Patents by Inventor Jonathan Harwood

Jonathan Harwood 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).

  • Publication number: 20180357264
    Abstract: Techniques are disclosed for implementing a unified partitioning scheme within distributed database systems to allow a table to be horizontally partitioned and those partitions stored on and serviced by a storage group. A storage group is a subset of storage manager (SM) nodes, and each SM node is configured to persist database data in durable storage. The distributed database system assigns each storage group to a subset of SM nodes. The distributed database system can address each storage group using a symbolic mapping that allows transactions to identify a particular storage group, and to direct read and write operations to a subset of SM nodes servicing that storage group. An administrator can update this mapping on-the-fly to cause the distributed database system to dynamically adjust an implemented partitioning scheme without necessarily interrupting on-going database operations.
    Type: Application
    Filed: August 3, 2018
    Publication date: December 13, 2018
    Inventors: Michael Thomas Rice, Oleg Levin, Yan Avlasov, Seth Theodore Proctor, Thomas Jonathan Harwood
  • Patent number: 10067969
    Abstract: Techniques are disclosed for implementing a unified partitioning scheme within distributed database systems to allow a table to be horizontally partitioned and those partitions stored on and serviced by a storage group. A storage group is a subset of storage manager (SM) nodes, and each SM node is configured to persist database data in durable storage. The distributed database system assigns each storage group to a subset of SM nodes. The distributed database system can address each storage group using a symbolic mapping that allows transactions to identify a particular storage group, and to direct read and write operations to a subset of SM nodes servicing that storage group. An administrator can update this mapping on-the-fly to cause the distributed database system to dynamically adjust an implemented partitioning scheme without necessarily interrupting on-going database operations.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: September 4, 2018
    Assignee: NuoDB, INC.
    Inventors: Michael Thomas Rice, Oleg Levin, Yan Avlasov, Seth Theodore Proctor, Thomas Jonathan Harwood
  • Publication number: 20160350392
    Abstract: Techniques are disclosed for implementing a unified partitioning scheme within distributed database systems to allow a table to be horizontally partitioned and those partitions stored on and serviced by a storage group. A storage group is a subset of storage manager (SM) nodes, and each SM node is configured to persist database data in durable storage. The distributed database system assigns each storage group to a subset of SM nodes. The distributed database system can address each storage group using a symbolic mapping that allows transactions to identify a particular storage group, and to direct read and write operations to a subset of SM nodes servicing that storage group. An administrator can update this mapping on-the-fly to cause the distributed database system to dynamically adjust an implemented partitioning scheme without necessarily interrupting on-going database operations.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 1, 2016
    Applicant: NuoDB, INC.
    Inventors: Michael Thomas Rice, Oleg Levin, Yan Avlasov, Seth Theodore Proctor, Thomas Jonathan Harwood
  • Patent number: 9468383
    Abstract: A system for detecting acute ischemia includes at least two sensors configured for obtaining electrical signals from a patient's heart, analog-to-digital converter circuitry for digitizing the signal to produce data segments, and a processor configured to analyze data segments to determine if they represent an abnormal heart rhythm. Certain types of abnormal rhythm segments are also checked for acute ischemia. If enough of the abnormal heart rhythm segments manifest acute ischemia, a first type of alarm event is generated. If persistent abnormal heart rhythm segments do not manifest acute ischemia, a second type of alarm event is generated.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: October 18, 2016
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Tim A. Fischell, Jonathan Harwood, Robert E. Fischell
  • Publication number: 20160128595
    Abstract: A system for detecting cardiac events and alerting the patient of the cardiac event issued by an implanted medical device. A processor detects a cardiac event and issues an activation signal to a patient alerting mechanism which emits an alarm during a first time interval followed by an alarm-off period of time. Reminder alarms are issued periodically following the alarm-off period of time. Reminder alarms are issued during reminder on-periods of time which are shorter than the first time interval. The alarm-off period and the time between periodic reminder alarms are greater than the alarm first time interval. A disabling device permits disabling of reminder alarms.
