Patents by Inventor Chris Xu

Chris Xu 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: 11956198
    Abstract: In some aspects, the techniques described herein relate to a method including: receiving, by a computing device, a message corresponding to a user inbox and to be added to the user inbox; applying, by the computing device, prior to adding the message to the user inbox, a message classification model to content of the message to determine one or more classifications corresponding to the message; determining, by the computing device, that the message is an important message based on whether one or more of the classifications is one of a set of predetermined classifications; adding, by the computing device, metadata to the message, the added metadata indicating that the message is an important message; and transmitting, to the user inbox, by the computing device, the message and the added metadata.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: April 9, 2024
    Assignee: YAHOO ASSETS LLC
    Inventors: Chris Luvogt, Muni Xu, Rofaida Abdelaal, Bhopal Singh
  • Patent number: 11944448
    Abstract: A system and method for adaptive illumination, the imaging system comprising an excitation source having a modulator, which generates a pulse intensity pattern having a first wavelength when the excitation source receives a modulation pattern. The modulation pattern is a data sequence of a structural image of a sample. An amplifier of the imaging system is configured to receive and amplify the pulse intensity pattern from the modulator. A frequency shift mechanism of the imaging system shifts the first wavelength of the pulse intensity pattern to a second wavelength. A laser scanning microscope of the imaging system receives the pulse intensity pattern having the second wavelength.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: April 2, 2024
    Assignee: Cornell University
    Inventors: Chris Xu, Kriti Charan, Bo Li, Michael Buttolph
  • Patent number: 11948836
    Abstract: Apparatuses and methods to provide electronic devices having metal films are provided. Some embodiments of the disclosure utilize a metallic tungsten layer as a liner that is filled with a metal film comprising cobalt. The metallic tungsten layer has good adhesion to the cobalt leading to enhanced cobalt gap-fill performance.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: April 2, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Yu Lei, Sang-Hyeob Lee, Chris Pabelico, Yi Xu, Tae Hong Ha, Xianmin Tang, Jin Hee Park
  • Publication number: 20240107022
    Abstract: Lossy or lossless compression and transmission, comprising the steps of: (i) receiving an input image; (ii) encoding it to produce a y latent representation; (iii) encoding the y latent representation to produce a z hyperlatent representation; (iv) quantizing the z hyperlatent representation to produce a quantized z hyperlatent representation; (v) entropy encoding the quantized z hyperlatent representation into a first bitstream, (vi) processing the quantized z hyperlatent representation to obtain a location entropy parameter ?y, an entropy scale parameter ?y, and a context matrix Ay of the y latent representation; (vii) processing the y latent representation, the location entropy parameter py and the context matrix Ay, to obtain quantized latent residuals; (viii) entropy encoding the quantized latent residuals into a second bitstream; and (ix) transmitting the bitstreams.
    Type: Application
    Filed: November 19, 2023
    Publication date: March 28, 2024
    Inventors: Chri BESENBRUCH, Aleksandar CHERGANSKI, Christopher FINLAY, Alexander LYTCHIER, Jonathan RAYNER, Tom RYDER, Jan XU, Arsalan ZAFAR
  • Patent number: 11936866
    Abstract: A method for lossy video encoding, transmission and decoding, the method comprising the steps of: receiving an input video at a first computer system; encoding an input frame of the input video to produce a latent representation; producing a quantized latent; producing a hyper-latent representation; producing a quantized hyper-latent; entropy encoding the quantized latent; transmitting the entropy encoded quantized latent and the quantized hyper-latent to a second computer system; decoding the quantized hyper-latent to produce a set of context variables, wherein the set of context variables comprise a temporal context variable; entropy decoding the entropy encoded quantized latent using the set of context variables to obtain an output quantized latent; and decoding the output quantized latent to produce an output frame, wherein the output frame is an approximation of the input frame.
    Type: Grant
    Filed: August 30, 2023
    Date of Patent: March 19, 2024
    Assignee: DEEP RENDER LTD.
