Lisa L Nguyen

US Patent:

8165032, Apr 24, 2012

Filed:

Mar 27, 2009

Appl. No.:

12/412786

Inventors:

Mohammad Hanif - Pleasanton CA, US
Lisa Hong Nguyen - San Jose CA, US

Assignee:

Brocade Communications Systems, Inc. - San Jose CA

International Classification:

H04L 12/26

US Classification:

370248, 370242, 370252

Abstract:

Techniques for dynamically establishing and configuring a liveliness detection session for a local repair connection of a connection. In one set of embodiments, a signaling message is received at a node configured to maintain a local repair connection for a connection. A configuration parameter is identified in the signaling message, where the configuration parameter pertains to a liveliness detection mechanism or protocol. A liveliness detection session is then established for the local repair connection based on the configuration parameter.

US Patent:

8521866, Aug 27, 2013

Filed:

Sep 27, 2007

Appl. No.:

11/863214

Inventors:

Malyadri Jaladanki - San Jose CA, US
Annie Dang - Danville CA, US
Yung-Ching Tseng - Sunnyvale CA, US
Albert Fong - San Francisco CA, US
Lisa H. Nguyen - San Jose CA, US

Assignee:

Tellabs San Jose, Inc. - Naperville IL

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

A method for reporting events relating to objects of a network element manageable by a network management device, using a network management protocol, and devices, a network, and computer-readable storage medium storing control logic, that operate in accordance with the method. Events for each object are detected, event information is generated for detected events, generated event information for multiple events is packaged into a trap message for each object type, the trap message is communicated from the network element to the network management device, and the event information from the communicated trap message is unpacked at the network management device. In this manner, network congestion and processor overload at the network management device can be reduced.

US Patent:

20070233887, Oct 4, 2007

Filed:

Jul 17, 2006

Appl. No.:

11/488464

Inventors:

Samer I. Nubani - Santa Clara CA, US
Mahidas Prabhanjan - Sunnyvale CA, US
Lisa H. Nguyen - San Jose CA, US
David Tseng - Fremont CA, US

International Classification:

G06F 15/16

US Classification:

709230

Abstract:

A method or apparatus in an exemplary embodiment supports first and second layer network nodes that may be configured to communicate with each other via a communications path. In embodiments a first network node communicates via a second network node across a layer 2 network to send data. The first network node is typically on a different link layer protocol than the second network node receiving the data. Thus, the first and second layer network nodes, having different link layer protocols, may communicate with each other. Accordingly, through use of embodiments of this invention, Neighbor Discovery (ND) is possible in a network, such as an IPv6 network, that has protocols incompatible with each other.

US Patent:

20090109869, Apr 30, 2009

Filed:

Sep 19, 2007

Appl. No.:

11/858031

Inventors:

Man-Tung T. Hsiao - Cupertino CA, US
Lisa H. Nguyen - San Jose CA, US
Yung-Ching Tseng - Sunnyvale CA, US
Rajiv Goel - Sunnyvale CA, US

International Classification:

H04L 12/28

US Classification:

370254

Abstract:

A device having circuit bundles and a method of configuring the network device to provide resiliency and protection for network circuits. A circuit bundle provides the ability to group multiple circuits of the same type for resiliency/protection. There is an active virtual circuit that is selected based on a user configured priority value defining priority for carrying circuit traffic. When the active virtual circuit fails, alternative virtual circuits are selected to carry the circuit traffic, again based on user configured priority. Virtual circuits included in the circuit bundle can have different destinations, and include at least multipoint virtual circuits.

