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:
Nov. 20, 2001
Filed:
Sep. 29, 1999
David E. Joslin, Seattle, WA (US);
Laerte F. Morgado, Taguatinga, BR;
Kevin A. Cline, Dallas, TX (US);
i2 Technologies US, Inc., Dallas, TX (US);
Abstract
A method of using a binary tree data structure to represent a time-varying variable, and to solve queries about the variable. The tree is especially useful for solving “find” type queries, such as “What is the earliest/latest time when a minimum of y units are on hand?” The binary tree is comprised of delta nodes that store delta values, that is, changes in the value of the variable. A delta value may be an “override” value, which represents a predetermined change in value of the function, such as a capacity value of a resource that is periodically replenished.