System for detecting, coding, avoiding, and removing defects on a photosensitive web
US5745217A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and system for detecting and coding information regarding the defects into a photosensitive web containing a magnetic media. The system includes a scanner for scanning a photosensitive web for determining defects and producing a signal which provides information with respect to the defect. The system further includes a device for taking the signal and transforming it to a form capable of being placed on the magnetic media; and a recording head for recording the information onto the web. The information read may be used to locate and remove the area of the web containing the defect or advancing the web so that the portion of the web having the defect will not be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.