Patents by Inventor Ji-Jon Sit
Ji-Jon Sit 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: 11938327Abstract: A stimulation system for a patient is provided. The system comprises: at least one implantable device comprising at least one implantable antenna; and an external device comprising at least one external antenna, wherein the at least one external antenna transfers power to the at least one implantable antenna. The at least one implantable device delivers therapy to the patient. A patient attachment device or body covering positions the at least one external antenna relative to the patient.Type: GrantFiled: September 29, 2021Date of Patent: March 26, 2024Assignee: Nalu Medical, Inc.Inventors: Lee Fason Hartley, Christopher Linden, Daniel M. Pivonka, Ji-Jon Sit, Lakshmi Narayan Mishra, Logan Palmer, Brett Daniel Schleicher, Mark David Londborg, James Goodman, James C. Makous, Andre Castillo
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Publication number: 20230129373Abstract: Provided is a medical apparatus for a patient comprising an external system and an implantable system. The external system can be configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system can be configured to receive the one or more transmission signals from the external system. The external system comprises a first external device comprising at least one external antenna configured to transmit a first transmission signal to the implantable system. The implantable system comprises a first implantable device comprising at least one implantable antenna configured to receive the first transmission signal from the first external device. At least one of the external antenna or implantable antenna comprises an antenna assembly comprising: at least one transmitting/receiving antenna; and at least one shielding element positioned between the at least one transmitting/receiving antenna and an interfering component.Type: ApplicationFiled: October 12, 2022Publication date: April 27, 2023Inventors: Ji-Jon Sit, Daniel M. Pivonka
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Patent number: 11511121Abstract: Provided is a medical apparatus for a patient comprising an external system and an implantable system. The external system can be configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system can be configured to receive the one or more transmission signals from the external system. The external system comprises a first external device comprising at least one external antenna configured to transmit a first transmission signal to the implantable system. The implantable system comprises a first implantable device comprising at least one implantable antenna configured to receive the first transmission signal from the first external device. At least one of the external antenna or implantable antenna comprises an antenna assembly comprising: at least one transmitting/receiving antenna; and at least one shielding element positioned between the at least one transmitting/receiving antenna and an interfering component.Type: GrantFiled: June 26, 2019Date of Patent: November 29, 2022Assignee: Nalu Medical, Inc.Inventors: Ji-Jon Sit, Daniel M. Pivonka
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Publication number: 20220176108Abstract: A medical apparatus for a patient comprises an external system and an implantable system. The external system is configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system is configured to receive the one or more transmission signals from the external system, and to deliver stimulation energy to the patient. Methods of delivering stimulation energy are also provided.Type: ApplicationFiled: July 19, 2021Publication date: June 9, 2022Inventors: Christopher LINDEN, Andre CASTILLO, Logan PALMER, Ji-Jon SIT, Daniel M. PIVONKA, Lakshmi Narayan MISHRA, James C. MAKOUS, Lee Fason HARTLEY, James C. LEE, J. Christopher FLAHERTY
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Patent number: 11318315Abstract: A stimulation system for a patient is provided. The system comprises: at least one implantable device comprising at least one implantable antenna; and an external device comprising at least one external antenna, wherein the at least one external antenna transfers power to the at least one implantable antenna. The at least one implantable device delivers therapy to the patient. A patient attachment device or body covering positions the at least one external antenna relative to the patient.Type: GrantFiled: August 24, 2018Date of Patent: May 3, 2022Assignee: NALU MEDICAL, INC.Inventors: Lee Fason Hartley, Christopher Linden, Daniel M. Pivonka, Ji-Jon Sit, Lakshmi Narayan Mishra, Logan Palmer, Brett Daniel Schleicher, Mark David Londborg, James Goodman, James C. Makous, Andre Castillo
