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:
Aug. 31, 2010
Filed:
Nov. 26, 2004
Takayuki Ito, Osaka, JP;
Teruto Hirota, Osaka, JP;
Kouichi Kanemura, Osaka, JP;
Tomoyuki Haga, Nara, JP;
Yoshikatsu Ito, Osaka, JP;
Takayuki Ito, Osaka, JP;
Teruto Hirota, Osaka, JP;
Kouichi Kanemura, Osaka, JP;
Tomoyuki Haga, Nara, JP;
Yoshikatsu Ito, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a data processing apparatus that switches between a secure mode and a normal mode during execution, the secure mode allowing access to secure resources to be protected, the normal mode not allowing access to the secure resources, when the secure resources increase in the secure mode, the load on a protection mechanism for protecting the resources becomes large. Thus, there is a demand for data processing apparatuses that are able to reduce secure resources. The present invention relates to a data processing apparatus that stores therein a secure program including one or more processing procedures which use secure resources and a call instruction for calling a normal program to be executed in a normal mode. While executing the secure program, the data processing apparatus calls the normal program with the call instruction and operates according to the called normal program.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile