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. 13, 2007
Filed:
Mar. 17, 2004
Applicants:
Masakazu Ehama, Sagamihara, JP;
Kazuhiko Tanaka, Fujisawa, JP;
Koji Hosogi, Yokohama, JP;
Hiroaki Nakata, Kawasaki, JP;
Inventors:
Masakazu Ehama, Sagamihara, JP;
Kazuhiko Tanaka, Fujisawa, JP;
Koji Hosogi, Yokohama, JP;
Hiroaki Nakata, Kawasaki, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Security threats are reduced by providing a TLB in a bus interface unit of a media processor whose contents can be updated only from inside the media processor. The TLB checks whether an address specified by an external access request falls within access-permitted areas registered in it. If it does, an access request from outside is passed on to an inside of the media processor; otherwise, it is rejected.