Track cross signal correction apparatus
US5878006A · kind A · utility
4Cited by
5References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/08541
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A track cross signal correction apparatus removes noise components contained in a track cross signal. The apparatus includes mask signal generator for comparing pulse widths of the received track cross signals with threshold values, based on the pulse width of a previous track cross signal. A mask signal is generated according to the comparison result. A corrector outputs a received track cross signal when mask signals are generated from the mask signal generator. The track cross signal correction apparatus accurately performs a track seek operation in a medium such as a CD-ROM which requires high-speed access.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.