Patents by Inventor Theis Harboe Christiansen

Theis Harboe Christiansen 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).

  • Method of identifying passive radiator parameters
    Patent number: 9661430
    Abstract: Methods for modeling a loudspeaker having a passive radiator include applying a stimulus signal to a speaker within the cabinet, wherein the stimulus is applied over a frequency range. The sound pressure level (SPL) in the cabinet is measured as a function of frequency during application of the stimulus signal. At least one coefficient based on the measured SPL is derived, wherein at least one passive radiator parameter is a function of the at least one coefficient.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: May 23, 2017
    Assignee: Texas Instruments Incorporated
    Inventors: Lars Risbo, Theis Harboe Christiansen
  • METHOD OF IDENTIFYING PASSIVE RADIATOR PARAMETERS
    Publication number: 20160037276
    Abstract: Methods for modeling a loudspeaker having a passive radiator include applying a stimulus signal to a speaker within the cabinet, wherein the stimulus is applied over a frequency range. The sound pressure level (SPL) in the cabinet is measured as a function of frequency during application of the stimulus signal. At least one coefficient based on the measured SPL is derived, wherein at least one passive radiator parameter is a function of the at least one coefficient.
    Type: Application
    Filed: July 27, 2015
    Publication date: February 4, 2016
    Inventors: Lars Risbo, Theis Harboe Christiansen