Patents by Inventor Ronald Balczewski

Ronald Balczewski 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).

  • Security system for implantable medical devices
    Patent number: 6880085
    Abstract: A security system for programmable medical devices is provided. Such devices have a variety of features at least some of which are only enabled if a proper password is provided. Different levels of security are provided to protect the patent from inadvertent or unintended reprogramming or from deliberate, but unauthorized efforts to reprogram the device.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: April 12, 2005
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Ronald A. Balczewski, Karen Lent
  • Amplifier with common mode and offset correction
    Patent number: 6531907
    Abstract: A differential discrete-time signal processing channel differentially processes cardiac signals in an implantable cardiac rhythm management device. Such signal processing effectively uses downsampling to uses lower bias currents, thereby saving power and prolonging the life of the implanted device, and also reduces clock feedthrough, provides a wider dynamic range and better rejection of power supply noise. The device includes a continuous-time buffer, a decimator/averager and/or other filter and/or amplifier circuits, and an analog-to-digital converter, each configured for processing differential signals. The device also includes an operational transconductance amplifier (OTA), for the discrete-time differential signal processing. The OTA provides, among other things, an output common mode adjustment circuit and an offset compensation circuit.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: March 11, 2003
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Michael W. Dooley, Ronald Balczewski, William J. Linder
  • Cardiac rhythm management system with differential sensing channel
    Patent number: 6363277
    Abstract: A differential discrete-time signal processing channel differentially processes cardiac signals in an implantable cardiac rhythm management device. Such signal processing effectively uses downsampling to uses lower bias currents, thereby saving power and prolonging the life of the implanted device, and also reduces clock feedthrough, provides a wider dynamic range and better rejection of power supply noise. The device includes a continuous-time buffer, a decimator/averager and/or other filter and/or amplifier circuits, and an analog-to-digital converter, each configured for processing differential signals. The device also includes an operational transconductance amplifier (OTA), for the discrete-time differential signal processing. The OTA provides, among other things, an output common mode adjustment circuit and an offset compensation circuit.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: March 26, 2002
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Michael W. Dooley, Ronald Balczewski, William J. Linder