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:
Jan. 04, 1994
Filed:
May. 23, 1990
Applicant:
Inventor:
Nigel T Poole, Natick, MA (US);
Assignee:
Digital Equipment Corp., Maynard, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395600 ; 36471502 ; 364D / ; 3642516 ; 3642821 ; 3642823 ;
Abstract
A method and apparatus for addressing compressed nodes in a database structure is disclosed in which each compressed node is associated with a particular mapping function and each element in the node is assigned a particular identification code. The character to be searched is converted into a physical address having a first portion which is used to index to a particular element in a compressed node, and a second portion which is used to verify that the selected element corresponds to the search character.