Patents by Inventor Hong Fu

Hong Fu 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).

  • HIGH SPEED CORNEAL LENTICULAR INCISION USING A FEMTOSECOND LASER
    Publication number: 20210128358
    Abstract: An ophthalmic surgical laser system and method for forming a lenticule in a subject's eye using “fast-scan-slow-sweep” scanning scheme. A high frequency scanner forms a fast scan line, which is placed by the XY and Z scanners at a location tangential to a parallel of latitude of the surface of the lenticule. The XY and Z scanners then move the scan line in a slow sweep trajectory along a meridian of longitude of the surface of the lenticule in one sweep. Multiple sweeps are performed along different meridians to form the entire lenticule surface, and a prism is used to change the orientation of the scan line of the high frequency scanner between successive sweeps. In each sweep, the sweeping speed along the meridian is variable, being the slowest at the edge of the lenticule and the fastest near the apex.
    Type: Application
    Filed: November 11, 2020
    Publication date: May 6, 2021
    Inventors: Hong Fu, Alireza Malek Tabrizi, Nima Khatibzadeh
  • Eye suction loss and corneal applanation detection in ophthalmic docking system using optical signal
    Patent number: 10973688
    Abstract: An ophthalmic laser surgical system uses a confocal detector assembly to continuously detect a confocal signal during laser treatment, and based on the confocal signal, detects in real time a loss of tissue contact with the patient interface (PI) output surface. The detection is partly based on the change of reflectivity at the PI output surface when the optical interface changes from a lens-tissue interface to a lens-air interface. The behavior of the confocal signal upon loss of tissue contact is dependent on the treatment laser scan pattern being performed at the time of tissue contact loss. Thus, different confocal signal analysis algorithms are applied to detect tissue contact loss during different scans, such as the bed cut and side cut for a corneal flap. The real time confocal signal may also be used during eye docking to detect the establishment of tissue contact with the PI output surface.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: April 13, 2021
    Assignee: AMO Development, LLC
    Inventors: Harvey I. Liu, Mohammad Saidur Rahaman, Hong Fu, Griffith E. Altmann
  • Interoperability between programs associated with different addressing modes
    Patent number: 10977101
    Abstract: Systems, methods, and computer-readable media are described for interoperability between programs associated with different addressing modes. A caller program associated with a first addressing mode (e.g., a 32-bit program or a 64-bit program) that is executing within a parent runtime environment makes a call to an external interface to execute a target callee program that is associated with a second addressing mode different from the first addressing mode. The target callee program is then executed in a pre-initialized secondary runtime environment that executes on the same task or thread as the parent runtime environment.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 13, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Naijie Li, Bao Zhang, Jing Lu, Jin Hong Fu, Kershaw Mehta
  • HEART RATE MEASUREMENT FOR FITNESS EXERCISES USING VIDEO
    Publication number: 20210082109
    Abstract: Systems, methods, apparatuses, and computer program products for contact-free heart rate monitoring and/or measurement are provided. One method may include receiving video(s) that include visual frame(s) of individual s) performing exercises, detecting some exposed skin from the video(s), and performing motion compensation to generate color signals for the exposed skin to precisely align frames of the exposed skin. The method may also include generating the color signals by estimating a skin color for each frame by taking a spatial average over pixels of a cheek of the face(s) for R, G, and B channels, respectively, applying an operation to remove remaining motion traces from the frames such that the heart rate traces dominate, and extracting and/or outputting the heart rate of the individuals using a frequency estimator of the skin color signals.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 18, 2021
    Inventors: Min WU, Chau-Wai WONG, Qiang ZU, Chang-Hong FU, Jiahao SU
  • PATIENT INTERFACE DEVICE FOR OPHTHALMIC SURGICAL LASER SYSTEM
    Publication number: 20210022917
