Patents by Inventor Jim Zhang

Jim Zhang 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: 11929021
    Abstract: Systems and methods are provided for using an optical crosstalk compensation (OXTC) block to compensate for optical crosstalk resulted from a combination of viewing angle change across field of view (FoV), color filter (CF) crosstalk, and the OLED various angle color shift (VACS) of a foveated electronic display. One or more two-dimensional (2D) OXTC factor maps are used to determine OXTC factors for input image data of the OXTC block, and the OXTC factors are updated on a per frame basis. Offset values are determined using a parallel architecture and used to determine the OXTC factors. Compensation weights are used to determine weighted OXTC factors to improve processing efficiency. Output image data are obtained by applying the weighted OXTC factors to the input image data.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: March 12, 2024
    Assignee: Apple Inc.
    Inventors: Shereef Shehata, Jim C Chou, Sheng Zhang, Shengchang Cai
  • Publication number: 20210126435
    Abstract: Apparatus include a first laser diode situated to emit a beam from an exit facet along an optical axis, the beam as emitted having perpendicular fast and slow axes perpendicular to the optical axis, a first fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the first laser diode, a second laser diode situated to emit a beam from an exit facet of the second laser diode along an optical axis parallel to the optical axis of the first laser diode and with a slow axis in a common plane with the slow axis of the first laser diode, and a second fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet of the second laser diode and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the second laser diode.
    Type: Application
    Filed: November 9, 2020
    Publication date: April 29, 2021
    Applicant: nLIGHT, Inc.
    Inventors: Zhigang Chen, Manoj Kanskar, Shuang Li, Jim Zhang, Mark DeFranza, David Martin Hemenway, Eric Martin, Jay Small
  • Patent number: 10833482
    Abstract: Apparatus include a first laser diode situated to emit a beam from an exit facet along an optical axis, the beam as emitted having perpendicular fast and slow axes perpendicular to the optical axis, a first fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the first laser diode, a second laser diode situated to emit a beam from an exit facet of the second laser diode along an optical axis parallel to the optical axis of the first laser diode and with a slow axis in a common plane with the slow axis of the first laser diode, and a second fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet of the second laser diode and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the second laser diode.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: November 10, 2020
    Assignee: nLIGHT, Inc.
    Inventors: Zhigang Chen, Manoj Kanskar, Shuang Li, Jim Zhang, Mark DeFranza, David Martin Hemenway, Eric Martin, Jay Small
  • Publication number: 20190252863
    Abstract: Apparatus include a first laser diode situated to emit a beam from an exit facet along an optical axis, the beam as emitted having perpendicular fast and slow axes perpendicular to the optical axis, a first fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the first laser diode, a second laser diode situated to emit a beam from an exit facet of the second laser diode along an optical axis parallel to the optical axis of the first laser diode and with a slow axis in a common plane with the slow axis of the first laser diode, and a second fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet of the second laser diode and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the second laser diode.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 15, 2019
    Applicant: nLIGHT, Inc.
    Inventors: Zhigang Chen, Manoj Kanskar, Shuang Li, Jim Zhang, Mark DeFranza, David Martin Hemenway, Eric Martin, Jay Small
  • Patent number: 9588139
    Abstract: A probe card assembly can comprise a guide plate comprising probe guides for holding probes in predetermined positions. The probe card assembly can also comprise a wiring structure attached to the guide plate so that connection tips of the probes are positioned against and attached to contacts on the wiring structure. The attachment of the guide plate to the wiring structure can allow the wiring structure to expand or contract at a greater rate than the guide plate. The probes can include compliant elements that fail upon high electrical current and thermal stresses located away from the contact tips.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: March 7, 2017
    Assignee: FormFactor, Inc.
    Inventors: Li Fan, Darcy K. Kelly-Greene, Edward J. Milovic, Gensaku Nagai, Mukesh K. Selvaraj, Jim Zhang
  • Patent number: 9103723
    Abstract: Systems and methods presented herein provide for optical surveillance using modulated lasers, or other forms of light, and optical detection. In one embodiment, an optical surveillance system includes a light source, such as a laser or light emitting diode, and a signal generator operable to modulate the light source. The system also includes a detector operable to detect the modulated light source and a processor communicatively coupled to the detector to distinguish the modulated light source from other detected light based on the modulating waveform of the modulated light source. The processor is also operable to determine a presence of an object between the laser and the detector based on an obscuration of the laser pulses on the detector.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: August 11, 2015
    Assignee: APPLIED ENERGETICS, INC.
    Inventors: Joseph C. Hayden, Jiamin (Jim) Zhang, Paul B. Lundquist
  • Publication number: 20140327461
    Abstract: A probe card assembly can comprise a guide plate comprising probe guides for holding probes in predetermined positions. The probe card assembly can also comprise a wiring structure attached to the guide plate so that connection tips of the probes are positioned against and attached to contacts on the wiring structure. The attachment of the guide plate to the wiring structure can allow the wiring structure to expand or contract at a greater rate than the guide plate. The probes can include compliant elements that fail upon high electrical current and thermal stresses located away from the contact tips.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 6, 2014
    Applicant: FormFactor, Inc.