    Type: Application
    Filed: January 19, 2016
    Publication date: May 12, 2016
    Inventors: DAVID R. FISCHELL, TIM A. FISCHELL, JONATHAN HARWOOD, ROBERT E. FISCHELL, STEVEN R. JOHNSON
  • Publication number: 20150289774
    Abstract: A system for detecting acute ischemia includes at least two sensors configured for obtaining electrical signals from a patient's heart, analog-to-digital converter circuitry for digitizing the signal to produce data segments, and a processor configured to analyze data segments to determine if they represent an abnormal heart rhythm. Certain types of abnormal rhythm segments are also checked for acute ischemia. If enough of the abnormal heart rhythm segments manifest acute ischemia, a first type of alarm event is generated. If persistent abnormal heart rhythm segments do not manifest acute ischemia, a second type of alarm event is generated.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Inventors: DAVID R. FISCHELL, TIM A. FISCHELL, JONATHAN HARWOOD, ROBERT E. FISCHELL
  • Patent number: 9101278
    Abstract: Disclosed is a system for the detection of cardiac events (a guardian system) that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using one or more detection algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the guardian system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means).
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: August 11, 2015
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Tim A. Fischell, Jonathan Harwood, Robert E. Fischell
  • Patent number: 9005130
    Abstract: A method for tracking cardiac conditions is disclosed. An electrical signal from a patient's heart is sensed. A heart signal parameter value and an associated heart rate value are computed from the electrical signal. Based on the heart rate value, one of a plurality of histograms stored in a histogram memory is updated with the heart signal parameter value. After a data collection time period has elapsed, a statistical value of the heart signal parameter is computed from the selected histogram. A detection threshold for abnormal values of the heart signal parameter is then computed based on the statistical value.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: April 14, 2015
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Robert E. Fischell, Jonathan Harwood, Steven R. Johnson
  • Patent number: 8965494
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: February 24, 2015
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Tim A. Fischell, Jonathan Harwood, Robert E. Fischell, Steven R. Johnson
  • Publication number: 20150018658
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Inventors: DAVID R. FISCHELL, TIM A. FISCHELL, JONATHAN HARWOOD, ROBERT E. FISCHELL, STEVEN R. JOHNSON
  • Publication number: 20140107454
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 17, 2014
    Applicant: Angel Medical Systems, Inc.
    Inventors: DAVID R. FISCHELL, TIM A. FISCHELL, JONATHAN HARWOOD, ROBERT E. FISCHELL, STEVEN R. JOHNSON
  • Publication number: 20140107514
    Abstract: A physician's programmer for an implantable device is disclosed. The programmer includes a receiver for receiving wireless transmission data from the implantable heart monitor. A processor is configured to extract from the wireless transmission data ST-deviation histogram data as a function of heart rate. The histogram data for a particular heart rate range is shown on a display in the form of a bar chart. The histogram data for a plurality of heart rate ranges is shown in the form of a chart with multiple line plots.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 17, 2014
    Applicant: ANGEL MEDICAL SYSTEMS, INC.
    Inventors: DAVID R. FISCHELL, ROBERT E. FISCHELL, JONATHAN HARWOOD, STEVEN R. JOHNSON
  • Patent number: 8655434
    Abstract: A physician's programmer for an implantable device is disclosed. The programmer includes a receiver for receiving wireless transmission data from the implantable heart monitor. A processor is configured to extract from the wireless transmission data ST-deviation histogram data as a function of heart rate. The histogram data for a particular heart rate range is shown on a display in the form of a bar chart. The histogram data for a plurality of heart rate ranges is shown in the form of a chart with multiple line plots.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: February 18, 2014
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Robert E. Fischell, Jonathan Harwood, Steven R. Johnson
  • Patent number: 8630702
    Abstract: A system for the detection of cardiac events occurring in a human patient is provided. At least two electrodes are included in the system for obtaining an electrical signal from a patient's heart. An electrical signal processor is electrically coupled to the electrodes for processing the electrical signal and a patient alarm means is further provided and electrically coupled to the electrical signal processor. The electrical signal is acquired in the form of electrogram segments, which are categorized according to heart rate, ST segment shift and type heart rhythm (normal or abnormal). Baseline electrogram segments are tracked over time.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: January 14, 2014
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Tim A. Fischell, Jonathan Harwood, Robert E. Fischell, Steven R. Johnson, Bruce Hopenfeld, Michael Sasha John
  • Patent number: 8512257
    Abstract: Disclosed is a system for the detection of cardiac events (a guardian system) that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using one or more detection algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the guardian system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means).
