Information recording reproducing apparatus using pilot signals to correct tracking error
US5875065A · kind A · utility
5Cited by
12References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1996 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Aug 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/3063
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of different pilot signal components are selectively superposed on an information signal, and mark signals which can indicate the types of pilot signals to be superposed are recorded, together with the information signal, on tracks on a recording medium, on which the pilot signals associated with the mark signals are recorded. The types of pilot signals can be quickly detected in a reproduction mode, and a satisfactory tracking control state is quickly achieved by modifying the tracking control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.