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Gu, MI

Cheng Gu, Okemos, MI US

Patent application numberDescriptionPublished
20110130575SYNTHESIS OF CLAY-TEMPLATED SUBNANO-SIZED ZERO VALENT IRON (ZVI) PARTICLES, CLAYS CONTAINING SAME, AND USE OF BOTH IN CONTAMINANT TREATMENTS - A clay comprising a 2:1 aluminosilicate clay having negative charge sites, the 2:1 aluminosilicate clay containing subnano-sized zero valent iron (ZVI) particles distributed on clay surfaces is provided. In one embodiment, at least some or all of the particles have a cross-section of five (06-02-2011

Fangming Gu, Rochester Hills, MI US

Patent application numberDescriptionPublished
20090031181Automated root cause identification of logic controller failure - A method, system, and computer program product for automated root cause identification of a failure of a logic controller have been provided. The method includes receiving logic controller failure information, receiving a logic model of logic code for the logic controller, and mapping the logic controller failure information to the logic model to identify a logic failure model state. The method further includes determining a potential trigger of the failure of the logic controller as a root cause via tracing through at least one path in the logic model to reach the logic failure model state. The method also includes identifying the root cause in the logic code via mapping the root cause from the logic model to the logic code, and outputting the logic code with the identified root cause of the failure of the logic controller.01-29-2009
20090088884MANUFACTURING AUTOMATION SYSTEM COMPONENTS COMPATIBILITY AND PERFORMANCE TESTING WITH INTEGRATED VIRTUAL AND REAL ENVIRONMENT - A system and method for providing an integrated virtual and real emulation environment for a manufacturing process to provide component compatibility testing and system performance prediction. In one embodiment, a real manufacturing system includes one or more real components that are controlled by a programmable logic controller. The real component can be replaced with a virtual component to determine whether it is compatible in the process, where the programmable controller sends signals to and receive signals from the virtual component as if it were the real component. For system performance prediction, a virtual manufacturing process is provided that includes virtual components where the virtual process is controlled by a programmable logic control as if it were a real process to determine the performance of a real system using the virtual process.04-02-2009
20090088885METHODS OF INTEGRATING REAL AND VIRTUAL WORLD USING VIRTUAL SENSOR/ACTUATOR - An integrated real and virtual manufacturing automation system that employs a programmable logic controller that controls part flow between a real machine in the real world part of the system and a virtual machine in the virtual world part of the system using virtually coupled sensors and actuators. A real world sensor senses the position of the real world machine and a real world actuator actuates the real world machine. Likewise, a virtual world sensor senses the position of the virtual world machine and a virtual world actuator actuates the virtual world machine. An interface device transfers signals between the virtual world part of the system and the real world part of the system, and an input/output device processes signals sent to the programmable logic controller and signals sent from the programmable logic controller.04-02-2009
20090089700METHODS OF INTEGRATING REAL AND VIRTUAL WORLD USING PHYSICAL SENSOR/ACTUATOR - A system and method for integrating a real and virtual manufacturing automation system that provides a part flow between a virtual world part of the system including virtual world components and a real world part of the system including real world components. The system includes an interface device for transferring signals between the virtual world part of the system and the real world part of the system, a programmable logic controller for controlling the operation of the system and an input/output device that processes signals sent to the programmable logic controller and signals sent from the programmable logic controller. The programmable logic controller controls the operation of the system where sensors and actuators coupled between the virtual world part of the system and the real world part of the system are physically coupled.04-02-2009
