Patents by Inventor Edwin C. Kan

Edwin C. Kan 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).

  • Patent number: 12290338
    Abstract: The present disclosure may be embodied as methods and/or systems for non-contact measuring of an on-body and/or inside-body motion of an individual. A sensing signal is provided within a near-field coupling range of a motion to be measured. In this way, a measurement signal may be generated as the sensing signal modulated by the motion. The sensing signal may be an ID-modulated signal. In some embodiments, the sensing signal is a backscattered RFID link provided a wireless tag. A downlink signal may be provided to power the wireless tag. The sensing signal may be a harmonic of the downlink signal. The measurement signal is detected. The motion is measured based on the measurement signal. The measurement signal may be detected as far-field radiation after transmission through a source of the motion. The measurement signal may be detected as reflected from a source of the motion as antenna reflection.
    Type: Grant
    Filed: July 21, 2023
    Date of Patent: May 6, 2025
    Assignee: Cornell University
    Inventors: Xiaonan Hui, Edwin C. Kan
  • Patent number: 11922250
    Abstract: The present disclosure provides collaborative radiofrequency identification (RFID) readers that employ code division multiple access (CDMA) encoding to simultaneously broadcast to and read responses from tags in an overlapping reading zone with improved data synchronization and read yield rates. In some embodiments, a harmonic backscattering scheme is used to enable the system to have a much higher signal-to-noise ratio (SNR) and sensitivity, while the reader CDMA protocol can be integrated with an initial TDMA polling process or alternative tag CDMA scheme.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: March 5, 2024
    Assignee: Cornell University
    Inventors: Edwin C. Kan, Xiaonan Hui
  • Patent number: 11914018
    Abstract: A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered front the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: February 27, 2024
    Assignee: Cornell University
    Inventors: Xiaonan Hui, Edwin C. Kan
  • Publication number: 20230371823
    Abstract: The present disclosure may be embodied as methods and/or systems for non-contact measuring of an on-body and/or inside-body motion of an individual. A sensing signal is provided within a near-field coupling range of a motion to be measured. In this way, a measurement signal may be generated as the sensing signal modulated by the motion. The sensing signal may be an ID-modulated signal. In some embodiments, the sensing signal is a backscattered RFID link provided a wireless tag. A downlink signal may be provided to power the wireless tag. The sensing signal may be a harmonic of the downlink signal. The measurement signal is detected. The motion is measured based on the measurement signal. The measurement signal may be detected as far-field radiation after transmission through a source of the motion. The measurement signal may be detected as reflected from a source of the motion as antenna reflection.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 23, 2023
    Inventors: Xiaonan Hui, Edwin C. Kan
  • Publication number: 20230293049
    Abstract: Methods and systems are provided for monitoring respiration of an individual. A first radiofrequency (“RF”) sensing signal is provided within a near-field coupling range of a respiratory motion to be measured to generate a respiratory measurement signal as the first RF sensing signal modulated by the respiratory motion. A respiratory measurement signal is detected. The respiratory motion is measured based on the respiratory measurement signal. A respiratory event is detected using the measured respiratory motion. In some embodiments, the method further includes predicting a respiratory event of the individual using a machine learning classifier. The machine learning classifier may be trained using one or more respiratory features and/or one or more blood oxygen features.
