The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2005
Filed:
Nov. 29, 2002
Bruno Scherzinger, Richmond Hills, CA;
Bruno Scherzinger, Richmond Hills, CA;
Applanix Corporation, INC, Richmond Hill, Ontario, CA;
Abstract
A walking stick navigator (WSN) apparatus and method comprises an aided INS (AINS) on a staff assembly with the 'look and feel' of a GPS survey instrument. When GPS is available, the AINS is aided by GPS data, and the survey or manipulates the staff assembly like a standard GPS survey instrument. When GPS is not available due to signal obstruction, the surveyor manipulates the staff assembly as a walking stick. A switch means coupled to the lower end of the staff assembly provides a stationary interval signal when the surveyor plants and holds the WSN on the ground while walking. A digital computer is coupled to be responsive to AINS output signals and to the stationary interval signals and to run a program that solves a position aiding algorithm and a velocity aiding algorithm that provide at least one aiding input to the AINS for each successive stationary interval.