    Inventors: Chris Finlay, Christian Besenbruch, Jan Xu, Bilal Abbasi, Christian Etmann, Arsalan Zafar, Sebastjan Cizel, Vira Koshkina
  • Publication number: 20240070925
    Abstract: A method of training one or more neural networks, the one or more neural networks being for use in lossy image or video encoding, transmission and decoding, the method comprising steps including: receiving an input image at a first computer system; encoding the input image using a first neural network and decoding the latent representation using a second neural network to produce an output image; at least one of the plurality of layers of the first or second neural network comprises a transformation; and the method further comprises the steps of: evaluating a difference between the output image and the input image and evaluating a function based on an output of the transformation; updating the parameters of the first neural network and the second neural network based on the evaluated difference and the evaluated function; and repeating the above steps.
    Type: Application
    Filed: August 30, 2023
    Publication date: February 29, 2024
    Inventors: Chris FINLAY, Jonathan RAYNER, Jan XU, Christian BESENBRUCH, Arsalan ZAFAR, Sebastjan CIZEL, Vira KOSHKINA
  • Publication number: 20240073176
    Abstract: In some aspects, the techniques described herein relate to a method including: receiving, by a computing device, a message corresponding to a user inbox and to be added to the user inbox; applying, by the computing device, prior to adding the message to the user inbox, a message classification model to content of the message to determine one or more classifications corresponding to the message; determining, by the computing device, that the message is an important message based on whether one or more of the classifications is one of a set of predetermined classifications; adding, by the computing device, metadata to the message, the added metadata indicating that the message is an important message; and transmitting, to the user inbox, by the computing device, the message and the added metadata.
    Type: Application
    Filed: August 25, 2022
    Publication date: February 29, 2024
    Inventors: Chris LUVOGT, Muni XU, Rofaida ABDELAAL, Bhopal SINGH
  • Patent number: 11913897
    Abstract: A method, system and apparatus for sensing fluids. A fluid sensor is configured to analyze a fluid utilizing impedance spectroscopy. Capacitive impedance of fluids is sensed and measured. Inductive impedance of suspended particles in fluids is measured. An electrochemical fingerprint of the properties of the fluid or of the particles within the fluid is generated. Fluid analytics data is generated from sensor signal data of the fluids under test. Trainable artificial intelligence algorithms are used to generate fluid analytics data.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: February 27, 2024
    Assignee: FluidInsight Ltd.
    Inventors: Patrick Emokpae, David Rutledge, Richard Helfmann, Terry Greeniaus, Chris Holt, Mohammad Abdolrazzaghi, Brad Hesson, Richard Hull, Kenny Xu, Arunkumar Sundaram
  • Patent number: 11607165
    Abstract: A system and method for adaptive illumination, the imaging system comprising an excitation source having a modulator, which generates a pulse intensity pattern having a first wavelength when the excitation source receives a modulation pattern. The modulation pattern is a data sequence of a structural image of a sample. An amplifier of the imaging system is configured to receive and amplify the pulse intensity pattern from the modulator. A frequency shift mechanism of the imaging system shifts the first wavelength of the pulse intensity pattern to a second wavelength. A laser scanning microscope of the imaging system receives the pulse intensity pattern having the second wavelength.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 21, 2023
    Inventors: Chris Xu, Kriti Charan, Bo Li, Michael Buttolph
  • Publication number: 20230039098
    Abstract: A system and method for adaptive illumination, the imaging system comprising an excitation source having a modulator, which generates a pulse intensity pattern having a first wavelength when the excitation source receives a modulation pattern. The modulation pattern is a data sequence of a structural image of a sample. An amplifier of the imaging system is configured to receive and amplify the pulse intensity pattern from the modulator. A frequency shift mechanism of the imaging system shifts the first wavelength of the pulse intensity pattern to a second wavelength. A laser scanning microscope of the imaging system receives the pulse intensity pattern having the second wavelength.
