Patent · US Expired

Information recording apparatus

US6430132B1 · kind B1 · utility

4Cited by
7References
2Claims
0Family size

Assignees

Inventors

Key dates

Filing dateNov 16, 2000
Grant dateAug 6, 2002
Priority date
Expiry dateNov 16, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B7/006
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An information recording apparatus capable of forming a fine mark reliably and highly precisely through compensation for thermal interference and heat accumulation. The information recording apparatus is provided with a recording energy irradiating unit for generating at least two recording waveforms when marks of the same length or spaces of the same length in a channel data sequence are recorded. The information recording apparatus constructed as above can realize highly reliable recording/reproducing operations and can be made compact at a low cost with a large storage capacity.

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