Patents by Inventor Geoffrey Christopherson

Geoffrey Christopherson 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: 9560460
    Abstract: Systems and methods for calibrating a loudspeaker with a connection to a microphone located at a listening area in a room. The loudspeaker includes self-calibration functions to adjust speaker characteristics according to effects generated by operating the loudspeaker in the room. In one example, the microphone picks up a test signal generated by the loudspeaker and the loudspeaker uses the test signal to determine the loudspeaker frequency response. The frequency response is analyzed below a selected low frequency value for a room mode. The loudspeaker generates parameters for a digital filter to compensate for the room modes. In another example, the loudspeaker may be networked with other speakers to perform calibration functions on all of the loudspeakers in the network.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: January 31, 2017
    Assignee: Harman International Industries, Incorporated
    Inventors: Peter Chaikin, Geoffrey Christopherson, Brian Ellison, John Lee, Miguel Paganini, C. Rex Reed, Timothy Shuttleworth, Gregory Wright
  • Publication number: 20140161265
    Abstract: Systems and methods for calibrating a loudspeaker with a connection to a microphone located at a listening area in a room. The loudspeaker includes self-calibration functions to adjust speaker characteristics according to effects generated by operating the loudspeaker in the room. In one example, the microphone picks up a test signal generated by the loudspeaker and the loudspeaker uses the test signal to determine the loudspeaker frequency response. The frequency response is analyzed below a selected low frequency value for a room mode. The loudspeaker generates parameters for a digital filter to compensate for the room modes. In another example, the loudspeaker may be networked with other speakers to perform calibration functions on all of the loudspeakers in the network.
    Type: Application
    Filed: November 4, 2013
    Publication date: June 12, 2014
    Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventors: Peter Chaikin, Geoffrey Christopherson, Brian Ellison, John Lee, Miguel Paganini, C. Rex Reed, Timothy Shuttleworth, Gregory Wright
  • Patent number: 8577048
    Abstract: Systems and methods for calibrating a loudspeaker with a connection to a microphone located at a listening area in a room. The loudspeaker includes self-calibration functions to adjust speaker characteristics according to effects generated by operating the loudspeaker in the room. In one example, the microphone picks up a test signal generated by the loudspeaker and the loudspeaker uses the test signal to determine the loudspeaker frequency response. The frequency response is analyzed below a selected low frequency value for a room mode. The loudspeaker generates parameters for a digital filter to compensate for the room modes. In another example, the loudspeaker may be networked with other speakers to perform calibration functions on all of the loudspeakers in the network.
    Type: Grant
    Filed: September 2, 2006
    Date of Patent: November 5, 2013
    Assignee: Harman International Industries, Incorporated
    Inventors: Peter Chaikin, Geoffrey Christopherson, Brian Ellison, John Lee, Miguel Paganini, C. Rex Reed, Timothy Shuttleworth, Gregory Wright
  • Publication number: 20100272270
    Abstract: Systems and methods for calibrating a loudspeaker with a connection to a microphone located at a listening area in a room. The loudspeaker includes self-calibration functions to adjust speaker characteristics according to effects generated by operating the loudspeaker in the room. In one example, the microphone picks up a test signal generated by the loudspeaker and the loudspeaker uses the test signal to determine the loudspeaker frequency response. The frequency response is analyzed below a selected low frequency value for a room mode. The loudspeaker generates parameters for a digital filter to compensate for the room modes. In another example, the loudspeaker may be networked with other speakers to perform calibration functions on all of the loudspeakers in the network.
    Type: Application
    Filed: September 2, 2006
    Publication date: October 28, 2010
    Applicant: Harman International Industries, Incorporated
    Inventors: Peter Chaikin, Geoffrey Christopherson, Brian Ellison, John Lee, Miguel Paganini, C. Rex Reed, Timothy Shuttleworth, Gregory Wright
  • Patent number: D682255
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: May 14, 2013
    Assignee: Harman International Industries, Incorporated
    Inventors: Myk Wayne Lum, Geoffrey Christopherson, Yoshiyuki Takeuchi, Paul Bauman
  • Patent number: D687814
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: August 13, 2013
    Assignee: Harman International Industries, Incorporated
    Inventors: Myk Wayne Lum, Geoffrey Christopherson, Yoshiyuki Takeuchi, Paul Bauman
  • Patent number: D689042
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: September 3, 2013
    Assignee: Harman International Industries, Incorporated
    Inventors: Myk Wayne Lum, Geoffrey Christopherson, Yoshiyuki Takeuchi, Paul Bauman