Eung Gi Paek - Germantown MD, US Mark Parent - Port Tobacco MD, US Joon Y Choe - Potomac MD, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q 3/00 H01Q 3/22 G01S 1/44
US Classification:
342368, 342398, 342375
Abstract:
A phased array antenna system includes an RF front end, a radome, and an optical calibrator embedded in the radome for enabling in-situ calibration of the RF front end. The optical calibrator employs an optical timing signal generator (OTSG), a Variable Optical Amplitude and Delay Generator array (VOADGA) for receiving the modulated optical output signal and generating a plurality of VOADGA timing signals, and an optical timing signal distributor (OTSD). The in-situ optical calibrator allows for reduced calibration time and makes it feasible to perform calibration whenever necessary.
Joon Y Choe - Potomac MD, US Eung Gi Paek - Germantown MD, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01S 13/02 G01S 13/89 H01Q 3/00
US Classification:
342159, 342 54, 342 82, 342179, 342196, 342368
Abstract:
A time-reversal imaging radar system for acquiring an image of a remote target includes an antenna array having a plurality of spaced-apart antennas, and a transceiver coupled to the antenna array for alternately transmitting a radar signal via the antenna array toward the target and for receiving target-reflected radar signals. The transceiver includes means for multiple-pass time-reversing the transmitted and received radar signals whereby coherent beam focusing is realized at both the target and at the receiver to thereby enhance the resolution of the acquired target image.
Eung Gi Paek - Germantown MD, US Mark G Parent - Port Tobacco MD, US Joon Y Choe - Potomac MD, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q 3/00 H01Q 19/06 H01S 3/00
US Classification:
342368, 343753, 359344
Abstract:
A phased array antenna system includes an RF front end, a radome, and an optical calibrator embedded in the radome for enabling in-situ calibration of the RF front end. The optical calibrator employs an optical timing signal generator (OTSG), a Variable Optical Amplitude and Delay Generator array (VOADGA) for receiving the modulated optical output signal and generating a plurality of VOADGA timing signals, and an optical timing signal distributor (OTSD). The in-situ optical calibrator allows for reduced calibration time and makes it feasible to perform calibration whenever necessary.
Eung Gi Paek - Germantown MD, US Joon Y Choe - Potomac MD, US
Assignee:
The United States of America, as represented by the Secretary of the Navy - Washington DC
International Classification:
G01S 13/00
US Classification:
342 31, 342145
Abstract:
A Time Transfer Time Reverse Mirror (TT TRM) method and system includes a radio transceiver for transmitting a series of short pulses repeatedly at a period T and for receiving from a remote node a return signal that is a retransmission of the original signal at the same period T: a clock circuit for inputting a clock signal to the transceiver: and a computer for (i) computing and generating an imaginary time-reversed signal version of the original signal, (ii) comparing the return signal with the imaginary version, (iii) computing a delay between the return signal and the imaginary version that is substantially equal to twice the time difference between the two nodes, and (iv) applying the computed delay to a clock input calibration for a desired signal. The system includes time transfer using the ionospheric reflection (refraction), producing precise synchronization among remote nodes beyond the line-of-sight and thus without necessitating GPS or communication satellites.
Eung Gi Paek - Germantown MD, US Joon Y Choe - Potomac MD, US
Assignee:
The United States of America, as represented by the Secretary of the Navy - Washington DC
International Classification:
G01S 13/89
US Classification:
342103, 342 25 E, 342 25 F, 342125, 342179
Abstract:
A distributed time reversal mirror array (DTRMA) system includes a plurality of independent, sparsely distributed time reversal mirrors (TRMs). Each of the TRMs includes an antenna; a transceiver connected to the antenna for transmitting a signal toward a target, for receiving a return, reflected signal from the target, and for retransmitting a time-reversed signal toward the target: means for phase-locking and for maintaining spatial and temporal coherences between the TRMs; and a computer including a machine-readable storage media having programmed instructions stored thereon for computing and generating the time-reversed retransmitted signal, thereby providing a phased array functionality for the DTRMA while minimizing distortion from external sources. The DTRMA is capable of operating in an autonomous, unattended, and passive state, owing to the time-reversal's self-focusing feature. The beam may be sharply focused on the target due to the coherently synthesized extended aperture over the entire array.
