Patents by Inventor Karen M. Lent

Karen M. Lent 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).

  • Patent number: 8290589
    Abstract: A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: October 16, 2012
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Joseph E. Bange, Allan T. Koshiol, Karen M. Lent, Paul Holmquist, Thomas J. Harris
  • Publication number: 20110313491
    Abstract: A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Inventors: Joseph E. Bange, Allan T. Koshiol, Karen M. Lent, Paul Holmquist, Thomas J. Harris
  • Patent number: 8024043
    Abstract: A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: September 20, 2011
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Joseph E. Bange, Allan T. Koshiol, Karen M. Lent, Paul Holmquist, Thomas J. Harris
  • Patent number: 7668596
    Abstract: An implantable medical device includes a radio-frequency (RF) telemetry circuit connected to an energy source through a power connection module to obtain power when a user initiates an RF telemetry session. After the session is completed, the power connection module shuts off the at least one portion of the RF telemetry circuit. Power-on examples include a wireless telemetry activation signal received by a low power radio receiver in the implantable device, a physical motion detected by an activity sensor therein, an activation of an inductive telemetry circuit therein, a magnetic field detected by a magnetic field detector therein, and/or a telemetry activation signal detected by a sensing circuit included therein. Power-off examples include a wireless termination signal received by the implantable device, a delay timeout after the session, and/or a signal received by an inductive telemetry circuit in the implantable device.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: February 23, 2010
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey A. Von Arx, David J. Yonce, Scott T. Mazar, Karen M. Lent, Thomas J. Harris
  • Publication number: 20080215121
    Abstract: A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.
    Type: Application
    Filed: April 14, 2008
    Publication date: September 4, 2008
    Inventors: Joseph E. Bange, Allan T. Koshiol, Karen M. Lent, Paul Holmquist, Thomas J. Harris
  • Patent number: 7359753
    Abstract: A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: April 15, 2008
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Joseph E. Bange, Allan T. Koshiol, Karen M. Lent, Paul Holmquist, Thomas J. Harris
  • Patent number: 7319903
    Abstract: A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: January 15, 2008
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Joseph E. Bange, Allan T. Koshiol, Karen M. Lent, Paul Holmquist, Thomas J. Harris
  • Patent number: 7110824
    Abstract: A system and method for transmitting telemetry data from an implantable medical device to an external device. A connection-oriented protocol is used to transmit data at a higher data rate while a burst mode protocol is used to transmit data a lower data rate. The lower data rate may be used for remote communications where the received signal is of lower power.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: September 19, 2006
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Mark D. Amundson, William J. Linder, Karen M. Lent, Scott T. Mazar
  • Patent number: 6985773
    Abstract: An implantable medical device includes a radio-frequency (RF) telemetry circuit and a power connection module through which the RF telemetry circuit is connected to an energy source such as a battery. The power connection module connects power from the energy source to at least one portion of the RF telemetry circuit when a user initiates an RF telemetry session. After the RF telemetry session is completed, the power connection module shuts off the at least one portion of the RF telemetry circuit. Power-on examples include a wireless telemetry activation signal received by a low power radio receiver in the implantable device, a physical motion detected by an activity sensor in the implantable device, an activation of an inductive telemetry circuit in the implantable device, a magnetic field detected by a magnetic field detector in the implantable device, and/or a telemetry activation signal detected by a sensing circuit included in the implantable device.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: January 10, 2006
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey A. Von Arx, David J. Yonce, Scott T. Mazar, Karen M. Lent, Thomas J. Harris
  • Publication number: 20040127959
    Abstract: A system and method for transmitting telemetry data from an implantable medical device to an external device. A connection-oriented protocol is used to transmit data at a higher data rate while a burst mode protocol is used to transmit data a lower data rate. The lower data rate may be used for remote communications where the received signal is of lower power.
    Type: Application
    Filed: August 11, 2003
    Publication date: July 1, 2004
    Applicant: Cardiac Pacemakers, Inc.
    Inventors: Mark D. Amundson, William J. Linder, Karen M. Lent, Scott T. Mazar
  • Publication number: 20030149459
    Abstract: An implantable medical device includes a radio-frequency (RF) telemetry circuit and a power connection module through which the RF telemetry circuit is connected to an energy source such as a battery. The power connection module connects power from the energy source to at least one portion of the RF telemetry circuit when a user initiates an RF telemetry session. After the RF telemetry session is completed, the power connection module shuts off the at least one portion of the RF telemetry circuit. Power-on examples include a wireless telemetry activation signal received by a low power radio receiver in the implantable device, a physical motion detected by an activity sensor in the implantable device, an activation of an inductive telemetry circuit in the implantable device, a magnetic field detected by a magnetic field detector in the implantable device, and/or a telemetry activation signal detected by a sensing circuit included in the implantable device.
    Type: Application
    Filed: February 7, 2002
    Publication date: August 7, 2003
    Inventors: Jeffrey A. Von Arx, David J. Yonce, Scott T. Mazar, Karen M. Lent, Thomas J. Harris
  • Publication number: 20030009204
    Abstract: A system and method for transmitting telemetry data from an implantable medical device to an external device. A connection-oriented protocol is used to transmit data at a higher data rate while a burst mode protocol is used to transmit data a lower data rate. The lower data rate may be used for remote communications where the received signal is of lower power.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 9, 2003
    Inventors: Mark D. Amundson, William J. Linder, Karen M. Lent, Scott T. Mazar