Patents by Inventor Butrus T. Khuri-Yakub

Butrus T. Khuri-Yakub 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: 20200254285
    Abstract: Features for high intensity focused ultrasound (HIFU) are described. The application of HIFU for ablating tissue may be monitored in real time by imaging bubbles generated during HIFU. A single transducer array may be used by fast switching between imaging and HIFU. For imaging, the array or portions thereof may be used in receive only mode to locate bubbles generated by the HIFU. The application of HIFU, such as location and/or intensity, may be adjusted based on information from the imaging of the bubbles. Physicians and/or others may use these systems and methods to monitor HIFU procedures in real-time for optimal ablation of target tissue with minimal damage to healthy tissue.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 13, 2020
    Inventors: Ji Hoon Jang, George Quintin Stedman, Morten Fischer Rasmussen, Arif Sanli Ergun, Butrus T. Khuri-Yakub
  • Publication number: 20200257874
    Abstract: Aspects of this disclosure relate to a biometric sensing device that combines sensing with an actuator for two way communication between a finger on a surface and the device. The sensor can also function as an actuator. A finger can be authenticated based on an image of the finger generated by the sensor and also based on a response to energy delivered to the finger by the actuator. Two way communication can provide more robust authentication than fingerprint sensing alone.
    Type: Application
    Filed: March 6, 2020
    Publication date: August 13, 2020
    Inventors: Butrus T. Khuri-Yakub, Morten Fischer Rasmussen, Gerard Touma, John N. Irwin, III
  • Publication number: 20200209029
    Abstract: Clamp-on ultrasonic flow metering is provided by collectively exciting and receiving circumferential modes of the pipe. The pipe wall supports an infinite number of circumferential acoustic resonances. Each of these modes, in contact with a fluid, can mode-convert into the flow at a different rate. The mode-converted waves in the flow mode-convert back into the circumferential waves in the pipe once they travel across the flow. Furthermore, the moving fluid alters the rate of mode-conversion as a function of the flow velocity. At low frequencies, the wavelength is larger, thus the penetration depth in the flow is larger. As the frequency increases, the penetration depth becomes smaller. The variable penetration depth provides a methodology to sample the flow velocity profile.
    Type: Application
    Filed: April 27, 2018
    Publication date: July 2, 2020
    Inventors: Kamyar Firouzi, Butrus T. Khuri-Yakub
  • Patent number: 10691912
    Abstract: Aspects of this disclosure relate to a biometric sensing device that includes a sensing device and an integrated optical system for authentication. For instance, the sensing device can be an ultrasonic sensing device that can generate an image of a fingerprint and the optical system can transmit light to a finger through the ultrasonic scanning device. In some instances, the acoustic biometric sensing device can generate a liveness parameter associated with a finger based on a reflection of the light.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 23, 2020
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Orchid Sound Technologies LLC
    Inventors: Butrus T. Khuri-Yakub, Morten Fischer Rasmussen, Gerard Touma, John N. Irwin, III
  • Publication number: 20200175241
    Abstract: An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.
    Type: Application
    Filed: October 23, 2019
    Publication date: June 4, 2020
    Inventors: Morten Fischer Rasmussen, Gerard Touma, Butrus T. Khuri-Yakub
  • Patent number: 10592718
    Abstract: Aspects of this disclosure relate to a biometric sensing device that combines sensing with an actuator for two way communication between a finger on a surface and the device. The sensor can also function as an actuator. A finger can be authenticated based on an image of the finger generated by the sensor and also based on a response to energy delivered to the finger by the actuator. Two way communication can provide more robust authentication than fingerprint sensing alone.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 17, 2020
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Orchid Sound Technologies LLC
    Inventors: Butrus T. Khuri-Yakub, Morten Fischer Rasmussen, Gerard Touma, John N. Irwin, III
  • Publication number: 20200056917
    Abstract: Propagation of leaky Lamb waves in pipe walls is used to provide a clamp-on acoustic flow meter for single-phase fluid flow in pipes. The received acoustic signals can be analyzed analytically, or by matching to numerical models, or with machine learning. In a preferred embodiment, variation of penetration depth of the leaky Lamb waves into the fluid flow with frequency provides an approach for measuring flow rate vs. radius with a clamp-on flow meter.
    Type: Application
    Filed: May 3, 2018
    Publication date: February 20, 2020
    Inventors: Kamyar Firouzi, Butrus T. Khuri-Yakub
  • Patent number: 10489627
    Abstract: An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: November 26, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Morten Fischer Rasmussen, Gerard Touma, Butrus T. Khuri-Yakub
  • Publication number: 20190258841
    Abstract: An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventors: Morten Fischer Rasmussen, Gerard Touma, Butrus T. Khuri-Yakub
  • Publication number: 20190087621
    Abstract: Aspects of this disclosure relate to a biometric sensing device that includes a sensing device and an integrated optical system for authentication. For instance, the sensing device can be an ultrasonic sensing device that can generate an image of a fingerprint and the optical system can transmit light to a finger through the ultrasonic scanning device. In some instances, the acoustic biometric sensing device can generate a liveness parameter associated with a finger based on a reflection of the light.
