Apparatus and methods for marking content of memory storage devices
US6817531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electrical marking device is disposed on at least one layer of a data storage array having multiple layers of data storage medium. The marking device comprises at least one display layer that may be visually altered to display information, such as the nature, subject matter, and content of the data and amount of memory storage used. The display layer comprises a plurality of data storage cells, wherein the visual appearance of each of the data storage cells is varied depending on the value of the data bit. A method is also provided for electrically marking the content of an electrical data storage device having a storage array unit with multiple layers of data storage medium. Data is stored on an outermost layer of the data storage array to electrically provide a visual display indicating information about the stored data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.