Patents by Inventor Xu Cheng

Xu Cheng 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: 20180228364
    Abstract: A system, method and computer program product for estimating future axial elongation of an individual's eye as a way to predict and track refractive error progression of an individual. The method includes: receiving, via a computer interface, data relating to refractive change in a prior pre-determined time period for the individual from a reference timepoint; receiving data representing an age of the individual and data representing a current axial length value of the eye as measured at the reference timepoint; calculating, by said processor, a future axial elongation of the eye as a function of the age of the individual, the current axial length value of the eye as measured at the reference timepoint, and the refractive change in the prior pre-determined time period; generating, an output indication of said computed axial elongation of the eye, and using said output indication to select a myopia control treatment for said individual.
    Type: Application
    Filed: April 13, 2018
    Publication date: August 16, 2018
    Inventors: Noel A. Brennan, Xu Cheng
  • Patent number: 10042181
    Abstract: A method for estimating and tracking refractive error progression of an individual includes estimating a percentile of Spherical Equivalent Refraction (SPHEQ) as a function of at least the individual's age by comparison to a reference population; estimating an expected SPHEQ trajectory over a future predetermined period of time; comparing the expected SPHEQ trajectory with the reference population; and comparing the expected SPHEQ trajectory with an expected SPHEQ trajectory using an ametropia control treatment, thereby showing a possible treatment benefit over the predetermined period of time.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: August 7, 2018
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Noel A. Brennan, Khaled Chehab, Eric R. Ritchey, Lisa A. Jones-Jordan, Loraine T. Sinnott, Xu Cheng
  • Patent number: 10012848
    Abstract: Contact lenses incorporate mask lens designs that at least one of slow, retard or preventing myopia progression. The lens includes a first zone at a center of the lens; at least one peripheral zone surrounding the center and having a dioptric power that is different than that at the center; and an opaque mask beginning at a radial distance from the center, thereby providing a lens power profile having substantially equivalent foveal vision correction to a single vision lens, and having a depth of focus and reduced retinal image quality sensitivity that slows, retards, or prevents myopia progression.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: July 3, 2018
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Noel A. Brennan, Khaled A. Chehab, Xu Cheng, Kurt Moody, Jeffrey H. Roffman, Xin Wei
  • Patent number: 10012849
    Abstract: Lenses are designed using the corneal topography or wavefront measurements of the eye derived by subtracting the optical power of the eye after orthokeratology treatment from the optical power before orthokeratology treatment.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: July 3, 2018
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Michael J. Collins, Brett A. Davis, Khaled A. Chehab, Xu Cheng, Daoud Robert Iskander
  • Publication number: 20180140181
    Abstract: A method for estimating and tracking refractive error progression of an individual includes estimating a percentile of Spherical Equivalent Refraction (SPHEQ) as a function of at least the individual's age by comparison to a reference population; estimating an expected SPHEQ trajectory over a future predetermined period of time; comparing the expected SPHEQ trajectory with the reference population; and comparing the expected SPHEQ trajectory with an expected SPHEQ trajectory using an ametropia control treatment, thereby showing a possible treatment benefit over the predetermined period of time.
    Type: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Inventors: Noel A. Brennan, Khaled Chehab, Eric R. Ritchey, Lisa A. Jones-Jordan, Loraine T. Sinnott, Xu Cheng
  • Publication number: 20180074482
    Abstract: Systems and approaches for error detection detect discrepancies in industrial equipment by comparing a particular asset to similar industrial assets running in parallel to the particular asset. An error detection unit detects a difference between an estimated and actual output of the asset. Based on the magnitude of the difference, the error detection unit determines whether an input value of the particular asset is similar to input values of the plurality of industrial assets and whether an output value of the particular asset is similar to output values of the plurality of industrial assets. If the input value of the particular asset is similar to the input values of the plurality of industrial assets and the output value of the particular asset is not similar to the output values of the plurality of industrial assets, then the error detection system sets an alarm.
    Type: Application
    Filed: September 14, 2016
    Publication date: March 15, 2018
    Inventors: Xu Cheng, Azime Can-Cimino, Richard W. Kephart
  • Patent number: 9917150
    Abstract: Deep trench isolation structures and systems and methods including the same are disclosed herein. The systems include a semiconductor device. The semiconductor device includes a semiconductor body, a device region, and the deep trench isolation structure. The deep trench isolation structure is configured to electrically isolate the device region from other device regions that extend within the semiconductor body. The deep trench isolation structure includes an isolation trench, a dielectric material that extends within the isolation trench, a first semiconducting region, and a second semiconducting region. The methods include methods of operating an integrated circuit device that includes a plurality of semiconductor devices that include the disclosed deep trench isolation structures.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: March 13, 2018
    Assignee: NXP USA, INC.
