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:
Dec. 29, 1998
Filed:
Oct. 18, 1996
Applicant:
Inventors:
Assignee:
Yeda Research and Development Co. Ltd., Rehovot, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
707-9 ; 707 10 ; 380-4 ; 380 25 ; 380 49 ;
Abstract
Method for retrieving data from a database, while assuring privacy, which comprises providing a database address for the data sought to be retrieved, generating at least two messages and communicating them to two or more database copies, generating two replies from the database copies, wherein one or more of said messages depends on the database address, a pseudo random or random number and wherein each reply depends on the message transmitted to the specific database copy, and the retrieved data is calculated as a function of said replies.