Patent · US Expired

Information recording/reproducing system for recording/reproducing information in three-dimensional recording medium of a light passing-through type

US6545971B1 · kind B1 · utility

4Cited by
13References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 27, 2000
Grant dateApr 8, 2003
Priority date
Expiry dateJan 27, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2007/0013
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A recording/reproducing system records/reproduces information in a three-dimensional optical recording medium wherein information is recordable at three-dimensional optional positions and wherein position reference regions having optical characteristics different from those of recordable regions are previously provided at predetermined positions, and for reproducing information recorded in the three-dimensional optical recording medium. The recording system comprises a light source, a detector, a moving mechanism, and a light intensity adjuster. The reproducing system comprises a light source, a condenser, a detector, a moving mechanism, and a reproducing device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.