Randall L. Baumbach - Arnold MD Richard G. Berard - Chelmsford MA Robert G. Curtis - Sudbury MA
Assignee:
Raytheon Company - Lexington MA
International Classification:
H04L 706 H03D 324
US Classification:
375113
Abstract:
A timing recovery apparatus for a burst mode communication receiver. The apparatus provides for optimum sampling and digitizing of received data at a plurality of data rates. In particular, a VCO is phase-locked to a local frequency reference prior to data being received. A reference timing preamble transmitted prior to the data is filtered and fed to the VCO causing it to injection lock such that the VCO becomes phase aligned with the preamble. The VCO is then permitted to "free run" during data transmission and continues to operate at substantially the same frequency. A synchronous divider and multiplexer, responsive to the VCO, allows selection of sampling clocks for the plurality of data rates. The divider is forced to a known state during VCO injection locking, to assure that the sampling clocks have maintained the proper phase for optimal sampling at the corresponding data rate. Further, means is provided to monitor the frequency of the VCO.
Randall L. Baumbach - Arnold MD Robert G. Curtis - Sudbury MA Richard G. Berard - Chelmsford MA
Assignee:
Raytheon Company - Lexington MA
International Classification:
H04B 710
US Classification:
375100
Abstract:
A receiver including two optimizers for demodulation, sampling and quantization of received QPSK digital data. One optimizer adjusts the phase of a reference signal used for demodulating the QPSK data into baseband in-phase and quadrature channels and another optimizer adjusts a sampling clock used to sample and quantize the baseband channels. The reference signal and the sampling clock are dithered in quadrature. Variations in the amplitude of the quantized data extracted by an eye quality monitor. Each optimizer multiplies the eye quality monitor output by a corresponding dither clock and integrates to form an error signal. Phase shifters, responsive to corresponding error signals and dithered clocks, adjust the phase of the demodulation reference signal and sampling clock. The data quality signal monitor translates the magnitude of the quantized data signals to a common set of signals for each state of the data signal. These common signals are translated into a voltage representing the degree to which the data signal amplitude corresponds to a predetermined value.
Timing Recovery Scheme For Burst Communication Systems Having A Vco With Injection Locking Circuitry
Randall L. Baumbach - Arnold MD Richard G. Berard - Chelmsford MA Robert G. Curtis - Sudbury MA
Assignee:
Raytheon Company - Lexington MA
International Classification:
H03B 512 H03L 706
US Classification:
331117R
Abstract:
A timing recovery apparatus for a burst mode communication receiver. The apparatus provides for optimum sampling and digitizing of received data at a plurality of data rates. In particular, a VCO is phase-locked to a local frequency reference prior to data being received. A reference timing preamble transmitted prior to the data is filtered and fed to the VCO causing it to injection lock such that the VCO becomes phase aligned with the preamble. The VCO is then permitted to "free run" during data transmission and continues to operate at substantially the same frequency. A synchronous divider and multiplexer, responsive to the VCO, allows selection of sampling clocks for the plurality of data rates. The divider is forced to a known state during VCO injection locking, to assure that the sampling clocks have maintained the proper phase for optimal sampling at the corresponding data rate. Further, means is provided to monitor the frequency of the VCO.
Millcreek AnesthesiaMillcreek Anesthesia PC 1200 E 3900 S Anesthesia Dept, Salt Lake City, UT 84124 8019939530 (phone), 6782856776 (fax)
Education:
Medical School Des Moines University College of Osteopathic Medicine Graduated: 1997
Languages:
English
Description:
Dr. Curtis graduated from the Des Moines University College of Osteopathic Medicine in 1997. He works in Salt Lake City, UT and specializes in Anesthesiology. Dr. Curtis is affiliated with Lone Peak Hospital and St Marks Hospital.
