Thin-film, compliant, non-pressure-point-telegraphing, electromagnetic read/write head structure
US4503439A · kind A · utility
Inventor
Key dates
| Filing date | Mar 8, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Mar 8, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin-film, floppy and compliant, electromagnetic, read/write head structure which is adapted to be pressed against a magnetic imaging medium during reading and writing. Individual heads and associated structure are distributed like "bumps" on one face of a support substrate--the opposite face of which is the one designed to contact a medium. Other bumps, some connected functionally with the heads, and others isolated from the heads, are distributed over the same first-mentioned substrate face in a manner whereby they cooperate with the head bumps to minimize preferential point-pressure telegraphing (through the substrate to a recording medium) during compliant pressure-biased contact with such a medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.