    Type: Application
    Filed: August 7, 2018
    Publication date: March 21, 2019
    Inventors: Butrus T. Khuri-Yakub, Morten Fischer Rasmussen, Gerard Touma, John N. Irwin, III
  • Publication number: 20190076674
    Abstract: A medical device includes a capacitive micromachined ultrasonic transducer (CMUT) array configured to emit ultrasound to target tissue, and at least one thermoelectric cooler mechanically coupled with the CMUT array and configured to cool non-target tissue heated by the ultrasound. The medical device may be implemented in a catheter together with a solid thermal conductor coupled to the thermoelectric cooler and extending along the catheter, to conduct heat away from the thermoelectric cooler. A catheter or catheter sleeve includes a tubular wall for insertion into a body channel, and at least one thermoelectric cooler coupled to the tubular wall for cooling the body channel wall. A catheter sleeve includes tubular casing for insertion into a body channel and capable of encasing a catheter, and at least one sensor coupled to the tubular casing for sensing one or more properties of the body channel wall, such as temperature and pressure.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 14, 2019
    Inventors: Arif Sanli Erg√ľn, Andre Khoury, Butrus T. Khuri-Yakub, John N. Irwin, III
  • Publication number: 20190076130
    Abstract: Ultrasound imaging and therapy with the same array of capacitive micromachined ultrasonic transducers is provided. The electronics includes a per-pixel switch for each transducer element. The switches provide an imaging mode driven completely by on-chip electronics and a therapy mode where off-chip pulsers provide relatively high voltages to the transducer elements.
    Type: Application
    Filed: October 2, 2018
    Publication date: March 14, 2019
    Inventors: Anshuman Bhuyan, Jung Woo Choe, Amin Nikoozadeh, Butrus T. Khuri-Yakub
  • Publication number: 20190050618
    Abstract: Aspects of this disclosure relate to a biometric sensing device that combines sensing with an actuator for two way communication between a finger on a surface and the device. The sensor can also function as an actuator. A finger can be authenticated based on an image of the finger generated by the sensor and also based on a response to energy delivered to the finger by the actuator. Two way communication can provide more robust authentication than fingerprint sensing alone.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Inventors: Butrus T. Khuri-Yakub, Morten Fischer Rasmussen, Gerard Touma, John N. Irwin, III
  • Publication number: 20190015070
    Abstract: Improved localization of the capsule in acoustic capsule endoscopy is provided by using analysis of the frames of the acoustic images to deduce the relative motion of the capsule from frame to frame. This idea can be supplemented with any combination of: further localization methods; propulsion of the capsule via acoustic radiation reaction; bidirectional communication and system level feedback control; energy harvesting; photoacoustic (or x-ray acoustic) imaging; and adding therapy and/or sensor capabilities to the capsule.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Inventors: Farah Memon, Junyi Wang, Gerard Touma, Spyridon G. Baltsavias, Chienliu Chang, Morten F. Rasmussen, Mohammad Amin Arbabian, Butrus T. Khuri-Yakub, R. Brooke Jeffrey, JR., Amin Nikoozadeh, Jung Woo Choe, Eric Olcott, Arif Sanli Ergun
  • Publication number: 20180357457
    Abstract: An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.
    Type: Application
    Filed: March 30, 2018
    Publication date: December 13, 2018
    Inventors: Morten Fischer Rasmussen, Gerard Touma, Butrus T. Khuri-Yakub
  • Patent number: 10123782
    Abstract: Ultrasound imaging and therapy with the same array of capacitive micromachined ultrasonic transducers is provided. The electronics includes a per-pixel switch for each transducer element. The switches provide an imaging mode driven completely by on-chip electronics and a therapy mode where off-chip pulsers provide relatively high voltages to the transducer elements.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: November 13, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Anshuman Bhuyan, Jung Woo Choe, Amin Nikoozadeh, Butrus T. Khuri-Yakub
  • Publication number: 20180280735
    Abstract: We provide a novel technique for coupling focused ultrasound into the brain. The ultrasound beam can be used for therapy or neuro-modulation. We excite a selected Lamb wave mode in the skull that mode converts into longitudinal waves in the brain. The benefits of our approach is in improved efficiency, reduction in heating of the skull, and the ability to address regions in the brain that are close or far from the skull.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: Butrus T. Khuri-Yakub, Kamyar Firouzi
  • Patent number: 9953205
    Abstract: An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 24, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Morten Fischer Rasmussen, Gerard Touma, Butrus T. Khuri-Yakub
  • Publication number: 20180101255
    Abstract: A method of multi-touch detection on a touchscreen by imparting Lamb waves inside a touchscreen, using a first ultrasound transducer having a polarization direction positioned to excite lowest order symmetric Lamb waves (S0), detecting the S0 Lamb waves, using a second ultrasound transducer, where the transducers are connected to the touchscreen, controlling the transducers to selectively and repeatedly pulse the output S0 Lamb waves output to propagate the S0 Lamb waves inside the touchscreen and reflect from each edge of the touchscreen to form a base signal distribution of S0 reverberant Lamb waves across the touchscreen, where a single or a multi-touch perturbation in the reverberant Lamb waves absorbs a portion of the base signal, where the absorption forms an alteration in the base signal and is seen as a signal variation by the controller when received by the second ultrasound transducer, where the controller identifies and locates the perturbation.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 12, 2018
    Inventors: Butrus T. Khuri-Yakub, Kamyar Firouzi, Amin Nikoozadeh
  • Patent number: 9774277
    Abstract: As may be implemented in accordance with one or more embodiments, an apparatus and/or method involves a plurality of transducer elements that convert energy waves conveyed via a multi-directional radiation pattern into electrical charge. A power-accumulation circuit accumulates electrical charges from each of the plurality of transducer elements, with each of the transducer elements being arranged at different respective off-axis angles relative to an axis at which the energy is being conveyed. The power-accumulation circuit accumulates energy from each of the individual energy-transduction areas, such that energy received at different respective off-axis angles contributes to the accumulation of electrical charge.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: September 26, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Butrus T. Khuri-Yakub, Omer Oralkan