Patents by Inventor James SALVIA
James SALVIA 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: 11950934Abstract: Described herein is a front-end for a neural recording system that boosts input impedance of the front-end circuit. The front-end includes an amplifier and two choppers. A first input terminal of the first chopper may be coupled to a first output terminal from one or more signal sensors. A first input terminal of the second chopper may be coupled to a second output terminal from the signal sensors. A second input terminal of the first chopper may be coupled to a first output terminal of a feedback subsystem. A second input terminal of the second chopper may be coupled to a second output terminal of the feedback subsystem. The output terminals of each chopper may each be coupled to a different capacitor such that after switching, the voltage of each capacitor remains substantially the same, improving the input impedance of the circuit.Type: GrantFiled: June 17, 2020Date of Patent: April 9, 2024Assignee: VERILY LIFE SCIENCES LLCInventors: Ahmed Elmallah, James Salvia
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Patent number: 11924645Abstract: Described herein are techniques to ensure a user using an external device is authorized to connect and connecting to a correct implantable medical device using a wireless communication protocol. A request for authorization is sent to the external device from the implantable medical device, and the authorization can be provided by an authorization pulse sent using the implantable medical device charger over the inductive link between the charging device and the implanted device. The authorization pulse can be trusted because the inductive link is short range, ensuring the patient is aware of the connection to the implanted device. Once the implanted device receives the authorization pulse, it may finalize the pairing over the first connection.Type: GrantFiled: May 13, 2020Date of Patent: March 5, 2024Assignee: VERILY LIFE SCIENCES LLCInventors: Michael Andrew Caruso, Adam Bildersee, Nehal Patel, James Salvia, Arvind Govindaraj
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Publication number: 20230115589Abstract: Differential charge-balancing can be used in high-frequency neural stimulation. For example, a neural stimulation apparatus can have first and second electrodes configured to be coupled proximate to a nerve fiber to implement a neural stimulation procedure. A neural stimulation circuit can be electrically coupled to the first and second electrodes. The neural stimulation circuit can apply stimulation currents to the nerve fiber through the first and second electrodes during a first stimulation phase of the neural stimulation procedure. The neural stimulation circuit can also apply a modified stimulation current to the nerve fiber through the first electrode during a second stimulation phase of the neural stimulation procedure. The modified stimulation current can be generated based on a difference between (i) a voltage at the first electrode, and (ii) a reference voltage derived from voltages on the first and second electrodes.Type: ApplicationFiled: December 13, 2022Publication date: April 13, 2023Applicant: Verily Life Sciences LLCInventors: James Salvia, Meisam Heidarpour Roshan
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Patent number: 11547856Abstract: Differential charge-balancing can be used in high-frequency neural stimulation. For example, a neural stimulation apparatus can have first and second electrodes configured to be coupled proximate to a nerve fiber to implement a neural stimulation procedure. A neural stimulation circuit can be electrically coupled to the first and second electrodes. The neural stimulation circuit can apply stimulation currents to the nerve fiber through the first and second electrodes during a first stimulation phase of the neural stimulation procedure. The neural stimulation circuit can also apply a modified stimulation current to the nerve fiber through the first electrode during a second stimulation phase of the neural stimulation procedure. The modified stimulation current can be generated based on a difference between (i) a voltage at the first electrode, and (ii) a reference voltage derived from voltages on the first and second electrodes.Type: GrantFiled: September 10, 2019Date of Patent: January 10, 2023Assignee: VERILY LIFE SCIENCES LLCInventors: James Salvia, Meisam Heidarpour Roshan
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Publication number: 20200367055Abstract: Described herein are techniques to ensure a user using an external device is authorized to connect and connecting to a correct implantable medical device using a wireless communication protocol. A request for authorization is sent to the external device from the implantable medical device, and the authorization can be provided by an authorization pulse sent using the implantable medical device charger over the inductive link between the charging device and the implanted device. The authorization pulse can be trusted because the inductive link is short range, ensuring the patient is aware of the connection to the implanted device. Once the implanted device receives the authorization pulse, it may finalize the pairing over the first connection.Type: ApplicationFiled: May 13, 2020Publication date: November 19, 2020Applicant: Verily Life Sciences LLCInventors: Michael Andrew Caruso, Adam Bildersee, Nehal Patel, James Salvia, Arvind Govindaraj
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Publication number: 20200078592Abstract: Differential charge-balancing can be used in high-frequency neural stimulation. For example, a neural stimulation apparatus can have first and second electrodes configured to be coupled proximate to a nerve fiber to implement a neural stimulation procedure. A neural stimulation circuit can be electrically coupled to the first and second electrodes. The neural stimulation circuit can apply stimulation currents to the nerve fiber through the first and second electrodes during a first stimulation phase of the neural stimulation procedure. The neural stimulation circuit can also apply a modified stimulation current to the nerve fiber through the first electrode during a second stimulation phase of the neural stimulation procedure. The modified stimulation current can be generated based on a difference between (i) a voltage at the first electrode, and (ii) a reference voltage derived from voltages on the first and second electrodes.Type: ApplicationFiled: September 10, 2019Publication date: March 12, 2020Applicant: Verily Life Sciences LLCInventors: James Salvia, Meisam Heidarpour Roshan
