Dan Cong Nguyen

Address:

3555 W Eureka Dr, Anaheim, CA 92804

Phone:

7146128878

VIN:

WMWMF73537TL87780

Make:

MINI

Model:

COOPER

Year:

2007

US Patent:

6502192, Dec 31, 2002

Filed:

Sep 3, 1998

Appl. No.:

09/146727

Inventors:

Dan Linh Nguyen - Westminster CA

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 1314

US Classification:

713201, 713200, 713202, 380 21

Abstract:

Improved security between a client and a server in a computer network is provided by allowing either endpoint (the client or the server) to initiate request messages. In this way, it is possible to configure the system so that the server always makes the opening move of negotiation, allowing the location of the server to remain hidden until a legal session is established. Dynamic relocation of the server further hides the location of the server from unauthorized users. Additionally, each message may be authenticated individually as it is received, with the endpoint making no response to an unauthentic message, thus preventing attacks on its security. Finally, negotiation of both the encryption method and the key used in the encryption process allows for the rapid reconfiguration of encryption to protect against unauthorized users who may have broken the code.

US Patent:

6931441, Aug 16, 2005

Filed:

Jun 29, 2001

Appl. No.:

09/895560

Inventors:

Thomas Roden - Irvine CA, US
Darrell Shively - El Toro CA, US
Dan Nguyen - Westminster CA, US
Larry Nadeau - Laguna Niguel CA, US
Tina Truong - Foothill Ranch CA, US
David N. Still - Santa Ana CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F015/173

US Classification:

709223, 709238, 370255, 370256, 370230, 713152

Abstract:

A method is disclosed for managing a network having a plurality of network elements, where the network elements are configured to be interconnected to one another. A data structure is maintained that includes information about a link state for each network element in the plurality of network elements. The link state for each network element describes a connection between that network element and at least one other network element designated to be connected to that network element. A management policy is configured for the plurality of network elements by using link state information in the data structure to detect if any of the plurality of network elements are unreachable.

US Patent:

7394244, Jul 1, 2008

Filed:

Oct 22, 2004

Appl. No.:

10/971569

Inventors:

William R. Schley - Rancho Santa Margarita CA, US
Eric B. Chapman - Brea CA, US
Dan Thanh Nguyen - Irvine CA, US
Lawrence P. Flesch - Westminster CA, US
Sandra Lynn Harper - Dana Point CA, US
Curtis Edgar Stevens - Irvine CA, US

Assignee:

Parker-Hannifan Corporation - Cleveland OH

International Classification:

G01B 7/14
G01R 33/069
H01L 43/06

US Classification:

32420724, 3242072

Abstract:

A system and method for measuring the position of at least one field producing element (e. g. , a magnet) without a direct electrical or physical connection between the field producing element and one or more sensors. In one embodiment, the output from an array of sensors (e. g. , Hall Effect sensors) is curve fit using an algorithm having a characteristic bell curve (e. g. , curve fit tracking algorithm, center of gravity algorithm, etc. ) to determine at least one of an absolute or relative position associated with the field producing element and/or a property associated with the field producing element (e. g. , magnetic flux). Another embodiment is directed to detecting errors in one or more of the sensors and excluding the output of the faulty sensors in determining the position associated with the field producing element.

US Patent:

8136418, Mar 20, 2012

Filed:

Aug 3, 2009

Appl. No.:

12/534168

Inventors:

Bruce W. Behar - Pasadena CA, US
James E. Flatt - Portage MI, US
David J. Gurrola - Fillmore CA, US
Dan T. Nguyen - Irvine CA, US

Assignee:

Parker-Hannifin Corporation - Cleveland OH

International Classification:

F16H 3/06
B64C 17/00

US Classification:

74 8923, 244 992

Abstract:

An electromechanical actuating assembly (), operable in a plurality of fault-tolerant modes to accommodate at least the most probable fault situations. In the M1D1-only mode, actuator-moving power is transferred only through the first drivetrain (A) and decoupling power transmitted through the second decoupling train (B) decouples the second drivetrain (B) from the actuator (). In the M2D2-only mode, actuator-moving power is transferred only through the second drivetrain (B) and decoupling power transmitted through the first decoupling train (A) decouples the first drivetrain (A) from the actuator ().

