Transactions of the Society of Information Storage Systems (정보저장시스템학회논문집)

The Society of Information Storage Systems (정보저장시스템학회)
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Improvement of Noise Characteristics in Super-RENS Disc

Super-RENS 디스크의 노이즈 특성 향상

  • 김주호 (삼성전자(주) 디지털미디어(연)) ;
  • 김현기 (삼성전자(주) 디지털미디어(연)) ;
  • 황인오 (삼성전자(주) 디지털미디어(연)) ;
  • 박인식 (삼성전자(주) 디지털미디어(연)) ;
  • 배재철 (삼성전자(주) 디지털미디어(연))
  • Published : 2005.09.01
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Abstract

The research topic of super-RENS technology is shifting from the signal intensity (CNR; Carrier to Noise Ratio) to the signal uniformity (Jitter or bER). To achieve an uniform signal characteristics, it is important to reduce signal fluctuation in a super-RENS disc. In this study, we investigated the relation between signal fluctuation and low frequency noise (LFN), and analyzed LFN increase in recording and readout processes. It was found that signal fluctuation had a close relationship with the LFN. Also, it was found that the recorded mark shape such a bubble type and high readout power increased the LFN in recording and readout process of a super-RENS disc. So, using non-bubble type recording material and low super-resolution readout material, we markedly improved the LFN in a super-RENS disc.

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