    Abstract: A single-piece patient interface device (PI) for coupling an patient's eye to an ophthalmic surgical laser system, which includes a rigid shell, a flexible suction ring joined to a lower edge of the shell, an applanation lens, and a flexible annular diaphragm which joins the applanation lens to the shell near the lower edge of the shell. The flexible diaphragm allows the applanation lens to move relative to the shell, including to shift in longitudinal and lateral directions of the shell and to tilt. In operation, the surgeon first secures the PI to the patient's eye by hand, and then couples the laser system to the PI by lowering the laser delivery head into the PI shell. During the lowering process, the laser delivery head presses the applanation lens down relative to the PI to applanate the cornea of the eye.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Inventors: Roger W. Accurso, Jose L. Garcia, Daryl Wong, Hong Fu, Harvey Liu, Leonard R. Borrmann
  • Patient interface device for ophthalmic surgical laser system
    Patent number: 10898382
    Abstract: A single-piece patient interface device (PI) for coupling an patient's eye to an ophthalmic surgical laser system, which includes a rigid shell, a flexible suction ring joined to a lower edge of the shell, an applanation lens, and a flexible annular diaphragm which joins the applanation lens to the shell near the lower edge of the shell. The flexible diaphragm allows the applanation lens to move relative to the shell, including to shift in longitudinal and lateral directions of the shell and to tilt. In operation, the surgeon first secures the PI to the patient's eye by hand, and then couples the laser system to the PI by lowering the laser delivery head into the PI shell. During the lowering process, the laser delivery head presses the applanation lens down relative to the PI to applanate the cornea of the eye.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: January 26, 2021
    Assignee: AMO Development, LLC
    Inventors: Roger W. Accurso, Jose L. Garcia, Daryl Wong, Hong Fu, Harvey Liu, Leonard R. Borrmann
  • SYSTEMS AND METHODS FOR HIGH SPEED MODULATION OF A RESONANT SCANNER IN OPHTHALMIC LASER APPLICATIONS
    Publication number: 20210015668
    Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski
  • COMPACT ULTRA-SHORT PULSED LASER EYE SURGERY WORKSTATION
    Publication number: 20210000649
    Abstract: A compact system for performing laser ophthalmic surgery is disclosed. An embodiment of the system includes a mode-locked fiber oscillator-based ultra-short pulsed laser capable of producing laser pulses in the range of 1 nJ to 5 ?J at a pulse repetition rate of between 5 MHz and 25 MHz, a resonant optical scanner oscillating at a frequency of 200 Hz and 21000 Hz, a scan-line rotator, a movable XY-san device, a z-scan device, and a controller configured to coordinate with the other components of the system to produce one or more desired incision patterns. The system also includes compact visualization optics for in-process monitoring using a beam-splitter inside the cone of a patient interface used to fixate the patient's eye during surgery. The system can be configured such that eye surgery is performed while the patient is either sitting upright, or lying on his or her back.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 7, 2021
    Inventors: Hong Fu, Bryant M. Moore, Charles Vice
  • Authentication without inputting passwords
    Patent number: 10885163
    Abstract: The present disclosure provides a computer-implemented method, computer system and computer program product for user authentication. According to the method, identity information can be received from a user, and a plurality of questions can be presented to the user, the plurality of questions comprising one or more valid questions generated based on a password related to the identity information and one or more invalid questions. Then, an input can be received from the user, and in response to the input corresponding to the one or more valid questions, the user can be authenticated based on the input.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: January 5, 2021
    Assignee: International Business Machines Corporation
    Inventors: He Huang, Shi Peng Li, Jin Hong Fu, Shi Chong Ma
  • High speed corneal lenticular incision using a femtosecond laser
    Patent number: 10842674
    Abstract: An ophthalmic surgical laser system and method for forming a lenticule in a subject's eye using “fast-scan-slow-sweep” scanning scheme. A high frequency scanner forms a fast scan line, which is placed by the XY and Z scanners at a location tangential to a parallel of latitude of the surface of the lenticule. The XY and Z scanners then move the scan line in a slow sweep trajectory along a meridian of longitude of the surface of the lenticule in one sweep. Multiple sweeps are performed along different meridians to form the entire lenticule surface, and a prism is used to change the orientation of the scan line of the high frequency scanner between successive sweeps. In each sweep, the sweeping speed along the meridian is variable, being the slowest at the edge of the lenticule and the fastest near the apex.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: November 24, 2020
