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:
Sep. 24, 1996
Filed:
Feb. 14, 1994
Johann Borenstein, Ann Arbor, MI (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
An improved device and method for performing accurate mobile robot dead-reckoning by performing Internal Position Error Correction (IPEC) which corrects systematic as well as non-systematic dead-reckoning errors. A first variation utilizes a smart encoder trailer which adapts an existing dead-reckoning mobile robot. A second variation provides a pair of robotic vehicles coupled with a compliant linkage which monitors relative positioning between the vehicles in order to perform internal position error correction. A third and final variation utilizes a pair of decoupled mobile robotic vehicles, each performing dead-reckoning, further provided with individual transmitter and receiver arrays which determine relative positioning therebetween in order to perform internal position error correction.