Patents by Inventor Ion Opris

Ion Opris 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: 20200284679
    Abstract: Methods and devices to mitigate time varying impairments in sensors are described. The application of such methods and devices to pressure sensors facing time varying parasitic capacitances due to water droplets is detailed. Benefits of auto-zeroing technique as adopted in disclosed devices is also described.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 10, 2020
    Inventors: Vishnu Srinivasan, Ion Opris, Keith Bargroff
  • Publication number: 20200241323
    Abstract: An unobtrusive augmented reality (AR) system can be used to assist the wearer in every day interactions by projecting information from the contact lens display onto the retina of the wearer's eye. The unobtrusive augmented reality system includes a necklace and a contact lens display that are unobtrusive to the wearer and the wearer's surrounding environment. The necklace of the unobtrusive augmented reality system generates power and data for the contact lens displays. The necklace and contact lens display include conductive coils inductively coupled by a magnetic field. The inductive coupling allows data and power generated by the necklace to be transferred to the contact lens display. A projector in the contact lens display projects images generated from the data onto the retina of the wearers eye.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 30, 2020
    Inventors: Gregory David Miller, Brian Elliot Lemoff, Kuang-mon Ashley Tuan, Herbert John Kniess, Ion Opris, Michael West Wiemer, Drew Daniel Perkins
  • Publication number: 20200196867
    Abstract: Embodiments described herein relate to an implantable device that include an inductor coil, a storage capacitor, active circuitry, and a sensor, but doesn't include an electrochemical cell, and methods for use therewith. During first periods of time, the storage capacitor accumulates and stores energy received via the inductor coil from a non-implanted device. During second periods of time, interleaved with the first periods of time, and during which energy is not received from the non-implanted device, the active circuitry of the implantable device is powered by the energy stored on the storage capacitor and is used to perform at least one of a plurality of predetermined operations of the implantable device, including, e.g., obtaining a sensor measurement from the sensor of the implantable device, transmitting a communication signal including a sensor measurement to the non-implanted device, and/or receiving a communication signal from the non-implanted device.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Applicant: Pacesetter, Inc.
    Inventors: Dean Andersen, William Douglas Barrett, Jin-Woo Park, Philip M. Fitzsimons, Ion Opris, Eiji Shirai
  • Patent number: 10673414
    Abstract: An augmented reality system including a source and a contact lens display can be used to project information from the contact lens display onto the retina of the wearer's eye. The source provides energy to the contact lens display and operates at a source frequency. The source includes a source circuit including a conductive coil. The contact lens display includes a resonant circuit including another conductive coil and a capacitive circuit. The resonant circuit receives energy from the conductive coil of the source via a magnetic field inductively coupling the conductive coils. The contact lens display additionally includes a feedback circuit to adjust the capacitance of the capacitive circuit to control a resonant frequency of the resonant circuit. The feedback circuit can control the capacitive circuit to maintain the resonant frequency of the resonant circuit near the source frequency as the wearer's eye blinks.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: June 2, 2020
    Assignee: Tectus Corporation
    Inventors: Brian Elliot Lemoff, Gregory David Miller, Ion Opris, Hawk Yin Pang
  • Patent number: 10649233
    Abstract: An unobtrusive augmented reality (AR) system can be used to assist the wearer in every day interactions by projecting information from the contact lens display onto the retina of the wearer's eye. The unobtrusive augmented reality system includes a necklace and a contact lens display that are unobtrusive to the wearer and the wearer's surrounding environment. The necklace of the unobtrusive augmented reality system generates power and data for the contact lens displays. The necklace and contact lens display include conductive coils inductively coupled by a magnetic field. The inductive coupling allows data and power generated by the necklace to be transferred to the contact lens display. A projector in the contact lens display projects images generated from the data onto the retina of the wearers eye.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 12, 2020
    Assignee: Tectus Corporation
    Inventors: Gregory David Miller, Brian Elliot Lemoff, Kuang-mon Ashley Tuan, Herbert John Kniess, Ion Opris, Michael West Wiemer, Drew Daniel Perkins
  • Publication number: 20200129770
    Abstract: Certain embodiments of the present technology relate to temperature sensors for using in an implantable medical device, and methods for use therewith. Such a method can include alternating between producing a first base-to-emitter voltage drop (VBE1) and a second base-to-emitter voltage drop (VBE2), and alternating between using a capacitor to store the VBE1, which is complimentary to absolute temperature (CTAT), and using the same capacitor to store a ?VBE=VBE2?VBE1, which is proportion to absolute temperature (PTAT). The method also includes using a sigma-delta modulator that includes the capacitor to produce a signal having a duty cycle (dc) indicative of the ?VBE stored using the capacitor, and producing a temperature measurement based on the signal having the duty cycle (dc) indicative of the ?VBE.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 30, 2020
    Applicant: Pacesetter, Inc.
