Patents by Inventor William A. Pollack

William A. Pollack 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).

  • System and method of measuring and controlling temperature of optical fiber tip in a laser system
    Patent number: 7144154
    Abstract: A system and method of sensing temperature at an optical fiber tip, including the steps of positioning a slug of fluorescent material adjacent the optical fiber tip, providing an optical stimulus having a wavelength within a first predetermined range through at least one fiber optically linked to the optical fiber tip, wherein a desired optical fluorescent response having a wavelength within a second predetermined range from the fluorescent slug is generated, detecting a signal representative of the optical stimulus, detecting a signal representative of the optical fluorescent response, digitally processing the optical stimulus signal and the optical fluorescent response signal to determine a phase difference therebetween, and calculating a temperature for the optical fiber tip as a function of the phase difference.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: December 5, 2006
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: David C. Yates, William A. Pollack, Robert M. Trusty, Scott Allen Nield
  • System and method of measuring and controlling temperature of optical fiber tip in a laser system
    Patent number: 6796710
    Abstract: A system and method of sensing temperature at an optical fiber tip, including the steps of positioning a slug of fluorescent material adjacent the optical fiber tip, providing an optical stimulus having a wavelength within a first predetermined range through at least one fiber optically linked to the optical fiber tip, wherein a desired optical fluorescent response having a wavelength within a second predetermined range from the fluorescent slug is generated, detecting a signal representative of the optical stimulus, detecting a signal representative of the optical fluorescent response, digitally processing the optical stimulus signal and the optical fluorescent response signal to determine a phase difference therebetween, and calculating a temperature for the optical fiber tip as a function of the phase difference.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: September 28, 2004
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: David C. Yates, William A. Pollack, Robert M. Trusty, Scott Allen Nield
  • System and method of measuring and controlling temperature of optical fiber tip in a laser system
    Publication number: 20040073133
    Abstract: A system and method of sensing temperature at an optical fiber tip, including the steps of positioning a slug of fluorescent material adjacent the optical fiber tip, providing an optical stimulus having a wavelength within a first predetermined range through at least one fiber optically linked to the optical fiber tip, wherein a desired optical fluorescent response having a wavelength within a second predetermined range from the fluorescent slug is generated, detecting a signal representative of the optical stimulus, detecting a signal representative of the optical fluorescent response, digitally processing the optical stimulus signal and the optical fluorescent response signal to determine a phase difference therebetween, and calculating a temperature for the optical fiber tip as a function of the phase difference.
    Type: Application
    Filed: August 28, 2003
    Publication date: April 15, 2004
    Inventors: David C. Yales, William A. Pollack, Robert M. Trusty, Scott Allen Nield
  • System and method of measuring and controlling temperature of optical fiber tip in a laser system
    Publication number: 20020186748
    Abstract: A system and method of sensing temperature at an optical fiber tip, including the steps of positioning a slug of fluorescent material adjacent the optical fiber tip, providing an optical stimulus having a wavelength within a first predetermined range through at least one fiber optically linked to the optical fiber tip, wherein a desired optical fluorescent response having a wavelength within a second predetermined range from the fluorescent slug is generated, detecting a signal representative of the optical stimulus, detecting a signal representative of the optical fluorescent response, digitally processing the optical stimulus signal and the optical fluorescent response signal to determine a phase difference therebetween, and calculating a temperature for the optical fiber tip as a function of the phase difference.
    Type: Application
    Filed: July 16, 2001
    Publication date: December 12, 2002
    Inventors: David C. Yates, William A. Pollack, Robert M. Trusty, Scott Allen Nield