    Inventors: Xu Cheng, Daniel J. Blomberg, Jiang-Kai Zuo
  • Publication number: 20180031228
    Abstract: A control system for controlling a steam turbine power plant having multiple steam flow paths that converge to a combined steam path controls the final steam temperature of the steam input into the turbine by controlling one or more temperature control devices in each of the steam flow paths. The control system includes a multivariable controller, such as a multi-input/multi-output (MIMO) controller, that produces two control signals that control each of a set of downstream control valves in the split steam flow paths. The controller receives two inputs in the form of measured or calculated process variables including the final steam temperature and the inter-stage temperature difference between the steam being produced in each of the two split steam paths and performs multi-objective control based on these inputs.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 1, 2018
    Inventors: Xu Cheng, Ranjit R. Rao, Richard J. Whalen, JR.
  • Patent number: 9827250
    Abstract: Ophthalmic devices, such as contact lenses, may incorporate myopia control optics in combination with therapeutic agents also known to control myopia to create a drug delivery mechanism to inhibit or arrest the progression of myopia in individuals. Any number of contact lenses incorporating myopia control optics may be combined with a therapeutic agent such as atropine, atropine sulphate monohydrate, and/or pirenzepine.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: November 28, 2017
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Khaled Chehab, Arthur H. Shedden, Jr., Xu Cheng
  • Patent number: 9825169
    Abstract: A device includes a semiconductor substrate, a buried doped isolation layer disposed in the semiconductor substrate to isolate the device, a drain region disposed in the semiconductor substrate and to which a voltage is applied during operation, and a depletion region disposed in the semiconductor substrate and having a conductivity type in common with the buried doped isolation barrier and the drain region. The depletion region reaches a depth in the semiconductor substrate to be in contact with the buried doped isolation layer. The depletion region establishes an electrical link between the buried doped isolation layer and the drain region such that the buried doped isolation layer is biased at a voltage level lower than the voltage applied to the drain region.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: November 21, 2017
    Assignee: NXP USA, Inc.
    Inventors: Xin Lin, Xu Cheng, Hongning Yang, Zhihong Zhang, Jiang-Kai Zuo
  • Publication number: 20170276963
    Abstract: Ophthalmic lenses incorporate multifocal properties for the purpose of slowing, retarding, controlling or preventing myopia development or progression, correcting presbyopic vision or allowing extended depth of focus. The lens has electronically controlled adjustable focus where the change in focus oscillates so rapidly that it is imperceptible to human vision.
    Type: Application
    Filed: March 15, 2017
    Publication date: September 28, 2017
    Inventors: Noel A. Brennan, Salvatore Caldarise, Khaled Chehab, Xu Cheng, Michael J. Collins, Brett A. Davis, Jaclyn Hernandez, Adam Toner, Fan Yi
  • Patent number: 9771834
    Abstract: An economic dispatch program allocates a load demand and an emission allowance of a power generation system among various power plants to determine the operational set-points and the pollution control set-points of each of the various power plants in a manner that minimizes the total operating cost for the power generation system, including the pollution control cost. The economic dispatch program uses the pollution control set-points and the load set-points of the various power plants as decision variables and takes into consideration the pollution control costs of the various power plants in allocating the load demand. During operation, the economic dispatch program takes into consideration the pollution credits available to the various power plants in allocating the load demand and pollution control level to determine the optimal operating solution for the power plants.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: September 26, 2017
    Assignee: EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS, INC.
    Inventors: Xu Cheng, Frederick C. Huff
  • Patent number: 9771872
    Abstract: A control system uses a modeled steam turbine megawatt (power) change attributed to a gas turbine demand change (i.e., a steam turbine to gas turbine transfer function) within a conventional closed loop feedback control scheme to perform control of a combined cycle power plant. This control system implements a form of internal model control and provides better unit megawatt (power) set-point tracking and disturbance variable rejection for overall more robust control, and thus operates to optimize the gas turbine operation of the combined cycle power plant in a manner that provides cost savings over time.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 26, 2017
    Assignee: EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS, INC.
    Inventors: Ranjit R. Rao, Xu Cheng, Frederick C. Huff, Benjamin F. Gerideau, III
  • Patent number: 9733494
    Abstract: Lenses incorporate freeform power profiles that at least one of slow, retard or preventing myopia progression. An ophthalmic lens includes a first zone at a center of the lens; a first peripheral region continuously extending from the center, the first peripheral region having a different dioptric power than at the center; and a second peripheral region continuously extending from the first peripheral region and having a different dioptric power than the first peripheral region, thereby providing a continuous freeform power profile having substantially equivalent visual performance to a single vision lens, and having a depth of focus and reduced retinal image quality sensitivity that slows, retards, or prevents myopia progression.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: August 15, 2017
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Noel A. Brennan, Khaled A. Chehab, Xu Cheng, Kurt John Moody, Jeffrey H. Roffman, Xin Wei
  • Patent number: 9728600
    Abstract: A device includes a semiconductor substrate, a doped isolation barrier disposed in the semiconductor substrate and defining a core device area within the doped isolation barrier, an isolation contact region disposed in the semiconductor substrate outside of the core device area, and a body region disposed in the semiconductor substrate within the core device area, and in which a channel is formed during operation. The body region is electrically tied to the isolation contact region. The body region and the doped isolation barrier have a common conductivity type. The body region is electrically isolated from the doped isolation barrier within the core device area. The doped isolation barrier and the isolation contact region are not electrically tied to one another such that the doped isolation barrier is biased at a different voltage level than the isolation contact region.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 8, 2017
    Assignee: NXP USA, Inc.
