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Feng, TX

Daw Feng, Austin, TX US

Patent application numberDescriptionPublished
20090019514METHOD AND SYSTEM FOR ENFORCING PASSWORD POLICY IN A DISTRIBUTED DIRECTORY - The invention describes techniques for enforcing password policy within a distributed directory environment that includes one or more distributed directory servers and a proxy server that acts as an intermediate agent between a client and the distributed directory environment. In one aspect, the proxy server is enhanced to support the passing (from the backend server to the client) of password policy controls. In particular, controls returned from a backend server are parsed and cached (for re-use) for the life of a given client connection. According to another aspect, the proxy server ensures that all compare operations for a single user's password are directed to the same backend server in the distributed directory environment. This insures that a user's most current password is used, and that failed operation counts, resets and operational attributes are up-to-date. According to still another aspect, the proxy server enforces password policy on bind plug-ins and, in particular, through a pair of pre-bind and post-bind extended operations. In particular, pre-bind processing includes checking if an account is locked. Post-bind processing includes checking for expired passwords, grace logins and updating failed/successful bind counters.01-15-2009
20090019533METHOD AND SYSTEM FOR ENFORCING PASSWORD POLICY FOR AN EXTERNAL BIND OPERATION IN A DISTRIBUTED DIRECTORY - The invention describes techniques for enforcing password policy within a distributed directory environment that includes one or more distributed directory servers and a proxy server that acts as an intermediate agent between a client and the distributed directory environment. In one aspect, the proxy server is enhanced to support the passing (from the backend server to the client) of password policy controls. In particular, controls returned from a backend server are parsed and cached (for re-use) for the life of a given client connection. According to another aspect, the proxy server ensures that all compare operations for a single user's password are directed to the same backend server in the distributed directory environment. This insures that a user's most current password is used, and that failed operation counts, resets and operational attributes are up-to-date. According to still another aspect, the proxy server enforces password policy on bind plug-ins and, in particular, through a pair of pre-bind and post-bind extended operations. In particular, pre-bind processing includes checking if an account is locked. Post-bind processing includes checking for expired passwords, grace logins and updating failed/successful bind counters.01-15-2009
20090178105REDUCING OVERHEAD ASSOCIATED WITH DISTRIBUTED PASSWORD POLICY ENFORCEMENT OPERATIONS - A computer implemented method, data processing system, and computer program product for reducing the overhead associated with distributed password policy enforcement operations using a proxy server. when a proxy server provides a request from a client to a backend directory server, the proxy server determines whether a password policy check is required to be performed at the backend directory server. If a password policy check is not required to be performed at the backend directory server, the proxy server sends the client request together with a skip password policy control to the backend directory server. This skip password policy control informs the backend directory server to skip the password policy check on the client request.07-09-2009
20090178106PASSWORD POLICY ENFORCEMENT IN A DISTRIBUTED DIRECTORY WHEN POLICY INFORMATION IS DISTRIBUTED - A computer implemented method, data processing system, and computer program product for password policy enforcement in a distributed directory when policy information is distributed. When a proxy server is providing a request from a client to a backend directory server, the proxy server performs a series of LDAP operations on a targeted set of backend directory servers to collect password policy information applicable to a target user. The password policy information applicable to the target user is partitioned and distributed across the plurality of backend directory servers. When the password policy information for the target user has been collected, the proxy server evaluates the collected password policy information to determine an effective password policy for the target user. The proxy server then sends the request and subsequent requests with the effective password policy to a backend directory server.07-09-2009
20100070545LIGHTWEIGHT DIRECTORY ACCESS PROTOCOL (LDAP) ADMINISTRATOR TASK NOTIFICATION CONTROL - The illustrative embodiments provide for automatically and proactively retrieving administrative maintenance tasks or potential issues from a set of directory servers without direct intervention from an administrator. Responsive to an operation request being sent from a requesting application to the set of directory servers and an administrative maintenance control mechanism being active, an administrative maintenance control is automatically sent to the set of directory servers. Responsive to receiving the response to the administrative maintenance control, an end user application within the data processing system is notified that the at least one of the administrative maintenance tasks or the potential issues have been received.03-18-2010
20100274769MANAGING DELETED DIRECTORY ENTRIES - A method, system, and computer usable program product for managing deleted directory entries are provided in the illustrative embodiments. An instruction to delete the entry is received. A second entry that includes a reference to the entry is identified. A third entry including information to be preserved from the entry is added in a deleted entries subtree. The third entry is modified to include the reference information from the second entry. The third entry is saved such that during a restore of the entry the third entry provides the information to restore the entry and the reference to the entry. The third entry may include a set of attributes that store an identifier of the second entry. The entry is restored from the third entry and made available in the directory. A reference is recreated in the second entry to the restored entry forming a restored second entry.10-28-2010
20100275059PRESERVING REFERENCES TO DELETED DIRECTORY ENTRIES - A method, system, and computer usable program product for preserving references to deleted directory entries are provided in the illustrative embodiments. An instruction to delete an entry is received. A second entry referencing the entry is identified. The second entry is marked as a ghost reference to the entry. The entry is converted to a deleted entry. A ghost attribute with a value of “false” may be added to the entry. A ghost attribute or tag with a value of “false” may be added to the second entry. The ghost tag may correspond to an attribute of the second entry that references the entry. An entry may be deleted by setting a value of a ghost attribute in the entry to true. The second entry may be marked as the ghost reference by setting a value of a ghost attribute or a ghost tag in the second entry to true.10-28-2010

