Patents by Inventor Scot C. Boon
Scot C. Boon 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).
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Patent number: 9345890Abstract: Embodiments of the invention are related to managing noise in sensed signals in implantable medical devices, amongst other things. In an embodiment the invention includes a method for processing electrical signals obtained from a patient including gathering a first set of electrical signals using an implantable medical device, filtering to provide a second set of electrical signals, the second set including frequencies above a threshold frequency, and estimating the amount of noise present in the first set of electrical signals based on the magnitude of the second set. In an embodiment, the invention includes a medical device configured to gather a first set of electrical signals, filter the first set to provide a second set of electrical signals including frequencies above a threshold frequency, and estimate the amount of noise present in the first set based on the magnitude of the second set. Other embodiments are also included herein.Type: GrantFiled: June 15, 2010Date of Patent: May 24, 2016Assignee: Cardiac Pacemakers, Inc.Inventors: Sunipa Saha, Eric K. Enrooth, Scot C. Boon
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Patent number: 9079032Abstract: An apparatus comprises a therapy circuit that provides a neural stimulation current, an impedance measurement circuit that measures a value of impedance at the output of the therapy circuit, a supply voltage generating circuit that provides an adjustable supply voltage value to the therapy circuit including a first supply voltage value when in a first mode, and a control circuit communicatively coupled to the therapy circuit, the impedance measuring circuit, and the supply voltage generating circuit. The control circuit, upon receiving an indication to exit the first mode, initiates an impedance measurement by the impedance measurement circuit, determines the second supply voltage value using the impedance measurement, and initiates a change from the first supply voltage value to the second supply voltage value. The second supply voltage value is sufficient to operate the therapy circuit and to provide a specified load current value to the measured impedance.Type: GrantFiled: October 29, 2012Date of Patent: July 14, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: David J. Ternes, Scott Vanderlinde, Ramprasad Vijayagopal, Scot C. Boon
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Patent number: 8938307Abstract: An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference.Type: GrantFiled: October 10, 2012Date of Patent: January 20, 2015Assignee: Cardiac Pacemakers, Inc.Inventors: Scot C. Boon, Keith R. Maile, William J. Linder, Paul Huelskamp, Ramprasad Vijayagopal
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Patent number: 8768462Abstract: Various aspects of the present subject matter provide a filter module. In various embodiments, the filter module comprises an input, an output, a signal path from the input to the output, a filter and a switch. The filter has a transfer response to attenuate a frequency of a neural stimulation signal. The switch is adapted to place the filter in the signal path when the neural stimulation signal is applied and to remove the filter from the signal path when the neural stimulation signal is not applied. Other aspects are provided herein.Type: GrantFiled: May 30, 2012Date of Patent: July 1, 2014Assignee: Cardiac Pacemakers, Inc.Inventors: Imad Libbus, Scot C. Boon
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Publication number: 20130073008Abstract: An apparatus comprises a therapy circuit that provides a neural stimulation current, an impedance measurement circuit that measures a value of impedance at the output of the therapy circuit, a supply voltage generating circuit that provides an adjustable supply voltage value to the therapy circuit including a first supply voltage value when in a first mode, and a control circuit communicatively coupled to the therapy circuit, the impedance measuring circuit, and the supply voltage generating circuit. The control circuit, upon receiving an indication to exit the first mode, initiates an impedance measurement by the impedance measurement circuit, determines the second supply voltage value using the impedance measurement, and initiates a change from the first supply voltage value to the second supply voltage value. The second supply voltage value is sufficient to operate the therapy circuit and to provide a specified load current value to the measured impedance.Type: ApplicationFiled: October 29, 2012Publication date: March 21, 2013Inventors: David J. Ternes, Scott Vanderlinde, Ramprasad Vijayagopal, Scot C. Boon
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Publication number: 20130033966Abstract: An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference.Type: ApplicationFiled: October 10, 2012Publication date: February 7, 2013Inventors: SCOT C. BOON, KEITH R. MAILE, WILLIAM J. LINDER, PAUL HUELSKAMP, RAMPRASAD VIJAYAGOPAL
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Patent number: 8290598Abstract: An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference.Type: GrantFiled: February 10, 2010Date of Patent: October 16, 2012Assignee: Cardiac Pacemakers, Inc.Inventors: Scot C. Boon, Keith R. Maile, William J. Linder, Paul Huelskamp, Ramprasad Vijayagopal
