Information processing apparatus with held distance control on track edge detection
US5299184A · kind A · utility
54Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | May 14, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/947
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is disclosed an information recording/ reproducing apparatus utilizing a probe electrode and a recording medium, based on the principle of scanning tunnel microscope. When a track groove on the recording medium is detected, the distance control between the probe electrode and the recording medium is suspended. Consequently, the tip of the probe electrode does not enter the track groove, and is prevented from collision with the recording medium. The scanning speed of the probe electrode can, therefore, be increased without the danger of such collision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.