JOHN FREDRICK SHAEFFER
Pilots at Somerset Ln, Marietta, GA
License number
Georgia A4994029
Issued Date
Feb 2017
Expiration Date
Feb 2019
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
441 Somerset Ln SE, Marietta, GA 30067
Personal information
See more information about JOHN FREDRICK SHAEFFER at radaris.comName
Address
Phone
3278 Hunterdon Way SE, Marietta, GA 30067
1551 16Th St, Columbus, GA 31901
1551 16Th Ave, Columbus, GA 31901
1401 16Th St, Columbus, GA 31901
Columbus, GA
Professional information
See more information about JOHN FREDRICK SHAEFFER at trustoria.com
Lu Factorization Of Low Rank Blocked Matrices With Significantly Reduced Operations Count And Memory Requirements
Lu Factorization Of Low Rank Blocked Matrices With Significantly Reduced Operations Count And Memory Requirements
US Patent:
2013000, Jan 3, 2013
Filed:
Sep 12, 2012
Appl. No.:
13/611353
Inventors:
John F. SHAEFFER - Marietta GA, US
International Classification:
G06F 7/00
US Classification:
708203
Abstract:
Methods and apparatus for fast computation of a system interaction matrix with significantly reduced operations count and memory requirements are disclosed. In one embodiment, an ordered set of input points or values is determined so that factors of the system interaction matrix have low rank. The system interaction matrix is partitioned into blocks so that a dimension of a block corresponds to a number of unknown values in a group. The logical partition is created without computing the system interaction matrix. For the chosen partition, terms of the factorization are computed and stored in compressed form.
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
US Patent:
8209138, Jun 26, 2012
Filed:
Feb 20, 2009
Appl. No.:
12/380110
Inventors:
John Fredrick Shaeffer - Marietta GA, US
International Classification:
G06F 19/00
US Classification:
702 64
Abstract:
Methods and apparatus for analysis and design of radiation and scattering objects are disclosed. In one embodiment, unknown sources are spatially grouped to produce a system interaction matrix with block factors of low rank within a given error tolerance and the unknown sources are determined from compressed forms of the factors.
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
US Patent:
2009013, May 21, 2009
Filed:
Nov 16, 2007
Appl. No.:
11/985848
Inventors:
John Fredrick Shaeffer - Marietta GA, US
International Classification:
G06F 7/38, G01R 19/00
US Classification:
702 64, 708520
Abstract:
Methods and apparatus for analysis and design of radiation and scattering objects are disclosed. In one embodiment, unknown sources are spatially grouped to produce a system interaction matrix with block factors of low rank within a given error tolerance and the unknown sources are determined from compressed forms of the factors.
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
US Patent:
2011007, Mar 24, 2011
Filed:
Oct 9, 2010
Appl. No.:
12/901510
Inventors:
John Fredrick Shaeffer - Marietta GA, US
International Classification:
G06F 15/00, G06F 17/16
US Classification:
702196
Abstract:
Methods and apparatus for analysis and design of radiation and scattering objects are disclosed. In one embodiment, unknown sources are spatially grouped to produce a system interaction matrix with block factors of low rank within a given error tolerance and the unknown sources are determined from compressed forms of the factors.
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
Systems And Methods For Analysis And Design Of Radiating And Scattering Objects
US Patent:
7844407, Nov 30, 2010
Filed:
Jun 24, 2008
Appl. No.:
12/215034
Inventors:
John Fredrick Shaeffer - Marietta GA, US
International Classification:
G01R 29/08, G06F 19/00, G06F 17/40
US Classification:
702 57, 324457, 343703
Abstract:
Methods and apparatus for analysis and design of radiation and scattering objects are disclosed. In one embodiment, unknown sources are spatially grouped to produce a system interaction matrix with block factors of low rank within a given error tolerance and the unknown sources are determined from compressed forms of the factors.