Patents by Inventor Ligong Wang

Ligong Wang 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).

  • Publication number: 20180067528
    Abstract: Systems and methods are provided that employ voltage regulated management of battery backup for information handling systems, such as blade server systems. The disclosed systems and methods may be implemented for an information handling system using multiple battery subsystems in a single battery backup unit (BBU) or using multiple battery backup units, and the multiple battery subsystems or BBUs may be individually controlled and managed using defined protocols and architectures.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 8, 2018
    Inventors: Ligong Wang, John J. Breen
  • Publication number: 20170212169
    Abstract: A method used for determining the capacity of a battery. The method includes determining, via a controller, if the battery has a first capacity sufficient to support a conditioning cycle. In response to determining that the battery has the first capacity sufficient to support the conditioning cycle, the conditioning cycle is activated. The method includes partially discharging the battery at a constant rate while measuring a plurality of battery parameters. A second capacity of the battery is estimated based on the battery parameters measured at the constant discharge rate. The method increases estimation accuracy of the battery's capacity.
    Type: Application
    Filed: January 27, 2016
    Publication date: July 27, 2017
    Applicant: DELL PRODUCTS, L.P.
    Inventors: LIGONG WANG, DIT CHAROEN
  • Publication number: 20170136119
    Abstract: The present invention provides a pharmaceutical composition for inducing immune response in a subject, comprising: (a) an antigen with a concentration ranging from 1 ?g/ml to 100 ?g/ml; (b) CpG oligonucleotides having a sequence of 5?-tcgacgttcgtcgttcgtcgttc-3?, with a concentration ranging from 25 ?g/ml to 500 ?g/ml, and (c) an aluminium adjuvant with a concentration ranging from 25 ?g/ml to 500 ?g/ml. Such pharmaceutical composition can induce or boost immune response against antigen in the subject.
    Type: Application
    Filed: June 12, 2015
    Publication date: May 18, 2017
    Inventors: Ligong Wang, Yan Shao
  • Publication number: 20160172719
    Abstract: Desktop power use behavior may be detected while a portable information handling system or any other type of battery powered information handling system is operating on external power such as an AC adapter. The desktop power use behavior may be detected by monitoring one or more power usage parameters to detect usage characteristics that indicate a battery powered information handling system is being operated in a manner that is similar to operation of a desktop information handling system. Upon detection of desktop behavior, one or more processing devices of the information handling system may respond by taking one or more desktop use response actions.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Inventors: Chia-Fa Chang, Hua Chung, Ligong Wang, Yung Fa Chueh
  • Patent number: 9300015
    Abstract: Desktop power use behavior may be detected while a portable information handling system or any other type of battery powered information handling, system is operating on external power such as an AC adapter. The desktop power use behavior may be detected by monitoring one or more power usage parameters to detect usage characteristics that indicate a battery powered information handling system is being operated in a manner that is similar to operation of a desktop information handling system. Upon detection of desktop behavior, one or more processing devices of the information handling system may respond by taking one or more desktop use response actions.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: March 29, 2016
    Assignee: Dell Products LP
    Inventors: Chia-Fa Chang, Hua Chung, Ligong Wang, Yung Fa Chueh
  • Patent number: 9178368
    Abstract: An information handling system battery has first and second protective circuits to detect and address faults for a first charge applied from an external power source to an integrated charger and a second charge applied from a charger of an information handling system to battery cells. If the first protective circuit detects a fault associated with the integrated charger, charging of the battery cells is still supported by inserting the battery in an information handling system. If the second protective circuit detects a fault, the battery becomes inoperative by disconnecting the battery cells. An indicator, such as LEDs on the battery casing, indicates whether a soft or hard fault has occurred.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: November 3, 2015
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, Gerald Courtney, Jr., Yin-Cheung Ma
  • Publication number: 20150207344
    Abstract: An energy management module (EMM) configured to electrically interconnect at least one first energy storage unit, at least one second energy storage unit, and a power bus; and configured to select a mode of operation. Each first energy storage unit has a first permissible charge rate; each second energy storage unit has a second permissible charge rate less than the first permissible charge rate. Under an energy storage mode of operation, the EMM is configured to allocate electrical current from the power bus among the first and second energy storage units. Under an energy balance mode of operation, the EMM is configured to transfer electrical charge among the first energy storage unit(s) and the second energy storage unit(s). Under an energy discharge mode of operation, the EMM is configured to deliver electrical current from the first and second energy storage units to the power bus.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 23, 2015
    Applicant: General Electric Company
    Inventors: Ligong WANG, Henry T. YOUNG, Ajith K. KUMAR, Ord A. RANDOLPH
  • Patent number: 8674658
    Abstract: Plural batteries installed in an information handling system are simultaneously charged in a constant current mode to a predetermined charge and then in a constant voltage mode to a full charge to provide a reduced charge time and improved battery life. A current regulator integrated in a battery casing monitors current applied at the battery to maintain constant voltage charging. Voltage to ground of the other batteries is monitored to adjust current at those batteries where voltages in all of the battery cells are maintained substantially equal during charging.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: March 18, 2014
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, John Breen
  • Publication number: 20140035515
    Abstract: An information handling system battery has first and second protective circuits to detect and address faults for a first charge applied from an external power source to an integrated charger and a second charge applied from a charger of an information handling system to battery cells. If the first protective circuit detects a fault associated with the integrated charger, charging of the battery cells is still supported by inserting the battery in an information handling system. If the second protective circuit detects a fault, the battery becomes inoperative by disconnecting the battery cells. An indicator, such as LEDs on the battery casing, indicates whether a soft or hard fault has occurred.
