Device for recording data in a disturbed environment
US5687149A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1994 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Jul 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The data-recording device comprises: a temporary safety electronic-technology medium (MEM), on which the data (D) coming from the interface (IT) are recorded temporarily, in succession, as they are received. Particular means (AC, TH) acquire at least one selected quantity relating to a predetermined environmental or operating condition of the recording device or of at least one its constituent components and supply a datum (A0, T0) representative of the said quantity acquired. The control unit (UT) comprises a recording mode in which the quantity (A0, T0) acquired is compared with at least one predetermined value (A2, T2) and, when a quantity acquired is greater than the said predetermined value, access to the recording medium of magneto-optical technology (DIS) is not authorized, whereas, when a quantity acquired is less than or equal to the said predetermined value, the data stored temporarily on the temporary safety medium (MEM) are recorded on the recording medium (DIS), as long as access to the said recording medium is authorized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.