Magnetic head translation system for recording and reproducing on magnetic-on-film layer
US5572269A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | May 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording and/or reproducing head system particularly for use for writing and/or reading information on tracks in a magnetics-on-film (MOF) layer in the image area of photographic filmstrips, wherein the system provides for mounting of such magnetic heads on a suspension and translation system to move the magnetic heads from track to track of the MOF layer and longitudinally along a selected track. The filmstrip exhibits a lengthwise curvature of a predetermined sign and a cross-film curvature. The filmstrip is advanced to a stationary position in a curved transport path in the length dimension of the filmstrip, the curved transport path having a curvature radius of the same sign as the predetermined curvature sign of the filmstrip. The filmstrip edges are engaged in edge guides such that the transport path curvature and the edge guides negate cross-film curvature. The magnetic head is lengthwise translated along the selected track following the curvature radius on a head track selection assembly which includes a head track guide connected between first ends of a pair of positioning arms extending across the film edge guides for supporting the magnetic head for engagemen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.