Mark L Schwartz

US Patent:

7031764, Apr 18, 2006

Filed:

Nov 8, 2002

Appl. No.:

10/291200

Inventors:

Mark Schwartz - Hugo MN, US
Joseph M. Bocek - Seattle WA, US
Jaeho Kim - Redmond WA, US

Assignee:

Cardiac Pacemakers, Inc. - Saint Paul MN

International Classification:

A61B 5/452
A61N 1/365

US Classification:

600518, 607 4, 607 5, 607 14, 600519

Abstract:

Multiple morphology templates for discliminating between rhythms have been used, such as supraventricular tachyarrhythmias (SVTs) and ventricular tachyarrhythmias (VTs), for delivering a countershock in response to a VT episode, but withholding delivery of such a countershock in response to an SVT episode. In certain examples, the particular morphology used for storing morphological features is selected at least in part using a sensor-indicated activity level of a subject, or a metabolic need of the subject.

US Patent:

7239914, Jul 3, 2007

Filed:

Dec 12, 2001

Appl. No.:

10/017800

Inventors:

Eric G. Lovett - Mendota Heights MN, US
Mark Schwartz - White Bear Lake MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N 1/365

US Classification:

607 17, 607 9

Abstract:

A rate smoothing function used in implantable pulse generators uses detected triggering events, which cause the rate smoothing function to be activated or deactivated, and detected parameter adjusting events, which cause parameter(s) of the rate smoothing function to be changed. In one example, the activation/deactivation and/or change to the parameters of the rate smoothing function are temporary, and the pre-event state of the rate smoothing function is set to a post-adjusting state, such as after a first time interval. Rate smoothing may be selected, activated or deactivated, or adjusted based on a cardiac signal state, or based on an activity or other physiological sensor signal. The adjusted rate smoothing parameters may include an up-smoothing percentage to limit a speed of pacing rate increase and a down-smoothing percentage to limit a speed of pacing rate drop.

US Patent:

7272444, Sep 18, 2007

Filed:

May 6, 2004

Appl. No.:

10/841966

Inventors:

Les Norman Peterson - Woodbury MN, US
Paula Dieterle - Champlin MN, US
Par Lindh - Maple Grove MN, US
James Kalgren - Lino Lakes MN, US
James O. Gilkerson - Stillwater MN, US
Dorothy Marie Naumann - Stillwater MN, US
Kenneth H. Persen - Maple Grove MN, US
Mark Joseph Schwartz - White Bear Lake MN, US
Tala L Bynum - Rogers MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N 1/37

US Classification:

607 30, 607 31, 607 32, 607 59, 607 60, 607 27

Abstract:

A medical device programmer automatically adjusts parameters to be programmed to a medical device in response to a user modifying related parameters. Slide controllers on the programmer display screen can adjust parameters. In response to slide controller movement, the programmer automatically adjusts related parameters by moving their slide controllers. This graphically illustrates to the user the automatic adjustments being made to the related parameters. and the relationship between parameters being adjusted by the user and automatically. In response to on screen parameter changes, the system graphically illustrates the parameter values that are changed and those that are programmed to the medical device and those that would cause unsafe condition in the medical device if programmed. The method also prevents the programming to the medical device the parameters that would cause an unsafe condition.

US Patent:

7277756, Oct 2, 2007

Filed:

Aug 16, 2004

Appl. No.:

10/919075

Inventors:

Mitchell Smith - Mahtomedi MN, US
Mark Schwartz - White Bear Lake MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61B 5/0468
A61N 1/365

US Classification:

607 18, 600515, 607 14, 607 19, 607 20

Abstract:

A system comprising an implantable medical device (IMD). The IMD comprises a ventricular heart signal sensing circuit to provide a ventricular heart signal, at least one sensor operable to provide an electrical signal representative of patient activity, a sensor interface circuit coupled to the at least one sensor to provide an activity signal, and a controller circuit coupled to the heart signal sensing circuit and the sensor interface circuit. The controller circuit is operable to determine whether ventricular ectopy occurs during recovery from exercise using the heart signal, and to set at least one warning indicator if ventricular ectopy occurs during the recovery from exercise.

