Patents by Inventor Chen-Yui Yang

Chen-Yui Yang 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: 7855952
    Abstract: According to one method for identifying and resolving a silent failure in a telecommunications network, performance data associated with data traffic passing through a network element in the telecommunications network is collected. A determination is made whether the performance data has fallen below a threshold to identify the silent failure at the network element. The silent failure fails to trigger an alarm included on the network element. Responsive to determining that the performance data is below the threshold and thereby identifying the silent failure at the network element, troubleshooting rules may be retrieved. The silent failure is resolved based on the performance data and the troubleshooting rules.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: December 21, 2010
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Chen-Yui Yang, Mark Hunt, Michael Lambert, Wen-Jui Li
  • Publication number: 20100265832
    Abstract: A method and an apparatus for detection and prevention of a slow response on a network are disclosed. For example, the method selects a router automatically for testing in response to a ticket indicating a slow response, and performs a diagnostic test on the router, wherein the diagnostic test comprises at least one of: a protocol diagnostic test, a circuit diagnostic test or, a congestion diagnostic test. The method then performs at least one remedial step to address a root cause that is identified by the diagnostic test, wherein the root cause is associated with the slow response.
    Type: Application
    Filed: April 16, 2009
    Publication date: October 21, 2010
    Inventors: PARITOSH BAJPAY, Chee Ching, Scott Corbin, Luis Figueroa, Paul D. Gilbert, Monowar Hossain, Thiru Ilango, David H. Lu, Peter R. Wanda, Chen-Yui Yang
  • Publication number: 20100246436
    Abstract: A process and system for user-controlled configuration of an Internet-protocol (IP) network wherein the user may supply input for generating a network classification profile (NCP), which includes a number of classes of service (COSs) for prioritizing network traffic. Network packets belonging to a COS may be classified according to a packet parameter. The NCP may be used to prioritize packets sent to the network from a network ingress router. A queuing profile for scheduling packets received from the network based on the NCP may also be generated and used by a network egress router. The packet parameter may be based on information in the packet header.
    Type: Application
    Filed: March 26, 2009
    Publication date: September 30, 2010
    Applicant: AT&T Services, Inc.
    Inventors: Chen-Yui Yang, Paritosh Bajpay, David H. Lu, Anand Singh
  • Patent number: 7804781
    Abstract: Methods and apparatus to detect border gateway protocol (BGP) session failures are disclosed. A disclosed example apparatus comprises a database interface to obtain provisioned configuration information for a provider edge (PE) router, a BGP engine to receive one or more BGP messages from a route reflector, the one or more BGP messages representing a list of active routes for the PE router, and a session analyzer to compare the list of active routes with the provisioned configuration information to determine whether a provisioned route is not present in the list of active routes, and to declare a BGP session failure when the provisioned route is not present in the list of active routes.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: September 28, 2010
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhijian Xu, Paritosh Bajpay, Monowar Hossain, Chen-Yui Yang, David H. Lu, Luis Figueroa
  • Publication number: 20100211817
    Abstract: Systems and methods for managing problems that are determined to be chronic problems with network devices or circuits are disclosed. The systems and methods receive data indicating a problem with a network device or circuit and determine based on the data a first action to be performed on the network device or circuit. Upon determining that a recurring problem exists for the network device or circuit, a rule set is used to determine if the data indicates a chronic problem. Upon determining that a chronic problem exists for the network device or circuit, the rule set is used to determine a monitoring period for the network device or circuit. Further, within the monitoring period a performance indicator that indicates that the network equipment or circuit is performing acceptably or unacceptably is used to determine further actions for the network device or circuit.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Inventors: Chen-Yui Yang, Paritosh Bajpay, Monowar Hossain
  • Patent number: 7774237
    Abstract: A method for identifying high-risk orders associated with a customer that includes the steps of: receiving an order that includes a customer number, an order type and a plurality of entries; identifying a customer contract based on the order type and the customer number, the customer contract having a plurality of terms that correspond to the entries; comparing the entries to corresponding terms using rules; and identifying a high-risk order containing at least one error from the comparison. The method can also include assigning a result code or a result text to the order, which corresponds to the errors that are identified, and changing the rule set by adding or removing rules.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: August 10, 2010
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Paritosh Bajpay, Roberta Ann Bienfait, Kathleen M. Clarke, Hossein Eslambolchi, Daqin Liu, Jackson Liu, John McCanuel, Arnel R. Pajarillo, Chen-Yui Yang, Michael Zinnikas, Wan-Ping Chiang
  • Patent number: 7764702
    Abstract: In one embodiment, the present invention is a method and apparatus for customer-controlled routing management. In one embodiment, a system for managing routing in a virtual private network includes a configuration management system for receiving settings from a user of the virtual private network, the settings specifying at least one of: virtual private network topology and routing preferences, and for provisioning the virtual private network in accordance with the user settings and a validation management system for validating the provisioned virtual private network.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: July 27, 2010
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Chen-Yui Yang, Paritosh Bajpay, Anand Singh
  • Publication number: 20100161770
    Abstract: A process and system for user-controlled configuration of an Internet protocol network. The user may supply input for generating a network classification profile, which includes a number of classes of service (COSs) for prioritizing network traffic, including video transmission. A quality of service (QOS) may be measured and compared with a COS for video transmission. Depending on the measured QOS, a network alert may be issued and a priority of packets associated with the COS for video transmission may be increased.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Applicant: AT&T Services, Inc.