    Inventors: Hongning Yang, Daniel J. Blomberg, Xu Cheng, Xin Lin, Zhihong Zhang, Jiang-Kai Zuo
  • Publication number: 20170209036
    Abstract: A method for estimating and tracking refractive error progression of an individual includes estimating a percentile of Spherical Equivalent Refraction (SPHEQ) as a function of at least the individual's age by comparison to a reference population; estimating an expected SPHEQ trajectory over a future predetermined period of time; comparing the expected SPHEQ trajectory with the reference population; and comparing the expected SPHEQ trajectory with an expected SPHEQ trajectory using an ametropia control treatment, thereby showing a possible treatment benefit over the predetermined period of time.
    Type: Application
    Filed: January 27, 2016
    Publication date: July 27, 2017
    Inventors: Noel A. Brennan, Khaled Chehab, Eric R. Ritchey, Lisa A. Jones-Jordan, Loraine T. Sinnott, Xu Cheng
  • Publication number: 20170197594
    Abstract: The present invention discloses an assembly that can be used in windscreen wipers of vehicles and is consisting of an adapter and a nozzle structure, and also the assembling method thereof. Here the adapter presents a first adapter assembling feature (1a) and a second adapter assembling feature (1b). The nozzle structure (2) presents a first nozzle structure assembling feature (2a) and a second nozzle structure assembling feature (2b). The first adapter assembling feature and the first nozzle structure assembling feature are matched with each other to form a first connection in the form of pin-aperture between the adapter and the nozzle structure, and the nozzle structure and adapter are rotatably pre-assembled together when they are connected only be means of the first connection. The second adapter assembling feature and the second nozzle structure assembling feature are matched with each other to form a second connection in the form of snap fit between the adapter and the nozzle structure.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 13, 2017
    Applicant: Taizhou Valeo Wenling Automotive Systems Co., Ltd.
    Inventors: Bin Deng, Xu Cheng, Denis Grandjean, Shilu Chen
  • Publication number: 20170192252
    Abstract: Contact lenses incorporate high plus or add power profiles that at least one of slow, retard or preventing myopia progression and minimize halo effect. The lens includes a center zone with a negative power for myopic vision correction; and at least one treatment zone surrounding the center zone, the at least one treatment zone having a power profile that increases from an outer margin of the center zone to a positive power within the at least one treatment zone of greater than +5.00 D.
    Type: Application
    Filed: March 17, 2017
    Publication date: July 6, 2017
    Inventors: Noel A. Brennan, Khaled Chehab, Xu Cheng, Michael J. Collins, Manwai Charis Lau, Eric R. Ritchey, Xin Wei
  • Publication number: 20170179279
    Abstract: A device includes a semiconductor substrate, a buried doped isolation layer disposed in the semiconductor substrate to isolate the device, a drain region disposed in the semiconductor substrate and to which a voltage is applied during operation, and a depletion region disposed in the semiconductor substrate and having a conductivity type in common with the buried doped isolation barrier and the drain region. The depletion region reaches a depth in the semiconductor substrate to be in contact with the buried doped isolation layer. The depletion region establishes an electrical link between the buried doped isolation layer and the drain region such that the buried doped isolation layer is biased at a voltage level lower than the voltage applied to the drain region.
    Type: Application
    Filed: December 16, 2015
    Publication date: June 22, 2017
    Inventors: Xin Lin, Xu Cheng, Hongning Yang, Zhihong Zhang, Jiang-Kai Zuo
  • Patent number: 9680011
    Abstract: A device includes a semiconductor substrate, a doped isolation barrier disposed in the semiconductor substrate to isolate the device, a drain region disposed in the semiconductor substrate and to which a voltage is applied during operation, and a depleted well region disposed in the semiconductor substrate, and having a conductivity type in common with the doped isolation barrier and the drain region. The depleted well region is positioned between the doped isolation barrier and the drain region to electrically couple the doped isolation barrier and the drain region such that the doped isolation barrier is biased at a voltage level lower than the voltage applied to the drain region.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 13, 2017
    Assignee: NXP USA, Inc.
    Inventors: Zhihong Zhang, Daniel J. Blomberg, Xu Cheng, Xin Lin, Hongning Yang, Jiang-Kai Zuo