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:
Jun. 06, 2000
Filed:
Feb. 03, 1997
Vishram Prakash Dalvi, Folsom, CA (US);
Rodney R Rozman, Placerville, CA (US);
Christopher John Haid, Folsom, CA (US);
Jerry Kreifels, El Dorado Hills, CA (US);
Joseph Tsang, Folsom, CA (US);
Jeff Evertt, Folsom, CA (US);
Jahanshir J Javanifard, Sacramento, CA (US);
Jeffrey J Peterson, Folsom, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A flash memory device including a first memory array, block locking circuitry, and control circuitry. The memory array includes a plurality of memory blocks each having a memory cell. The block locking circuitry includes a plurality of block lock-bits and a master lock-bit. Each block lock-bit corresponds to one of the plurality of memory blocks and indicates whether the corresponding memory block is locked. The master lock-bit indicates whether the plurality of block lock-bits are locked. The control circuitry is configured to receive a passcode that causes the control circuitry to override the master lock-bit. The control circuitry may also be configured to receive a passcode that causes the control circuitry to override one of the block lock-bits.