HUICHIN Y DENG
Real Estate Appraisers in Harvard, MA

License number
Massachusetts 103195
Issued Date
Jun 16, 2009
Expiration Date
Aug 3, 2012
Type
Real Estate Appraiser Trainee
Address
Address
Harvard, MA 01451

Professional information

Huichin Deng Photo 1

Method And Apparatus For Operating Gradiometers In Multiple Modes

US Patent:
2011028, Nov 24, 2011
Filed:
Jan 24, 2011
Appl. No.:
13/012630
Inventors:
Huichin Y. Deng - Harvard MA, US
Kai W. Li - Chelmsford MA, US
Louis S. Palecki - Southborogh MA, US
Antonio G. Rizzo - Nashua NY, US
Assignee:
Assurance Technology Corporation - Carlisle MA
International Classification:
G01R 33/02
US Classification:
324248
Abstract:
A magnetic screening system uses directional gradiometers with high resolution and accuracy to measure magnetic field signatures of target objects (e.g., gun, knife, cell phone, keys) in a volume of interest. The measured signatures can be compared to signatures of known objects stored in a local database. Various mathematical processes may be used to identify or classify target object signatures. In a network of magnetic screening systems, the magnetic screening systems can transmit signatures to a central signature database, and a management computer can share the central signature database with all of the magnetic screening systems on the network. The magnetic screening system can operate in multiple modes, such as a tracking mode, measurement mode, and self-test mode. Through use of unique processes and designs, the magnetic screening system can achieve a high rate of processing persons for target objects.


Huichin Deng Photo 2

Magnetic Screening System

US Patent:
2006019, Sep 7, 2006
Filed:
Mar 4, 2005
Appl. No.:
11/073424
Inventors:
Louis Palecki - Southborough MA, US
William Place - Acton MA, US
Huichin Deng - Harvard MA, US
Paul Murray - Chelmsford MA, US
Charles Douglas - Middleton MA, US
Edward Bittner - Dracut MA, US
Kai Li - Chelmsford MA, US
Thomas Jewitt - Ayer MA, US
Antonio Rizzo - Nashua NH, US
Assignee:
Assurance Technology Corporation - Carlisle MA
International Classification:
G01R 33/02
US Classification:
324244000
Abstract:
A magnetic screening system uses directional gradiometers with high resolution and accuracy to measure magnetic field signatures of target objects (e.g., gun, knife, cell phone, keys) in a volume of interest. The measured signatures can be compared to signatures of known objects stored in a local database. Various mathematical processes may be used to identify or classify target object signatures. In a network of magnetic screening systems, the magnetic screening systems can transmit signatures to a central signature database, and a management computer can share the central signature database with all of the magnetic screening systems on the network. The magnetic screening system can operate in multiple modes, such as a tracking mode, measurement mode, and self-test mode. Through use of unique processes and designs, the magnetic screening system can achieve a high rate of processing persons for target objects.