Ning Lu

US Patent:

7687574, Mar 30, 2010

Filed:

Apr 30, 2007

Appl. No.:

11/742225

Inventors:

Ning Lu - White Plains NY, US
Anna Maria Czech - Bronxville NY, US
Pat Hoontrakul - Murfreesboro TN, US
John Nicholson - Ramsey NJ, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

C08L 83/12

US Classification:

524588, 528 25, 528 26, 528 27, 528 31

Abstract:

The compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.

US Patent:

7833541, Nov 16, 2010

Filed:

Apr 30, 2007

Appl. No.:

11/742190

Inventors:

Ning Lu - White Plains NY, US
Anna Maria Czech - Bronxville NY, US
Pat Hoontrakul - Murfreesboro TN, US
John Nicholson - Ramsey NJ, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

A61K 8/04

US Classification:

424401, 528 25, 528 26, 528 27, 528 31

Abstract:

The cosmetic compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.

US Patent:

7944389, May 17, 2011

Filed:

Jul 9, 2009

Appl. No.:

12/500256

Inventors:

Ning H. Lu - Parsippany NJ, US
Peter D. Steensma - Green Pond NJ, US

Assignee:

ITT Manufacturing Enterprises, Inc. - Wilmington DE

International Classification:

G01S 7/36

US Classification:

342 13, 342 42, 342190, 342191, 702 5, 702127

Abstract:

Systems and methods for monitoring and classifying RF emissions in the field include storing an electronic signature map (ESM) of a selected geographic area, where the electronic signature map includes previously detected emitter closeness measures (ECMs) in the selected geographic area. The ECMs are representative of detected sources of radio frequency energy. A RF energy emission is detected, a new ECM for that RF energy emission is created, and that the new ECM is compared with the ECMs in the ESM. That comparison may help to determine whether the RF energy emission should be considered a threat.

US Patent:

8615190, Dec 24, 2013

Filed:

May 31, 2011

Appl. No.:

13/149277

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

Exelis Inc. - McLean VA

International Classification:

H04K 3/00

US Classification:

455 1, 4554561, 455513, 4551153, 4554042, 455456, 342 14, 342 16, 342 17

Abstract:

According to an embodiment of the present invention jamming energy is allocated to a plurality of emitters based on a three-dimensional (3-D) emitter geolocation technique that determines the geolocation of radio frequency (RF) emitters based on energy or received signal strength (RSS) and/or time differences of arrival (TDOAs) of transmitted signals. The three-dimensional (3-D) emitter geolocations are used to rank emitters of interest according to distance and available radio frequency (RF) jamming energy is allocated to the emitters in rank order. The techniques may be employed with small unmanned air vehicles (UAV), and obtains efficient use of jamming energy when applied to radio frequency (RF) emitters of interest.

US Patent:

20120235864, Sep 20, 2012

Filed:

Mar 16, 2011

Appl. No.:

13/049443

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

G01S 5/02

US Classification:

342451

Abstract:

According to an embodiment of the present invention, a three-dimensional (3-D) energy-based emitter geolocation technique determines the geolocation of a radio frequency (RF) emitter based on energy or received signal strength (RSS) of transmitted signals. The technique may be employed with small unmanned air vehicles (UAV), and obtains reliable geolocation estimates of radio frequency (RF) emitters of interest.

US Patent:

20120293371, Nov 22, 2012

Filed:

May 19, 2011

Appl. No.:

13/111379

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

G01S 1/24

US Classification:

342387

Abstract:

According to an embodiment of the present invention, geolocations of multiple unknown radio frequency (RF) signal sources are determined using three-dimensional (3-D) geolocation techniques. The three-dimensional (3-D) geolocation techniques obtain reliable geolocation estimates of radio frequency (RF) emitters based on energy or received signal strength (RSS) of emitter transmitted signals and based on their time differences of arrival (TDOAs) at various sensor locations. The energy based geolocations and the time difference of arrival (TDOA) geolocations are combined to determine an overall set of geolocations for multiple unknown radio frequency (RF) signal sources. The geolocation information is used to track and monitor the locations of the multiple emitters.

US Patent:

20130027251, Jan 31, 2013

Filed:

Jul 27, 2011

Appl. No.:

13/191696

Inventors:

Ning Hsing Lu - Clifton NJ, US
Chi Chiu Chan - Wayne NJ, US
Qun Shi - Plainsboro NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

G01S 5/02

US Classification:

342451

Abstract:

According to an embodiment of the present invention an emitter geolocation technique determines the geolocation of a radio frequency (RF) emitter using pair-wise line-of-bearing intersections that are derived from signal-to-noise ratios of transmitted signals received at a sensor. The technique may be employed with ground based vehicle or small unmanned air vehicles (UAV), and obtains reliable geolocation estimates of radio frequency (RF) emitters of interest.

US Patent:

20130070814, Mar 21, 2013

Filed:

Sep 15, 2011

Appl. No.:

13/233445

Inventors:

Ning Hsing Lu - Clifton NJ, US

Assignee:

ITT MANUFACTURING ENTERPRISES, INC. - Wilmington DE

International Classification:

H04B 1/38

US Classification:

375219

Abstract:

Enhanced reception in a communication system is achieved by applying a time domain generated time-reversed channel response to signals transmitted from a group of transmitter to a group of receivers. The time-reversed channel response is generated from a radio frequency channel response derived from signals previously received from the group of receivers, but reversed in the time domain. The time-reversed channel response is convolved with an information signal that when transmitted in a coordinated fashion from the group of transmitters, the signals arrive at each receiver in the group of distant receiving communication devices at approximately the same time where the signals coherently combine, thereby increasing signal power at the receivers. This permits detection at a greater range or with a lower bit error rate. In addition, the many-to-many configuration enables signal power from each transmitter to be focused temporarily and spatially on each receiver.