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:
Feb. 01, 2005
Filed:
Apr. 18, 2002
Edward K. Evans, Essex Junction, VT (US);
Eric M. Foster, Owego, NY (US);
Dennis E. Franklin, Endicott, NY (US);
William E. Hall, Clinton, CT (US);
Edward K. Evans, Essex Junction, VT (US);
Eric M. Foster, Owego, NY (US);
Dennis E. Franklin, Endicott, NY (US);
William E. Hall, Clinton, CT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An access control function for an integrated system is provided which determines data access based on the master id of a requesting master within the system and the address of the data. The access control function can be inserted, for example, into the data transfer path between bus control logic and one or more slaves. In addition to determining whether to grant access to the data, the access control function can further qualify the access by selectively implementing encryption and decryption of data, again dependent on the data authorization level for the particular functional master initiating the request for data.