsets output during phone calls or other communication sessions to other users. In response, many headsets and communication devices provide manual muting circuitry, but users frequently forget to turn the muting on and/or off creating further problems as they communicate. To address this, the present inventors devised, among other things, an exemplary headset that detects the absence or presence of user speech, automatically muting and unmuting the voice microphone without user intervention. Some embodiments leverage relationships between feedback and feedforward signals in ANC circuitry to detect user speech, avoiding the addition of extra hardware to the headset.
    Type: Application
    Filed: December 30, 2019
    Publication date: November 5, 2020
    Inventors: Jiajin AN, Michael Jon WURTZ, David WURTZ, Manpreet KHAIRA, Amit KUMAR, Shawn O'CONNOR, Shankar RATHOUD, James SCANLAN, Eric SORENSEN
  • Patent number: 10802463
    Abstract: A method of printing a tag and attaching the tag to a bag for printing, severing and feeding non-curled tags to sewing machines. The method of printing a tag and attaching the tag to a bag comprising providing a control unit, a bag conveyor, a bag switch, a printer unit, a chute, a chute sensor, and a feeder assembly; printing and severing a tag in the printer unit; dispensing the tag into the chute to prevent the tag from curling and jamming; and feeding the tag to a sewing machine whereupon the tag is attached to a bag.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: October 13, 2020
    Assignee: CMSI Technologies
    Inventors: Robert Herfindahl, Matthew Benner, Eric Sorensen, Lamar Sorensen
  • Publication number: 20200137478
    Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 30, 2020
    Inventors: Amit Kumar, Shankar Rathoud, Michael Jon Wurtz, Eric Etheridge, Eric Sorensen
  • Publication number: 20200105239
    Abstract: A system including an automatic noise canceling (ANC) headphone and a processor. The ANC headphone has a microphone configured to generate a microphone signal and at least two non-zero ANC gain levels. The processor is configured to receive the microphone signal, determine a characteristic of the microphone signal, and identify a revised ANC level from the ANC gain levels based on a comparison of the characteristic to at least one threshold. Methods are also disclosed.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 2, 2020
    Inventors: Amit Kumar, Eric Sorensen
  • Patent number: 10564925
    Abstract: Many headsets include automatic noise cancellation (ANC) which dramatically reduces perceived background noise and improves user listening experience. Unfortunately, the voice microphones in these devices often capture ambient noise that the headsets output during phone calls or other communication sessions to other users. In response, many headsets and communication devices provide manual muting circuitry, but users frequently forget to turn the muting on and/or off, creating further problems as they communicate. To address this, the present inventors devised, among other things, an exemplary headset that detects the absence or presence of user speech, automatically muting and unmuting the voice microphone without user intervention. Some embodiments leverage relationships between feedback and feedforward signals in ANC circuitry to detect user speech, avoiding the addition of extra hardware to the headset.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: February 18, 2020
    Inventors: Jiajin An, Michael Jon Wurtz, David Wurtz, Manpreet Khaira, Amit Kumar, Shawn O'Connor, Shankar Rathoud, James Scanlan, Eric Sorensen
  • Patent number: 10540954
    Abstract: A fixture for calibrating an active noise canceling (ANC) earphone, the calibration fixture including an ear model and an acoustic path. The ear model is configured to support an ANC earphone and includes an ear canal extending from an outer end of the ear canal to an inner end of the ear canal. The acoustic path is external to the ear canal and extends from, at a first end of the acoustic path, the inner end of the ear canal of the ear model to an opposite, second end of the acoustic path. The acoustic path is configured to transmit a mechanical sound wave received from the inner end of the ear canal to a region external to the ear model and adjacent the outer end of the ear canal.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: January 21, 2020
    Assignee: Avnera Corporation
    Inventors: Amit Kumar, Thomas Irrgang, Shankar Rathoud, Eric Sorensen
  • Patent number: 10448140
    Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: October 15, 2019
    Assignee: Avnera Corporation
    Inventors: Amit Kumar, Shankar Rathoud, Mike Wurtz, Eric Etheridge, Eric Sorensen
  • Patent number: 10353088
