Patents by Inventor Douglas R. Maxwell

Douglas R. Maxwell 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).

  • Simultaneous fundamental and harmonic ultrasonic imaging
    Patent number: 6514206
    Abstract: An ultrasonic diagnostic imaging system and method are described for performing fundamental frequency and second harmonic frequency imaging simultaneously. Transmit bursts are employed which include a first waveform component optimized for fundamental imaging and a second waveform component optimized for harmonic imaging. The first waveform component may be centered in the transducer passband, and the second waveform component may be located on the opposite side of the center of the transducer passband from its second harmonic frequency, for instance. Echoes received from the bursts are separated into fundamental and harmonic components and used to form separate fundamental and harmonic images or blended fundamental/harmonic images.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: February 4, 2003
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Douglas R. Maxwell, James R. Jago
  • Simultaneous fundamental and harmonic ultrasonic imaging
    Publication number: 20020128555
    Abstract: An ultrasonic diagnostic imaging system and method are described for performing fundamental frequency and second harmonic frequency imaging simultaneously. Transmit bursts are employed which include a first waveform component optimized for fundamental imaging and a second waveform component optimized for harmonic imaging. The first waveform component may be centered in the transducer passband, and the second waveform component may be located on the opposite side of the center of the transducer passband from its second harmonic frequency, for instance. Echoes received from the bursts are separated into fundamental and harmonic components and used to form separate fundamental and harmonic images or blended fundamental/harmonic images.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 12, 2002
    Inventors: Douglas R. Maxwell, James R. Jago