Patents by Inventor John Lawrence McGrael

John Lawrence McGrael 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).

  • Stereo paired speaker system with center extraction
    Patent number: 10952005
    Abstract: Various implementations include speaker systems. In some particular cases, a speaker system includes: at least two distinct loudspeakers each capable of outputting stereo audio on its own, wherein each loudspeaker comprises: a plurality of transducers, and a controller coupled with the plurality of transducers, where the controller in each loudspeaker is configured to: receive a left channel audio input signal and a right channel audio input signal; extract a center channel signal from the left channel audio input signal and the right channel audio input signal; and provide an audio output signal to at least one of the plurality of transducers for outputting the center channel signal.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 16, 2021
    Assignee: Bose Corporation
    Inventors: John Lawrence McGrael, Benjamin Jackson Clark, David Lester Smith, Michael Wayne Stark, James Walter Tracey, Nabin Sagar Sharma
  • Loudspeaker with deflector at a port exit
    Patent number: 10405084
    Abstract: A loudspeaker comprising an acoustic package including an acoustic enclosure that defines an acoustic cavity, a loudspeaker component supported on the acoustic enclosure, a port arranged in the acoustic package and extending from a first open end portion acoustically coupled to the acoustic cavity, to a second end portion acoustically coupled to a region external to the acoustic cavity, the second end portion being arranged for directing air flow exiting the port generally towards the loudspeaker component, and a deflector located between the second end portion of the port and the loudspeaker component, the deflector being arranged for at least partially diverting air flow exiting the port away from the loudspeaker component, towards the region external to the acoustic cavity.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 3, 2019
    Assignee: Bose Corporation
    Inventors: Donna Marie Sullivan, John Lawrence McGrael, Christopher Glenn Donaldson
  • LOUDSPEAKER WITH DEFLECTOR AT A PORT EXIT
    Publication number: 20190069077
    Abstract: A loudspeaker comprising an acoustic package including an acoustic enclosure that defines an acoustic cavity, a loudspeaker component supported on the acoustic enclosure, a port arranged in the acoustic package and extending from a first open end portion acoustically coupled to the acoustic cavity, to a second end portion acoustically coupled to a region external to the acoustic cavity, the second end portion being arranged for directing air flow exiting the port generally towards the loudspeaker component, and a deflector located between the second end portion of the port and the loudspeaker component, the deflector being arranged for at least partially diverting air flow exiting the port away from the loudspeaker component, towards the region external to the acoustic cavity.
    Type: Application
    Filed: August 30, 2017
    Publication date: February 28, 2019
    Applicant: Bose Corporation
    Inventors: Donna Marie Sullivan, John Lawrence McGrael, Christopher Glenn Donaldson