    Inventors: Li Fan, Darcy K. Kelly-Greene, Edward J. Milovic, Gensaku Nagai, Mukesh K. Selvaraj, Jim Zhang
  • Patent number: 8582612
    Abstract: The various laser architectures described herein provide increased gain of optical energy as well as compensation of optical phase distortions in a thin disk gain medium. An optical amplifier presented herein provides for scalable high energy extraction and gains based on a number of passes of the signal beam through a gain medium. Multiple, spatially separate, optical paths may also be passed through the same gain region to provide gain clearing by splitting off a small percentage of an output pulse and sending it back through the amplifier along a slightly different path. By clearing out the residual gain, uniform signal amplitudes can be obtained.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 12, 2013
    Assignee: Applied Energetics, Inc.
    Inventors: Paul B. Lundquist, Hector Martin, Eric Nelson-Melby, Jiamin (Jim) Zhang
  • Publication number: 20120311913
    Abstract: A telescopic sighting device includes a tubular scope, an objective lens, an ocular assembly, and a laser locator. The objective lens is mounted at a bell portion of the tubular scope for focusing light at a focal point in the body portion of the tubular scope. The ocular assembly is provided at an eyepiece portion of the tubular scope for magnifying the light from focused at the focal point. Furthermore, the laser locator is mounted at the bell portion of the tubular scope at a position adjacent to the objective lens, and comprises a laser emitter arranged to generate a laser beam toward a target, in such a manner that a user is able to observe a laser indicator produced by the laser beam on the target through the ocular assembly so as to enhance an accuracy of locating the target by the telescopic sighting device.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 13, 2012
    Inventors: Carson Cheng, Jim Zhang
  • Patent number: 8327573
    Abstract: A telescopic sighting device includes a tubular scope, an objective lens, an ocular assembly, and a laser locator. The objective lens is mounted at a bell portion of the tubular scope for focusing light at a focal point in the body portion of the tubular scope. The ocular assembly is provided at an eyepiece portion of the tubular scope for magnifying the light from focused at the focal point. Furthermore, the laser locator is mounted at the bell portion of the tubular scope at a position adjacent to the objective lens, and comprises a laser emitter arranged to generate a laser beam toward a target, in such a manner that a user is able to observe a laser indicator produced by the laser beam on the target through the ocular assembly so as to enhance an accuracy of locating the target by the telescopic sighting device.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 11, 2012
    Assignees: Nantong Universal Optical Instrument Co., Ltd.
    Inventors: Carson Cheng, Jim Zhang
  • Publication number: 20120213236
    Abstract: The various laser architectures described herein provide increased gain of optical energy as well as compensation of optical phase distortions in a thin disk gain medium. An optical amplifier presented herein provides for scalable high energy extraction and gains based on a number of passes of the signal beam through a gain medium. Multiple, spatially separate, optical paths may also be passed through the same gain region to provide gain clearing by splitting off a small percentage of an output pulse and sending it back through the amplifier along a slightly different path. By clearing out the residual gain, uniform signal amplitudes can be obtained.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 23, 2012
    Inventors: Paul B. Lundquist, Hector Martin, Eric Nelson-Melby, Jiamin (Jim) Zhang
  • Publication number: 20100080254
    Abstract: The systems and methods herein provide for tuning an optical characteristic of a gain medium for a laser system. For example, a system may include a thermal tuner that dynamically controls the temperature of the gain medium to compensate for thermal mechanical distortions of the gain medium caused by laser energy in the gain medium. In doing so, the tuner may dynamically adjust a coolant temperature and/or a coolant flow rate proximate to the gain medium. Accordingly, heat is dynamically removed from the gain medium so as to adjust for optical distortions in the gain medium. Such a dynamic heat removal may provide a laser system designer with the ability to generate laser energy with controllable predetermined optical wavefronts (e.g., a flat optical wavefront).
    Type: Application
    Filed: September 18, 2009
    Publication date: April 1, 2010
    Inventors: Paul B. Lundquist, Stephen McCahon, Jiamin (Jim) Zhang
  • Publication number: 20080111066
    Abstract: New and improved mass spectrometry methods of determining the pharmacokinetic fate of a compound of interest are described. The methods involve PEGylating the compound, administering to a biological system, withdrawing an analyte from said system, and subjecting said analyte to in-source ionization and fragmentation into PEG ions that are then measured as a surrogate marker or markers for the presence and/or amount of said compound in said analyte.
    Type: Application
    Filed: August 31, 2006
    Publication date: May 15, 2008
    Inventors: Jing Jim Zhang, Douglas L. Cole