Information processing device and information processing method
US5343460A · kind A · utility
54Cited by
19References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1991 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Jul 31, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01Q80/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Information is recorded by providing a recording medium having a recording layer on an electroconductive substrate transmitting an electromagnetic wave and an electroconductive optical probe arranged proximate to the recording medium, and applying a voltage between the substrate and the optical probe. The recorded information is read by irradiating an electromagnetic wave, preferably with a plurality of wavelengths, on the recording layer from the substrate side, and detecting with the optical probe an electromagnetic wave oozed out on the surface of the recording layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.