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. 25, 2003
Filed:
Oct. 21, 1999
Jelena Kovacevic, New York, NY (US);
Martin Vetterli, Brandvaux, CH;
Laurent Lorenzo Balmelli-Quadranti, St-Blaise (NE), CH;
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Processing of quadtree data structures is significantly improved with the use of an indexing that is arranged to insure that the index value of a node in column/row i and column/row j differs from the index value of a node in column/row k and row/column i by a value that is constant. With such an indexing arrangement, no indexing information, or pointer information, needs to be stored. Moreover, traversal from any node to any other node can be accomplished with a single calculation followed by a single traversal which, in the context of this disclosure, is considered to be a single step.