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Patent number: 10587969Abstract: A method and circuit for testing an acoustic sensor are disclosed. In a first aspect, the method comprises using electro-mechanical features of the acoustic sensor to measure characteristic of the acoustic sensor. In a second aspect, the method comprises utilizing an actuation signal to evaluate mechanical characteristics of the acoustic sensor. In a third aspect, the method comprises using a feedthrough cancellation system to measure a capacitance of the acoustic sensor. In the fourth aspect, the circuit comprises a mechanism for driving an electrical signal into a signal path of the acoustic sensor to cancel an electrical feedthrough signal provided to the signal path, wherein any of the electrical signal and the electrical feedthrough signal are within or above an audio range.Type: GrantFiled: May 17, 2017Date of Patent: March 10, 2020Assignee: INVENSENSE, INC.Inventors: James Salvia, Baris Cagdaser, Aleksey S. Khenkin
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Publication number: 20170251316Abstract: A method and circuit for testing an acoustic sensor are disclosed. In a first aspect, the method comprises using electro-mechanical features of the acoustic sensor to measure characteristic of the acoustic sensor. In a second aspect, the method comprises utilizing an actuation signal to evaluate mechanical characteristics of the acoustic sensor. In a third aspect, the method comprises using a feedthrough cancellation system to measure a capacitance of the acoustic sensor. In the fourth aspect, the circuit comprises a mechanism for driving an electrical signal into a signal path of the acoustic sensor to cancel an electrical feedthrough signal provided to the signal path, wherein any of the electrical signal and the electrical feedthrough signal are within or above an audio range.Type: ApplicationFiled: May 17, 2017Publication date: August 31, 2017Inventors: James SALVIA, Baris CAGDASER, Aleksey S. KHENKIN
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Patent number: 9661433Abstract: A method and circuit for testing an acoustic sensor are disclosed. In a first aspect, the method comprises using electro-mechanical features of the acoustic sensor to measure characteristic of the acoustic sensor. In a second aspect, the method comprises utilizing an actuation signal to evaluate mechanical characteristics of the acoustic sensor. In a third aspect, the method comprises using a feedthrough cancellation system to measure a capacitance of the acoustic sensor. In the fourth aspect, the circuit comprises a mechanism for driving an electrical signal into a signal path of the acoustic sensor to cancel an electrical feedthrough signal provided to the signal path, wherein any of the electrical signal and the electrical feedthrough signal are within or above an audio range.Type: GrantFiled: January 30, 2014Date of Patent: May 23, 2017Assignee: INVENSENSE, INC.Inventors: James Salvia, Baris Cagdaser, Aleksey S. Khenkin
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Patent number: 9451359Abstract: Systems and techniques for processing a signal associated with a microphone are presented. The system includes a microphone component and a preamplifier. The microphone component is contained in a housing. The preamplifier includes an input buffer that receives a signal generated by the microphone component. The input buffer also generates an output signal that comprises a direct current (DC) voltage offset in comparison to the signal, where the preamplifier controls a degree of the DC voltage offset based on a control signal.Type: GrantFiled: November 25, 2014Date of Patent: September 20, 2016Assignee: INVENSENSE, INC.Inventors: Igor Mucha, Tomá{hacek over (s)} Piták, James Salvia, Baris Cagdaser
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Publication number: 20160149542Abstract: Systems and techniques for processing a signal associated with a microphone are presented. The system includes a microphone component and a preamplifier. The microphone component is contained in a housing. The preamplifier includes an input buffer that receives a signal generated by the microphone component. The input buffer also generates an output signal that comprises a direct current (DC) voltage offset in comparison to the signal, where the preamplifier controls a degree of the DC voltage offset based on a control signal.Type: ApplicationFiled: November 25, 2014Publication date: May 26, 2016Inventors: Igor Mucha, Tomás Piták, James Salvia, Baris Cagdaser
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Publication number: 20150289073Abstract: A method and circuit for testing an acoustic sensor are disclosed. In a first aspect, the method comprises using electro-mechanical features of the acoustic sensor to measure characteristic of the acoustic sensor. In a second aspect, the method comprises utilizing an actuation signal to evaluate mechanical characteristics of the acoustic sensor. In a third aspect, the method comprises using a feedthrough cancellation system to measure a capacitance of the acoustic sensor. In the fourth aspect, the circuit comprises a mechanism for driving an electrical signal into a signal path of the acoustic sensor to cancel an electrical feedthrough signal provided to the signal path, wherein any of the electrical signal and the electrical feedthrough signal are within or above an audio range.Type: ApplicationFiled: January 30, 2014Publication date: October 8, 2015Applicant: InvenSense, Inc.Inventors: James SALVIA, Baris CAGDASER, Aleksey S. KHENKIN