Reginald Living Jue, 712552 Via Sanchez, Palos Verdes Estates, CA 90274

6603349, Aug 5, 2003

Jul 20, 2001

09/910162

Dominic P. Carrozza - Redondo Beach CA
David A. Wright - Hermosa Beach CA
Reginald Jue - Manhattan Beach CA

TRW Inc. - Redondo Beach CA

H03D 300

329304, 375340, 375327

The present invention is a demodulator and a method of demodulating burst communications. A demodulator ( ) includes a phase angle source ( ), coupled to a current received burst communication, which provides a phase angle of the current received burst communication; a comparator ( ), coupled to the phase angle source and a source of an estimated phase angle, which provides an output signal representing an angular difference between a phase of the current received burst communication and the estimated phase angle; and a phase lock loop ( ), coupled to the output signal, which provides the estimated phase angle. The phase lock loop includes a Doppler accumulator ( ) which provides a Doppler output which provides compensation in the estimated phase angle for the Doppler effect produced by relative motion between the demodulator and a source of the burst communications.

6628922, Sep 30, 2003

Mar 21, 2000

09/532184

Harvey L. Berger - Redondo Beach CA, 90278
Dennis A. Nivens - Hermosa Beach CA, 90254
Reginald Jue - Manhattan Beach CA, 90266

H04B 7185

455 131, 455428

A communications system includes two satellites located at the same node along the geostationary arc each capable of receiving RF signals through an uplink channel and transmitting RF signals through a downlink channel distinct from the uplink channels. At least two user terminals are in the system, with each user terminal able to transmit RF signals to only one of the satellites, but at least one of the user terminals is able to receive RF signals from both of the satellites.

6636734, Oct 21, 2003

May 17, 2000

09/572162

Harvey L. Berger - Redondo Beach CA
Dennis A. Nivens - Hermosa Beach CA
Reginald Jue - Manhattan Beach CA

Northrop Grumman Corporation - Redondo Beach CA

H04B 7185

455427, 455 121, 455 131

A ground terminal renders feasible a communications system that locates two satellites at the same node along the geostationary arc. Each satellite is capable of receiving RF signals through an uplink channel and transmitting RF signals through a downlink channel distinct from the uplink channels. The ground terminal is able to transmit RF signals to only one of the satellites, but can receive RF signals from both of the satellites. The ground terminal includes an antenna, an RF signal processor that includes two demodulators for processing signals from the two downlink channels, and a data processor.

6697344, Feb 24, 2004

Mar 16, 1999

09/270167

Dominic P. Carrozza - Redondo Beach CA
Gregory S. Caso - Hermosa Beach CA
Vincent C. Moretti - Torrance CA
Reginald Jue - Manhattan Beach CA
David A. Wright - Solana Beach CA

Northrop Grumman Corporation - Redondo Beach CA

H04B 7185

370316, 370321, 370503, 455 121, 455 132, 455427

An initial entry processor ( ) for use in a processing satellite ( ) in a satellite based communications system ( ) is provided having a buffer ( ), a detection and timing circuit ( ) and an identity circuit ( ). The buffer ( ) stores an initial entry burst ( ) transmitted from at least one terrestrial terminal ( ) to the processing satellite ( ). The detection and timing circuit ( ) detects the initial entry burst ( ) and determines a time of arrival of the initial entry burst ( ) relative to an initial entry burst slot ( ). The identity circuit ( ) determines an identity of the terrestrial terminal ( ) that transmitted the initial entry burst ( ) such that the time of arrival is used by the identified terrestrial terminal ( ) during subsequent communications with the processing satellite ( ).

6717945, Apr 6, 2004

Jun 19, 2000

09/596738

Reginald Jue - Manhattan Beach CA
David A. Wright - Solana Beach CA

Northrop Grumman Corporation - Los Angeles CA

H04L 1228

370392, 37039571, 370415

The present invention provides a method and apparatus for arbitration among the inputs of a crossbar cell switch. The input cells of the crossbar cell switch are stored at their respective input ports in input queues prior to switching. The first cell of each input queue is known as the Head of Line (HoL) cell. For each set of HoL cells that may be directed to a specific output port, the HoL cell with the largest input port queue size is assigned to be switched during the current switching epoch. The method and apparatus for arbitration allows the crossbar cell switch to operate with smaller input queues, increasing the throughput of the switch and minimizing both the transit delay for the data cells through the switch and the buffer size needed to accommodate input queues.

6760566, Jul 6, 2004

Jun 19, 2000

09/596811

David A. Wright - Hermosa Beach CA
Dennis A. Nivens - Hermosa Beach CA
Michael S. Munoz - Redondo Beach CA
Reginald Jue - Manhattan Beach CA
Dominic P. Carrozza - Redondo Beach CA

Northrop Grumman Corporation - Los Angeles CA

H04B 7185

455 134, 455522, 370318

A method and apparatus for closed-loop power threshold leveling for a satellite communication system. An aspect of the present invention includes a plurality of user earth terminals (UET), a satellite and a network control center (NCC). The NCC polls the UETs to obtain power profile information. When polled, the UELTs form power profile responses and send the responses back to the NCC. The NCC forms a power profile database and statistically analyzes the power profile information to determine an uplink power threshold adjustment. The NCC transmits the uplink power threshold adjustment to the satellite, which adjusts an on-board uplink power level threshold in response to the uplink power threshold adjustment. In systems using mutltiple coding levels, the NCC determines uplink power offset values corresponding to the individual coding levels. The NCC delivers the uplink power offset values to the UETs which update their local power offset values.

6973089, Dec 6, 2005

Jun 21, 2000

09/599041

Stuart T. Linsky - San Pedro CA, US
Lisa A. Moy-Yee - Torrance CA, US
Scott A. Cooper - Torrance CA, US
Reginald Jue - Manhattan Beach CA, US
Vincent Nguyen - Garden Grove CA, US
Kevin M. Yasui - Redondo Beach CA, US
Andrew T. Nguyen - Orange CA, US

Northrop Grumman Corporation - Los Angeles CA

H04L012/56
H04B007/00
H04Q007/00

37039531, 3703102, 370329

A downlink frame processing system () includes a packet switch () routing self addressed uplink data () from an input port to an output port, a memory () coupled to the output port, and a downlink scheduler () coupled to the memory (). The memory () includes storage for at least two downlink beam hop locations (). The downlink scheduler () processes from one of a plurality of segments at least one scheduling entry () that includes, for example, a header field () defining at least one of a payload and frame type () for at least one of a payload and frame () to be transmitted, and payload data pointers () into the memory ().

6992992, Jan 31, 2006

Jun 21, 2000

09/599040

Scott A. Cooper - Torrance CA, US
Reginald Jue - Manhattan Beach CA, US
Esmaell Yousefi - Manhattan Beach CA, US
David A. Wright - Hermosa beach CA, US
Stuart T. Linsky - San Pedro CA, US
Mark E. Bever - Redondo beach CA, US

Northrop Grumman Corporation - Los Angeles CA

H04B 7/212

370324, 370321, 370316, 455 121

A frame signal () for communicating payloads () of data includes a first payload field () and a first header field () with a first frame type indicator (). The frame signal () also includes a second payload field () and a second header field () smaller than the first header field () that includes a second frame type indicator (). The first payload field (), first header field (), second payload field (), and the second header field () are encapsulated in a single frame () to provide multiple payload delivery with reduced overhead compared to individually transmitted single payload frames.