Circumferential data recording/reproducing with a microvibration scanning probe
US5805541A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Feb 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/947
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an information processing apparatus for recording and/or reproducing a circumferential data string from a recording medium, there are provided a scanning mechanism for performing relative movement of the probe and the recording medium so that the probe scans the recording medium, a driving circuit for supplying a drive signal to the scanning mechanism so as to permit the probe to scan the recording medium circumferentially, an oscillation circuit for performing micro-vibration of the probe in a direction perpendicular to the data string, a detection circuit for detecting a signal that corresponds to a positional deviation of the probe from the data string, and a multiplier for multiplying the signal that is detected and the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.