HIEP NGUYEN, PHARMD
Pharmacy at Hellyer Ave, San Jose, CA

7778158, Aug 17, 2010

Aug 31, 2004

10/930154

Stephen R. Vogel - Medford NJ, US
James B. Armstrong - Princeton NJ, US
Hiep T. Nguyen - San Jose CA, US

Cox Communications, Inc. - Atlanta GA

G01R 31/08, G06F 11/00, G08C 15/00, H04J 1/16, H04J 3/14, H04L 1/00, H04L 12/26

370217, 370244

Apparatus and method providing improved fault tolerance through redundancy of hardware and software suitable for use in a head-end of an interactive information distribution system. Communications between each of a head-end controllers and each of the server modules are coincidentally sent along at least two signal paths to provide to additional fault tolerance in the event one of the signal paths becomes inoperable. In one embodiment, a video switch comprises a plurality of I/O ports coupled between a plurality of server modules and a plurality of subscriber equipment for transferring video information between the server and the subscriber equipment. A primary and secondary switch controller are each coupled to the head-end controllers and the plurality of I/O ports. The primary switch controller is used for routing data packets containing said video information between the plurality of I/O ports. The secondary switch controller monitors status of the primary switch controller and I/O ports, and initiates a switchover event in an instance where the primary switch controller exhibits a failure.

2008007, Mar 20, 2008

Nov 26, 2007

11/945072

Jules Gauthier - Laval, CA
Dany Berube - San Jose CA, US
Hiep Nguyen - San Jose CA, US

A61B 18/18

606033000

A flexible microwave antenna assembly for a surgical ablation instrument capable of conforming to a tissue surface for ablation thereof. The ablation instrument includes a transmission line having a proximal portion suitable for connection to an electromagnetic energy source. The antenna assembly includes a flexible antenna coupled to the transmission line for radially generating an electric field sufficiently strong to cause tissue ablation. A flexible shield device is coupled to the antenna to substantially shield a surrounding area of the antenna from the electric field radially generated therefrom while permitting a majority of the field to be directed generally in a predetermined direction. A flexible insulator is disposed between the shield device and the antenna which defines a window portion enabling the transmission of the directed electric field in the predetermined direction. The antenna, the shield device and the insulator are formed for selective manipulative bending thereof, as a unit, to one of a plurality of contact positions to generally conform the window portion to the biological tissue surface to be ablated.

7487531, Feb 3, 2009

Mar 31, 2000

09/540178

Stephen R. Vogel - Medford NJ, US
James B. Armstrong - Princeton NJ, US
Hiep T. Nguyen - San Jose CA, US

Sedna Patent Services, LLC - Philadephia PA

H04N 7/173

725 93, 725 94, 709239

Apparatus and method providing improved fault tolerance through redundancy of hardware and software suitable for use in a head-end of an interactive information distribution system. Communications between each of a head-end controllers and each of the server modules are coincidentally sent along at least two signal paths to provide to additional fault tolerance in the event one of the signal paths becomes inoperable. In one embodiment, a video switch comprises a plurality of I/O ports coupled between a plurality of server modules and a plurality of subscriber equipment for transferring video information between the server and the subscriber equipment. A primary and secondary switch controller are each coupled to the head-end controllers and the plurality of I/O ports. The primary switch controller is used for routing data packets containing said video information between the plurality of I/O ports. The secondary switch controller monitors status of the primary switch controller and I/O ports, and initiates a switchover event in an instance where the primary switch controller exhibits a failure.