    Inventors: Robert J. Ferro, Luis Figueroa, David H. Lu, Chen Yui Yang
  • Publication number: 20100124170
    Abstract: Methods and apparatus to detect border gateway protocol (BGP) session failures are disclosed. A disclosed example apparatus comprises a database interface to obtain provisioned configuration information for a provider edge (PE) router, a BGP engine to receive one or more BGP messages from a route reflector, the one or more BGP messages representing a list of active routes for the PE router, and a session analyzer to compare the list of active routes with the provisioned configuration information to determine whether a provisioned route is not present in the list of active routes, and to declare a BGP session failure when the provisioned route is not present in the list of active routes.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Inventors: Zhijian Xu, Paritosh Bajpay, Monowar Hossain, Chen-Yui Yang, David H. Lu, Luis Figueroa
  • Publication number: 20100124165
    Abstract: According to one method for identifying and resolving a silent failure in a telecommunications network, performance data associated with data traffic passing through a network element in the telecommunications network is collected. A determination is made whether the performance data has fallen below a threshold to identify the silent failure at the network element. The silent failure fails to trigger an alarm included on the network element. Responsive to determining that the performance data is below the threshold and thereby identifying the silent failure at the network element, troubleshooting rules may be retrieved. The silent failure is resolved based on the performance data and the troubleshooting rules.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Inventors: Chen-Yui Yang, Mark Hunt, Michael Lambert, Wen-Jui Li
  • Publication number: 20100111522
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to monitor first and second access devices of a communications network for an alarm where the first and second access devices are connected to each other by a fiber optic cable and where the first and second access devices are capable of transmitting media content to a communications device of a user, identify hierarchical cable relationships associated with the fiber optic cable, monitor network elements of the communications network that are associated with the hierarchical cable relationships for other alarms, and determine a fiber cut of the fiber optic cable based at least in part on the alarm of the monitored first and second access devices and the other alarms of the monitored network elements. Other embodiments are disclosed.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 6, 2010
    Applicant: AT&T Services, INC.
    Inventors: Chen-Yui Yang, Paritosh Bajpay, Mary-Elise Haug
  • Publication number: 20100080115
    Abstract: Example methods and apparatus to monitor border gateway protocol sessions are disclosed. A disclosed example method includes detecting a failure of a first border gateway protocol (BGP) session and initiating a session-down timer in response to detecting the failure. The example method also includes generating a sustained-down alarm when a threshold time value of the session-down timer is exceeded before the first BGP session is re-established.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 1, 2010
    Inventors: Chen-Yui Yang, Paritosh Bajpay, Wen-Jui Li, Peter Wanda, Ken Yeh, Carolyn V. Bekampis
  • Publication number: 20100052924
    Abstract: A method and system of managing network alarms including associating an alarm type with a plurality of network alarms using information associated with the plurality of network alarms, the information comprising a quantity of the plurality of network alarms and a cause of the network alarms; and processing the plurality of network alarms based on the alarm type associated therewith.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 4, 2010
    Applicant: AT&T Intellectual Property,I, LP
    Inventors: Paritosh Bajpay, Monowar Hossain, Wen-Jui Li, Chao-Chun Luo, Chen-Yui Yang, Daniel Zuckerman
  • Publication number: 20100054136
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to receive information from a set top box that is associated with an undesired condition being experienced by a user of the set top box where the information is inputted into the set top box by the user, determine a failure condition associated with the information, perform a first diagnostic process to isolate the failure condition between a network failure and a customer premises equipment (CPE) failure, and transmit correction instructions to the set top box for presentation to the user when the failure condition is isolated to the CPE failure. Other embodiments are disclosed.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Neerav Mehta, Paritosh Bajpay, Monowar Hossain, Chen-Yui Yang, Devendra Chaudhary, Thiru Ilango
  • Publication number: 20100036939
