Patents by Inventor Shawn A. Johnson

Shawn A. Johnson 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: 20150301617
    Abstract: Provided are systems and methods for providing enhanced motion detection. One system providing enhanced motion detection includes a smart display, an interface subsystem including a human interface device (HID), and a console having a processor configured to form communication links with the smart display and the interface subsystem and to provide motion detection feedback, using the smart display, to a user of the HID, where the HID is configured to sense motion of the HID and utilize a predictive model to characterize the motion of the HID. One interface subsystem includes a camera to sense motion of a user of the HID. One processor is configured to negotiate a reduced response latency with the smart display.
    Type: Application
    Filed: July 2, 2015
    Publication date: October 22, 2015
    Applicant: Broadcom Corporation
    Inventors: John WALLEY, Shawn JOHNSON, Christopher PASQUALINO, Ike IKIZYAN, Xuemin CHEN
  • Patent number: 9104238
    Abstract: Provided are systems and methods for providing enhanced motion detection. One system providing enhanced motion detection includes a smart display, an interface subsystem including a human interface device (HID), and a console having a processor configured to form communication links with the smart display and the interface subsystem and to provide motion detection feedback, using the smart display, to a user of the HID, where the HID is configured to sense motion of the HID and utilize a predictive model to characterize the motion of the HID. One interface subsystem includes a camera to sense motion of a user of the HID. One processor is configured to negotiate a reduced response latency with the smart display.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: August 11, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: John Walley, Shawn Johnson, Christopher Pasqualino, Ike Ikizyan, Xuemin Chen
  • Publication number: 20150217111
    Abstract: An AIMD includes a conductive housing, an electrically conductive ferrule with an insulator hermetically sealing the ferrule opening. A conductive pathway is hermetically sealed and disposed through the insulator. A filter capacitor is disposed within the housing and has a dielectric body supporting at least two active and two ground electrode plates interleaved, wherein the at least two active electrode plates are electrically connected to the conductive pathway on the device side, and the at least two ground electrode plates are electrically coupled to either the ferrule and/or the conductive housing. The dielectric body has a dielectric constant less than 1000 and a capacitance of between 10 and 20,000 picofarads. The filter capacitor is configured for EMI filtering of MRI high RF pulsed power by a low ESR, wherein the ESR of the filter capacitor at an MRI RF pulsed frequency or range of frequencies is less than 2.0 ohms.
    Type: Application
    Filed: April 16, 2015
    Publication date: August 6, 2015
    Inventors: Robert A. Stevenson, Robert Shawn Johnson, Warren S. Dabney, Thomas Marzano, Richard L. Brendel, Christopher Michael Williams, Holly Noelle Moschiano, Keith W. Seitz, John E. Roberts
  • Publication number: 20150207484
    Abstract: A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.
    Type: Application
    Filed: March 26, 2015
    Publication date: July 23, 2015
    Inventors: Robert A. Stevenson, Robert Shawn Johnson, Kishore Kumar Kondabatni, Joseph E. Spaulding, Dominick J. Frustaci, Warren S. Dabney, Holly Noelle Moschiano
  • Patent number: 9071221
    Abstract: A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: June 30, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Robert Shawn Johnson, Kishore Kumar Kondabatni, Joseph E. Spaulding, Dominick J. Frustaci, Warren S. Dabney, Holly Noelle Moschiano
  • Patent number: 9061132
    Abstract: The present invention provides embodiments in which induced RF current heating along the length of a medical lead is reduced. Reduction of induced RF current heating in the medical lead is achieved by positioning a conductor about the exterior of an implantable medical device when the device is placed within an MRI environment. In one embodiment, an RF conductor is incorporated within a header assembly for connecting an implantable medical device to at least one conductor lead. The body of the RF conductor is positioned circumferentially around the implantable medical device. In another embodiment, the medical lead is positioned circumferentially around the exterior of the housing of the medical device. A series of clips or a sleeve holds the medical lead or RF conductor in place around the device.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: June 23, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Jeffrey Zweber, Robert Shawn Johnson
  • Publication number: 20150162656
    Abstract: Various embodiments of the present invention include assemblies and methods for utilizing antennas with high gain in small satellites. In one embodiment, a satellite comprising a payload configured for transmitting data is provided. The payload may include various components of the satellite, such as the attitude control system, electrical power system, and/or communication system. The satellite may be configured to communicate with one or more ground stations. The satellite includes a support structure comprising at least one deployable panel, wherein the support structure houses the payload. The satellite also includes at least one antenna coupled to the support structure, wherein the deployable panel is configured to cover the antenna in a non-deployed state and to expose the antenna in a deployed state.
