Patents by Inventor Ming Dai

Ming Dai 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).

  • Accommodation compensation systems and methods
    Patent number: 9198572
    Abstract: Methods and systems for obtaining an ocular aberration measurement of an eye of a patient are provided. Exemplary techniques involve obtaining a first induced metric for the eye that corresponds to a first accommodation state of the eye, obtaining a second induced metric for the eye that corresponds to a second accommodation state of the eye, and determining a natural metric of the eye based on the first and second induced metrics. An induced metric may include a pupil size or a spherical aberration. Techniques can also include determining a target metric for the eye base on the natural metric, determining whether an actual metric of the eye meets the target metric, obtaining an ocular aberration measurement of the eye if the actual metric meets the target metric, and determining a treatment for the eye based on the ocular aberration measurement.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 1, 2015
    Assignee: AMO Development, LLC
    Inventors: Guang-ming Dai, Leander Zickler
  • ZONE EXTENSION SYSTEMS AND METHODS
    Publication number: 20150242361
    Abstract: Wavefront measurements of eyes are often taken when the pupil is in a first configuration in an evaluation context. The results can be represented by a set of basis function coefficients. Prescriptive treatments are often applied in a treatment context, which is different from the evaluation context. Hence, the patient pupil can be in a different, second configuration, during treatment. Systems and methods are provided for determining a transformed set of basis function coefficients, based on a difference between the first and second configurations, which can be used to establish the vision treatment.
    Type: Application
    Filed: May 13, 2015
    Publication date: August 27, 2015
    Inventor: Guang-ming Dai
  • WAVEFRONT MEASUREMENT PRE-SMOOTHING SYSTEMS AND METHODS
    Publication number: 20150182112
    Abstract: Embodiments of the present invention encompass systems and methods for generating a vision treatment target for an eye of a patient. Exemplary techniques can involve obtaining a wavefront measurement for the eye of the patient, processing the wavefront measurement, using a low pass filter, to obtain an ocular wavefront, and generating the vision treatment target based on the ocular wavefront. In some cases, the wavefront is processed by applying a Fourier transform to the wavefront measurement to obtain a Fourier spectrum of the wavefront, convolving, in the Fourier domain, the Fourier spectrum of the wavefront and the low pass filter to obtain a Fourier spectrum convolution result, and applying an inverse transform to the convolution result to obtain the ocular wavefront.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Inventors: Anatoly Fabrikant, Dimitri Chernyak, Guang-ming Dai, Jayesh Shah
  • Zone extension systems and methods
    Patent number: 9050030
    Abstract: Wavefront measurements of eyes are often taken when the pupil is in a first configuration in an evaluation context. The results can be represented by a set of basis function coefficients. Prescriptive treatments are often applied in a treatment context, which is different from the evaluation context. Hence, the patient pupil can be in a different, second configuration, during treatment. Systems and methods are provided for determining a transformed set of basis function coefficients, based on a difference between the first and second configurations, which can be used to establish the vision treatment.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: June 9, 2015
    Assignee: AMO Development, LLC
    Inventor: Guang-ming Dai
  • ACCOMMODATION COMPENSATION SYSTEMS AND METHODS
    Publication number: 20150133900
    Abstract: Methods and systems for obtaining an ocular aberration measurement of an eye of a patient are provided. Exemplary techniques involve obtaining a first induced metric for the eye that corresponds to a first accommodation state of the eye, obtaining a second induced metric for the eye that corresponds to a second accommodation state of the eye, and determining a natural metric of the eye based on the first and second induced metrics. An induced metric may include a pupil size or a spherical aberration. Techniques can also include determining a target metric for the eye base on the natural metric, determining whether an actual metric of the eye meets the target metric, obtaining an ocular aberration measurement of the eye if the actual metric meets the target metric, and determining a treatment for the eye based on the ocular aberration measurement.
