Information recording and/or reproducing apparatus
US5289455A · kind A · utility
31Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1991 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Jul 23, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/881
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for recording and/or reproducing information onto/from a medium through a probe electrode. A voltage is applied between the medium and the probe electrode and a distance between the medium and the probe electrode is adjusted in such a manner that current becomes a predetermined current value, the current flowing to the probe when the voltage is applied between the medium and the probe electrode. The predetermined current value is changed in accordance with the voltage being applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.