    Type: Application
    Filed: June 11, 2013
    Publication date: June 11, 2015
    Inventors: Norman G. Fitz-Coy, Vivek Shirvante, Shawn Johnson, Kathryn Cason
  • Patent number: 9037258
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch disposed between the diversion circuit and the AIMD electronics for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: May 19, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard
  • Patent number: 9031670
    Abstract: A shielded component or network for an active medical device (AMD) implantable lead includes an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, a passive component or network disposed somewhere along the length of the implantable lead, the passive component or network including at least one inductive component having a first inductive value, and an electromagnetic shield substantially surrounding the inductive component or the passive network. The first inductive value of the inductive component is adjusted to account for a shift in its inductance to a second inductive value when shielded.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: May 12, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Warren S. Dabney, Robert Shawn Johnson, Holly Noelle Moschiano, Robert A. Stevenson, Henry R. Halperin, Albert C. Lardo, Kishore Kumar Kondabatni
  • Patent number: 9008799
    Abstract: A bandstop filter having optimum component values is provided for a lead of an active implantable medical device (AIMD). The bandstop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the implantable lead of the AIMD, wherein values of capacitance and inductance are selected such that the bandstop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the bandstop filter to attenuate current flow through the implantable lead along a range of selected frequencies.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 14, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Warren S. Dabney, Robert Shawn Johnson, Holly Noelle Moschiano, Henry R. Halperin
  • Patent number: 8996126
    Abstract: A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: March 31, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Robert Shawn Johnson, Kishore Kumar Kondabatni, Joseph Spaulding, Dominick J. Frustaci, Warren S. Dabney, Holly Noelle Moschiano
  • Patent number: 8989870
    Abstract: An energy management system facilitates the transfer of high frequency energy coupled into an implanted lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted lead to the energy dissipating surface through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted lead's impedance characteristics.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: March 24, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo
  • Patent number: 8977355
    Abstract: A bandstop filter having optimum component values is provided for a lead of an active implantable medical device (AIMD). The bandstop filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the implantable lead of the AIMD, wherein values of capacitance and inductance are selected such that the bandstop filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the bandstop filter to attenuate current flow through the implantable lead along a range of selected frequencies.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: March 10, 2015
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Warren S. Dabney, Robert Shawn Johnson, Holly Noelle Moschiano, Henry R. Halperin
  • Publication number: 20150066124
    Abstract: A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.
    Type: Application
    Filed: October 1, 2014
    Publication date: March 5, 2015
    Inventors: Robert A. Stevenson, Christine A. Frysz, Warren S. Dabney, Robert Shawn Johnson
  • Patent number: 8918189
    Abstract: A shielded component or network for an active medical device (AMD) implantable lead includes (1) an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, (2) a passive component or network disposed somewhere along the length of the implantable lead, the passive component or network including at least one inductive component having a first inductive value, and (3) an electromagnetic shield substantially surrounding the inductive component or the passive network. The first inductive value of the inductive component is adjusted to a account for a shift in its inductance to a second inductive value when shielded.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: December 23, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Warren S. Dabney, Robert Shawn Johnson, Holly Noelle Moschiano, Robert A. Stevenson, Henry R. Halperin, Albert C. Lardo, Kishore Kumar Kondabatni
  • Publication number: 20140356231
    Abstract: Systems and processes to dispense, clean and sanitize the key exposure points in the filling process to reduce risk of mold, yeast, or bacteria product spoilage, with minimal downtime. In some embodiments, a process uses a chemical solution that includes a liquid including potable water or another liquid—such as paramagnetic water, ultrapure water, R.O. water or any other kind of modified water—and a biocide solution such as sodium hypochlorite, stabilized chlorine dioxide, etc. at concentrations between 0.5 and 200 ppm or any of the components of electrochemical activated (EAC) water. In some embodiments, the water has a low enough chemical concentration to allow application without a follow-up rinse. The high ORP water at high pressure and flow removes the statically charged particles, preventing micro growth in between sprays, and effectively cleaning and sanitizing in a single step.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 4, 2014
    Inventors: Emilia Rico-Munoz, Shawn A. Johnson
  • Patent number: 8903505
    Abstract: A medical lead system includes at least one bandstop filter for attenuating current flow through the lead across a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency or range of frequencies. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: December 2, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Henry R. Halperin, Albert C. Lardo, Warren S. Dabney, Kishore Kumar Kondabatni, Christine A. Frysz, Robert Shawn Johnson, Holly Noelle Moschiano, Barry C. Muffoletto
  • Patent number: 8868189
    Abstract: A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: October 21, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Christine A. Frysz, Warren S. Dabney, Robert Shawn Johnson
  • Patent number: 8855768
    Abstract: An RF filter for an active medical device (AMD), for handling RF power induced in an associated lead from an external RF field at a selected MRI frequency or range frequencies includes a capacitor having a capacitance of between 100 and 10,000 picofarads, and a temperature stable dielectric having a dielectric constant of 200 or less and a temperature coefficient of capacitance (TCC) within the range of plus 400 to minus 7112 parts per million per degree centigrade. The capacitor's dielectric loss tangent in ohms is less than five percent of the capacitor's equivalent series resistance (ESR) at the selected MRI RF frequency or range of frequencies.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: October 7, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Dominick J. Frustaci, Warren S. Dabney, Robert A. Stevenson, Keith W. Seitz, Christine A. Frysz, Thomas Marzano, Richard L. Brendel, John E. Roberts, William Thiebolt, Christopher M. Williams, Jason Woods, Buehl E. Truex
  • Patent number: 8855785
    Abstract: An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire and at least one non-linear circuit element switch for diverting energy in the implanted lead or the leadwire to the energy dissipating surface. In alternate configurations, the switch may be disposed so that it electrically opens the implanted lead or the leadwire when diverting energy to the energy dissipating surface. The non-linear circuit element switch is typically a PIN diode.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 7, 2014
    Assignee: Greatbatch Ltd.
    Inventors: Robert Shawn Johnson, Warren S. Dabney, Robert A. Stevenson, Christopher Michael Williams, Holly Noelle Moschiano, Scott Brainard, Daniel Robert Kaiser, Henry R. Halperin, Albert C. Lardo, Scott W. Kelley