    Type: Application
    Filed: July 28, 2021
    Publication date: September 21, 2023
    Inventors: Julianne Imperato-McGinley, Ana C. Krieger, Edwin C. Kan
  • Patent number: 11744470
    Abstract: The present disclosure may be embodied as methods and/or systems for non-contact measuring of an on-body and/or inside-body motion of an individual. A sensing signal is provided within a near-field coupling range of a motion to be measured. In this way, a measurement signal may be generated as the sensing signal modulated by the motion. The sensing signal may be an ID-modulated signal. In some embodiments, the sensing signal is a backscattered RFID link provided a wireless tag. A downlink signal may be provided to power the wireless tag. The sensing signal may be a harmonic of the downlink signal. The measurement signal is detected. The motion is measured based on the measurement signal. The measurement signal may be detected as far-field radiation after transmission through a source of the motion. The measurement signal may be detected as reflected from a source of the motion as antenna reflection.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 5, 2023
    Assignee: Cornell University
    Inventors: Xiaonan Hui, Edwin C. Kan
  • Publication number: 20220413082
    Abstract: A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered front the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 29, 2022
    Inventors: Xiaonan Hui, Edwin C. Kan
  • Patent number: 11519996
    Abstract: A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered from the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to a downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: December 6, 2022
    Assignee: Cornell University
    Inventors: Xiaonan Hui, Edwin C. Kan
  • Publication number: 20220318525
    Abstract: The present disclosure provides collaborative radiofrequency identification (RFID) readers that employ code division multiple access (CDMA) encoding to simultaneously broadcast to and read responses from tags in an overlapping reading zone with improved data synchronization and read yield rates. In some embodiments, a harmonic backscattering scheme is used to enable the system to have a much higher signal-to-noise ratio (SNR) and sensitivity, while the reader CDMA protocol can be integrated with an initial TDMA polling process or alternative tag CDMA scheme.
    Type: Application
    Filed: June 13, 2022
    Publication date: October 6, 2022
    Inventors: Edwin C. Kan, Xiaonan Hui
  • Patent number: 11392782
    Abstract: The present disclosure provides collaborative radiofrequency identification (RFID) readers that employ code division multiple access (CDMA) encoding to simultaneously broadcast to and read responses from tags in an overlapping reading zone with improved data synchronization and read yield rates. In some embodiments, a harmonic backscattering scheme is used to enable the system to have a much higher signal-to-noise ratio (SNR) and sensitivity, while the reader CDMA protocol can be integrated with an initial TDMA polling process or alternative tag CDMA scheme.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: July 19, 2022
    Assignee: CORNELL UNIVERSITY
    Inventors: Edwin C. Kan, Xiaonan Hui
  • Publication number: 20220175254
    Abstract: Near-field coherent sensing (NCS) methods and systems are described herein. The techniques may be used to monitor vital signs is introduced herein. Multiple-input, multiple output near-field techniques may be used to characterize motion. In some embodiments, the methods and systems are used to measure cardiac motion. In some embodiments, the disclosed system is integrated into a seat, such as, for example, a car seat. The system be configured to monitor the vital signs of a seat occupant with multiple sensing points. The sensor can be integrated into the cushion and hence “invisible” to the user.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 9, 2022
    Inventors: Xiaonan HUI, Edwin C. KAN
  • Publication number: 20210373111
    Abstract: A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered from the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to a downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal.
    Type: Application
    Filed: October 31, 2019
    Publication date: December 2, 2021
    Inventors: Xiaonan HUI, Edwin C. KAN
  • Publication number: 20210279433
    Abstract: The present disclosure provides collaborative radiofrequency identification (RFID) readers that employ code division multiple access (CDMA) encoding to simultaneously broadcast to and read responses from tags in an overlapping reading zone with improved data synchronization and read yield rates. In some embodiments, a harmonic backscattering scheme is used to enable the system to have a much higher signal-to-noise ratio (SNR) and sensitivity, while the reader CDMA protocol can be integrated with an initial TDMA polling process or alternative tag CDMA scheme.