    Type: Application
    Filed: October 5, 2022
    Publication date: February 9, 2023
    Inventors: Chris Xu, Kriti Charan, Bo Li, Michael Buttolph
  • Patent number: 11112594
    Abstract: A microendoscope, and a microendoscopy method related to the microendoscope, each include a tube housing, where an end of the tube housing is shaped and finished to facilitate collection of light emitted from a sample when examined using the microendoscope. In addition, a catadioptric lens assembly, an endomicroscope that includes the catadioptric lens assembly and a microendoscopy method for microscopic analysis that uses the endomicroscope are predicated upon a second element and a third element within the catadioptric lens assembly that each has a dichroic coating. The placement of the dichroic coating on the second element and the third element provides for different magnification factors as a function of illumination wavelength when using the microendoscopy method.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: September 7, 2021
    Assignee: CORNELL UNIVERSITY
    Inventors: Dimitre G Ouzounov, Chunhui (Chris) Xu, Watt W. Webb
  • Publication number: 20210187329
    Abstract: An integrated GHz ultrasonic neuro-cognitive system including a chip-cyborg having a network of biological neurons that forms a biological information processor, which can be controlled by electronics, optics, and GHz ultrasonic beams. In one example, the chip-scale microsystem includes a CMOS chip with RF CMOS and piezoelectric thin film transducers that can generate GHz ultrasonic waves, which can be phased to form narrow beams, achieving significant ultrasonic intensity to affect neurons. With a sufficient number of ultrasonic pixels, the focal point of the beam can be narrow enough to focus effect specific section of a neuron to enhance or decrease synaptic weights owing to ultrasonic radiation forces and acoustic streaming.
    Type: Application
    Filed: May 23, 2019
    Publication date: June 24, 2021
    Applicant: CORNELL UNIVERSITY
    Inventors: Amit Lal, Chris Xu, Ankur Singh
  • Publication number: 20200069233
    Abstract: A system and method for adaptive illumination, the imaging system comprising an excitation source having a modulator, which generates a pulse intensity pattern having a first wavelength when the excitation source receives a modulation pattern. The modulation pattern is a data sequence of a structural image of a sample. An amplifier of the imaging system is configured to receive and amplify the pulse intensity pattern from the modulator. A frequency shift mechanism of the imaging system shifts the first wavelength of the pulse intensity pattern to a second wavelength. A laser scanning microscope of the imaging system receives the pulse intensity pattern having the second wavelength.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 5, 2020
    Applicant: CORNELL UNIVERSITY
    Inventors: Chris Xu, Kriti Charan, Bo Li, Michael Buttolph
  • Publication number: 20200025627
    Abstract: A multi-photon wavefront sensor system and method. The system includes a Shack-Hartmann wavefront sensor and a laser excitation source configured to emit a plurality of laser pulses at a wavelength in the near-infrared range, wherein the plurality of laser pulses are configured to induce multi-photon absorption in a detector material of the Shack-Hartmann wavefront sensor.
    Type: Application
    Filed: February 16, 2018
    Publication date: January 23, 2020
    Applicant: CORNELL UNIVERSITY
    Inventors: Chris Xu, David Sinefeld, Fei Xia
  • Patent number: 9502852
    Abstract: Embodiments of the present invention generally relate to fiber designs for wavelength tunable ultra-short pulse lasers. More specifically, embodiments of the present invention relate to systems incorporating fiber designs for higher order mode fibers capable of soliton self frequency shifting where a system comprises a first fiber for shifting the wavelength from a pump wavelength to a transfer wavelength and a second fiber for shifting the pulse from the transfer wavelength to an output wavelength. In one embodiment of the present invention, a wavelength tunable short pulse fiber laser system comprises: a pulse generator for providing a pulse having an input wavelength; a mode-converter; a first designed fiber for shifting the pulse from the input wavelength to a transfer wavelength; and a second designed fiber for shifting the pulse from the transfer wavelength to an output wavelength.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 22, 2016
    Assignee: OFS FITEL, LLC
    Inventors: Lars Gruner-Nielsen, Dan P Jakobsen, Martin E. V. Pedersen, Chris Xu, Ji Cheng
  • Patent number: 9482817