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: August 20, 2013
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Jonathan Harwood, Robert E. Fischell, Steven R. Johnson
  • Patent number: 8457725
    Abstract: An implanted device which includes a vibrator having a drive motor and a drive circuit. An accelerometer is connected to the vibrator and senses alarm test data related to the displacement of the vibrator. A power source provides electricity to the implanted device and a processor is configured for bi-directional wireless communication. The processor is configured for receiving a command from an external device for performance of an alarm test and the processor analyzes the alarm test data for generating test results.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: June 4, 2013
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Michael Sasha John, Jonathan Harwood
  • Patent number: 8301231
    Abstract: Alarm tests are disclosed which use alarm test signals to assess alarms provided by medical devices. Especially relevant are implanted devices that monitor cardiac activity and provide notification in response to medically relevant events. Alarm tests can occur periodically, or in response to a patient, doctor, or remote party initiating the alarm test. Alarm tests can also occur during the actual alarms issued to detected medical events. Alarm tests lead to pass or fail results, which in turn may cause operations to contingently occur. Alarm test failure in the auditory, visual, or tactile modality, may cause an alternatively defined alarm signal to be used as back-up. Alarm test logs can store alarm test results, including quantification of the measured alarm signal. Rapid alarm tests are described, as are various methods of accurately measuring characteristics of the test signal in ambulatory patients, which are especially relevant to a vibration alarm.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: October 30, 2012
    Assignee: Angel Medical, Inc.
    Inventors: David R. Fischell, Jonathan Harwood, Michael Sasha John
  • Patent number: 8265740
    Abstract: Disclosed is a system for the detection of cardiac events that includes an implanted device called a cardiosaver, a physician's programmer and an external alarm system. The system is designed to provide early detection of cardiac events such as acute myocardial infarction or exercise induced myocardial ischemia caused by an increased heart rate or exertion. The system can also alert the patient with a less urgent alarm if a heart arrhythmia is detected. Using different algorithms, the cardiosaver can detect a change in the patient's electrogram that is indicative of a cardiac event within five minutes after it occurs and then automatically warn the patient that the event is occurring. To provide this warning, the system includes an internal alarm sub-system (internal alarm means) within the cardiosaver and/or an external alarm system (external alarm means) which are activated after the ST segment of the electrogram exceeds a preset threshold.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 11, 2012
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Tim A. Fischell, Jonathan Harwood, Robert E. Fischell, Steven R. Johnson
  • Publication number: 20120215089
    Abstract: A physician's programmer for an implantable device is disclosed. The programmer includes a receiver for receiving wireless transmission data from the implantable heart monitor. A processor is configured to extract from the wireless transmission data ST-deviation histogram data as a function of heart rate. The histogram data for a particular heart rate range is shown on a display in the form of a bar chart. The histogram data for a plurality of heart rate ranges is shown in the form of a chart with multiple line plots.
    Type: Application
    Filed: May 1, 2012
    Publication date: August 23, 2012
    Applicant: ANGEL MEDICAL SYSTEMS, INC.
    Inventors: DAVID R. FISCHELL, ROBERT E. FISCHELL, JONATHAN HARWOOD, STEVEN R. JOHNSON
  • Patent number: 8244338
    Abstract: A system for cardiac event detection over varying time scales includes implanted electrical leads forming a portion of an implanted cardiotracker and external equipment including external alarm mechanisms and a physicians programmer. The cardiac event detection system monitors the degradation of a patient's cardiovascular condition from one or more causes. A processor computes the electrical signals of a heart signal parameter's average value over a time period for a multiplicity of heart rate ranges. The electrical signals are stored and information transmitted to external equipment.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: August 14, 2012
    Assignee: Angel Medical Systems, Inc.
    Inventors: David R. Fischell, Robert E. Fischell, Jonathan Harwood, Steven R. Johnson