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server comprising a controller to monitor a physical layer, a data link layer and a network layer of an Internet Protocol Television (IPTV) network, obtain a plurality of alarm signals from one or more of the physical layer, the data link layer and the network layer that are associated with an undesired condition of the IPTV network, synthesize the plurality of alarm signals to determine a correlation, obtain topology information associated with network devices in the IPTV network, and isolate the undesired condition to a network component in the IPTV network using the correlation and the topology information. Other embodiments are disclosed.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 11, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: CHEN-YUI YANG, PARITOSH BAJPAY, MARY-ELISE HAUG
  • Publication number: 20100027560
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a system having a controller to monitor in a communication system bandwidth utilization by CPE, detect bandwidth utilization by the CPE that exceeds a bandwidth utilization limit, reconfigure a portion of the communication system to accommodate the increase in bandwidth utilization by the CPE, and generate a mitigation plan directed to a user of the CPE to address the increased bandwidth utilization by the CPE. Other embodiments are disclosed.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Chen-Yui Yang, Mark Hunt, Paritosh Bajpay
  • Publication number: 20100027412
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a set-top box (STB) having a controller to generate a trouble report indicating a malfunction with one or more services, and submitting the trouble report to a mitigation system. The mitigation system can be adapted to detect one or more operational faults in at least one of a Digital Subscriber Line Access Multiplexer (DSLAM), a residential gateway (RG), and the STB, cycle operations of at least one of the DSLAM, the RG, and the STB responsive to detecting an undesirable state of operation of at least one of the DSLAM, the RG, and the STB, and generate a trouble ticket directed to a service agent responsive to detecting that at least one of the DSLAM, the RG and the STB continues to exhibit at least one operational fault. Other embodiments are disclosed.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Chen-Yui Yang, Michele Macauda, Paritosh Bajpay
  • Publication number: 20090319656
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server having a controller to perform a first query of a network device by way of a wired connection with the network device, perform a second query of the network device by way of a wireless connection with the network device, detect an undesired condition associated with at least one of the network device and the wired connection with the network device based at least in part on the first and second queries, and discern between the undesired condition being associated with the network device and being associated with the wired connection based at least in part on the first and second queries. Other embodiments are disclosed.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 24, 2009
    Inventors: Chen-Yui Yang, James Gordon Beattie, Sunil Srinivasmurthy, Chao-Chun Luo, Daniel A. Zuckerman
  • Publication number: 20090182812
    Abstract: In one embodiment, the present invention is a method and apparatus for dynamic scaling data center of processor utilization. In one embodiment, a system for managing a data center includes a control module for gathering data related to at least one server in the data center, the data being gathered from a plurality of sources, and a user interface coupled to the control module for displaying the gathered data to a user in a centralized manner. The control module is further configured to receive a command from the user, the command relating to the operation of the server, and to transmit the command to server.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 16, 2009
    Inventors: Paritosh Bajpay, Stephen Griesmer, Monowar Hossain, Thiru Ilango, Arun Kandappan, Kenneth Oexmann, Venkatesh Patrachari, Steve Van Pelt, Joyce Weekley, Chen-Yui Yang
  • Publication number: 20090175180
    Abstract: A method can be used to address a condition experienced by a customer when using a network. The method can include receiving a first communication from the customer, wherein the first communication is related to the condition of a video content as experienced by the customer, reviewing a log for an alarm, and testing a portion of the network that would process the video content, wherein testing generates a test result. The method can also include correlating the condition to a service parameter, an alarm, a maintenance event, a test result, or any combination thereof. The method can further include sending a second communication to the customer related to the condition. In one embodiment, the method can be fully or partly automated using a system.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 9, 2009
    Applicant: AT&T KNOWLEDGE VENTURES, LP
    Inventors: Chen-Yui Yang, Paritosh Bajpay, Raghvendra Savoor, Monowar Hossain, Vincent C. Tierney, Jr., David H. Lu, Xidong Wu