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.

Date of Patent:
Feb. 14, 2012

Filed:

Oct. 28, 2008
Applicants:

Mark H. Costin, Bloomfield Township, MI (US);

Mingguang Yu, West Bloomfield, MI (US);

James T. Kurnik, Linden, MI (US);

Trenton W. Haines, Novi, MI (US);

Paul A. Bauerle, Fenton, MI (US);

Inventors:

Mark H. Costin, Bloomfield Township, MI (US);

Mingguang Yu, West Bloomfield, MI (US);

James T. Kurnik, Linden, MI (US);

Trenton W. Haines, Novi, MI (US);

Paul A. Bauerle, Fenton, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system comprises a general-purpose memory, a lockable memory, a memory management unit, and a processor. The general-purpose memory includes data for a first set of addresses. The lockable memory includes data for a second set of addresses. The memory management unit selectively writes data to one of the general-purpose memory and the lockable memory and selectively locks the lockable memory by preventing writes to the lockable memory. The processor instructs the memory management unit to unlock the lockable memory before requesting a write to one of the second set of addresses.


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