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Patent number: 11296552Abstract: Various embodiments may provide a transmitter device. The transmitter device may include an oscillator configured to operate at a variable oscillation frequency to generate an oscillator signal. The transmitter device may also include a transmitter antenna configured to transmit power to a receiver device via magnetic coupling based on the oscillator signal. The transmitter device may further include a feedback arrangement configured to generate a feedback to the oscillator based on a resonant frequency of the magnetic coupling between the transmitter antenna and a receiver antenna of the receiver device such that the variable oscillation frequency of the oscillator is adjusted towards the resonant frequency.Type: GrantFiled: June 11, 2019Date of Patent: April 5, 2022Assignee: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Ji-Jon Sit, Guangyin Feng
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Publication number: 20220016430Abstract: A stimulation system for a patient is provided. The system comprises: at least one implantable device comprising at least one implantable antenna; and an external device comprising at least one external antenna, wherein the at least one external antenna transfers power to the at least one implantable antenna. The at least one implantable device delivers therapy to the patient. A patient attachment device or body covering positions the at least one external antenna relative to the patient.Type: ApplicationFiled: September 29, 2021Publication date: January 20, 2022Inventors: Lee Fason HARTLEY, Christopher LINDEN, Daniel M. PIVONKA, Ji-Jon SIT, Lakshmi Narayan MISHRA, Logan PALMER, Brett Daniel SCHLEICHER, Mark David LONDBORG, James GOODMAN, James C. MAKOUS, Andre CASTILLO
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Patent number: 11097096Abstract: A medical apparatus for a patient comprises an external system and an implantable system. The external system is configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system is configured to receive the one or more transmission signals from the external system, and to deliver stimulation energy to the patient. Methods of delivering stimulation energy are also provided.Type: GrantFiled: November 4, 2019Date of Patent: August 24, 2021Assignee: Nalu Medical, Inc.Inventors: Christopher Linden, Andre Castillo, Logan Palmer, Ji-Jon Sit, Daniel M. Pivonka, Lakshmi Narayan Mishra, James C. Makous, Lee Fason Hartley, James C. Lee, J. Christopher Flaherty
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Publication number: 20210119488Abstract: Various embodiments may provide a transmitter device. The transmitter device may include an oscillator configured to operate at a variable oscillation frequency to generate an oscillator signal. The transmitter device may also include a transmitter antenna configured to transmit power to a receiver device via magnetic coupling based on the oscillator signal. The transmitter device may further include a feedback arrangement configured to generate a feedback to the oscillator based on a resonant frequency of the magnetic coupling between the transmitter antenna and a receiver antenna of the receiver device such that the variable oscillation frequency of the oscillator is adjusted towards the resonant frequency.Type: ApplicationFiled: June 11, 2019Publication date: April 22, 2021Inventors: Ji-Jon SIT, Guangyin FENG
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Publication number: 20200306528Abstract: A medical apparatus for a patient comprises an external system and an implantable system. The external system is configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system is configured to receive the one or more transmission signals from the external system, and to deliver stimulation energy to the patient. Methods of delivering stimulation energy are also provided.Type: ApplicationFiled: November 4, 2019Publication date: October 1, 2020Inventors: Christopher LINDEN, Andre CASTILLO, Logan PALMER, Ji-Jon SIT, Daniel M. PIVONKA, Lakshmi Narayan MISHRA, James C. MAKOUS, Lee Fason HARTLEY, James C. LEE, J. Christopher FLAHERTY
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Publication number: 20200139138Abstract: Provided is a medical apparatus for a patient comprising an external system and an implantable system. The external system can be configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system can be configured to receive the one or more transmission signals from the external system. The external system comprises a first external device comprising at least one external antenna configured to transmit a first transmission signal to the implantable system. The implantable system comprises a first implantable device comprising at least one implantable antenna configured to receive the first transmission signal from the first external device. At least one of the external antenna or implantable antenna comprises an antenna assembly comprising: at least one transmitting/receiving antenna; and at least one shielding element positioned between the at least one transmitting/receiving antenna and an interfering component.Type: ApplicationFiled: June 26, 2019Publication date: May 7, 2020Inventors: Ji-Jon SIT, Daniel M. PIVONKA