    Type: Application
    Filed: October 1, 2013
    Publication date: February 6, 2014
    Applicant: Dell Products L.P.
    Inventors: Ligong Wang, Gerald Courtney, JR., Yin-Cheung Ma
  • Patent number: 8552689
    Abstract: An information handling system battery has first and second protective circuits to detect and address faults for a first charge applied from an external power source to an integrated charger and a second charge applied from a charger of an information handling system to battery cells. If the first protective circuit detects a fault associated with the integrated charger, charging of the battery cells is still supported by inserting the battery in an information handling system. If the second protective circuit detects a fault, the battery becomes inoperative by disconnecting the battery cells. An indicator, such as LEDs on the battery casing, indicates whether a soft or hard fault has occurred.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: October 8, 2013
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, Gerald Courtney, Jr., Yin-Cheung Ma
  • Patent number: 8370659
    Abstract: Systems and methods that may be implemented for time-based management of storage memory controller (e.g., RAID controller) backup battery life in information handling systems by limiting the backup battery system operation time in order to save energy, reduce the impact of leakage current, and prolong memory controller backup battery shelf life while at the same time meeting requirements of back-up time for storage/server applications. The disclosed systems and methods may be implemented, for example, by providing a battery system controller that implements a pre-set memory controller backup battery operation time, in combination with a hardware-controlled mechanism that extends backup battery system operation time by disabling one or more current leakage paths within the storage memory controller circuitry.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: February 5, 2013
    Assignee: Dell Products L.P.
    Inventors: Shane Chiasson, Anand Nunna, Clark C. Bruderer, Ligong Wang
  • Patent number: 8307222
    Abstract: The number of battery cells connected together in a main battery conductor path of a multiple cell battery system of an information handling system may be varied in real time based on one or more operating conditions (e.g., system load power consumption, battery cell failure, etc.) of the information handling system. Defective battery cells may be bypassed such that the defective battery system may continue to operate and power an information handling system at a lower voltage, e.g., either temporarily, permanently or temporarily until the user procures a suitable replacement battery system. Interconnection of cells of a non-defective multiple cell battery system may also be selectively re-arranged to vary battery system voltage at particular times or during particular information handling system operation modes.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: November 6, 2012
    Assignee: Dell Products, LP
    Inventors: Ligong Wang, Qing Wei Zhu, Qing Shun Yang, Wei Jian Zhu
  • Patent number: 8154255
    Abstract: Systems and methods for waking up a battery system (e.g., battery pack such as a smart battery pack) installed in an information handling system from a shipping mode in response to the occurrence of one of at least two detected events. The first of these of these at least two events is detection of the battery system being removed and reinstalled into operational electrical contact with the information handling system, and the second of these at least two events is the activation of a user input device provided for the battery system.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: April 10, 2012
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, Yung Fa Chueh, Wen-Yung Chang, Chia-Fa Chang, Tun-Chieh Liang
  • Patent number: 8138722
    Abstract: In some embodiments, a method for activating an information handling system battery without using AC power is provided. One or more switches associated with a battery are maintained in a ship mode state during shipping of the information handling system such that the battery remains disconnected from particular information handling system components during shipping. In response to a user input, a power-on device generates and communicates a power-on signal to a battery management unit (BMU) of the battery. In response to receiving the power-on signal, the BMU activates the one or more switches from the ship mode state, which connects the battery to the particular information handling system components. The power-on device generates and communicates the power-on signal to the BMU, and the BMU activates the one or more switches from the ship mode state, while the information handling system is not connected to any AC power source.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: March 20, 2012
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, David Toland, Fu Sheng Tsai
  • Patent number: 8129946