    Abstract: Neutron multiplicity detector control logic and firmware may control a neutron multiplicity detector such that higher count rates can be achieved by an order of magnitude of more over conventional control logic and firmware. Count rates of over 1,000,000 cps, and even over 1,500,000 cps, have been realized in some implementations.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 16, 2019
    Assignees: Triad National Security, LLC, Natl. Tech. & Engineering Solutions of Sandia, LLC, Lawrence Livermore National Security, LLC
    Inventors: Mark Nelson, Eric Sorensen, Brian Rooney, Richard Rothrock, Matthew Newell, Samuel Salazar, Christopher Romero, David Jones, Sean Walston, Scott Kiff
  • Publication number: 20190182578
    Abstract: A headphone having a speaker, a feedforward microphone, a feedback microphone, and an OED processor. The speaker is configured to transmit an audio playback signal based on a headphone audio signal. The feedforward microphone is configured to sense an ambient noise signal and transmit a feedforward microphone signal based at least in part on the ambient noise signal. The feedback microphone is configured to sense a total audio signal and transmit a feedback microphone signal based at least in part on the total audio signal, in which the total audio signal is the sum of the audio playback signal and at least a portion of the ambient noise level. The OED processor is configured to determine whether the headphone is off ear or on ear, based at least in part on the headphone audio signal, the feedforward microphone signal, and the feedback microphone signal.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 13, 2019
    Inventors: Amit Kumar, Eric Sorensen, Shankar Rathoud
  • Publication number: 20190174218
    Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
    Type: Application
    Filed: October 29, 2018
    Publication date: June 6, 2019
    Inventors: Amit Kumar, Shankar Rathoud, Mike Wurtz, Eric Etheridge, Eric Sorensen
  • Publication number: 20190174006
    Abstract: A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.
    Type: Application
    Filed: October 29, 2018
    Publication date: June 6, 2019
    Inventors: Eric Sorensen, Thomas Irrgang, Mike Wurtz
  • Patent number: 10231047
    Abstract: A headphone detector including a headphone and a processor. The headphone has a microphone and a speaker, and the microphone is configured to generate an audio signal based on an output of the speaker. The processor is configured to receive the audio signal, determine a characteristic of the audio signal, and assess whether the headphone is on ear or off ear based on a comparison of the characteristic to a threshold. The threshold corresponds to one or more of an audio response of the audio signal at a corresponding frequency and an audio response of a feedback microphone signal at a corresponding frequency, under one or more known conditions.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: March 12, 2019
    Assignee: Avnera Corporation
    Inventors: Amit Kumar, Eric Sorensen, Shankar Rathoud
  • Patent number: 10200776
    Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 5, 2019
    Assignee: AVNERA CORPORATION
    Inventors: Amit Kumar, Shankar Rathoud, Mike Wurtz, Eric Etheridge, Eric Sorensen
  • Patent number: 10198239
    Abstract: A speaker system includes a case, an audio input, speakers, an accelerometer, and a computer processor. The audio input is structured to receive a program audio signal from an audio device. The speakers are configured to play an audio output based on the program audio signal, the audio output causing a vibration of the case. The accelerometer is configured to detect the vibration of the case as well as a user tap on the case. The computer processor is configured to identify a user gesture that includes the tap on the case, to identify the tap apart from the case vibration by processing the detected vibration of the case and the detected user tap on the case based on information from the program audio signal to separate the detected user tap from the detected vibration, and to commence a particular function associated with the user gesture.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 5, 2019
    Assignee: Avnera Corporation
    Inventors: Manpreet S. Khaira, Shawn O'Connor, Frank Prestrelski, Patrick Allen Quinn, Richard Andrew Sorensen, Eric Sorensen
  • Publication number: 20190019491
    Abstract: A fixture for calibrating an active noise canceling (ANC) earphone, the calibration fixture including an ear model and an acoustic path. The ear model is configured to support an ANC earphone and includes an ear canal extending from an outer end of the ear canal to an inner end of the ear canal. The acoustic path is external to the ear canal and extends from, at a first end of the acoustic path, the inner end of the ear canal of the ear model to an opposite, second end of the acoustic path. The acoustic path is configured to transmit a mechanical sound wave received from the inner end of the ear canal to a region external to the ear model and adjacent the outer end of the ear canal.