Kevin Boulais - Silver Spring MD Joon Choe - Potomac MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01J 4304 H01J 4300
US Classification:
313105CM
Abstract:
A microchannel plate device utilizing a semiconducting bulk material is cacterized by electron emissions of high output current density and efficiency. The channel passages in the plate device which are square in cross-section accommodates a larger open area ratio at the input and output plate surfaces. An extended range of high electron emission applications for the plate device is provided. Such applications may include a photocathode installation to which a modulation pulse input is applied under low voltages isolated from high post-accelerating voltages.
Communication With Reentry Vehicle Through Modulated Plasma
Philip W. Hesse - Ellicott City MD Han S. Uhm - Potomac MD Joon Choe - Potomac MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01Q 128
US Classification:
343705
Abstract:
Signal antennae are mounted on the casing wall between forward nose and r tail ends of an aerospace launched vehicle for radio communication through a radiation conducting sheath of plasma formed thereon by atmospheric ionization during descent of the vehicle along a non-gliding reentry path. The reentry path is maintained by vehicle guidance at a steep angle in response to data transmitted to the antennae through the radiation conducting sheath having a plasma content minimized by cooling which is thereby maintained in complete surrounding relation to the vehicle and modulated to enhance data transmission during the entire duration of vehicle descent.
Name / Title
Company / Classification
Phones & Addresses
Joon Moo Choe
J & S REFRIGERATION, INC
105-21 66 St #1A, Forest Hills, NY 11375 105-21 66 Ave #1A, Forest Hills, NY 11375
Freshfin Poké Co.™ Oct 31, 2016 - Jul 2019
Founder
Public Taco™ Oct 31, 2016 - Jul 2019
Founder
Madewell Companies Construction & Development, Llc Oct 31, 2016 - Jul 2019
Principal
Education:
The Culinary Institute of America 2013 - 2015
Associates, Culinary Arts, Business
The Culinary Institute of America 2012 - 2014
Associates, Management, Hospitality
Plano Senior High School 2011
Skills:
Culinary Skills Hospitality Menu Development Event Management Food Safety Catering Restaurant Management Customer Service Time Management Hiring Fine Dining Food Hospitality Management Microsoft Office Inventory Management Restaurants Cooking Event Planning Hospitality Industry Microsoft Excel Powerpoint Microsoft Word Revenue Analysis Food Preparation Food and Beverage Haccp Recipes Chef Employee Training Servsafe Food Service Microsoft Powerpoint Construction Real Estate Development Business Development Project Management Operations Management Entrepreneurship Concept Development Investment Properties Commercial Real Estate Restaurant Marketing
Interests:
Shopping District Artmail The Culinary Institute of America Dallas St Tourist Information Center Cannachef Katie Community Taste Addison 2010 Home Decor Net If You Miss Me Miro Uskokovic Seafood Restaurant Enter the Bao Red Stix Asian Street Food Starchefs Food Consultant Who Can Stop Us Dallas Business Journal Lee Law Firm Real Estate 오늘 뭐 먹지 D Magazine Prosource Gary Vaynerchuk Food Truck I'm Proud To Be A Christian Beautifuldays Photography Our New Monarch Legacy Hall Shopping and Retail Foodservice Distributor Chefs' Produce Company Hair Salon Show It Construction Company Creatividad Gastronomica 김훈이 Interest Restaurant Elite Daily Lawyer and Law Firm Ice Cream Shop Mac Miller Viral Zone Fun Kred Sushi Rock Stablemade Group Nameless Chefs Tiffany's Cake Creations Crowdstreet Pizza Place Just For Fun Personal Blog Fml Sushi Restaurant Culturemap Dallas Polyscience Cuisine Technology Pet Service Dallas Observer Food