Fangfang Feng, Missouri City, TX US

Patent application numberDescriptionPublished
20110067495MICROMACHINED ACCELEROMETER WITH MONOLITHIC ELECTRODES AND METHOD OF MAKING THE SAME - A capacitive accelerometer having one or more micromachined acceleration sensor assembly is disclosed. The acceleration sensor assembly comprises a spring-mass-support structure, a top cap and a bottom cap. The proof mass plate of the spring-mass-support structure has cutout spaces and is supported by a pair of branched torsional beams which are substantially located in the cutout spaces. The torsional axis of the proof mass plate is offset from the mass center in direction perpendicular to the proof mass plate. The acceleration sensor assembly further comprises multiple coplanar electrodes for differential capacitive sensing and electrostatic forcing. The capacitive accelerometer according to the present invention may comprise one, two or six micromachined acceleration sensor assemblies with electronic signal detection, conditioning and control circuits in different configurations and applications to detect and measure linear and angular accelerations. Methods to fabricate the micromachined acceleration sensor assembly are disclosed.03-24-2011

Guo H. Feng, Austin, TX US

Patent application numberDescriptionPublished
20090222647Method and Apparatus for Reducing Test Case Generation Time in Processor Testing - A method, apparatus and computer program product are provided for use in a system that includes one or more processors, and multiple threads that are respectively associated with the one or more processors. One embodiment of the invention is directed to a method that includes the steps of generating one or more test cases, wherein each test case comprises a specified set of instructions in a specified order, and defining a plurality of thread hardware allocations, each corresponding to a different one of the threads. The thread hardware allocation corresponding to a given thread comprises a set of processor hardware resources that are allocated to the given thread for use in executing test cases. The method further includes executing a particular one of the test cases on a first thread hardware allocation, in order to provide a first set of test data, and thereafter executing the particular test case using a second thread hardware allocation, in order to provide a second set of test data.09-03-2009

Hongjun Feng, Austin, TX US

Patent application numberDescriptionPublished
20100277257ACOUSTIC RESONATOR PERFORMANCE ENHANCEMENT USING SELECTIVE METAL ETCH - An acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, and a second electrode. The substrate has a first surface and the first electrode is adjacent the first surface of the substrate. The layer of piezoelectric material is adjacent the first electrode. The second electrode is adjacent the layer of piezoelectric material, and the second electrode lies in a first plane and has an edge. The layer of piezoelectric material has a recessed feature adjacent the edge of the second electrode.11-04-2010

Jian Q. Feng, Dallas, TX US

Patent application numberDescriptionPublished
20100221707DIAGNOSTIC METHODS FOR DETECTING CONGENITAL BONE DEFECTS - The present disclosure is directed to compositions and methods for screening for patients at risk for autosomal recessive hypophosphatemic rickets. More particularly, diagnostic reagents and procedures are provided for analyzing samples to detect defective DMP1 expression.09-02-2010

Qin Feng, Houston, TX US

Patent application numberDescriptionPublished
20090269751DOT1 HISTONE METHYLTRANSFERASES AS A TARGET FOR IDENTIFYING THERAPEUTIC AGENTS FOR LEUKEMIA - The present invention provides polypeptides with histone H3 lysine 79 methyltransferase activity as well as nucleic acids encoding the same. Also provided are methods of using the polypeptides and nucleic acids of the invention in screening assays to identify compounds of interest. Further provided are diagnostic methods for leukemia and prognostic methods to predict the course of the disease in a subject.10-29-2009
20100151453DOT1 HISTONE METHYLTRANSFERASES AS A TARGET FOR IDENTIFYING THERAPEUTIC AGENTS FOR LEUKEMIA - The present invention provides polypeptides with histone H3 lysine 79 methyltransferase activity as well as nucleic acids encoding the same. Also provided are methods of using the polypeptides and nucleic acids of the invention in screening assays to identify compounds of interest. Further provided are diagnostic methods for leukemia and prognostic methods to predict the course of the disease in a subject.06-17-2010