    Type: Application
    Filed: May 14, 2019
    Publication date: September 9, 2021
    Applicant: Cornell University
    Inventors: Edwin C. KAN, Xiaonan HUI
  • Patent number: 10962501
    Abstract: A floating gate based sensor apparatus includes at least two separate electrical bias components with respect to a floating gate based sensor surface within the floating gate based sensor apparatus. By including the at least two electrical bias components, the floating gate based sensor apparatus provides enhanced capabilities for biomaterial and non-biomaterial detection and manipulation while using the floating gate based sensor apparatus.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 30, 2021
    Assignee: Cornell University
    Inventors: Krishna Jayant, Edwin C. Kan
  • Publication number: 20200170514
    Abstract: The present disclosure may be embodied as methods and/or systems for non-contact measuring of an on-body and/or inside-body motion of an individual. A sensing signal is provided within a near-field coupling range of a motion to be measured. In this way, a measurement signal may be generated as the sensing signal modulated by the motion. The sensing signal may be an ID-modulated signal. In some embodiments, the sensing signal is a backscattered RFID link provided a wireless tag. A downlink signal may be provided to power the wireless tag. The sensing signal may be a harmonic of the downlink signal. The measurement signal is detected. The motion is measured based on the measurement signal. The measurement signal may be detected as far-field radiation after transmission through a source of the motion. The measurement signal may be detected as reflected from a source of the motion as antenna reflection.
    Type: Application
    Filed: June 18, 2018
    Publication date: June 4, 2020
    Inventors: Xiaonan HUI, Edwin C. KAN
  • Publication number: 20200132620
    Abstract: A floasting gate based sensor apparatus includes at least two separate electrical bias components with respect to a floating gate based sensor surface within the floating gate based sensor apparatus. By including the at least two electrical bias components, the floating gate based sensor apparatus provides enhanced capabilities for biomaterial and non-biomaterial detection and manipulation while using the floating gate based sensor apparatus.
    Type: Application
    Filed: June 3, 2019
    Publication date: April 30, 2020
    Inventors: Krishna Jayant, Edwin C. Kan
  • Patent number: 10309924
    Abstract: A floating gate based sensor apparatus includes at least two separate electrical bias components with respect to a floating gate based sensor surface within the floating gate based sensor apparatus. By including the at least two electrical bias components, the floating gate based sensor apparatus provides enhanced capabilities for biomaterial and non-biomaterial detection and manipulation while using the floating gate based sensor apparatus.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: June 4, 2019
    Assignee: Cornell University
    Inventors: Krishna Jayant, Edwin C. Kan
  • Patent number: 10078462
    Abstract: Methods and system for providing a security function, such as random number generation, fingerprinting and data hiding, using a Flash memory. The methods and systems do not require carefully design specific circuits, can be implemented in all flash memory device. The fingerprinting methods and systems do not require a long time to generate a read and the data hiding is decoupled from Flash memory content.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: September 18, 2018
    Assignee: CORNELL UNIVERSITY
    Inventors: Yinglei Wang, Wing-kei Yu, Edwin C. Kan, Gookwon E. Suh
  • Publication number: 20160131613
    Abstract: A floating gate based sensor apparatus includes at least two a separate electrical bias components with respect to a floating gate based sensor surface within the floating gate based sensor apparatus. By including the at least two electrical bias components, the floating gate based sensor apparatus provides enhanced capabilities for biomaterial and non-biomaterial detection and manipulation while using the floating gate based sensor apparatus.
    Type: Application
    Filed: June 9, 2014
    Publication date: May 12, 2016
    Applicant: CORNELL UNIVERSITY
    Inventors: Krishna Jayant, Edwin C. Kan
  • Patent number: 9219166
    Abstract: Embodiments of tunneling barriers and methods for same can embed molecules exhibiting a monodispersion characteristic into a dielectric layer (e.g., between first and second layers forming a dielectric layer). In one embodiment, by embedding C60 molecules inbetween first and second insulating layers forming a dielectric layer, a field sensitive tunneling barrier can be implemented. In one embodiment, the tunneling barrier can be between a floating gate and a channel in a semiconductor structure. In one embodiment, a tunneling film can be used in nonvolatile memory applications where C60 provides accessible energy levels to prompt resonant tunneling through the dielectric layer upon voltage application. Embodiments also contemplate engineered fullerene molecules incorporated within the context of at least one of a tunneling dielectric and a floating gate within a nonvolatile flash memory structure.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 22, 2015
    Assignee: CORNELL UNIVERSITY
    Inventors: Edwin C. Kan, Qianying Xu, Ramesh Sivarajan, Henning Richter, Viktor Vejins