Patents by Inventor Zhengwei Liu

Zhengwei Liu 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: 20150118105
    Abstract: Pitting corrosion of stainless steel occurs in solutions of organic acid, such as tartaric acid, in an electrolyte solution with methanol. However, methanolic solutions containing at least one organic halide and at least one organic hydroxyacid and some water provide reduced pitting corrosion of stainless steel. The organic hydroxyacid may be a hydroxy acid containing 2 to 10 carbon atoms with at least one hydroxyl group and at least one carboxylic acid group, in a non-limiting example, glycolic acid. The pH of the methanolic solution may range from about 3.5 to about 8.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 30, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Zhengwei Liu, Sunder Ramachandran, Vaithilingam Panchalingam, Timothy Z. Garza, Paul Robert Stead, Stuart Edward Cook, Gordon T. Rivers, Vu Thieu, Heather Mceachern
  • Patent number: 8995291
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In a first configuration, the apparatus maintains a first set of tracking loops associated with unicast signals and a second set of tracking loops associated with multicast/broadcast signals. In addition, the apparatus decoding at least one of a received unicast signal based on the first set of tracking loops or a received multicast/broadcast signal based on the second set of tracking loops. In a second configuration, the apparatus maintains a TTL and a FTL associated with unicast signals based only on received unicast signals. In addition, the apparatus receives a multicast/broadcast signal and decodes the received multicast/broadcast signal based on the TTL and the FTL maintained based only on the received unicast signals.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 31, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Gordon Kent Walker, Jun Wang, Zhengwei Liu
  • Publication number: 20150067135
    Abstract: A member-oriented hybrid cloud operating system architecture and a communication method thereof are provided. A hybrid architecture is established based on layer, object and message models, and a member-oriented idea is applied to manage constituent members and a processing environment thereof. On this basis, high-efficient routing, read-write separation and load balancing are performed on a member processing cluster, satisfying the requirements of being open and compatible, loosely coupled and extensible of a cloud operating system, and solving the self-management problem, the horizontal scaling problem of members and the high-availability problem of stateful members of the existing cloud operating system.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventors: Endong WANG, Dong ZHANG, Zhengwei LIU, Kaiyuan QI, Junpeng LIU, Feng GUO, Chenping LIU, Fei GAO, Bo ZHU
  • Patent number: 8889997
    Abstract: A method of manufacturing an electrical conductor includes providing a substrate layer, depositing a graphene layer on the substrate layer and selectively depositing boundary cappings on defects of the graphene layer to inhibit corrosion of the substrate layer at the defects. Optionally, the boundary cappings may include nano-sized crystals deposited only at the defects. The selectively depositing may include electrodepositing boundary cappings on exposed portions of the substrate layer at the defects. The selectively depositing may include reacting boundary capping material with exposed portions of the substrate layer at the defects to deposit the boundary cappings only at the defects.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: November 18, 2014
    Assignee: Tyco Electronics Corporation
    Inventors: Zhengwei Liu, Min Zheng, Rod Martens
  • Patent number: 8867437
    Abstract: Certain aspects of the present disclosure relate to a technique for implementing a cell site modem application message interface (CSM API) for a cell site of Long Term Evolution (LTE) wireless system.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Zhengwei Liu, Xiaoxia Zhang, Christian O. Thelen, Magnus D. Kretz
  • Publication number: 20140241149
    Abstract: An apparatus operable in a communication system is described. The apparatus includes means for sending a connection reconfiguration message using a first configuration. The apparatus also includes means for receiving an acknowledgement message using the first configuration. The apparatus also includes means for applying a second configuration as indicated in the acknowledgement message. The apparatus also includes means for sending a connection reconfiguration complete message uplink grant in a common search space. The apparatus also includes means for receiving a connection reconfiguration complete message using the second configuration.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Zhengwei Liu, Xiaoxia Zhang, Magnus D. Kretz, Wanshi Chen
  • Patent number: 8768263
    Abstract: In an aspect, a method assists with blind decoding of uplink control signals on a Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH). The method assists in determining the uplink control path in the event a user equipment (UE) misses an uplink grant and blind decoding occurs. It is determined whether an uplink acknowledgement, rank indicator, and/or channel quality indicator are found on a PUSCH. If not, it is determined whether a scheduling request is expected and whether special handling for the scheduling request is indicated. Depending on those determinations, and whether any decoding attempts for uplink signals are successful, either the PUSCH or PUCCH is selected as the uplink control path.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 1, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Durga Prasad Malladi, Zhifei Fan, Hao Xu, Christian Oliver Thelen, Zhengwei Liu
