Please download the dossier by clicking on the dossier button x
×

Non-volatile memory data protection

  • US 6,556,476 B1
  • Filed: 03/11/2002
  • Issued: 04/29/2003
  • Est. Priority Date: 03/11/2002
  • Status: Expired due to Fees
First Claim
Patent Images

1. A write-protected memory, comprising:

  • an addressable memory array including a plurality of memory cells;

    a plurality of toggle flags each associated with each one of said memory cells;

    a special-write input for controlling a direct writing of data to each of said memory cells; and

    a normal-write input for conditionally writing data to each of said memory cells dependent on a pristine state of a corresponding one of the plurality of toggle flags;

    wherein, data is prevented from being written into any of said plurality of memory cells by the normal-write input if said corresponding one of the plurality of toggle flags is not in a pristine state.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×