System for reproducing a signal recorded in a magnetic recording medium by using a magnetostatic wave
US5065378A · kind A · utility
1Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Oct 29, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/115
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic record reproducing method includes the steps of bringing a magnetic film, capable of producing a magneto static wave, into intimate contact with or proximity to the recording surface of a magnetic recording medium, causing the magnetic film to produce the magnetostatic wave, detecting any variation in wave number in the magnetostatic wave attributable to the magnetized signal of the recording surface, and converting the variation in wave number in the magnetostatic wave into an electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.