Patent applications by Qin Feng, Houston, TX US

Sheng Feng, Houston, TX US

Patent application numberDescriptionPublished
20090295392Resistivity Imager in Non-Conductive Mud for LWD and Wireline Applications - An apparatus, method and computer-readable medium for imaging an earth formation. A downhole assembly having a resistivity sensor is conveyed in a borehole penetrating the earth formation. The resistivity sensor includes a plurality of antenna coils arranged along a radial line that is substantially perpendicular to a longitudinal axis of the downhole assembly and configured to obtain measurements of a resistivity property of the earth formation. A processor images the earth formation using the obtained measurements.12-03-2009

Xiao Feng, The Woodlands, TX US

Xiaobing Feng, Houston, TX US

Patent application numberDescriptionPublished
20090012338Process for Aromatic Alkylation - This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.01-08-2009

Patent applications by Xiaobing Feng, Houston, TX US

Xiushan Feng, Austin, TX US

Patent application numberDescriptionPublished
20090307643VECTOR SEQUENCE SIMPLIFICATION FOR CIRCUIT VERIFICATION - One set of illegal vector sequences is manually generated for a circuit design and a symbolic simulator is used to automatically generate another set of illegal vector sequences for the circuit design. For verification purposes, the relationship between the manually generated set and the automatically generated set is determined. Prior to determining this relationship, one or both of the sets are simplified. One simplification technique includes replacing pairs of illegal vector sequences that are the same except at one bit position with a more general illegal vector sequence representative of both illegal vector sequences of the pair. Another simplification technique includes sorting the illegal vector sequences in a list having a sort order from most general to most specific and then identifying illegal vector sequences that are redundant in view of one or more other illegal vector sequences prior in the sort order based on a binary decision diagram (BDD)-based analysis that sequences through the sorted list in its sort order.12-10-2009

Xueqing Feng, Austin, TX US

Patent application numberDescriptionPublished
20100026123PERMANENT-MAGNET (PM) ROTORS AND SYSTEMS - Permanent-magnet (PM) rotors, rotor components, and machines using PM rotors.02-04-2010
20100052455Permanent-Magnet (PM) Rotors and Systems - Permanent-magnet (PM) rotors, rotor components, and machines using PM rotors, where the PM rotors have internally coupled PM bulks and/or are configured to have a non-uniform air gap between the rotor and a stator.03-04-2010
20100133941Permanent-Magnet (PM) Rotors and Systems - Line-start permanent-magnet (LSPM) rotors, rotor components, and machines using LSPM rotors, where the PM rotors have PM bulks in W-like shapes, vent openings between PM bulks, and/or air gaps at ends of PM bulks in the W-like shapes.06-03-2010

Yi Joanna Feng, Plano, TX US

Patent application numberDescriptionPublished
20090307235DATA COPY SYSTEM AND METHOD FOR MULTI-PLATFORM DISASTER RECOVERY - Method and apparatus for providing disaster recovery with respect to a production mainframe having an operating system encoded in Extended Binary Coded Decimal Instruction Code (EBCDIC). The method includes copying said operating system from a direct access storage device (DASD) of said production mainframe to a file, compressing said file, transferring said file to a remote computer by binary File Transfer Protocol, and storing said file proximate said remote computer.12-10-2009

Yunfei Feng, Austin, TX US

Patent application numberDescriptionPublished
20090085549BANDGAP REFERENCE CIRCUIT WITH REDUCED POWER CONSUMPTION - A bandgap voltage reference circuit and methods for generating a bandgap reference voltage are disclosed. An operational amplifier receives first and second input voltages from a first and second current path, respectively. A buffer stage is coupled to an output of the operational amplifier and generates third and fourth voltages on the first and second path. A temperature dependent current is generated using the third and fourth voltages in combination with a first diode, second diode and a resistor. A third current path mirrors the temperature dependent current and a temperature independent voltage is generated for the bandgap reference voltage in the third current path using the temperature dependent current in combination with a second resistor and related diode.04-02-2009