  • Patent number: 8724537
    Abstract: Methods and apparatuses are provided that include enhancing decoding of multicast broadcast control communications, which can be of a relatively large size. A configuration message related to a broadcast channel structure can be received in multiple instances and/or segmented data units. A receiver can combine multiple instances and/or accumulate segmented data units to obtain and/or decode a control channel over which the configuration message is communicated. Communicating segmented data units of the configuration message can allow a broadcast station to utilize a lower data rate, more reliable modulation and coding scheme to encode the configuration message.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: May 13, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivasan Balasubramanian, Thomas Klingenbrunn, Zhengwei Liu, Jack S. Shauh, Jun Wang, Xiaoxia Zhang, Kuo-Chun Lee
  • Publication number: 20130292161
    Abstract: A method of manufacturing an electrical conductor includes providing a substrate layer, depositing a graphene layer on the substrate layer and selectively depositing boundary cappings on defects of the graphene layer to inhibit corrosion of the substrate layer at the defects. Optionally, the boundary cappings may include nano-sized crystals deposited only at the defects. The selectively depositing may include electrodepositing boundary cappings on exposed portions of the substrate layer at the defects. The selectively depositing may include reacting boundary capping material with exposed portions of the substrate layer at the defects to deposit the boundary cappings only at the defects.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Applicant: Tyco Electronics Corporation
    Inventors: Zhengwei Liu, Min Zheng, Rod Martens
  • Publication number: 20130272185
    Abstract: Methods and apparatuses are provided that include enhancing decoding of multicast broadcast control communications, which can be of a relatively large size. A configuration message related to a broadcast channel structure can be received in multiple instances and/or segmented data units. A receiver can combine multiple instances and/or accumulate segmented data units to obtain and/or decode a control channel over which the configuration message is communicated. Communicating segmented data units of the configuration message can allow a broadcast station to utilize a lower data rate, more reliable modulation and coding scheme to encode the configuration message.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Srinivasan BALASUBRAMANIAN, Thomas KLINGENBRUNN, Zhengwei LIU, Jack S. SHAUH, Jun WANG, Xiaoxia ZHANG, Kuo-Chun LEE
  • Publication number: 20130206461
    Abstract: A method of manufacturing an electrical conductor includes providing a substrate layer, depositing a surface layer on the substrate layer that has pores at least partially exposing the substrate layer, and forming graphene deposits in the pores. Optionally, the graphene deposits may be formed only in the pores. The graphene deposits may be formed along the exposed portions of the substrate layer. The graphene layers may be selectively deposited or may be deposited to cover an entire layer. Optionally, the forming of the graphene deposits may include processing the electrical conductor using a chemical vapor deposition process using an organic compound precursor and heat of sufficient temperature to facilitate graphene growth on the metal compound comprising the substrate layer.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 15, 2013
    Applicant: TYCO ELECTRONICS CORPORATION
    Inventors: Mary Elizabeth Sullivan Malervy, Robert Daniel Hilty, Rodney I. Martens, Min Zheng, Jessica Henderson Brown Hemond, Zhengwei Liu
  • Patent number: 8473799
    Abstract: Certain aspects of the present disclosure propose techniques for avoiding a disruption in synchronous hybrid automatic repeat request operation at system time rollover. The techniques define the behavior of a system before and after the system frame number (SFN) rollover point to ensure a known relationship between a hybrid automatic repeat request (HARQ) process identification number and system time.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: June 25, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Zhengwei Liu, Hao Xu, Arnaud Meylan
  • Publication number: 20130126212
    Abstract: A conductive member includes a metal substrate and a carbon-based substrate (CBS) network applied to the metal substrate. The CBS network includes a framework of fibers and particulates embedded in the framework that provide cathodic protection for the metal substrate. The particulates may penetrate entirely through the framework. The particulates may be iron particulates. The particulates may be metal particulates having a higher corrosion potential than the metal substrate. The CBS network may be a yarn, a sheet, or a tape. The CBS network with the particulates may be applied by coating or plating the metal substrate with the CBS network.
