Patents by Inventor Stephen Tymoszuk

Stephen Tymoszuk 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).

  • Capacitance level measurement circuit and system
    Patent number: 6529017
    Abstract: A capacitance measurement circuit and probe includes a drive circuit couplable to a constant-current source, a threshold detector, a probe capacitor, and a reference capacitor. The circuit includes a plurality of switches being actuatable to alternately couple the current source to the probe capacitor and to the reference capacitor. The drive circuit is configured to alternately generate a signal of linear ramp waveform having a slope that is proportional to the magnitude of capacitance of the probe capacitor and of the reference capacitor. The voltage differential between the probe capacitor and reference capacitor are actively nulled to nominally eliminate a parasitic capacitance therebetween.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: March 4, 2003
    Assignee: RobertShaw Controls Company
    Inventors: Barry E. Martin, Stephen Tymoszuk, Benjamin N. Lease
  • Capacitance level measurement circuit and system
    Publication number: 20020008526
    Abstract: A capacitance measurement circuit and probe includes a drive circuit couplable to a constant-current source, a threshold detector, a probe capacitor, and a reference capacitor. The circuit includes a plurality of switches being actuatable to alternately couple the current source to the probe capacitor and to the reference capacitor. The drive circuit is configured to alternately generate a signal of linear ramp waveform having a slope that is proportional to the magnitude of capacitance of the probe capacitor and of the reference capacitor. The voltage differential between the probe capacitor and reference capacitor are actively nulled to nominally eliminate a parasitic capacitance therebetween.
    Type: Application
    Filed: April 13, 2001
    Publication date: January 24, 2002
    Inventors: Barry E. Martin, Stephen Tymoszuk, Benjamin N. Lease
  • Method and system for generating and mailing a system performance report, utilizing a report template with predetermined control commands for controlling the printer
    Patent number: 5787278
    Abstract: A report generation system and method for generating a report at predetermined timed intervals is described. In accordance with the teachings of this invention, system usage data is read from a memory device. A report template file controls print control commands which identifies the system usage data which should be printed in a report along with the report format characteristics. The formatted report is then inserted into an envelope, ready to be mailed by the user. The present invention further includes a system and method for identifying a current version of software installed in a mailing system.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: July 28, 1998
    Assignee: Pitney Bowes Inc.
    Inventors: Maya Barton, James L. Harman, Gary S. Jacobson, Stephen Tymoszuk, Eric L. Zuidema