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:
Apr. 06, 1999
Filed:
Sep. 19, 1996
Matthew C Hendricks, Palo Alto, CA (US);
Kirk R Martinez, San Jose, CA (US);
Naresh U Mehta, Santa Clara, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A system and method for performing complex queries in a database system. The method identifies a single type of entity in the database. A table or set of columns is formed that is used to track which entries meet the various subcriteria in a complex query through entry of binary marker bits. Logical operations may be performed on such marker bits to identify those entities meeting the specified search criteria. Through appropriate search planning, the bits may be 'reused' during the query search. The method may be used in combination with, for example, index searches and other optimized searching techniques.