20090112343FRAMEWORK FOR AUTOMATIC GENERATION OF SEQUENCE OF OPERATIONS - A method for generation of a sequence of operations for a manufacturing process including modeling the manufacturing process through a finite state machine to create a sequence of operations generator operative to generate a list of sequences of operations for the manufacturing process and utilizing the sequence of operations generator to input process information and automatically generate a list of sequences of operations.04-30-2009
20090112350PROCESS FOR GENERATING CONTROL SEQUENCE OF OPERATIONS - A method for generation of a control code set for a manufacturing process includes generating a list of sequences of operations with an automatic sequence of operations generator, selecting an optimized sequence of operations from said list of sequences of operations, and utilizing said optimized sequence of operations to generate said control code set.04-30-2009
20100023534Computer-aided safety logic certification - A method is provided for certifying safety logic code in a manufacturing automation system. A plurality of safety related test scenarios is provided for testing the safety logic code in the manufacturing automation system. A processing unit is configured for communication with the logic controller. The processing unit generates logic input signals in response to the plurality of safety related test scenarios and provides the logic input signals to the logic controller. Execution of the plurality of safety related test scenarios via the safety logic code is triggered in response to the processing unit providing the logic input signals to the logic controller. Response output signals are generated by the logic controller in response to the safety related test scenarios being executed by the safety logic code. Compliancy of the safety logic code is determined by evaluating response output signals and associated logic input signals to a predetermined standard.01-28-2010
20100174395INTEGRATED TESTING SYSTEM AND METHOD FOR VALIDATION OF A MANUFACTURING AUTOMATION SYSTEM - A method of testing a physical manufacturing automation system for manufactured work pieces is provided via a testing system and includes connecting a computer-simulated manufacturing automation system to a controller of the physical manufacturing automation system, wherein the computer-simulated manufacturing automation system is configured to represent a portion of the physical manufacturing automation system, including a simulated work piece. The method then includes concurrently running the physical manufacturing automation system and the computer-simulated manufacturing automation system via the controller, with the physical automation system running in the absence of the physical work pieces.07-08-2010
20100229151PLATFORM-INDEPENDENT METHOD AND SYSTEM FOR DEPLOYING CONTROL LOGIC PROGRAMMING - A system for generating platform-specific control logic implementation code for execution on a programmable logic controller (PLC) platform includes a plurality of processing layers. A first layer models generic control requirements as a unitary mathematical model (UMM). A second layer translates the UMM into generic control code describing a platform-independent set of generic control functions following an open structured language. A third layer automatically transforms the generic control functions into the platform-specific implementation code executable on different PLC platforms. A method of generating the implementation code includes modeling control requirements as a mathematical model, transforming the model into platform-independent control code describing a predetermined set of generic control functions using Extensible Markup Language (XML) schema, and automatically transforming the generic control functions into the implementation code.09-09-2010
20100286797METHOD AND SYSTEM FOR TESTING SAFETY AUTOMATION LOGIC OF A MANUFACTURING CELL - A method for testing the safety automation logic used in a manufacturing cell includes recording control signals of a safety-related component such as an E-Stop, light curtain, gate lock, or a safety mat using a host machine, and then disconnecting the component from the host machine. The recorded test signals are transmitted to an automation controller in accordance with a test scenario from a test scenario generator module (TSGM) to emulate operation of the component. The automation logic may be certified using the playback of the recorded test signals. A system for testing the safety automation logic includes the controller, host machine, and TSGM. The host machine records the control signals and plays back the test signals on the controller to emulate operation of the component. The automation control logic may be certified using the test signals, e.g., by comparing these to the test specification or standard.11-11-2010

