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).
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Patent number: 12290338Abstract: 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: GrantFiled: July 21, 2023Date of Patent: May 6, 2025Assignee: Cornell UniversityInventors: Xiaonan Hui, Edwin C. Kan
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Patent number: 11922250Abstract: 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: GrantFiled: June 13, 2022Date of Patent: March 5, 2024Assignee: Cornell UniversityInventors: Edwin C. Kan, Xiaonan Hui
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Patent number: 11914018Abstract: 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: GrantFiled: August 31, 2022Date of Patent: February 27, 2024Assignee: Cornell UniversityInventors: Xiaonan Hui, Edwin C. Kan
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Publication number: 20230371823Abstract: 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: ApplicationFiled: July 21, 2023Publication date: November 23, 2023Inventors: Xiaonan Hui, Edwin C. Kan
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Publication number: 20230293049Abstract: 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: ApplicationFiled: July 28, 2021Publication date: September 21, 2023Inventors: Julianne Imperato-McGinley, Ana C. Krieger, Edwin C. Kan
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Patent number: 11744470Abstract: 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: GrantFiled: June 18, 2018Date of Patent: September 5, 2023Assignee: Cornell UniversityInventors: Xiaonan Hui, Edwin C. Kan
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Publication number: 20220413082Abstract: 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: ApplicationFiled: August 31, 2022Publication date: December 29, 2022Inventors: Xiaonan Hui, Edwin C. Kan
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Patent number: 11519996Abstract: 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: GrantFiled: October 31, 2019Date of Patent: December 6, 2022Assignee: Cornell UniversityInventors: Xiaonan Hui, Edwin C. Kan
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Publication number: 20220318525Abstract: 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: ApplicationFiled: June 13, 2022Publication date: October 6, 2022Inventors: Edwin C. Kan, Xiaonan Hui
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Patent number: 11392782Abstract: 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: GrantFiled: May 14, 2019Date of Patent: July 19, 2022Assignee: CORNELL UNIVERSITYInventors: Edwin C. Kan, Xiaonan Hui
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Publication number: 20220175254Abstract: 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: ApplicationFiled: March 26, 2020Publication date: June 9, 2022Inventors: Xiaonan HUI, Edwin C. KAN
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Publication number: 20210373111Abstract: 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: ApplicationFiled: October 31, 2019Publication date: December 2, 2021Inventors: Xiaonan HUI, Edwin C. KAN
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Publication number: 20210279433Abstract: 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: ApplicationFiled: May 14, 2019Publication date: September 9, 2021Applicant: Cornell UniversityInventors: Edwin C. KAN, Xiaonan HUI
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Patent number: 10962501Abstract: 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: GrantFiled: June 3, 2019Date of Patent: March 30, 2021Assignee: Cornell UniversityInventors: Krishna Jayant, Edwin C. Kan
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Publication number: 20200170514Abstract: 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: ApplicationFiled: June 18, 2018Publication date: June 4, 2020Inventors: Xiaonan HUI, Edwin C. KAN
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Publication number: 20200132620Abstract: 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: ApplicationFiled: June 3, 2019Publication date: April 30, 2020Inventors: Krishna Jayant, Edwin C. Kan
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Patent number: 10309924Abstract: 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: GrantFiled: June 9, 2014Date of Patent: June 4, 2019Assignee: Cornell UniversityInventors: Krishna Jayant, Edwin C. Kan
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Patent number: 10078462Abstract: 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: GrantFiled: May 17, 2013Date of Patent: September 18, 2018Assignee: CORNELL UNIVERSITYInventors: Yinglei Wang, Wing-kei Yu, Edwin C. Kan, Gookwon E. Suh
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Publication number: 20160131613Abstract: 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: ApplicationFiled: June 9, 2014Publication date: May 12, 2016Applicant: CORNELL UNIVERSITYInventors: Krishna Jayant, Edwin C. Kan
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Patent number: 9219166Abstract: 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: GrantFiled: December 23, 2013Date of Patent: December 22, 2015Assignee: CORNELL UNIVERSITYInventors: Edwin C. Kan, Qianying Xu, Ramesh Sivarajan, Henning Richter, Viktor Vejins