    Type: Application
    Filed: August 22, 2014
    Publication date: May 14, 2015
    Inventors: Guang-ming Dai, Leander Zickler
  • TREATMENT VALIDATION SYSTEMS AND METHODS
    Publication number: 20150134316
    Abstract: Treatment validation techniques include generating a modified treatment target from an original treatment target using a modification process, and comparing induced aberrations provided by the original and modified treatment targets, so as to verify the modified treatment target or the modification process. In some cases, a modification process may include a deconvolution process, a low pass filter process, a scaling process, or an adjustment process. The induced aberrations may include high order aberrations, such as spherical aberration.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: Guang-ming Dai, Anatoly Fabrikant, Dimitri Chernyak, Jayesh Shah
  • Systems and methods for wavefront analysis over circular and noncircular pupils
    Patent number: 8983812
    Abstract: Systems, methods, and software for determining a set of analytical or numerical polynomials that is orthonormal over circular or noncircular pupils are described. Closed-form orthonormal polynomials for circular, annular, hexagonal, elliptical, rectangular, and square pupils are derived. Such techniques can be applied to ray tracing as in the optical design and wavefront fitting from measurement as in the optical testing. These approaches can also be applied to wavefront reconstruction in adaptive optics.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: March 17, 2015
    Assignee: AMO Development, LLC
    Inventors: Guang-ming Dai, Virendra N. Mahajan
  • SYSTEMS AND METHODS FOR TREATMENT DECONVOLUTION USING DUAL SCALE KERNELS
    Publication number: 20150066466
    Abstract: Deconvolution systems and methods based on cornea smoothing can be used to obtain an ablation target or treatment shape that does not induce significant high order aberrations such as spherical aberration. Exemplary ablation targets or treatment shapes can provide a post-operative spherical aberration that is equal to or below a naturally occurring amount of spherical aberration.
    Type: Application
    Filed: October 24, 2014
    Publication date: March 5, 2015
    Inventors: Dimitri Chernyak, Guang-Ming Dai, Anatoly Fabrikant
  • Compound modulation transfer function for laser surgery and other optical applications
    Patent number: 8911086
    Abstract: Methods, devices, and systems establish an optical surface shape that mitigates or treats a vision condition in a patient. An optical surface shape for a particular patient can be determined using a set of patient parameters for the specific patient by using a compound modulation transfer function (CMTF). The compound modulation transfer function can include a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: December 16, 2014
    Assignee: AMO Manufacturing USA, LLC
    Inventor: Guang-ming Dai
  • Induced High Order Aberrations Corresponding to Geometrical Transformations
    Publication number: 20140333894
    Abstract: Wavefront measurements of eyes are typically taken when the pupil is in a first configuration in an evaluation context. The results can be represented by a set of basis function coefficients. Prescriptive treatments are often applied in a treatment context, which is different from the evaluation context. Hence, the patient pupil can be in a different, second configuration, during treatment. Systems and methods are provided for determining a transformed set of basis function coefficients, based on a difference between the first and second configurations, which can be used to establish the vision treatment.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 13, 2014
    Inventor: Guang-ming Dai
  • Accommodation compensation systems and methods
    Patent number: 8851670
    Abstract: Methods and systems for obtaining an ocular aberration measurement of an eye of a patient are provided. Exemplary techniques involve obtaining a first induced metric for the eye that corresponds to a first accommodation state of the eye, obtaining a second induced metric for the eye that corresponds to a second accommodation state of the eye, and determining a natural metric of the eye based on the first and second induced metrics. An induced metric may include a pupil size or a spherical aberration. Techniques can also include determining a target metric for the eye base on the natural metric, determining whether an actual metric of the eye meets the target metric, obtaining an ocular aberration measurement of the eye if the actual metric meets the target metric, and determining a treatment for the eye based on the ocular aberration measurement.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: October 7, 2014
    Assignee: AMO Development LLC
    Inventors: Guang-ming Dai, Leander Zickler
  • Induced high order aberrations corresponding to geometrical transformations
    Patent number: 8827449
    Abstract: Wavefront measurements of eyes are typically taken when the pupil is in a first configuration in an evaluation context. The results can be represented by a set of basis function coefficients. Prescriptive treatments are often applied in a treatment context, which is different from the evaluation context. Hence, the patient pupil can be in a different, second configuration, during treatment. Systems and methods are provided for determining a transformed set of basis function coefficients, based on a difference between the first and second configurations, which can be used to establish the vision treatment.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: September 9, 2014
    Assignee: AMO Development LLC
    Inventor: Guang-ming Dai