Patent applications by Fangming Gu, Rochester Hills, MI US

Jie Gu, Clarkston, MI US

Patent application numberDescriptionPublished
20120130531AUTOMATIC CALIBRATION AND COMPENSATION FOR A CNC MACHINE TABLE AND AN ASSOCIATED PROBE - A method for calibrating a CNC machine comprises mounting a gauge to a table of the CNC machine and calibrating a probe to the gauge mounted on the CNC machine. A total deviation of the probe and an actual table center position from a nominal table center position for a coordinate system associated with the CNC machine are determined. A controller operatively connected to the CNC machine and the probe is programmed to compensate for the total deviation.05-24-2012

Tieer Gu, Troy, MI US

Patent application numberDescriptionPublished
20090053843Method of making a TFT array with photo-imageable insulating layer over address lines - This invention is related to a thin film transistor (TFT) array and method of making same, for use in an active matrix liquid crystal display (AMLCD) having a high pixel aperture ratio. The TFT array and corresponding display are made by forming the TFTs and corresponding address lines on a substrate, coating the address lines and TFTs with a photo-imageable insulating layer which acts as a negative resist, exposing portions of the insulating layer with UV light which are to remain on the substrate, removing non-exposed areas of the insulating layer so as to form contact vias, and depositing pixel electrodes on the substrate over the insulating layer so that the pixel electrodes contact respective TFT source electrodes through the contact vias. The resulting display has an increased pixel aperture ratio because the pixel electrodes are formed over the insulating layer so as to overlap portions of the array address lines.02-26-2009
20090256983LCD with increased pixel opening sizes - A liquid crystal display having an increased pixel aperture ratio is disclosed along with a method of making same. An array of a-Si TFTs is deposited on a transparent substrate. Subsequently, an organic insulating layer (e.g. Benzocyclobutene) and a corresponding array of pixel electrodes are deposited over the TFT array so that the pixel electrodes overlap the display address lines thereby increasing the display's pixel aperture ratio. The low dielectric constant ∈ (e.g. about 2.7) and relatively high thickness (e.g. greater than about 1.5 μm) of the insulating layer reduce the pixel electrode-address line parasitic capacitance C10-15-2009

Xinhua Gu, Ann Arbor, MI US

Patent application numberDescriptionPublished
20080273558High Power Fiber Chirped Pulse Amplification System Utilizing Telecom-Type Components - An erbium fiber (or erbium-ytterbium) based chirped pulse amplification system is illustrated. The use of fiber amplifiers operating in the telecommunications window enables the implementation of telecommunications components and telecommunications compatible assembly procedures with superior mechanical stability.11-06-2008
20090097515YB: AND ND: MODE-LOCKED OSCILLATORS AND FIBER SYSTEMS INCORPORATED IN SOLID-STATE SHORT PULSE LASER SYSTEMS - The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.04-16-2009
20090285249HIGH POWER FIBER CHIRPED PULSE AMPLIFICATION SYSTEM UTILIZING TELECOM-TYPE COMPONENTS - A chirped pulse amplifier (CPA) system having a mode-locked laser and a high-speed pulse selector, wherein the pulse selector modulates output pulses based upon an applied modulation voltage. A pulse selector may be an integrated electro-optic modulator, for example a LiNbO11-19-2009
20100188736MODULAR FIBER-BASED CHIRPED PULSE AMPLIFICATION SYSTEM - A modular ultrafast pulse laser system is constructed of individually pre-tested components manufactured as modules. The individual modules include an oscillator, pre-amplifier and power amplifier stages, a non-linear amplifier, and a stretcher and compressor. The individual modules can typically be connected by means of simple fiber splices.07-29-2010
20120008649HIGH POWER SHORT PULSE FIBER LASER - A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs.01-12-2012

Patent applications by Xinhua Gu, Ann Arbor, MI US

Yajun Gu, Lansing, MI US

Patent application numberDescriptionPublished
20100034984Microwave plasma reactors - New and improved microwave plasma assisted reactors, for example chemical vapor deposition (MPCVD) reactors, are disclosed. The disclosed microwave plasma assisted reactors operate at pressures ranging from about 10 Torr to about 760 Torr. The disclosed microwave plasma assisted reactors include a movable lower sliding short and/or a reduced diameter conductive stage in a coaxial cavity of a plasma chamber. For a particular application, the lower sliding short position and/or the conductive stage diameter can be variably selected such that, relative to conventional reactors, the reactors can be tuned to operate over larger substrate areas, operate at higher pressures, and discharge absorbed power densities with increased diamond synthesis rates (carats per hour) and increased deposition uniformity.02-11-2010