US Patent:

8230750, Jul 31, 2012

Filed:

Feb 26, 2009

Appl. No.:

12/393304

Inventors:

James E. Flatt - Foothill Ranch CA, US
David J. Gurrola - Fillmore CA, US
Bruce W. Behar - Pasadena CA, US
Dan T. Nguyen - Irvine CA, US

Assignee:

Parker-Hannifin Corporation - Cleveland OH

International Classification:

F16H 29/20

US Classification:

74 8938, 74 8939, 74 8928, 74 8929, 244 992

Abstract:

An electromechanical actuating assembly can have a redundant design with a first electric motor providing actuator-moving power via a first drive train and a second electric motor providing actuator-moving power via a second drive train. A first decoupling train can transmit decoupling power to decouple the first drive train from the actuator and a second decoupling train for transmit decoupling power to decouple the second drive train from the actuator. The assembly is operable in a fault-tolerant mode wherein actuator-moving power is transferred only through one drive train and the other drive train is decoupled from the actuator.

US Patent:

8631471, Jan 14, 2014

Filed:

Jun 13, 2011

Appl. No.:

13/159271

Inventors:

Siddhartha Dattagupta - Irvine CA, US
Aaron Hyman Averbuch - Seattle WA, US
Craig A. Hobbs - Seattle WA, US
Dan Nguyen - Huntington Beach CA, US
Eu Chong Son - Aliso Viejo CA, US
Flemming Kraglund - Frederiksberg, DK

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 29/06

US Classification:

726 4, 726 3, 380270, 713151

Abstract:

A host device for a wireless network may be configured to implement at least two virtual access points for connecting client devices to the wireless network. A user virtual access point enables a client device to connect to the wireless network and transmit network traffic to other devices connected to the wireless network. In addition, a setup virtual access point provides an additional access point to connect to the wireless network when network credentials for the user virtual access point, such as a service set identifier (SSID) or a password, are changed by a user. When a client device cannot find the user virtual access point based on a stored SSID or password, the client device may be configured to automatically reconnect to the setup virtual access point to request a new SSID and network credentials for the user virtual access point.

US Patent:

8650311, Feb 11, 2014

Filed:

Apr 21, 2011

Appl. No.:

13/092054

Inventors:

Siddhartha Dattagupta - Irvine CA, US
John Furlan - Belmont CA, US
Mark Carroll - Saratoga CA, US
Chong Liang Li - Irvine CA, US
Insung Kim - Irvine CA, US
Edward James - San Jose CA, US
Matthew Tebbs - Seattle WA, US
Craig Hobbs - Seattle WA, US
Mark Chekhanovskiy - San Jose CA, US
Dan Nguyen - Huntington Beach CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/16

US Classification:

709228, 709220, 709229

Abstract:

A smart network may include a smart network host device as well as one or more client devices configured to connect to the smart network. Each of the client devices may implement one or more services that the client device exposes to other devices connected to the smart network. A client device configured to connect to the smart network may implement one or more modules configured to facilitate connecting to the smart network, registering the client device or services running on the client device with the smart network, diagnosing issues with the client device or the smart network, and upgrading the firmware of the client device. The client device may be configured to perform the various operations with minimal input from an owner of the smart network.

US Patent:

20110226075, Sep 22, 2011

Filed:

Mar 18, 2011

Appl. No.:

13/052013

Inventors:

Dan T. Nguyen - Irvine CA, US
Bruce W. Behar - Pasadena CA, US
Ted A. Mckay - Foothill Ranch CA, US

International Classification:

F16H 25/24
F16H 25/20

US Classification:

74 8938, 74 8939

Abstract:

Vehicles commonly include control-surfaces and other components that are selectively moved during operation among a plurality of positions. Movement of aircraft control-surface components is crucial in flight, and an actuating assembly must consistently and dependably perform during normal operation and be prepared to survive situations outside normal operation and/or to compensate for circumstances causing loss of actuator control. Jam tolerant electromechanically operated actuation systems, of both the rotary and linear types, together with their methods of operation are described herein. Specifically, electrical jam-detection and control systems and associated locking and damping devices can be electrically and mechanically engaged and disengaged, are automatically reversible, and are testable.