Patents by Inventor Yuhong Huang

Yuhong Huang 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: 10442637
    Abstract: A linear drive system provides a combination of distributed control to increase the number of movers which may be supported in the system and centralized control to reduce the separation distance between movers by grouping movers together and placing a reference mover of the group under central control with remaining movers of the group under distributed control. In addition, in precise working locations, or “synchronization zones,” each of the movers can be temporarily placed under central control to further reduce the separation distance and allow improved coordination with industrial processes or machines in the system.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 15, 2019
    Assignee: MagneMotion, Inc.
    Inventors: Yuhong Huang, Brian M. Perreault, Eric J. Wildi, Mark R. Cooper, Robert H. Schmidt
  • Patent number: 10432117
    Abstract: An improved system and method for monitoring operation of movers in an independent cart system reduces the required communication bandwidth for monitoring operation of movers in a system where control is distributed among multiple controllers spaced along the track. As the mover is travelling along the track segment, each distributed controller monitors at least one operating characteristic of the mover. As a mover travels along the track, each distributed controller transmits the operating characteristic to a successive distributed controller, such the monitored operating characteristic is transmitted along the track as the mover travels along the track. At a reduced rate or upon request from a central controller, each distributed controller may transmit the status of a mover present on the corresponding track segment controlled by that distributed controller to the central controller.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 1, 2019
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Yuhong Huang, Oliver C. Haya, Neil R. Bentley, Robert H. Schmidt, Eric J. Wildi
  • Publication number: 20190084781
    Abstract: A linear drive system provides a combination of distributed control to increase the number of movers which may be supported in the system and centralized control to reduce the separation distance between movers by grouping movers together and placing a reference mover of the group under central control with remaining movers of the group under distributed control. In addition, in precise working locations, or “synchronization zones,” each of the movers can be temporarily placed under central control to further reduce the separation distance and allow improved coordination with industrial processes or machines in the system.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 21, 2019
    Inventors: Yuhong Huang, Brian M. Perreault, Eric J. Wildi, Mark R. Cooper, Robert H. Schmidt
  • Publication number: 20190078950
    Abstract: A method and system for characterizing performance of a mover operating in a linear drive system is disclosed, where the linear drive system includes multiple track segments and where each track segment includes a segment controller. Each segment controller is configured to obtain an in-system frequency response for a mover present along the track segment. An injection sequence is generated within the segment controller, where the injection sequence includes harmonic content across a range of frequencies to be evaluated. The injection sequence is added to a control module within the segment controller, and the segment controller samples and records motion of the mover in response to the injection sequence. A frequency response corresponding to the recorded motion of the mover resulting from the injection sequence is obtained, and may be utilized to identify a resonant operating point or an undesirable level of the harmonic content present in the sampled data.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 14, 2019
    Inventor: Yuhong Huang
  • Publication number: 20190077608
    Abstract: A method and system for detecting and reporting component failures in a linear drive system may identify failed position sensors, failed position magnets, and failed drive coils in the linear drive system. As a mover travels along a track segment in the linear drive system, signals corresponding to the position of the mover and to the current commanded in each drive coil are stored. Analysis of the stored signals identifies whether one of the position sensors along the track segment, one of the position magnets on the movers, or one of the drive coils, used to propel the movers along the track, has failed.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 14, 2019
    Inventor: Yuhong Huang
  • Patent number: 9088256
    Abstract: An amplifier includes a fault protection control circuit biased from the signal pin and a fault protection circuit including a first PMOS transistor and a second PMOS transistor. The sources and bodies of the first and second PMOS transistors can be connected to one another, the drain of the first PMOS transistor can be connected to the amplifier's output, and the drain of the second PMOS transistor can be connected to a signal pin. During normal operating conditions, the fault protection control circuit can turn on the first and second PMOS transistors. However, the fault protection control circuit can turn off the first PMOS transistor and turn on the second PMOS transistor when an overvoltage condition is detected, and can turn on the first PMOS transistor and turn off the second PMOS transistor when an undervoltage condition is detected, even when the integrated circuit is unpowered.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: July 21, 2015
    Assignee: Analog Devices, Inc.
    Inventors: Gavin P. Cosgrave, Javier Alejandro Salcedo, Yuhong Huang, David J. Clarke, Minsheng Li
  • Patent number: 8947841
    Abstract: Harsh electrical environments integrated circuit protection for system-level robustness and methods of forming the same are provided. In one embodiment, a protection system includes dual-polarity high blocking voltage primary and secondary protection devices each electrically connected to a pad. The primary protection device has a current handling capability greater than a current handling capability of the secondary protection devices, and the secondary protection device has a turn-on speed that is faster than a turn-on speed of the primary protection device so as to decrease pad voltage overshoot when a fast transient electrical event occurs on the pad. Additionally, the holding voltage of the primary protection device is less than a holding voltage of the secondary protection device such that once the primary protection device has been activated the primary protection device clamps the pad voltage so as to minimize a flow of high current through the secondary protection device.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: February 3, 2015
    Assignee: Analog Devices, Inc.