    Inventors: Ion Opris, Dean Andersen
  • Patent number: 10580349
    Abstract: An eye-mounted display includes a femtoprojector, which includes a backplane and a frontplane. The backplane receives data (e.g., data packets) that specify the image to be projected by the eye-mounted display. It converts this data to drive signals (e.g., current) to drive the frontplane. The frontplane contains an array of light emitters (e.g., LEDs) that produce light according to the drive signals, thus generating the desired image. In one approach, the image is deconstructed and transmitted to the backplane as needed as microframes which are displayed asynchronously and only for regions where the image has changed, rather than continuously scanning full picture frames at the full frame rate. In another aspect, the femtoprojector has variable pitch between adjacent light emitters.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: March 3, 2020
    Assignee: Tectus Corporation
    Inventors: Paul Scott Martin, Renaldi Winoto, Ion Opris, Mihai-Costin Manolescu
  • Publication number: 20190251893
    Abstract: An eye-mounted display includes a femtoprojector, which includes a backplane and a frontplane. The backplane receives data (e.g., data packets) that specify the image to be projected by the eye-mounted display. It converts this data to drive signals (e.g., current) to drive the frontplane. The frontplane contains an array of light emitters (e.g., LEDs) that produce light according to the drive signals, thus generating the desired image. In one approach, the image is deconstructed and transmitted to the backplane as needed as microframes which are displayed asynchronously and only for regions where the image has changed, rather than continuously scanning full picture frames at the full frame rate. In another aspect, the femtoprojector has variable pitch between adjacent light emitters.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 15, 2019
    Inventors: Paul Scott Martin, Renaldi Winoto, Ion Opris, Mihai-Costin Manolescu
  • Publication number: 20190245523
    Abstract: An augmented reality system including a source and a contact lens display can be used to project information from the contact lens display onto the retina of the wearer's eye. The source provides energy to the contact lens display and operates at a source frequency. The source includes a source circuit including a conductive coil. The contact lens display includes a resonant circuit including another conductive coil and a capacitive circuit. The resonant circuit receives energy from the conductive coil of the source via a magnetic field inductively coupling the conductive coils. The contact lens display additionally includes a feedback circuit to adjust the capacitance of the capacitive circuit to control a resonant frequency of the resonant circuit. The feedback circuit can control the capacitive circuit to maintain the resonant frequency of the resonant circuit near the source frequency as the wearer's eye blinks.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Inventors: Brian Elliot Lemoff, Gregory David Miller, Ion Opris, Hawk Yin Pang
  • Patent number: 10349161
    Abstract: A circuit for biasing a transducer including a first plate and a second plate includes a front-end buffer and a charge pump. The front-end buffer generates an internal signal at an internal node in response to a voltage signal of the second plate. The transducer receives the incident sound wave at the first plate to generate the voltage signal at the second plate. The charge pump boosts the internal signal into a boost voltage at the first plate according to a first clock signal.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 9, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Ion Opris, Abu Hena M Kamal, Ramesh Prakash, Lee Tay Chew
  • Patent number: 10250980
    Abstract: A digital microphone is provided. The digital microphone includes an acoustic sensor, a bias generator, first and second attenuators, a buffer, an amplifier, an ADC, and a controller. The acoustic sensor transfers an acoustic signal to a voltage signal. The bias generator provides a bias voltage to the acoustic sensor. The first attenuator attenuates the voltage signal by a first attenuation value. The buffer buffers the voltage signal to generate a buffered voltage signal. The amplifier amplifies the buffered voltage signal to generate an amplified signal. The ADC converts the amplified signal to a data signal with a digital format. The second attenuator attenuates the data signal by a second attenuation value. The controller determines whether the amplified signal is larger than a reference value and adjusts the bias voltage and the first and second attenuation values of the first and second attenuators according to the result determined by the controller.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: April 2, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Ion Opris, Abu Hena M Kamal, Lee Tay Chew, Ramesh Prakash, Shomo Chen, Qiang Wei, Lung-Chu Joseph Chen