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Patent number: 8200332Abstract: Various aspects of the present subject matter provide a filter module. In various embodiments, the filter module comprises an input, an output, a signal path from the input to the output, a filter and a switch. The filter has a transfer response to attenuate a frequency of a neural stimulation signal. The switch is adapted to place the filter in the signal path when the neural stimulation signal is applied and to remove the filter from the signal path when the neural stimulation signal is not applied. Other aspects are provided herein.Type: GrantFiled: September 18, 2009Date of Patent: June 12, 2012Assignee: Cardiac Pacemakers, Inc.Inventors: Imad Libbus, Scot C. Boon
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Publication number: 20110187360Abstract: A method and device can include a Hall effect sensor, which can be formed as a portion of an integrated circuit of an implantable device and which can produce a non-linear current path such as to permit detecting a magnetic field parallel with the orientation of the Hall effect sensor of the implantable device.Type: ApplicationFiled: February 2, 2011Publication date: August 4, 2011Inventors: Keith R. Maile, Scot C. Boon, Abhi V. Chavan
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Publication number: 20100318151Abstract: Embodiments of the invention are related to managing noise in sensed signals in implantable medical devices, amongst other things. In an embodiment the invention includes a method for processing electrical signals obtained from a patient including gathering a first set of electrical signals using an implantable medical device, filtering to provide a second set of electrical signals, the second set including frequencies above a threshold frequency, and estimating the amount of noise present in the first set of electrical signals based on the magnitude of the second set. In an embodiment, the invention includes a medical device configured to gather a first set of electrical signals, filter the first set to provide a second set of electrical signals including frequencies above a threshold frequency, and estimate the amount of noise present in the first set based on the magnitude of the second set. Other embodiments are also included herein.Type: ApplicationFiled: June 15, 2010Publication date: December 16, 2010Applicant: CARDIAC PACEMAKERS, INC.Inventors: Sunipa Saha, Eric K. Enrooth, Scot C. Boon
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Publication number: 20100204758Abstract: An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference.Type: ApplicationFiled: February 10, 2010Publication date: August 12, 2010Inventors: Scot C. Boon, Keith R. Maile, William J. Linder, Paul Huelskamp, Ramprasad Vijayagopal
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Publication number: 20100010553Abstract: Various aspects of the present subject matter provide a filter module. In various embodiments, the filter module comprises an input, an output, a signal path from the input to the output, a filter and a switch. The filter has a transfer response to attenuate a frequency of a neural stimulation signal. The switch is adapted to place the filter in the signal path when the neural stimulation signal is applied and to remove the filter from the signal path when the neural stimulation signal is not applied. Other aspects are provided herein.Type: ApplicationFiled: September 18, 2009Publication date: January 14, 2010Inventors: Imad Libbus, Scot C. Boon
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Patent number: 6427085Abstract: A cardiac rhythm management device having a capture verification sensing circuit for use in either a normal beat to beat pacing mode or an autothreshold mode. The cardiac rhythm management device is coupled to one or more pacing leads having pacing/sensing electrodes coupled thereto, and includes a sensing circuit for sensing electrical activity of the patient's heart, wherein the sensing circuit includes a dedicated evoked response sense amplifier and at least one high pass coupling capacitor electrically connected as a portion of a high pass network and between a pacing/sensing electrode and a blanking switch. A plurality of high pass coupling capacitors are coupled in parallel each having a separate blanking switch, thereby creating a differential network to offset imbalance sensed from the electrode due to extraneous factors.Type: GrantFiled: May 11, 1999Date of Patent: July 30, 2002Assignee: Cardiac Pacemakers, Inc.Inventors: Scot C. Boon, Mark Gryzwa, Michael Lyden, Qingsheng Zhu, Paul Haefner
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Patent number: 6226551Abstract: A cardiac rhythm management device having a capture verification sensing circuit for use in either a normal beat to beat pacing mode or an autothreshold mode. The cardiac rhythm management device is coupled to one or more pacing leads having pacing/sensing electrodes coupled thereto, and includes a sensing circuit for sensing electrical activity of the patient's heart. The sensing circuit includes a sense amplifier electrically connected in a manner, wherein a polarity of an amplitude of the sensed signal corresponding to an evoked response is opposite a polarity of an amplitude of the sensed signal corresponding to afterpotential. The sensing circuit further includes a band pass filter having a single high pass pole.Type: GrantFiled: May 11, 1999Date of Patent: May 1, 2001Assignee: Cardiac Pacemakers, Inc.Inventors: Qingsheng Zhu, Michael Lyden, Scot C. Boon