Signal Quality Evaluation Method for Over-30-GB Blu-ray Discs

Shiraishi, Jun; Ide, Naoki; Ohkubo, Takeru

doi:10.1143/jjap.45.1066

Cited by 9 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an effective quasi-error estimation method, SAMQES was reported in Ref. 13, which showed good correlations to the bER particularly in high-density BD systems beyond 30 GB. The definition of SAMQES is given by EQ.…”

Section: Signal Quality Evaluation Methods For High-density Recording:mentioning

confidence: 99%

High-density multilayer optical disc storage

et al. 2007

Self Cite

View full text Add to dashboard Cite

High-density multilayer optical disc storage was investigated by employing advanced signal processing methods such as adaptive equalization and adaptive partial-response maximum-likelihood (PRML) detection. Preliminary experiments, recording on single-layer and dual-layer Blu-ray discs (BD), indicate storage capability of 33.3 GB/layer with adaptive 5-tap PRML. A new signal qualification method, sequenced amplitude margin quasi-error estimation (SAMQES), was introduced for high-density multilayer recording, and possibility toward a total storage capacity of 200 GB was examined by using a six-layer BD-Recordable disc. Despite coherent interlayer crosstalk and lower signal-to-noise ratio, SAMQES showed moderate increase from those in single-layer recording.

show abstract

Section: Signal Quality Evaluation Methods For High-density Recording:mentioning

confidence: 99%

High-density multilayer optical disc storage

et al. 2007

Self Cite

View full text Add to dashboard Cite

show abstract

“…Several methods for evaluating the quality of readout signals to estimate the bit error rate in a readout system with a PRML channel have been reported. [4][5][6][7][8][9] Since readout data is determined by mark edge positions, they should be detected and controlled precisely for writing. An index called ''edge-shift'' is often used to detect mark edge positions.…”

Section: Introductionmentioning

confidence: 99%

New Edge-Shift Detection Method for Write Strategy Optimization in High-Density Optical Disc Recording

Kurokawa

Minemura

Kikukawa

et al. 2011

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

We propose a sophisticated edge-shift detection method based on the partial response maximum likelihood technology for high-density optical disc recordings. One of the major features is the capability of detecting the edge shifts of short marks that cannot be optically resolved. Another feature is that measured values are not affected by the signal-to-noise ratio in a readout signal. This ensures drive compatibility. Furthermore, the edge-shift values are sorted and evaluated corresponding to the write pulse control parameters for simplifying write strategy optimization. These features make write strategy optimization possible under an areal recording density of over 30 Gbyte/layer.

show abstract

“…It was reported that over 30 Gbyte/layer recording is possible with the PRð1; 2; 2; 2; 1ÞML method. 1,2) Multilayer recording is another solution for achieving large capacity. In multilayer recording, however, optical disc technology of more than 100 Gbyte was reported, which was a write-once type media.…”

Section: Introductionmentioning

confidence: 99%

33.4 Gbyte/Layer Recording with Adaptive Write Strategy for 100 Gbyte Rewritable Triple-Layer Disc

Nakamura

Kobayashi

Narumi

et al. 2010

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

For multilayer rewritable optical discs, we developed a new adaptive write strategy named the S-22 (sequential 2T–2T) write pulse control method, which controls the laser pulse of the 2T-mark according to the combination of both the preceding and succeeding space lengths. By applying this write strategy, a rewritable triple-layer disc based on Blu-ray disc optical systems with a capacity of 100 Gbyte was realized. In particular, the advantage of this write strategy is significant for a transparent information layer. The bit shift of sequential 2T–2T patterns, which is a dominant error in 100 Gbyte rewritable discs, was well compensated. We experimentally confirmed that adopting the S-22 write pulse control method is effective to improve symbol error rate.

show abstract

Signal Quality Evaluation Method for Over-30-GB Blu-ray Discs

Cited by 9 publications

References 6 publications

High-density multilayer optical disc storage

High-density multilayer optical disc storage

New Edge-Shift Detection Method for Write Strategy Optimization in High-Density Optical Disc Recording

33.4 Gbyte/Layer Recording with Adaptive Write Strategy for 100 Gbyte Rewritable Triple-Layer Disc

Contact Info

Product

Resources

About