  • Patent number: 10110121
    Abstract: A charge pump includes a first unidirectional conducting device, a flying capacitor, a second unidirectional conducting device, an output capacitor, a first switch, and a second switch. The first unidirectional conducting device unidirectionally couples a supply voltage to an internal node. The flying capacitor is coupled between the internal node and a clock signal. The second unidirectional conducting device unidirectionally couples the internal node to an output node. The output capacitor is coupled between the output node and a ground. The first switch couples a discharge node to the ground according to a discharge signal. The second switch couples the output node to the discharge node according to the voltage of the internal node.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 23, 2018
    Assignee: FORTEMEDIA, INC.
    Inventors: Ion Opris, Abu Hena M Kamal, Lee Tay Chew, Shomo Chen
  • Patent number: 10060757
    Abstract: This document provides apparatus and methods for cancelation of quadrature error from a micro-electromechanical system (MEMS) device, such as a MEMS gyroscope. In certain examples, a quadrature correction apparatus can include a drive charge-to-voltage (C2V) converter configured to provide drive information of a proof mass of a MEMS gyroscope, a sense C2V converter configured to provide sense information of the proof mass, a phase-shift module configured to provide phase shift information of the drive information, a drive demodulator configured to receive the drive information and the phase shift information and to provide demodulated drive information, a sense demodulator configured to receive the sense information and the phase shift information and to provide demodulated sense information, and wherein the quadrature correction apparatus is configured to provide corrected sense information using the demodulated drive information and the demodulated sense information.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: August 28, 2018
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Ion Opris, Hai Tao, Shungneng Lee
  • Publication number: 20180149884
    Abstract: An unobtrusive augmented reality (AR) system can be used to assist the wearer in every day interactions by projecting information from the contact lens display onto the retina of the wearer's eye. The unobtrusive augmented reality system includes a necklace and a contact lens display that are unobtrusive to the wearer and the wearer's surrounding environment. The necklace of the unobtrusive augmented reality system generates power and data for the contact lens displays. The necklace and contact lens display include conductive coils inductively coupled by a magnetic field. The inductive coupling allows data and power generated by the necklace to be transferred to the contact lens display. A projector in the contact lens display projects images generated from the data onto the retina of the wearers eye.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 31, 2018
    Inventors: Gregory David Miller, Brian Elliot Lemoff, Kuang-mon Ashley Tuan, Herbert John Kniess, Ion Opris, Michael West Wiemer, Drew Daniel Perkins
  • Publication number: 20180109180
    Abstract: A charge pump includes a first unidirectional conducting device, a flying capacitor, a second unidirectional conducting device, an output capacitor, a first switch, and a second switch. The first unidirectional conducting device unidirectionally couples a supply voltage to an internal node. The flying capacitor is coupled between the internal node and a clock signal. The second unidirectional conducting device unidirectionally couples the internal node to an output node. The output capacitor is coupled between the output node and a ground. The first switch couples a discharge node to the ground according to a discharge signal. The second switch couples the output node to the discharge node according to the voltage of the internal node.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 19, 2018