    Assignee: AMO Development, LLC
    Inventors: Hong Fu, Alireza Malek Tabrizi, Nima Khatibzadeh
  • SYSTEMS AND METHODS FOR FEMTOSECOND LASER PHOTOREFRACTIVE KERATECTOMY
    Publication number: 20200345551
    Abstract: Embodiments of this invention generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for photorefractive keratectomy. In an embodiment, an ophthalmic surgical laser system comprises a laser source generating a pulsed laser beam and a laser delivery system delivering the pulsed laser beam to a cornea of an eye. A patient interface couples to and constrains the eye relative to the laser delivery system. A controller controls the laser delivery system to perform an anterior surface volume dissection on the cornea.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Inventor: Hong Fu
  • SYSTEMS AND METHODS FOR LENTICULAR LASER INCISION
    Publication number: 20200337903
    Abstract: Embodiments of this invention generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incision. In an embodiment, an ophthalmic surgical laser system comprises a laser delivery system for delivering a pulsed laser beam to a target in a subject's eye, an XY-scan device to deflect the pulsed laser beam, a Z-scan device to modify a depth of a focus of the pulsed laser beam, and a controller configured to form a top lenticular incision and a bottom lenticular incision of a lens in the subject's eye, where each of the top and bottom lenticular incision includes a center concave portion and an edge transition portion that has a smooth convex shape and is smoothly joined to the center concave portion.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Inventors: Hong Fu, Alireza Malek Tabrizi
  • PARAMETER MANAGEMENT BETWEEN PROGRAMS
    Publication number: 20200326942
    Abstract: Methods, systems, and computer program products for parameter management between programs with different addressing modes are described. A request may be received from a first program with a first addressing mode in a first runtime environment for calling a second program with a second addressing mode different from the first addressing mode, where at least one parameter included in the request is for calling the second program. A parameter area may be allocated in the first runtime environment for the at least one parameter. The at least one parameter may be stored in the allocated parameter area. The second program may be invoked based at least in part on the at least one parameter in the allocated parameter area. In this manner, parameter(s) may be communicated between the first program and the second program in an easy and effective way.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 15, 2020
    Inventors: Jing LU, Bao ZHANG, Naijie LI, Jin Hong FU, Kershaw MEHTA
  • WATER-IMMERSED HIGH PRECISION LASER FOCUS SPOT SIZE MEASUREMENT APPARATUS
    Publication number: 20200318952
    Abstract: A measurement apparatus for measuring a laser focus spot size, which includes a two-dimensional image detector and an imaging system which forms a magnified image of a focus spot located an object plane onto the image detector. The imaging system includes at least an objective lens. A sealed liquid container is secured over a part of the objective lens such as the optical surface of the objective lens is immersed in the liquid (e.g. water) within the container. The liquid container has a window through which the laser beam enters. An image processing method is also disclosed which processes the image obtained by the image detector to obtain the focus spot size while implementing an algorithm that corrects for the effect of ambient vibration.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 8, 2020
    Inventors: Zheng Sun, Daniel Bray, Zenon Witowski, Timothy Slotterback, Hong Fu
  • Systems and methods for high speed modulation of a resonant scanner in ophthalmic laser applications
    Patent number: 10792188
    Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 6, 2020
    Assignee: AMO Development, LLC
    Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski
  • Compact ultra-short pulsed laser eye surgery workstation
    Patent number: 10779988
