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:
Jul. 25, 2000
Filed:
Oct. 30, 1997
Brett L Williams, Eagle, ID (US);
Donald D Baldwin, Boise, ID (US);
Todd Farrell, Meridian, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
An application-specific integrated circuit (ASIC) for enabling access to memory. ASIC includes a decryptor, a valid authorization storage component, an upgrade verifier, an upgrade storage component, and an enabling component. The decryptor inputs an encrypted authorization code and outputs a decrypted authorization code. The valid authorization storage component stores and outputs a valid authorization code. The upgrade verifier inputs the decrypted authorization code and the valid authorization code, compares the decrypted authorization code to the valid authorization code to determine whether access to the portion of memory is authorized, and outputs a signal to enable access to the portion of memory. The upgrade storage component stores the signal output from the upgrade verifier. The enabling component inputs a memory access signal and a signal stored in the upgrade storage component and outputs a signal indicating whether the portion of memory is enabled.