Thomas K Chung

US Patent:

6370123, Apr 9, 2002

Filed:

Jan 21, 1998

Appl. No.:

09/010076

Inventors:

Thomas Yat Chung Woo - Red Bank NJ

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

H04L 516

US Classification:

370278, 370236, 370462, 455422, 375220

Abstract:

The present invention is a method and system of half-duplex wireless communication where a premises has a base station that services a defined communication cell. The base station transmits and receives Request to Send and Clear to Send announcements to and from mobile stations to indicate that the base station can send and receive data. A plurality of mobile stations send and receive data after transmitting and receiving Clear to Send and Request to Send announcements to and from the base station based on the respective time period in which the base station has received the Clear to Send and Request to Send announcements from respective mobile stations.

US Patent:

6393296, May 21, 2002

Filed:

Apr 3, 1997

Appl. No.:

08/832086

Inventors:

Krishan Kumar Sabnani - Westfield NJ
Thomas Yat Chung Woo - Red Bank NJ

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

H04Q 720

US Classification:

455466, 455412

Abstract:

A method of accessing a text file comprised of individual messages from a cellular telephone comprises the steps of: accessing the text file; selecting one of the individual messages from the text file; formatting the selected message with a network resident user agent; sending the formatted message to the cellular telephone.

US Patent:

7326929, Feb 5, 2008

Filed:

Feb 6, 2006

Appl. No.:

11/348029

Inventors:

Mau-Song Chou - Rancho Palos Verdes CA, US
Jonathan W. Arenberg - Santa Monica CA, US
Mark A. Menard - Chino Hills CA, US
Thomas T. Chung - Redondo Beach CA, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

G02F 1/01

US Classification:

250330

Abstract:

A technique for providing high-contrast images of defects in semiconductor devices and arrays of such devices, by illuminating each semiconductor device under inspection with broadband infrared radiation, and then forming an image of radiation that is specularly reflected from the semiconductor device. Many semiconductor devices and arrays of such devices have a metal backing layer that specularly reflects the illumination back into an appropriately positioned and aligned camera, selected to be sensitive to infrared wavelengths at which the semiconductor device materials are relatively transparent.

US Patent:

7476606, Jan 13, 2009

Filed:

Mar 28, 2006

Appl. No.:

11/390772

Inventors:

Dean Tran - Westminster CA, US
Alan Hirschberg - Thousand Oak CA, US
Ha K. DeMarco - Redondo Beach CA, US
Luis Rochin - Temecula CA, US
Thomas Chung - Redondo Beach CA, US
Mark Kintis - Manhattan Beach CA, US
Steven J. Mass - La Palma CA, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H01L 21/00
H01L 21/28

US Classification:

438605, 438 25, 438604

Abstract:

Ultra-high speed semiconductors that are usually very thin and therefore very fragile still require connection to a circuit board and a heat transfer pathway. Ultra-high speed circuits and semiconductor devices are provided with a carrier plate formed on the backside of a wafer or substrate by a variety of deposition methods. The carrier plate is a series of metal layers, each being selected to enable the attachment of a relatively thick copper carrier plate to the backside of the substrate or wafer.

US Patent:

7994524, Aug 9, 2011

Filed:

Sep 12, 2007

Appl. No.:

11/900576

Inventors:

David Yaunien Chung - Los Angeles CA, US
Thomas Taoming Chung - Redondo Beach CA, US

International Classification:

H01L 33/48

US Classification:

257 90, 257 88, 257100, 257E33058, 257E2502, 257E25021

Abstract:

A vertical structured Light Emitting Diode (LED) array using wafer level bonding. The process bonds two or more LED arrays vertically to produce light mixing in a small footprint. The vertically bonded LED array contains through substrate vias and a plurality of metal posts coated with solder to form an internal cavity between the LED layers. This LED array structure is intrinsically hermetically sealed.

US Patent:

20070184285, Aug 9, 2007

Filed:

Feb 8, 2006

Appl. No.:

11/349609

Inventors:

Dean Tran - Westminster CA, US
Thomas Chung - Redondo Beach CA, US
Alan Hirschberg - Thousand Oaks CA, US
Luis Rochin - Temecula CA, US
Mark Kintis - Manhattan Beach CA, US

International Classification:

B32B 17/06
B32B 15/00

US Classification:

428432000

Abstract:

Protection against x-ray radiation is provided by a thin layer of a zinc-based alloy. An electronics component housing and lid are made to include a base of a lightweight alloy, a thin coating of the zinc-based alloy and an exterior finish metal layer. The zinc-based alloy provides excellent radiation protection and other advantages, without a significant weight penalty.

US Patent:

6198941, Mar 6, 2001

Filed:

Aug 7, 1998

Appl. No.:

9/130979

Inventors:

Alfred Vaino Aho - Chatham NJ
Richard Dennis Gitlin - Little Silver NJ
Ramachandran Ramjee - Matawan NJ
Thomas Yat Chung Woo - Red Bank NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04B 138

US Classification:

455552

Abstract:

A method of effectuating a change in the operation of a portable communication device such as a laptop or palmtop computer, a personal digital assistant (PDA), or a cellular telephone. The device can communicate with a remote host or server using one of two or more different communication arrangements. Various signals indicative of the environment in which the device is operating are monitored, to anticipate or predict a change or transition from one communication arrangement to the other. If the change is determined to be both imminent and significant, the operation change is effected substantially simultaneously, by changing parameters in the transport and/or application protocol layer in the device.

US Patent:

59701226, Oct 19, 1999

Filed:

Jul 24, 1996

Appl. No.:

8/686080

Inventors:

Thomas F. LaPorta - Thornwood NY
Krishan Kumar Sabnani - Westfield NJ
Thomas Yat Chung Woo - Red Bank NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04M 164
H04M 160
H04M 342
H04Q 700

US Classification:

379 671

Abstract:

A two-way wireless messaging system includes a messaging network having at least one user agent corresponding to a subscriber of a two-way wireless messaging service. The subscriber receives messages from the messaging network along a first communication channel. The user agent includes a plurality of messages stored therein wherein a predetermined message is stored in the user agent and forwarded to a desired destination in response to an originating message code that is received from a two-way messaging device of the subscriber along a second communication return channel. The originating message code can be expanded by the user agent. The messages stored by the user agent can be modified so that different messages can be forwarded to the predetermined destination. The user agent also maintains location information of the two-way messaging device of the subscriber.