Process and apparatus to form on a magnetic tape a latent image by means of recording and erasing magnetic heads
US5252987A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Mar 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K1/125
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Process for magnetographic printing and apparatus for carrying out said process, said process being characterized in that: PA0 a) a first information is recorded PA0 b) part of the information recorded at step (a) is erased PA0 c) a second information is recorded, at least one part of said second information is recorded in the area erased during step (b). Apparatus comprising at least three magnetic heads with at least one erasing head and two recording heads, characterized in that said erasing head is arranged so as to erase the writing area (14) common to at least two recording heads. Application to continuous printing of information of the bar code type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.