    Abstract: Methods and systems are disclosed for utilizing a memory control circuit for controlling transfer of data to and from a memory system. A memory control circuit with a back up battery and control circuits is provided. Battery health is determined through a discharge cycle of the back up battery. A power supply generated from the back up battery is provided to circuitry of the memory control card during normal operations of the memory control circuit during a non-power loss state. The power supplied from the back up battery during the non-power loss state of the memory control circuit is utilized by at least a first circuit of the memory control circuit as part of normal memory controller card operations during the battery health discharge cycle. When the system is not performing a battery health cycle the first circuit receives normal system power. The memory control circuit may be a RAID card. The first circuit may be memory circuitry.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 6, 2012
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, Shane Chiasson
  • Patent number: 8129947
    Abstract: Methods and systems are disclosed for utilizing a memory control circuit for controlling transfer of data to and from a memory system. A memory control circuit with a back up battery and control circuits is provided. Battery health is determined through a discharge cycle of the back up battery. A power supply generated from the back up battery is provided to circuitry of the memory control card during normal operations of the memory control circuit during a non-power loss state. The power supplied from the back up battery during the non-power loss state of the memory control circuit is utilized by at least a first circuit of the memory control circuit as part of normal memory controller card operations during the battery health discharge cycle. When the system is not performing a battery health cycle the first circuit receives normal system power. The memory control circuit may be a RAID card. The first circuit may be memory circuitry.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 6, 2012
    Assignee: Dell Products L.P.
    Inventors: Shane Chiasson, Ligong Wang, John J. Breen
  • Publication number: 20110276810
    Abstract: Desktop power use behavior may be detected while a portable information handling system or any other type of battery powered information handling, system is operating on external power such as an AC adapter. The desktop power use behavior may be detected by monitoring one or more power usage parameters to detect usage characteristics that indicate a battery powered information handling system is being operated in a manner that is similar to operation of a desktop information handling system. Upon detection of desktop behavior, one or more processing devices of the information handling system may respond by taking one or more desktop use response actions.
    Type: Application
    Filed: May 4, 2010
    Publication date: November 10, 2011
    Inventors: Chia-Fa Chang, Hua Chung, Ligong Wang, Yung Fa Chueh
  • Publication number: 20110078470
    Abstract: The number of battery cells connected together in a main battery conductor path of a multiple cell battery system of an information handling system may be varied in real time based on one or more operating conditions (e.g., system load power consumption, battery cell failure, etc.) of the information handling system. Defective battery cells may be bypassed such that the defective battery system may continue to operate and power an information handling system at a lower voltage, e.g., either temporarily, permanently or temporarily until the user procures a suitable replacement battery system. Interconnection of cells of a non-defective multiple cell battery system may also be selectively re-arranged to vary battery system voltage at particular times or during particular information handling system operation modes.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Ligong Wang, Qing Wei Zhu, Qing Shun Yang, Wei Jian Zhu
  • Publication number: 20110072280
    Abstract: Systems and methods that may be implemented for time-based management of storage memory controller (e.g., RAID controller) backup battery life in information handling systems by limiting the backup battery system operation time in order to save energy, reduce the impact of leakage current, and prolong memory controller backup battery shelf life while at the same time meeting requirements of back-up time for storage/server applications. The disclosed systems and methods may be implemented, for example, by providing a battery system controller that implements a pre-set memory controller backup battery operation time, in combination with a hardware-controlled mechanism that extends backup battery system operation time by disabling one or more current leakage paths within the storage memory controller circuitry.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Inventors: Shane Chiasson, Anand Nunna, Clark C. Bruderer, Ligong Wang
  • Patent number: 7880437
    Abstract: A quick conditioning cycle system to avoid performance degradation at the end of calibrating cycle. The quick conditioning cycle system discharges a battery to a level where battery remaining capacity is still high enough to backup memory at a guaranteed period of time. During the quick learning cycle, the battery pack is discharged from a full charge. If measured capacity exceeds a predetermined threshold (Cpc), calibration stops. Otherwise, the quick conditioning cycle system reports a defected battery when measured capacity is less than Cpc and continues discharging to a full conditioning cycle, if desired.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 1, 2011
    Assignee: Dell Products L.P.
    Inventors: Ligong Wang, Bobby Rogers, Marcelo Vinante, Shane Chiasson