    Inventors: Ion OPRIS, Abu Hena M. KAMAL, Lee Tay CHEW, Shomo CHEN
  • Publication number: 20180109875
    Abstract: A digital microphone is provided. The digital microphone includes an acoustic sensor, a bias generator, first and second attenuators, a buffer, an amplifier, an ADC, and a controller. The acoustic sensor transfers an acoustic signal to a voltage signal. The bias generator provides a bias voltage to the acoustic sensor. The first attenuator attenuates the voltage signal by a first attenuation value. The buffer buffers the voltage signal to generate a buffered voltage signal. The amplifier amplifies the buffered voltage signal to generate an amplified signal. The ADC converts the amplified signal to a data signal with a digital format. The second attenuator attenuates the data signal by a second attenuation value. The controller determines whether the amplified signal is larger than a reference value and adjusts the bias voltage and the first and second attenuation values of the first and second attenuators according to the result determined by the controller.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 19, 2018
    Inventors: Ion OPRIS, Abu Hena M KAMAL, Lee Tay CHEW, Ramesh PRAKASH, Shomo CHEN, Qiang WEI, Lung-Chu Joseph CHEN
  • Publication number: 20180109869
    Abstract: A circuit for biasing a transducer including a first plate and a second plate includes a front-end buffer and a charge pump. The front-end buffer generates an internal signal at an internal node in response to a voltage signal of the second plate. The transducer receives the incident sound wave at the first plate to generate the voltage signal at the second plate. The charge pump boosts the internal signal into a boost voltage at the first plate according to a first clock signal.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 19, 2018
    Inventors: Ion OPRIS, Abu Hena M KAMAL, Ramesh PRAKASH, Lee Tay CHEW
  • Patent number: 9835647
    Abstract: Apparatus and methods for interfacing with a micro-electromechanical system (MEMS) sensor are provided. In an example, an apparatus can interface circuit including an integrator circuit, a sample switch circuit, a saturation detector and a controller. The saturation detector can be configured to receive a signal indicative of an integration of charge of the sensor, to compare the signal indicative of the integration of charge to an integrator saturation threshold and to modulate a divide parameter using the comparison of the signal indicative of the integration of charge and the integrator saturation threshold. The controller can be configured to receive a clock signal and to control the sample switch circuit based on a phase of the clock signal and the divide parameter.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: December 5, 2017
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Ion Opris, Justin Seng, Shanthi Pavan, Marwan Ashkar, Michelle Lee
  • Patent number: 9759564
    Abstract: This document discusses, among other things, a temperature and power supply calibration system configured to compensate for temperature and supply voltage variation in MEMS or other circuits using representations of positive and negative supply voltages and first and second base-emitter voltages, wherein the second base-emitter voltage is a scaled representation of the first base-emitter voltage.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 12, 2017
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Shungneng Lee, Justin Seng, Marwan Ashkar, Ion Opris
  • Patent number: 9679885
    Abstract: Disclosed are systems, devices, circuits, components, mechanisms, and processes in which a switching mechanism can be coupled between components. The switching mechanism is configured to have an on state or an off state, where the on state allows current to pass along a current path. A monitoring mechanism has one or more sensing inputs coupled to sense an electrical characteristic at the current path. The electrical characteristic can be a current, voltage, and/or power by way of example. The monitoring mechanism is configured to output a reporting signal indicating the sensed electrical characteristic. The monitoring mechanism can be integrated with the switching mechanism on a chip.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: June 13, 2017
    Assignee: Volterra Semiconductor Corporation
    Inventors: David Lidsky, Ognjen Djekic, Ion Opris, Budong You, Anthony J. Stratakos, Alexander Ikriannikov, Biljana Beronja, Trey Roessig