James M Robbins

US Patent:

7711480, May 4, 2010

Filed:

Jun 27, 2005

Appl. No.:

11/169054

Inventors:

James E. Robbins - Los Alamitos CA, US

Assignee:

Trimble Navigation Limited - Sunnyvale CA

International Classification:

G06F 17/00
G01S 5/02

US Classification:

701213, 701207, 701214, 34235702

Abstract:

Method and apparatus for providing GPS pseudorange correction and carrier phase correction information for navigation or surveying activities over a selected geographic region S of arbitrary size. In a navigation mode, a virtual reference station (VRS), positioned near a selected location L, receives differential GPS (DGPS) correction signals, translates these signals into a selected format, and broadcasts this DGPS information in this format for use by a local user. In a survey mode, the VRS receives corrected GPS information, translates this information into a selected format and broadcasts this translated and corrected GPS information and the VRS location, for use by a mobile station in forming a baseline vector from the GPS mobile station to the VRS location.

US Patent:

20060282216, Dec 14, 2006

Filed:

Aug 18, 2006

Appl. No.:

11/506300

Inventors:

James Robbins - Los Alamitos CA, US

International Classification:

G01C 21/00

US Classification:

701214000

Abstract:

Method and apparatus for providing GPS pseudorange correction and carrier phase correction information for navigation or surveying activities over a selected geographic region S of arbitrary size. In a navigation mode, a virtual reference station (VRS), positioned near a selected location L, receives differential GPS (DGPS) correction signals, translates these signals into a selected format, and broadcasts this DGPS information in this format for use by a local user. In a survey mode, the VRS receives corrected GPS information, translates this information into a selected format and broadcasts this translated and corrected GPS information and the VRS location, for use by a mobile station in forming a baseline vector from the GPS mobile station to the VRS location.

US Patent:

20080096684, Apr 24, 2008

Filed:

Oct 24, 2006

Appl. No.:

11/552476

Inventors:

Edison R. Lara - Palos Verdes Estates CA, US
Charles H. Jackson - Los Angeles CA, US
Donald Williams - Tarzana CA, US
James Howard Robbins - Hudson OH, US

International Classification:

A63B 69/36

US Classification:

473278

Abstract:

A golf practice mat comprising a backing defining an upper surface and a lower surface, a first plurality of elongated polyethylene fibers stitched onto the backing so as to project upwardly from the upper surface thereof, a second plurality of durable nylon fibers stitched onto the backing adjacent to and curled about the first plurality of fibers, the first and second pluralities of fibers being adhesively bonded to the backing and a shock absorbing pad bonded to the lower surface of the backing.