    Type: Application
    Filed: July 23, 2012
    Publication date: May 23, 2013
    Applicant: Tyco Electronica Corporation
    Inventors: Rodney Ivan Martens, Andrew Nicholas Loyd, Jessica Henderson Brown Hemond, Zhengwei Liu
  • Publication number: 20130128768
    Abstract: Methods and apparatuses are provided that include enhancing decoding of multicast broadcast control communications, which can be of a relatively large size. A configuration message related to a broadcast channel structure can be received in multiple instances and/or segmented data units. A receiver can combine multiple instances and/or accumulate segmented data units to obtain and/or decode a control channel over which the configuration message is communicated. Communicating segmented data units of the configuration message can allow a broadcast station to utilize a lower data rate, more reliable modulation and coding scheme to encode the configuration message.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Srinivasan Balasubramanian, Thomas Klingenbrunn, Zhengwei Liu, Jack S. Shauh, Jun Wang, Xiaoxia Zhang, Kuo-Chun Lee
  • Publication number: 20130114492
    Abstract: Methods and apparatuses are provided that include decoding multicast broadcast communications where scheduling information related to a multicast channel is not properly received over a control channel. Media access control (MAC) packets can be decoded to determine whether a MAC subheader indicates the packet relates to a logical channel by indicating an associated channel identifier. Where the channel identifier of the MAC packet matches that of a requested logical channel, data in the MAC packet can be provided to a communications layer. Subsequent packets can be processed and provided to the communications layer until a different channel identifier is encountered.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 9, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Zhengwei Liu, Arnaud Meylan, Jun Wang, Xiaoxia Zhang, Kuo-Chun Lee
  • Publication number: 20130039292
    Abstract: A method for mitigation of lost resource allocation synchronization between a user equipment (UE) and an evolved Node B (eNodeB) during a Hybrid Automatic Repeat Request (HARQ) transmission and/or retransmission process is described. The method includes determining whether resource allocation is out of synchronization between a user equipment (UE) and an evolved Node B (eNodeB) during a hybrid automatic repeat request (HARQ) transmission and/or retransmission process. The method further includes mitigating a loss of resource allocation synchronization between the UE and the eNodeB during the HARQ transmission and/or retransmission process.
    Type: Application
    Filed: July 12, 2012
    Publication date: February 14, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Zhengwei LIU, Magnus D. Kretz, Wanshi Chen, Xiaoxia Zhang, Hao Xu
  • Publication number: 20130023166
    Abstract: A method for silver plating an electrical contact is provided. The method includes cleaning an electrical contact by removing oil or other contaminants and exposing the electrical contact to at least one of an acid or base. The method also includes preparing a silver plating bath including a silver compound, a transition metal compound, and a supporting salt, wherein the transition metal is at least one of nickel or cobalt. The method further includes silver plating the electrical contact in the silver plating bath.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 24, 2013
    Applicant: TYCO ELECTRONICS CORPORATION
    Inventors: ZHENGWEI LIU, ROBERT DANIEL HILTY
  • Publication number: 20120314591
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In a first configuration, the apparatus maintains a first set of tracking loops associated with unicast signals and a second set of tracking loops associated with multicast/broadcast signals. In addition, the apparatus decoding at least one of a received unicast signal based on the first set of tracking loops or a received multicast/broadcast signal based on the second set of tracking loops. In a second configuration, the apparatus maintains a TTL and a FTL associated with unicast signals based only on received unicast signals. In addition, the apparatus receives a multicast/broadcast signal and decodes the received multicast/broadcast signal based on the TTL and the FTL maintained based only on the received unicast signals.
    Type: Application
    Filed: September 21, 2011
    Publication date: December 13, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: XIAOXIA ZHANG, Gordon Kent Walker, Jun Wang, Zhengwei Liu
  • Publication number: 20120275399
    Abstract: Techniques are provided for synchronized radio link control (RLC) and/or media access control (MAC). For example, there is provided a method that involves generating an RLC protocol data unit (PDU) according to a segmentation protocol for maximizing RLC PDU size while allowing the RLC PDU to fit into a defined MAC transport block, the RLC PDU comprising at least one RLC service data unit (SDU) or RLC SDU segment. The method may involve determining a PDU data size for each given RLC SDU. The method may further involve (a) attaching a given RLC SDU to the RLC PDU and (b) delivering the RLC PDU to a lower layer, in response to a SDU data size for the given RLC SDU exceeding a defined size limit.
    Type: Application
    Filed: April 25, 2012
    Publication date: November 1, 2012
    Applicant: QUALCOMM INCORPORATED
    Inventors: Zhengwei Liu, Arnaud Meylan, Xiaoxia Zhang, Kuo-Chun Lee
  • Publication number: 20120236776
    Abstract: Transfer of Multimedia Broadcast/Multicast Services (MBMS) over a Single Frequency Network (MBSFN) service and idle mode unicast service for a mobile entity from a source base station to a target base station may be managed by a base station or mobile entity of a cellular wireless communications system (WCS). Operations related to the transfer may include obtaining an MBMS status of the mobile entity, and/or obtaining MBMS support information for the base station. A network entity may facilitate MBMS discovery by a mobile entity, by transmitting a data element to the mobile entity including service identifiers mapped to corresponding cell identifiers to indicate respective MBMS services to be broadcast in an WCS area on adjacent cells identified by respective ones of the cell identifiers. The MBMS services may be broadcast within the WCS area using the adjacent cells previously indicated in the data element.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 20, 2012
    Applicant: QUALCOMM INCORPORATED
    Inventors: Xiaoxia Zhang, Jun Wang, Zhengwei Liu, Andrea Garavaglia, Kuo-Chun Lee, George Cherian