Patents by Inventor Samual H. Maslak

Samual H. Maslak 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).

  • Ultrasound imaging method and system for transmit signal generation for an ultrasonic imaging system capable of harmonic imaging
    Patent number: 5913823
    Abstract: An improvement to the method for harmonic imaging including the steps of (a) transmitting ultrasonic energy at a fundamental frequency and (b) receiving reflected ultrasonic energy at a harmonic of the fundamental frequency is provided. For the improvement, the transmitting step includes the step of transmitting a uni-polar waveform or a waveform characterized by an amplitude change rate of 8 or fewer times pre carrier cycle, said waveform comprising an envelope shape rising gradually to a respective maximum value and falling gradually from the respective maximum value.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: June 22, 1999
    Assignee: Acuson Corporation
    Inventors: David J. Hedberg, Stuart L. Carp, Stirling S. Dodd, Samual H. Maslak, Bhaskar S. Ramamurthy, Daniel E. Need, John A. Hossack
  • Ultrasonic imaging method and apparatus for generating pulse width modulated waveforms with reduced harmonic response
    Patent number: 5833614
    Abstract: An improvement to the method for harmonic imaging including the steps of (a) transmitting ultrasonic energy at a fundamental frequency and (b) receiving reflected ultrasonic energy at a harmonic of the fundamental frequency is provided. The transmitting step includes the step of transmitting a waveform comprising at least a sequence of at least a first and second pulse characterized by first and second pulse durations, respectively, where the second pulse duration is different than the first duration. This arrangement can reduce harmonic energy in the waveform.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 10, 1998
    Assignee: Acuson Corporation
    Inventors: Stirling S. Dodd, Stuart L. Carp, David M. Hedberg, Samual H. Maslak, Bhaskar S. Ramamurthy, Daniel E. Need