Pine Hill Health Center Bia Rte 140, Ramah, NM 87357 5057753271 (phone), 5057753633 (fax)
Education:
Medical School University of New Mexico School of Medicine Graduated: 2002
Languages:
English Spanish
Description:
Dr. Curtis graduated from the University of New Mexico School of Medicine in 2002. He works in Pinehill, NM and specializes in Family Medicine. Dr. Curtis is affiliated with Gallup Indian Medical Center and Zuni Indian Hospital.
Jun 2012 to 2000 ControllerSealy Corporation Conyers, GA Jul 2011 to May 2012 Area ControllerPorex Technologies Fairburn, GA Jun 2007 to Jul 2011 Senior Cost AccountantTerumo Medical Corporation Elkton, MD Aug 2005 to Jun 2007 Cost Accounting ManagerMail Well Envelope Bensalem, PA May 2002 to Aug 2005 Plant ControllerMedicia Corporation Dayton, NJ May 2001 to May 2002 Cost Accountant
Education:
Wilmington University Wilmington, DE 2005 to 2006 MBA in BusinessRutgers University Camden, NJ 1996 to 2000 BS in Finance
Naval Hospital Corps School Great Lakes Great Lakes, IL Jul 2011 Medical CorpsmanExeter High School Exeter, NH 2007 to 2009Pentucket High School 2005 to 2007 Nursing Services Volunteer Coordinator
Naval Hospital Corps School Great Lakes Great Lakes, IL Jul 2011 Medical CorpsmanExeter High School Exeter, NH 2007 to 2009Pentucket High School 2005 to 2007 Nursing Services Volunteer Coordinator
Aug 2008 to 2000 Director Development Resources & Disaster Assistance DivisionUSDA/ Foreign Agricultural Service Washington, DC Feb 2006 to Aug 2008 EUROPE DIVISION, DirectorUSDA/Foreign Agricultural Service Washington, DC Aug 2004 to Feb 2006 IMPORT POLICY AND PROGRAM DIVISION, DirectorUS EMBASSY Vienna, Austria
Jul 2000 to Jul 2004 Agricultural CounselorU.S. CONSULATE Milan, Italy
Jul 1997 to Jul 2000 Agricultural Trade OfficerUSDA/Foreign Agricultural Service Washington, DC Aug 1992 to Jul 1997 AFRICA, MIDDLE EAST, & E. EUROPE DIVISION, Deputy DirectorUS Embassy Santiago, Chile
Jun 1988 to Jul 1992 Agricultural AttacheU.S. Embassy Buenos Aires, Argentina
Aug 1986 to Jun 1988 Agricultural Attache
Education:
Michigan State University Jan 1982 M.S. in Agricultural EconomicsMichigan State University 1980 B.S. in Public Affairs ManagementMichigan State University 1979 B.S. in Resource Development
Skills:
Fluent English and Spanish, Conversational Italian and German, Basic Guarani and Portuguese
Don J. Murphy Construction Hampton, NH 2010 to 2012 Roofer/PainterPrompto Seabrook, NH 1997 to 2008 Oil TechnicianAffordable Moving Amesbury, MA 1997 to 1998 Physical LaborerManchester Music Manchester, NH 1995 to 1997 Asst. Manager/ManagerPudgy's Landscaping Amesbury, MA 1994 to 1994 Physical LaborerAmesbury Chair Amesbury, MA 1987 to 1994 General Laborer
2010 to 2000 Field Support EngineerTAPESTRY SOLUTIONS Killeen, TX 2007 to 2010 Field Support EngineerCOMPUTER SCIENCE CORPORATION Chantilly, VA 2006 to 2007 Field Support RepARMY TESTING COMMAND Fort Hood, TX 2006 to 2006 Data ManagerWEST FORT HOOD Fort Hood, TX 2005 to 2006 Facilities ManagerUNITED STATES ARMY Fort Hood, TX 2003 to 2005 Senior Operation SupervisorUNITED STATES ARMY
1994 to 2005UNITED STATES ARMY
2001 to 2003 Network System Controller, GermanyUNITED STATES ARMY Fort Campbell, KY 1999 to 2001 Transmission Section Supervisor/Radio Transmissions ChiefUNITED STATES ARMY
1996 to 1999 Extension Switch Supervisor, KoreaUNITED STATES ARMY Fort Hood, TX 1994 to 1996 Microwave Systems Operator/Battalion Retention NCO
507 Brandywine Dr, West Chester, PA 19382 Brandywine Dr, West Chester, PA 19382 6106965747
Robert D. Curtis Director
Try-I3, Inc
Robert Curtis Director
University of Georgia College/University · Commercial Physical Research College/University · Mfg Fluid Milk College/University · Elementary/Secondary School · School/Educational Services
The medal was earned by his father, Army 1st Lt. Robert Curtis, during the Battle of the Bulge in December 1944. Curtis was so severely injured when an artillery shell exploded near him that he nearly died and spent six months in the hospital. He died in 1991 at age 73.
