Device and system for reading recording media with cross-talk correction circuitry
US5870361A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4969
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device and system for the reading of a recording medium, which enables the reading of high-density information and the removal of disturbance (or cross-talk) from the information. The invention includes chiefly a reading device carrying out the parallel reading of the information from N pixels of an optical detector array and giving at least two sub-trains of samples in series (X, Y, Z), a cross-talk correction circuit for each sub-train of samples, each sub-train giving a train of cross-talk corrected samples (X', Y', Z'), and an input sequencer giving each correction circuit a train of samples to be corrected (Ys) from a first sub-frame of samples (Y) and samples (XN-1, Z0) from at least one second frame of samples (X,Z). This device and system can be applied to the reading of high-density recording media (magnetic or optical).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.