Patents by Inventor James R. Wordinger

James R. Wordinger 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).

  • Audio amplifier with an enhanced current limiter using a proxy signal
    Patent number: 9356566
    Abstract: An audio amplifier comprising an input block, a plurality of switches, an output filter, a current monitor and a proxy signal generator is provided. The input block is configured to receive an input signal and to provide a modulated signal. The plurality of switches is configured to generate an audio unfiltered signal including an undesired switching frequency component in response to the modulated signal. The output filter includes a coil and is configured to filter the undesired switching frequency from the audio unfiltered signal. The current monitor is configured to transmit a measurement output including a first operating frequency. The proxy signal generator is configured to provide a proxy signal including a second operating frequency. The input block is further configured to receive the first operating frequency and the second operating frequency to operate in accordance to the first operating frequency and the second operating frequency.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: May 31, 2016
    Assignee: Harman International Industries, Inc.
    Inventor: James R. Wordinger
  • AUDIO AMPLIFIER WITH AN ENHANCED CURRENT LIMITER USING A PROXY SIGNAL
    Publication number: 20150214906
    Abstract: An audio amplifier comprising an input block, a plurality of switches, an output filter, a current monitor and a proxy signal generator is provided. The input block is configured to receive an input signal and to provide a modulated signal. The plurality of switches is configured to generate an audio unfiltered signal including an undesired switching frequency component in response to the modulated signal. The output filter includes a coil and is configured to filter the undesired switching frequency from the audio unfiltered signal. The current monitor is configured to transmit a measurement output including a first operating frequency. The proxy signal generator is configured to provide a proxy signal including a second operating frequency. The input block is further configured to receive the first operating frequency and the second operating frequency to operate in accordance to the first operating frequency and the second operating frequency.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 30, 2015
    Applicant: Harman International Industries, Inc.
    Inventor: James R. Wordinger
  • Front panel for an audio amplifier
    Patent number: D394858
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: June 2, 1998
    Assignee: Crown International, Inc.
    Inventors: James R. Wordinger, Ronald A. Schemenauer