Date: Dec 22, 2016
Source: Google
US Government spending nearly $10 billion to mitigate Cyber-Attacks
stole data tapes that the contractor had left in a car. This theft exposed the health records of about 5 million current and former Pentagon employees and their families. Robert Curtis of Colorado was one of them and the court records suggest that because of theft he was besieged by identity thieves.
Date: Nov 10, 2014
Source: Google
Navy retires 58-year-old amphibious assault trainer
Robert Curtis, commanding officer of Expeditionary Warfare Group Atlantic added, And with fiscal restraints, youre always trying to do things more efficiently and its expensive to keep and entire building like this going for a demonstration when you can put it on a screen for one fixed cost and
Date: Sep 18, 2013
Category: U.S.
Source: Google
HAM operators test equipment, prepare for hurricane season
Miller, competing in the contest with Robert Curtis, of Victoria, and Paul Hereford, also of Victoria, was using Morse Code to make contact with other HAM operators across the United States and the world, even making contact with someone from Hungary.
Date: Jun 23, 2012
Category: Sci/Tech
Source: Google
Police: Woman wounded in Calif. salon shooting upgraded to good condition
Dekraai is being held without bail. Defense attorney Robert Curtis said Dekraai wasnt getting his anti-psychotic medication in jail a statement that prompted prosecutors to say they wouldnt be surprised to see an insanity defense.
Date: Oct 17, 2011
Category: U.S.
Source: Google
Victims' relatives shout at salon shooting suspect
Dekraai did not enter a plea during the hearing. His arraignment was continued to Nov. 29 after defense attorney Robert Curtis told the court he needed more time to assemble a defense team and prepare for the case.
Date: Oct 14, 2011
Category: U.S.
Source: Google
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Robert Curtis
Work:
University of Phoenix - Associate Professor (2008) Qwest - Assignment Consultant (1979-2006)
Education:
Arizona State University - Creative Writing, Arizona State University - English
Relationship:
Married
About:
Lived in Arizona for 49 years. Published and/or edited 17 books. Phi Kappa Phi, MENSA, and Order of Preachers. Enjoys woodworking, landscaping, astronomy, life sciences, and shooting sports. Strong co...
Bragging Rights:
Married 35 years, 3 children, 3 grand-children, 2 Canine Americans of nefarious lineage
Robert Curtis
Work:
Washco Intl. - Crew Leader/Fleet washer (2011)
Education:
ITT Technical Institute
Relationship:
Its_complicated
About:
If you know me then you know you have the right Robert. Yes, I'm a little off the wall at times but what the hell...that's ME
Tagline:
What's a fricking tagline...lol
Bragging Rights:
Survived high school, somewhat intact. Have 2 great kids. Surviving the constant moving between Tempe and Tucson.
Robert Curtis
Work:
Self - Building & construction (1999)
Education:
California State University, Los Angeles - Civil Engineering