Information processing apparatus including magnetic material having a predetermined magnetization pattern with respect to a recording medium
US5278704A · kind A · utility
36Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1991 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Sep 5, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01Q80/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information processing apparatus including a recording medium, a magnetic material having a predetermined magnetization pattern with respect to the recording medium, a first device for detecting the magnetization pattern of the magnetic material, a second device for detecting a change of the recording medium and a third device for driving the recording medium and the second device relative to each other, based on a signal from the first device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.