Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-09-12
2006-09-12
Kindred, Alford W. (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C715S252000, C717S143000
Reexamination Certificate
active
07107265
ABSTRACT:
Novel data structures, methods and apparatus for a Software Managed Tree (SMT) which provides a mechanism to create tree structures that follow a search mechanism defined by a control point processor. The search mechanism does not require storage on the previous pointer and uses only a forward pointer along with a next bit or group of bits to test thereby reducing storage space for nodes. The search mechanism processes multiple filter rules for an application without requiring multiple searches and also allows various filter rules to be chained. Two patterns of the same length are stored in each leaf to define a range compare. A compare at the end operation is either a compare under range or a compare under mask. In a compare under range, the input key is checked to determine if it is in the range defined by the two patterns. In a compare under mask, the bits in the input key are compared with the bits in a first leaf pattern under a mask specified in a second leaf pattern.
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Calvignac Jean Louis
Heddes Marco C.
Jeffries Clark Debs
Patel Piyush Chunilal
Rinaldi Mark Anthony
Cockburn Joscelyn G.
Dillon & Yodell, LLP
International Business Machines - Corporation
Kindred Alford W.
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