    Inventors: Javier A Salcedo, David J. Clarke, Gavin P. Cosgrave, Yuhong Huang
  • Patent number: 8811239
    Abstract: A communication method and device are applicable in a mobile communication system of LTE Type 2 wideband TDD. The method includes: transmitting, by a first communication device, to a second communication device a radio frame, where the radio frame includes a data timeslot for transmitting data, an uplink special timeslot and a downlink special timeslot for carrying synchronizing information, and the data timeslot is shorter than an original data timeslot by a first timeslot, and at least part of the first timeslot is located at the downlink special timeslot.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: August 19, 2014
    Assignee: China Mobile Communication Corporation
    Inventors: Guangyi Liu, Lu Han, Yuhong Huang
  • Publication number: 20140043715
    Abstract: An amplifier includes a fault protection control circuit biased from the signal pin and a fault protection circuit including a first PMOS transistor and a second PMOS transistor. The sources and bodies of the first and second PMOS transistors can be connected to one another, the drain of the first PMOS transistor can be connected to the amplifier's output, and the drain of the second PMOS transistor can be connected to a signal pin. During normal operating conditions, the fault protection control circuit can turn on the first and second PMOS transistors. However, the fault protection control circuit can turn off the first PMOS transistor and turn on the second PMOS transistor when an overvoltage condition is detected, and can turn on the first PMOS transistor and turn off the second PMOS transistor when an undervoltage condition is detected, even when the integrated circuit is unpowered.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 13, 2014
    Applicant: Analog Devices, Inc.
    Inventors: Gavin P. Cosgrave, Javier Alejandro Salcedo, Yuhong Huang, David J. Clarke, Minsheng Li
  • Patent number: 8514695
    Abstract: A method of wideband radio transmission is disclosed, the method includes the following steps: obtaining the parallel data symbols; encoding the obtaining parallel data symbols respectively; superposing the encoded data symbols; performing the fast Fourier inverse transform for the superposed data symbols and transmitting them. Applying the solution, the transmission efficiency and the transmission dependability of the OFDM system is raised. An apparatus for wideband radio transmission and a transmission system are also disclosed.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: August 20, 2013
    Assignee: China Mobile Communications Corporation
    Inventors: Guangyi Liu, Lu Han, Qixing Wang, Yuhong Huang
  • Publication number: 20130208385
    Abstract: Harsh electrical environments integrated circuit protection for system-level robustness and methods of forming the same are provided. In one embodiment, a protection system includes dual-polarity high blocking voltage primary and secondary protection devices each electrically connected to a pad. The primary protection device has a current handling capability greater than a current handling capability of the secondary protection devices, and the secondary protection device has a turn-on speed that is faster than a turn-on speed of the primary protection device so as to decrease pad voltage overshoot when a fast transient electrical event occurs on the pad. Additionally, the holding voltage of the primary protection device is less than a holding voltage of the secondary protection device such that once the primary protection device has been activated the primary protection device clamps the pad voltage so as to minimize a flow of high current through the secondary protection device.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 15, 2013
    Applicant: Analog Devices, Inc.
    Inventors: Javier A. Salcedo, David J. Clarke, Gavin P. Cosgrave, Yuhong Huang
  • Publication number: 20120281599
    Abstract: A communication method and device are applicable in a mobile communication system of LTE Type 2 wideband TDD. The method includes: transmitting, by a first communication device, to a second communication device a radio frame, where the radio frame includes a data timeslot for transmitting data, an uplink special timeslot and a downlink special timeslot for carrying synchronizing information, and the data timeslot is shorter than an original data timeslot by a first timeslot, and at least part of the first timeslot is located at the downlink special timeslot.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 8, 2012
    Applicant: CHINA MOBILE COMMUNICATIONS CORPORATION
    Inventors: Guangyi Liu, Lu Han, Yuhong Huang
  • Patent number: 8295382
    Abstract: An antenna multiplexing system and a method of a smart antenna and a Multiple-Input Multiple-Output antenna are provided, wherein the system includes a MIMO antenna array and a smart antenna array, the smart antenna array includes several groups of antenna array elements in which the distance between neighbor antenna array elements is less than or equal to one half of wavelength, and the smart antenna array comprises at least two groups of antenna array elements with the coherence sufficient for the requirement of the MIMO applications. The method includes: in accordance with the type of the data to be transmitted, determining a transmitting mode and processing the data to be transmitted accordingly, and in accordance with the transmitting mode, controlling the MIMO antenna array or smart antenna array, so as to transmitting the data to the mobile terminal.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 23, 2012
    Assignee: China Mobile Communications Corporation
    Inventors: Xiaodong Xu, Guangyi Liu, Guanghui Cheng, Yuhong Huang, Zhigang Yan, Chunfeng Cui
  • Patent number: 8228828
    Abstract: A communication method and device are applicable in a mobile communication system of LTE Type2 wideband TDD. The method includes transmitting, by a first communication device, to a second communication device a radio frame, where each half-frame of the radio frame including a data timeslot for transmitting data, an uplink special timeslot and a Downlink special timeslot for carrying synchronizing information, and the data timeslot is shorter than an original data timeslot by a first timeslot and/or the uplink special timeslot is shorter than an original uplink special timeslot by a second timeslot; and a part of the first timeslot or the second timeslot or the combination of the first timeslot and the second timeslot, having the length of one orthogonal frequency division multiplex symbol, carries a secondary synchronous channel.