and Drink Snubby J Clan of Cro The Keeper Realtymogul Clothing (Brand) Suite 106 Entrepreneur Other Tv Channel Chef Broadcasting and Media Production Company College and University Crave Dfw News and Media Website Blogger Live Music Venue Freebies Gallery Com Forno Nero American Restaurant The Standard Pour Advertising Agency Plano Real Estate Investment Firm Newspaper Visit Plano Vitamins/Supplements Feb 12 2011 Madewell Companies Carlton Provisions Palletsmart Wfaa Real Estate Service Pllc Classic Bmw Freshfin Poké Co Marja Vongerichten Plano Magazine Tell Me Thrillist News Korea Texas Monthly Southern Restaurant Legacy West Burger Restaurant Chef Mccue Kitchen/Cooking Pub Entertainment Website Lavs Kitchen Table Eater Dallas Car Dealership East Dallas Advocate Society and Culture Website Lakewood Patrick's Parade Caterer Photographer Dough Pizzeria Plano Haywire Berrynaked Masu Sushi and Hibachi Shoals Health Food Restaurant Nbc Dfw Vardama Food and Beverage Company Npr Nonprofit Organization Petra and the Beast Kitchen Lto Dallas Smoothie and Juice Bar Prove It Buda Juice The Dallas Morning News Athlete Local Business Product/Service David Chang Benson Henderson Publisher Dallas Observer Guidelive Texas Doodle Darlins Magazine Plano Profile Dog Haus Biergarten Foragers Table Aaron C Community Organization Lockerz Organic Craft Edibles Public Figure If You Love Me If You Like Me Dallas Socials Media/News Company Poached Greater Dallas Restaurant Association Hooni Kim The Official
Mdeas Architects
Senior Architectural Designer
Woods Bagot Aug 2015 - Oct 2016
Project Professional
Cbt Architects May 2014 - Jul 2014
Intern Architect
Mos Architects Jul 2013 - Jul 2013
Construction Intern
Coda May 2013 - Jun 2013
Moma Ps1 - Assistant Construction Manager
Education:
Harvard University Graduate School of Design 2013 - 2015
Masters, Architecture
Cornell University 2008 - 2013
Bachelor of Architecture, Bachelors, Architecture
Cornell University 2012
Jakarta Intercultural School 2008
Stanford University 2006
Harvard University
Stradley Ronon Sep 2004 - Nov 2005
Associate
Ge Asset Managment Sep 2004 - Nov 2005
Senior Vice President and Deputy General Counsel
Ballard Spahr Llp Sep 2002 - Aug 2004
Associate
Education:
Temple University - James E. Beasley School of Law 2002
Doctor of Jurisprudence, Doctorates, Law
Virginia Tech 1992 - 1994
Master of Science, Masters, Materials Science, Engineering
Carnegie Mellon University 1987 - 1991
Bachelors, Bachelor of Science, Materials Science, Engineering
National Junior College 1986 - 1987
Bahn & Bann Edu Jul 2019 - Jan 2020
English and Us History Teacher
Davidson & Seseri, Llc Jan 2018 - Mar 2018
Legal Intern
Cisv International Jun 2017 - Aug 2017
Leader
Korean American Community Services Apr 2017 - Jun 2017
Intern
72Seconds Jun 2015 - Sep 2015
Production Assistant Intern
Education:
King's College London 2019 - 2019
Northwestern University 2015 - 2019
Bachelors, Bachelor of Arts, Political Science, Asian American Studies
The Lawrenceville School 2011 - 2015
Skills:
Social Media Microsoft Office Public Speaking Microsoft Excel Microsoft Powerpoint Microsoft Word Customer Service
Nov 2014 to 2000 General ManagerHomefront Lifestyle Staffing New York, NY Jun 2014 to Feb 2015 Private ChefAmerican Bounty Restaurant (Fine Dining) Hyde Park, NY Dec 2014 to Jan 2015 Manager In Training (Expeditor)Jean Georges' Restaurant (Three Michelin Starred) New York, NY Jan 2014 to Jun 2014 ApprenticeLola's Cafe Poughkeepsie, NY May 2013 to Oct 2013 Catering ChefSushi Rock Arlington, VA Dec 2012 to Feb 2013 Manager in TrainingRock & Makie Restaurant Group LLC Plano, TX Oct 2011 to Feb 2013 Corporate Manager
Education:
The Culinary Institute of America Hyde Park, NY 2013 to 2015 AOS in Culinary Arts and Management