    Type: Application
    Filed: August 10, 2018
    Publication date: January 17, 2019
    Inventors: Amit Kumar, Thomas Irrgang, Shankar Rathoud, Eric Sorensen
  • Patent number: 10182160
    Abstract: A portable speakerphone having a housing, a receiving transducer, an electrical cable, a transmitting transducer, and a processor. The receiving transducer is affixed to the housing and is configured to receive a first electrical signal from a mobile device. The electrical cable is coupled to and extends from the housing. The transmitting transducer is affixed to the electrical cable, remote from the housing. Also, the transmitting transducer is configured to transmit a second electrical signal, and the second electrical signal is based in part on the first electrical signal. The processor is configured to suppress acoustic echo by modifying the second electrical signal. The processor is also configured to output the modified second electrical signal to the mobile device. A related method is also disclosed.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: January 15, 2019
    Assignee: Avnera Corporation
    Inventors: Eric Sorensen, Thomas Irrgang, Mike Wurtz
  • Publication number: 20190012135
    Abstract: An apparatus can include an audio playback device configured to provide an audio output to a user, and a controller configured to: receive an initial playback position within the audio output; determine that an off-ear event has occurred; identify a time corresponding to the off-ear event; instruct the audio playback device to pause the audio output at the identified time; and calculate a new playback position within the audio output based at least in part on the identified time.
    Type: Application
    Filed: June 25, 2018
    Publication date: January 10, 2019
    Inventors: Shawn O'Connor, Eric Sorensen, Manpreet S. Khaira, Sydney Newton
  • Publication number: 20180350340
    Abstract: A system including an automatic noise canceling (ANC) headphone and a processor. The ANC headphone has a microphone configured to generate a microphone signal and at least two non-zero ANC gain levels. The processor is configured to receive the microphone signal, determine a characteristic of the microphone signal, and identify a revised ANC level from the ANC gain levels based on a comparison of the characteristic to at least one threshold. Methods are also disclosed.
    Type: Application
    Filed: August 14, 2018
    Publication date: December 6, 2018
    Inventors: Amit Kumar, Eric Sorensen
  • Publication number: 20180270564
    Abstract: Disclosed is a signal processor for headphone off-ear detection. The signal processor includes an audio output to transmit an audio signal toward a headphone speaker in a headphone cup. The signal processor also includes a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup. The signal processor also includes an off-ear detection (OED) signal processor to determine an audio frequency response of the FB signal over an OED frame as a received frequency response. The OED processor also determines an audio frequency response of the audio signal times an off-ear transfer function between the headphone speaker and the FB microphone as an ideal off-ear response. A difference metric si generated comparing the received frequency response to the ideal off-ear frequency response. The difference metric is employed to detect when the headphone cup is disengaged from an ear.
    Type: Application
    Filed: May 18, 2018
    Publication date: September 20, 2018
    Inventors: Amit Kumar, Shankar Rathoud, Mike Wurtz, Eric Etheridge, Eric Sorensen
  • Patent number: 10049653
    Abstract: A system including an automatic noise canceling (ANC) headphone and a processor. The ANC headphone has a microphone configured to generate a microphone signal and at least two non-zero ANC gain levels. The processor is configured to receive the microphone signal, determine a characteristic of the microphone signal, identify a revised ANC level from the ANC gain levels based on a comparison of the characteristic to at least one threshold, and output a signal corresponding to the revised ANC level. Methods are also disclosed.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: August 14, 2018
    Assignee: AVNERA CORPORATION
    Inventors: Amit Kumar, Eric Sorensen