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.

Date of Patent:
Aug. 22, 2017

Filed:

Mar. 14, 2013
Applicant:

Amazon Technologies, Inc., Reno, NV (US);

Inventors:

Raffaello D'Andrea, Ithaca, NY (US);

Peter R. Wurman, Raleigh, NC (US);

Michael T. Barbehenn, Bedford, MA (US);

Andrew E. Hoffman, Arlington, MA (US);

Michael C. Mountz, Cambridge, MA (US);

Assignee:

Amazon Technologies, Inc., Reno, NV (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 22/00 (2006.01); G05D 1/02 (2006.01); G05B 19/418 (2006.01);
U.S. Cl.
CPC ...
G05D 1/0291 (2013.01); G05B 19/41895 (2013.01); G05D 1/0212 (2013.01); G05D 1/0297 (2013.01); G05B 2219/31003 (2013.01); G05B 2219/45056 (2013.01); G05D 2201/0216 (2013.01); Y02P 90/285 (2015.11);
Abstract

A method for moving one or more mobile drive units within a workspace includes receiving, from a first mobile drive unit, a reservation request requesting use of a first path segment to move in a first direction. The method further includes determining that a second mobile drive unit is currently located on the first path segment and determining whether the second mobile drive unit is moving in the first direction. Additionally, the method includes transmitting a reservation response indicating that the reservation request is denied, in response to determining that the second mobile drive unit is not moving in the first direction. The method also includes transmitting a reservation response indicating that the reservation request is granted, in response to determining that the second mobile drive unit is moving in the first direction.


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