Auto-tracking system for magnetic tape recording device
US4347534A · kind A · utility
32Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1980 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Dec 23, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/584
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pair of detecting heads are disposed in positions corresponding respectively to single heads at both ends of a multichannel head unit, symmetrically inclined with respect to the tape traveling direction. The center positions of these detecting heads are severally in alignment with the center positions of tracks of a magnetic tape. The phase difference between track playback signals reproduced respectively by these detecting heads is detected, and a tracking error is corrected in accordance with the phase difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.