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:
Jun. 25, 1996
Filed:
Feb. 22, 1994
Applicant:
Inventor:
Robert J Rubin, Richardson, TX (US);
Assignee:
Convex Computer Corporation, Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380-4 ; 380 23 ; 380 25 ; 380 49 ;
Abstract
Disclosed are systems and methods for protecting a software program from unauthorized use and copying through the removal at least one of a plurality of instructions comprising a software program, and encrypting the removed instruction utilizing an encryption algorithm to produce an encrypted instruction, the encryption algorithm responsive to a randomly generated key.