    Type: Grant
    Filed: September 27, 2008
    Date of Patent: July 24, 2012
    Assignee: China Mobile Communications Corporation
    Inventors: Guangyi Liu, Lu Han, Yuhong Huang
  • Patent number: 8134504
    Abstract: A community antenna system in a closed loop mode and a method thereof are provided, the system includes two groups of pre-weighting processing modules, beamforming modules and antenna arrays connected in turn. The method includes the following processes: performing the pre-weighting processing on a transmission signal respectively according to the channel information corresponding to each of two antenna arrays; determining beamforming weight vectors according to two groups of steering vectors corresponding to the two antenna arrays, and performing weighting processing on the two pre-weighting processed transmission signals respectively to form two directional beams directed to the receiving antenna of a target mobile terminal; and transmitting the two directional beams via two antenna arrays with orthogonal polarization modes respectively.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: March 13, 2012
    Assignee: China Mobile Communications Corporation
    Inventors: Xiaodong Xu, Guangyi Liu, Chunfeng Cui, Zhigang Yan, Yuhong Huang
  • Patent number: 8055264
    Abstract: Disclosed is a method for controlling handoff by a network infrastructure, which includes collecting channel information and transmitting the channel information to a Mobile Terminal (MT) and a method for controlling handoff by a MT, which includes receiving channel information collected by a network infrastructure and making a handoff decision according to the channel information. The present invention also discloses apparatuses for controlling handoff. Applying the present invention, the handoff decision will be made based on both the information collected by the network infrastructure and the information collected by the MT, therefore blind handoff is reduced, the network workloads are balanced and the QoS is assured before and after the handoff.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: November 8, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhonghui Yao, Wenguang Lan, Yu Liu, Jing Li, Wenhui Zhou, Yuhong Huang
  • Patent number: 8036235
    Abstract: The present invention relates to a home gateway device. The home gateway device comprises a main processor generate information process signals and control signals, a computer bus signal Ethernet adapter unit connected to the main processor to translate the signals between computer bus signals and Ethernet signals, an Ethernet frame process unit connected to the computer bus signal Ethernet adapter unit to forward the received Ethernet frame based on a prearranged policy, an inner interface unit connected to the Ethernet frame process unit to connect interior networking devices, and an outer communication module connected to the main processor and the Ethernet frame process unit. The centralized control of the home gateway device of the present invention can decrease the requirement that the household appliances should be intellectualized, thereby achieving more flexible control and reducing the cost.
    Type: Grant
    Filed: April 29, 2007
    Date of Patent: October 11, 2011
    Assignee: China Mobile Communications Corporation
    Inventors: Han Li, Yan Zhang, Jinglei Liu, Congxing Ouyang, Bing Wei, Yuhong Huang
  • Patent number: 7951349
    Abstract: A method and system for storing and generating hydrogen. The method comprises generating hydrogen and heat from the reaction of a metal or metal compound with water. The heat generated from this reaction may then be converted to other forms of energy such as by passing the heat through a thermal electric device to recover electrical energy for storage in a battery. In an alternative and preferred embodiment, the heat is used to drive additional reactions for generating more hydrogen and is preferably used to drive an endothermic dehydrogenation reaction resulting in increased hydrogen generation and consumption of the heat.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: May 31, 2011
    Assignee: The California Institute of Technology
    Inventors: Andrew Kindler, Sri R. Narayanan, Yuhong Huang
  • Publication number: 20100296386
    Abstract: A method of wideband radio transmission is disclosed, the method includes the following steps: obtaining the parallel data symbols; encoding the obtaining parallel data symbols respectively; superposing the encoded data symbols; performing the fast Fourier inverse transform for the superposed data symbols and transmitting them. Applying the solution, the transmission efficiency and the transmission dependability of the OFDM system is raised. An apparatus for wideband radio transmission and a transmission system are also disclosed.
    Type: Application
    Filed: November 21, 2008
    Publication date: November 25, 2010
    Applicant: CHINA MOBILE COMMUNICATIONS CORPORATION
    Inventors: Guangyi Liu, Lu Han, Qixing Wang, Yuhong Huang
  • Publication number: 20100284427
    Abstract: A method, a communication device for transmitting data in a communication system, and the communication system. The method includes: detecting the current channel quality; determining the overlapping coding times corresponding to the detected channel quality according to the corresponding relation between the channel quality and the overlapping coding frequency; performing coding operation of overlapping coding multiplexing technique to the data which is to be transmitted using the determined overlapping coding times and transmitting the coded data. The method improves the reliability of data transmission under the circumstance of channel quality being relatively poor, and improves the transmission efficiency, avoids the resource waste under the circumstance of channel quality being better.
    Type: Application
    Filed: November 21, 2008
    Publication date: November 11, 2010
    Inventors: Guangyi Liu, Lu Han, Qixing Wang, Yuhong Huang