US Patent:

7307547, Dec 11, 2007

Filed:

Jun 1, 2005

Appl. No.:

11/142013

Inventors:

Mark A. Schwartz - River Falls WI, US

Assignee:

Global Traffic Technologies, LLC - Oakdale MN

International Classification:

G08G 1/095

US Classification:

340907, 340906, 340924, 701117

Abstract:

A secure optical-communication traffic-preemption system and method is provided that securely communicates an identification code from an optical emitter to a traffic location. The optical emitter transmits light pulses that represent an encrypted code that is an encryption using a time-varying encryption key of at least an identification code. An optical detector situated at a traffic location receives the transmitted light pulses. Validation, including decryption using a time-varying decryption key, is attempted for the encrypted identification code represented within the received light pulses. In response to validating the included identification code, a traffic-preemption command is generated for a traffic light at the traffic location.

US Patent:

7333028, Feb 19, 2008

Filed:

Jun 1, 2005

Appl. No.:

11/142019

Inventors:

Mark A. Schwartz - River Falls WI, US

Assignee:

Global Traffic Technologies, LLC - Oakdale MN

International Classification:

G08G 1/095

US Classification:

340907, 340906, 340924, 701117

Abstract:

A remotely-controlled traffic-preemption system and method includes an encoder circuit, an optical source, an optical detector, and a decoder circuit. The encoder circuit is adapted to generate a set of signal pulses. At least one bit of a data word is encoded as a function of amplitude modulation of a first subset of the set of signal pulses and at least another bit of the data word is encoded as a function of frequency modulation of a second subset of the set of signal pulses. The optical source is adapted to transmit a set of light pulses having a respective light pulse for each signal pulse of the set of signal pulses. The optical detector is adapted to receive the set of light pulses. The decoder circuit is adapted to generate the data word from the set of light pulses received at the optical detector.

US Patent:

7417560, Aug 26, 2008

Filed:

Jun 1, 2005

Appl. No.:

11/142026

Inventors:

Mark A. Schwartz - River Falls WI, US

Assignee:

Global Traffic Technologies, LLC - Oakdale MN

International Classification:

G08G 1/07

US Classification:

340906

Abstract:

A traffic light control system includes at least one parameter and a signal decoding circuit. The parameter or parameters are useful for assisting in differentiating between multiple communication modes. The signal decoding circuit has a front-end circuit and a back-end circuit. The front-end circuit is adapted to receive respective signals transmitted in multiple communication modes. The front-end circuit is adapted to produce data representative of at least a portion of the respective signals. The back-end circuit is adapted to interpret and process the produced data according to at least one of multiple traffic light control protocols respectively associated with the multiple communication modes. The signal decoding circuit is adapted to access said at least one parameter and associate the produced data with one of the multiple communication modes.

US Patent:

7432826, Oct 7, 2008

Filed:

Jun 16, 2005

Appl. No.:

11/154347

Inventors:

Mark A. Schwartz - River Falls WI, US

Assignee:

Global Traffic Technologies, LLC - Oakdale MN

International Classification:

G08G 1/00

US Classification:

340902, 340906, 701117

Abstract:

A traffic-preemption system and method that communicates an identification code from vehicles to a traffic location. Traffic light control equipment, such as a receiver and traffic light circuit at each intersection of a controlled area, is used to manage headway in mass-transit systems as well as to provide traffic light pre-emption for emergency vehicles. Each traffic light circuit in the controlled area has a receiver located at a traffic location and adapted to receive an identification code from a mass-transit vehicle. A decoding circuit responds to the received identification code by attempting to identify the mass-transit vehicle and determine the timing on the identified route that improves an identified vehicle's headway and/or route timing. In response to determining the timing, a traffic-preemption command is generated for a traffic light on the identified route.