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John M Efseaff

from Yorba Linda, CA
Age ~59
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Also known as:
Sheri Efseaff, John E, John F
Phone and address:
17240 Drake St, Yorba Linda, CA 92886
(714) 579-6544
Related to:
Andrew Makshanoff, 78Kimberly A Efseaff, 61Suzanne M Makshanoff, 56Patricia A Efseaff, 82Lauri A Shubin, 48Nicholas A Efseaff, 30Katsya EfseaffLouise M Petrushkin, 80Morrie A Efseaff, 87Matthew EfseaffSheri L Efseaff, 53William L Petrushkin, 80James W Makshanoff, 57Alex M Efseaff, 63
Connected to:
Andrew Efstathiou, 33Jennifer Efstathion, 36Maria Efstathiades, 55Alex J Efstratiou, 32Alexandra Efstratiou, 31Ernest G Efstratis, 105Karen C Efstration, 72Menelaos Efstratios, 92Stratos E Efstratiou, 136Ashley Efta, 37

John Efseaff Phones & Addresses

  • 17240 Drake St, Yorba Linda, CA 92886 (714) 579-6544
  • 2 Navajo Trail Ln, Pomona, CA 91766
  • Diamond Bar, CA
  • Corona, CA
  • Whittier, CA
  • Orange, CA
  • 17240 Drake St, Yorba Linda, CA 92886

Resumes

Resumes

John Efseaff Photo 1

Staff Software Developer

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Location:
Whittier, CA
Industry:
Consumer Electronics
Work:
Kofax Apr 2017 - Jul 2018
Principal Software Engineer
L-3 Interstate Electronics Corporation Apr 2017 - Jul 2018
Staff Software Developer
Comtech Telecommunications Corp. Oct 2008 - Mar 2017
Lead Software Engineer
Magellan Navigation Jun 1996 - Oct 2008
Staff Software Engineer
Amano 1988 - 1996
Software Engineer
Education:
Devry Institute 1985 - 1988
Bachelors, Bachelor of Science, Electronics Engineering California High School 1980 - 1983
Devry University
Skills:
Software Development
C++
Mobile Devices
Embedded Systems
Clearcase
Software Engineering
Linux
Tcp/Ip
Visual Studio
Wireless
C
Algorithms
Agile Methodologies
Testing
Program Management
Xml
Java
Uml
Firmware
Clearquest
Device Drivers
Android
Software Development Life Cycle
Agile Application Development
Telematics
Iphone Application Development
Gradle
Cmake
Opengl
Opengl Es
Spatial Databases
Windows Ce
Objective C
Amx
Vrtx
Smx
Qt
Microsoft Visual Studio C++
Xcode
Automotive Infotainment
Eclipse
Jira
Github
Perforce
Android Studio
Qt Creator
Iphone
Android Sdk
Ios Development
John Efseaff Photo 2

John Efseaff

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Business Records

Name / Title
Company / Classification
Phones & Addresses
John Efseaff
Manager
Amano Cincinnati Inc
Office Machines Nec (Manufactu · Textile Machinery Manufacturing
Anaheim, CA 92807
1485 N Manassero St, Anaheim, CA 92807
(714) 970-2280, (714) 970-0150, (714) 970-2212, (714) 970-8899

Publications

Us Patents

Method And Apparatus For Substituting Sensor Data For Satellite Signal In Gps Receiver

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US Patent:
20030225514, Dec 4, 2003
Filed:
May 31, 2002
Appl. No.:
10/158973
Inventors:
Anatole Lokshin - Claremont CA, US
Viktor Kulik - Claremont CA, US
John Efseaff - Pomona CA, US
International Classification:
G01C021/00
US Classification:
701/213000, 342/357120
Abstract:
Embodiments of the present invention are directed to a method and apparatus for substituting temperature sensor data for a satellite signal in a GPS receiver. In one embodiment of the present invention, a mathematical model of a GPS receiver's clock's response to temperature change is maintained. In one embodiment, the mathematical model is a third order polynomial. In one embodiment, when a GPS receiver has contact with at least four GPS satellites, the receiver collects data on changes in temperature and resulting changes in the GPS receiver's clock frequency. The data is incorporated into the GPS receiver's mathematical model. In one embodiment, the data is incorporated by modifying one or more coefficients in the mathematical model. In one embodiment, if a GPS receiver only has contact with three GPS satellites, changes in temperature and the mathematical model are used to estimate an adjustment to the signal generated by the clock.
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John M Efseaff from Yorba Linda, CA, age ~59 Get Report