  • COMPENSATION SYSTEMS AND METHODS FOR FLAP INDUCED ABERRATIONS
    Publication number: 20140163535
    Abstract: Embodiments of the present invention encompass systems and methods for customized vision treatments that account for effects associated with corneal flap creation.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: AMO Development, LLC
    Inventors: Guang-ming Dai, Anatoly Fabrikant, Stanley S. Bentow
  • RANDOM EYE GENERATION SYSTEMS AND METHODS
    Publication number: 20140160437
    Abstract: Random human eye generators are provided for use in evaluating aspects of treatment in refractive surgery or other therapeutic vision modalities. Exemplary random eye generators include an optical parameter such as a manifest refractive sphere parameter or a wavefront sphere parameter, and incorporate a Rayleigh distribution for such parameters.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: AMO Development, LLC
    Inventor: Guang-ming Dai
  • BASIS DATA APODIZATION SYSTEMS AND METHODS
    Publication number: 20140135748
    Abstract: Systems, methods, and computer program products are provided for the administration of ablation profiles during refractive surgery treatments. Basis data framework techniques enable the implementation of ablation profiles having various shapes, resulting in increased ablation efficiency when treating certain vision conditions. Exemplary basis data architecture approaches are configured to efficiently operate with annular, elliptical, and slit laser beam shapes, for example, and to account for position-dependent ablation features.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 15, 2014
    Applicant: AMO Development, LLC
    Inventors: Guang-ming Dai, Anatoly Fabrikant, Benjamin Logan, Dimitri Chernyak, Mark Arnoldussen
  • Compound modulation transfer function for laser surgery and other optical applications
    Patent number: 8714742
    Abstract: Methods and systems for changing a property of an eye. A property of the eye can be changed using an aspheric profile for increasing a depth of focus. Aspheric profile generation can include calculating a shape for increasing the focal depth to be rotationally symmetrical.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 6, 2014
    Assignee: AMO Manufacturing USA, LLC
    Inventors: Guang-Ming Dai, Kingman Yee
  • SYSTEMS AND METHODS FOR TREATMENT TARGET DECONVOLUTION
    Publication number: 20140095137
    Abstract: Deconvolution systems and methods based on cornea smoothing can be used to obtain an ablation target or treatment shape that does not induce significant high-order aberrations such as spherical aberration. Exemplary ablation targets or treatment shapes can provide a post-operative spherical aberration that is equal to or below a naturally occurring amount of spherical aberration.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 3, 2014
    Applicant: AMO Development, LLC
    Inventors: Guang-ming Dai, Anatoly Fabrikant, Dimitri Chernyak
  • Systems and methods for evaluating treatment tables for refractive surgery
    Patent number: 8663207
    Abstract: Treatment table verification techniques involve comparing intended refraction information with expected optical refraction information, and validating or qualifying the treatment table based on such comparisons. Systems and methods for verifying treatment tables provide enhanced safety for laser vision correction treatments.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: March 4, 2014
    Assignee: AMO Development, LLC
    Inventors: Guang-ming Dai, Richard A. Hofer, Dimitri Chernyak
  • ACCOMMODATION COMPENSATION SYSTEMS AND METHODS
    Publication number: 20140055750
    Abstract: Methods and systems for obtaining an ocular aberration measurement of an eye of a patient are provided. Exemplary techniques involve obtaining a first induced metric for the eye that corresponds to a first accommodation state of the eye, obtaining a second induced metric for the eye that corresponds to a second accommodation state of the eye, and determining a natural metric of the eye based on the first and second induced metrics. An induced metric may include a pupil size or a spherical aberration. Techniques can also include determining a target metric for the eye base on the natural metric, determining whether an actual metric of the eye meets the target metric, obtaining an ocular aberration measurement of the eye if the actual metric meets the target metric, and determining a treatment for the eye based on the ocular aberration measurement.
    Type: Application
    Filed: August 29, 2013
    Publication date: February 27, 2014
    Applicant: AMO Development, LLC
    Inventors: Guang-ming Dai, Leander Zickler
  • Phased-array transceiver for millimeter-wave frequencies
    Patent number: 8618983
    Abstract: A phased-array transmitter and receiver that may be effectively implemented on a silicon substrate. The transmitter distributes to front-ends, and the receiver combines signals from front-ends, using a power distribution/combination tree that employs both passive and active elements. By monitoring the power inputs and outputs, a digital control is able to rapidly provide phase and gain correction information to the front-ends. Such a transmitter/receiver includes a plurality of radio frequency (RF) front-ends and a power splitting/combining network that includes active and passive components configured to distribute signals to/from the front-ends.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 31, 2013
    Assignees: International Business Machines Corporation, MediaTek Inc.
    Inventors: Ping-Yu Chen, Brian A. Floyd, Jie-Wei Lai, Arun S. Natarajan, Sean T. Nicolson, Scott K. Reynolds, Ming-Dai Tsai, Alberto Valdes-Garcia, Jing-Hong C. Zhan