    Abstract: A compact system for performing laser ophthalmic surgery is disclosed. An embodiment of the system includes a mode-locked fiber oscillator-based ultra-short pulsed laser capable of producing laser pulses in the range of 1 nJ to 5 ?J at a pulse repetition rate of between 5 MHz and 25 MHz, a resonant optical scanner oscillating at a frequency of 200 Hz and 21000 Hz, a scan-line rotator, a movable XY-scan device, a z-scan device, and a controller configured to coordinate with the other components of the system to produce one or more desired incision patterns. The system also includes compact visualization optics for in-process monitoring using a beam-splitter inside the cone of a patient interface used to fixate the patient's eye during surgery. The system can be configured such that eye surgery is performed while the patient is either sitting upright, or lying on his or her back.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: September 22, 2020
    Assignee: AMO Development, LLC
    Inventors: Hong Fu, Bryant M. Moore, Charles Vice
  • EYE SUCTION LOSS AND CORNEAL APPLANATION DETECTION IN OPHTHALMIC DOCKING SYSTEM USING OPTICAL SIGNAL
    Publication number: 20200289318
    Abstract: An ophthalmic laser surgical system uses a confocal detector assembly to continuously detect a confocal signal during laser treatment, and based on the confocal signal, detects in real time a loss of tissue contact with the patient interface (PI) output surface. The detection is partly based on the change of reflectivity at the PI output surface when the optical interface changes from a lens-tissue interface to a lens-air interface. The behavior of the confocal signal upon loss of tissue contact is dependent on the treatment laser scan pattern being performed at the time of tissue contact loss. Thus, different confocal signal analysis algorithms are applied to detect tissue contact loss during different scans, such as the bed cut and side cut for a corneal flap. The real time confocal signal may also be used during eye docking to detect the establishment of tissue contact with the PI output surface.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Harvey I. Liu, Mohammad Saidur Rahaman, Hong Fu, Griffith E. Altmann
  • Wall mount assembly
    Patent number: 10716402
    Abstract: The present disclosure provides a rear structure coupled to a display panel. The rear structure comprises a wall mount assembly comprising a first kit comprising a first wall mount bracket, a plurality of circularly arranged first trenches, and a plurality of first magnets accommodated by the first trenches, and a second kit removably coupled to the first kit comprising a second wall mount bracket structurally complementary to the first wall mount bracket, a plurality of circularly arranged second trenches, and a plurality of second magnets accommodated by the second trenches. Wherein when the first kit is coupled to the second kit, each of the first magnets is located corresponds to one of the second magnets, and a magnetism of a side of one of the first magnets facing the second kit is opposite to a magnetism of a side of one of the second magnets facing the first kit.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: July 21, 2020
    Assignees: ShenZhen Hongfei Precision Technology Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wen-Pin Wang, Yao-Shih Chung, Shih-Hong Fu
  • Systems and methods for femtosecond laser photorefractive keratectomy
    Patent number: 10716705
    Abstract: Embodiments of this invention generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for photorefractive keratectomy. In an embodiment, an ophthalmic surgical laser system comprises a laser source generating a pulsed laser beam and a laser delivery system delivering the pulsed laser beam to a cornea of an eye. A patient interface couples to and constrains the eye relative to the laser delivery system. A controller controls the laser delivery system to perform an anterior surface volume dissection on the cornea.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: July 21, 2020
    Assignee: AMO Development, LLC
    Inventor: Hong Fu
  • ADJUSTABLE LASER SURGERY SYSTEM
    Publication number: 20200222234
    Abstract: Systems and methods for adjusting an angle of incidence of a laser surgery system include a laser source to produce a laser beam and an optical delivery system to output the laser beam pulses to an object at an adjustable incident angle. A first rotator assembly receives the beam from the laser source along a first beam axis. The first rotator assembly rotates around the first beam axis and the first rotator assembly outputs the beam along a second beam axis different from the first beam axis. A second rotator assembly receives the beam from the first rotator assembly along the second beam axis. The second rotator assembly rotates around the second beam axis. The second rotator assembly follows the rotation of the first rotator assembly and the first rotator assembly is independent of the rotation of the second rotator assembly.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 16, 2020
    Inventors: Hong Fu, Bryant M. Moore