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Publication number: 20190009097Abstract: A stimulation system for a patient is provided. The system comprises: at least one implantable device comprising at least one implantable antenna; and an external device comprising at least one external antenna, wherein the at least one external antenna transfers power to the at least one implantable antenna. The at least one implantable device delivers therapy to the patient. A patient attachment device or body covering positions the at least one external antenna relative to the patient.Type: ApplicationFiled: August 24, 2018Publication date: January 10, 2019Inventors: Lee Fason HARTLEY, Christopher LINDEN, Daniel M. PIVONKA, Ji-Jon SIT, Lakshmi Narayan MISHRA, Logan PALMER, Brett Daniel SCHLEICHER, Mark David LONDBORG, James GOODMAN, James C. MAKOUS, Andre CASTILLO
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Patent number: 9468770Abstract: An exemplary cochlear implant includes a communication facility configured to receive at least a first data word and a second data word in series from a sound processor by way of a forward-telemetry link and a processing facility communicatively coupled to the communication facility and configured to 1) use the first data word to dynamically determine an address associated with an electrode by way of which a stimulation pulse is to be applied during a time slot of a stimulation frame and 2) use the second data word to determine an amplitude of the stimulation pulse that is to be applied by way of the electrode during the time slot of the stimulation frame. Corresponding systems and methods are also disclosed.Type: GrantFiled: July 13, 2012Date of Patent: October 18, 2016Assignee: Advanced Bionics AGInventors: Logan P. Palmer, Ji-Jon Sit
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Publication number: 20150328471Abstract: An exemplary cochlear implant includes a communication facility configured to receive at least a first data word and a second data word in series from a sound processor by way of a forward-telemetry link and a processing facility communicatively coupled to the communication facility and configured to 1) use the first data word to dynamically determine an address associated with an electrode by way of which a stimulation pulse is to be applied during a time slot of a stimulation frame and 2) use the second data word to determine an amplitude of the stimulation pulse that is to be applied by way of the electrode during the time slot of the stimulation frame. Corresponding systems and methods are also disclosed.Type: ApplicationFiled: July 13, 2012Publication date: November 19, 2015Applicant: ADVANCED BIONICS AGInventors: Logan P. Palmer, Ji-Jon Sit
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Patent number: 8000797Abstract: The present invention provides methods and systems for selecting one or more channels of a neural implant to stimulate. A channel selection unit is configured to asynchronously and stochastically select the winning channel or channels based, in part, on the richness of the input sensory environment. Thereafter, the channel selection unit reduces the likelihood that the selected channel or channels will be selected again for a period of time.Type: GrantFiled: June 7, 2006Date of Patent: August 16, 2011Assignees: Advanced Bionics, LLC, Massachusetts Institute of TechnologyInventors: Rahul Sarpeshkar, Michael A. Faltys, Ji-Jon Sit
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Patent number: 7126509Abstract: A logarithmic analog-to-digital converter system is disclosed. The system includes a transconductor for receiving an input signal and for producing a transconductor output signal at a transconductor output, a logarithmic circuit unit that is coupled to an input of the transconductor, a comparator amplifier for receiving the transconductor output signal and for producing a comparator amplifier output signal at a comparator amplifier output, and an integrating capacitor coupled to the transconductor output signal.Type: GrantFiled: July 2, 2004Date of Patent: October 24, 2006Assignee: Massachusetts Institute of TechnologyInventors: Ji-Jon Sit, Rahul Sarpeshkar
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Publication number: 20050024245Abstract: A logarithmic analog-to-digital converter system is disclosed. The system includes a transconductor for receiving an input signal and for producing a transconductor output signal at a transconductor output, a logarithmic circuit unit that is coupled to an input of the transconductor, a comparator amplifier for receiving the transconductor output signal and for producing a comparator amplifier output signal at a comparator amplifier output, and an integrating capacitor coupled to the transconductor output signal.Type: ApplicationFiled: July 2, 2004Publication date: February 3, 2005Inventors: Ji-Jon Sit, Rahul Sarpeshkar