    Abstract: Embodiments of the present invention generally relate to optical mode conversion by nonlinear effects. More specifically, embodiments of the present invention relate to nonlinear mode conversion utilizing intermodal four-wave mixing to convert light between modes having different wavelengths for complex applications. In one embodiment of the present invention, a fiber comprises an input end for receiving light in a first mode at a first wavelength, and an output end for outputting light in a desired second mode at a desired second wavelength, wherein the first wavelength and the second wavelength are not the same. In many embodiments, the fiber comprises a higher-order mode fiber.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 1, 2016
    Assignee: OFS FITEL, LLC
    Inventors: Lars Gruner-Nielsen, Dan P Jakobsen, Martin E. V. Pedersen, Chris Xu, Ji Cheng
  • Patent number: 9375136
    Abstract: An optical lens comprising a lens body that transmits light in an optical path there through, wherein the lens body consists of an anterior surface, a posterior surface, and a medium there between, further wherein one of the anterior surface and the posterior surface has a single curvature and the other of the anterior surface and the posterior surface has at least two optical zones each having a different curvature. An optical system, comprising a multi-photon endoscope having a distal end, and the optical lens disposed in the distal end. A method for obtaining an image of an object comprising providing the multi-photon endoscope, propagating light from the endoscope scanner one optical zone of the lens to focus the light at a focus location, and propagating light from the scanner through a different optical zones of the lens to focus the light at a different focus location.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: June 28, 2016
    Assignee: CORNELL UNIVERSITY
    Inventors: Watt W. Webb, Chunhui (Chris) Xu, Minghan Chen
  • Patent number: 9195042
    Abstract: Embodied is a two-color, fiber-delivered picosecond source for coherent Raman scattering (CRS) imaging. A wavelength tunable picosecond pump is generated by nonlinear spectral compression of a prechirped femtosecond pulse from a mode-locked titanium:sapphire (Ti:S) laser. A 1064-nm picosecond Stokes pulse is generated by an all-fiber time-lens source (or suitable alternative source) that is synchronized to the Ti:S laser. The pump and Stokes beams are combined in an optical fiber coupler, which serves not only as the delivery fiber but also as the nonlinear medium for spectral compression of the femtosecond pulse. CRS imaging of mouse skin is performed to demonstrate the practicality of this source.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: November 24, 2015
    Assignee: CORNELL UNIVERSITY
    Inventors: Chunhui (Chris) Xu, Ke Wang
  • Publication number: 20150131147
    Abstract: A microendoscope, and a microendoscopy method related to the microendoscope, each include a tube housing, where an end of the tube housing is shaped and finished to facilitate collection of light emitted from a sample when examined using the microendoscope. In addition, a catadioptric lens assembly, an endomicroscope that includes the catadioptric lens assembly and a microendoscopy method for microscopic analysis that uses the endomicroscope are predicated upon a second element and a third element within the catadioptric lens assembly that each has a dichroic coating. The placement of the dichroic coating on the second element and the third element provides for different magnification factors as a function of illumination wavelength when using the microendoscopy method.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 14, 2015
    Applicant: CORNELL UNIVERSITY
    Inventors: Dimitre G Ouzounov, Chunhui (Chris) Xu, Watt W. Webb
  • Publication number: 20150009554
    Abstract: Embodiments of the present invention generally relate to optical mode conversion using intermodal Cherenkov radiation. More specifically, embodiments of the present invention relate to optical mode conversion utilizing intermodal four-wave mixing to convert light between modes for complex applications, whereby one of the four waves is generated from Cherenkov radiation. In one embodiment of the present invention, a fiber comprises an input end for receiving light in a first mode at a first wavelength, and an output end for outputting light in a desired second mode at a desired second wavelength; wherein the desired second mode is controlled deforming the fiber, such as by bending, during an intermodal Cherenkov radiation process.
    Type: Application
    Filed: February 21, 2013
    Publication date: January 8, 2015
    Inventors: Lars Gruner-Nielsen, Martin Erland Vestergaard Pedersen, Chris Xu, Ji Cheng