Method and apparatus for reusing non-erasable memory media
US4691299A · kind A · utility
45Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1983 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Dec 29, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Storage media such as digital optical disks, PROMS, and paper tape consist of a number of bit positions which initially contain a "zero" and which can later be irreversibly overwritten with a "one". An apparatus and method provide for rewriting in such "non-erasable memories" for expanding their capacity by allowing the non-erasable memory to be rewritten one or more time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.