US Patent:

20130044586, Feb 21, 2013

Filed:

Aug 14, 2012

Appl. No.:

13/585688

Inventors:

Mohammad Hanif - Pleasanton CA, US
Dilip Kumar - Tucson AZ, US
Minjie Dai - San Jose CA, US
Lisa Hong Nguyen - San Jose CA, US
Sundeep Kumar Singh - Bangalore, IN

Assignee:

Brocade Communications Systems, Inc. - San Jose CA

International Classification:

H04L 12/26

US Classification:

370218

Abstract:

Techniques for reducing the latency in performing a failover from a protected connection to its backup connection when a network event is detected affecting the protected connection. In an MPLS network, techniques are provided for failing a protected LSP to a backup LSP in a fast and efficient manner. In one embodiment, the faster failover is facilitated by storing protected LSPs and their backup LSPs information in the data plane, such as locally on a linecard.

US Patent:

20220234034, Jul 28, 2022

Filed:

Jan 25, 2021

Appl. No.:

17/157563

Inventors:

- Beijing, CN
Junjun SHAN - San Jose CA, US
Joshua MILES - San Francisco CA, US
Lisa NGUYEN - Santa Clara CA, US
Louis GUILLEN - San Jose CA, US
Amin SARDAR - Santa Clara CA, US
Hua LIU - Beijing, CN

Assignee:

China Energy Investment Corporation Limited - Beijing
National Institute of Clean-and-Low-Carbon Energy - Beijing

International Classification:

B01J 29/40
C07C 2/66
B01J 37/00
B01J 37/10
C07C 5/42

Abstract:

The present disclosure provides a modified catalyst, and preparation method and a method for producing aromatic hydrocarbons by aromatization of olefins using the modified catalyst. The modified catalyst comprises an acidic molecular sieve and an olefin aromatization active metal component, the total acid amount of the catalyst as measured by NH3-TPD method is not higher than 0.35mmo1/g, and ratio of the strong acid to weak acid is within a range of 0.8-1.2.

US Patent:

20210323895, Oct 21, 2021

Filed:

Apr 13, 2021

Appl. No.:

17/228837

Inventors:

- Beijing, CN
Junjun Shan - San Jose CA, US
Jihong Cheng - Santa Clara CA, US
Anthony Ku - Fremont CA, US
Lisa Nguyen - Santa Clara CA, US

Assignee:

China Energy Investment Corporation Limited - Beijing
National Institute of Clean-and-Low-Carbon Energy - Beijing

International Classification:

C07C 2/76
C07C 5/327
C07C 2/42

Abstract:

A system and a method are provided for producing aromatics. Such a system includes a cracker unit configured to convert a light alkane into an olefin-containing hydrocarbon comprising at least one alkene, and an aromatization unit. The light alkane is selected from the group consisting of methane, ethane, propane, butane, and a combination thereof. The cracker unit is configured to at least partially feed the olefin-containing hydrocarbon into the aromatization unit. Such an olefin-containing hydrocarbon comprises at least 40 wt. % of the at least one alkene. The aromatization unit is used to convert the olefin-containing hydrocarbon therein into a product stream, which includes an aromatic hydrocarbon selected from the group consisting of benzene, toluene, xylenes, and a combination thereof.

US Patent:

20200246783, Aug 6, 2020

Filed:

Jan 16, 2020

Appl. No.:

16/744371

Inventors:

- Beijing, CN
Lisa NGUYEN - Mountain View CA, US
Joshua MILES - Mountain View CA, US
Jihong CHENG - Mountain View CA, US

Assignee:

CHINA ENERGY INVESTMENT CORPORATION LIMITED - Beijing
NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY - Beijing

International Classification:

B01J 27/22
B01J 29/40
B01J 35/00
B01J 35/10
B01J 35/02
C07C 5/09
C07C 11/04

Abstract:

A catalyst that includes heterogeneous metal carbide nanomaterials and a novel preparation method to synthesize the metal carbide nanomaterials under relatively mild conditions to form an encapsulated transition metal and/or transition metal carbide nanoclusters in a support and/or binder. The catalyst may include confined platinum carbide nanoclusters. The preparation may include the treatment of encapsulated platinum nanoclusters with ethane at elevated temperatures. The catalysts may be used for catalytic hydrocarbon conversions, which include but are not limited to, ethane aromatization, and for selective hydrogenation, with negligible green oil production.