Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Naoyasu Miyagawa"'
Autor:
Naoyasu Miyagawa
Publikováno v:
Frontiers of Optoelectronics. 7:409-424
This paper gives an overview of the research and development progress on Blu-Ray Disc TM (BD) rewritable/recordable media for more than 20 years. The writable BD media had been developed for consumer use like video-recording/personal computer (PC) bu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b38acc6a3e6256d05ae602f57baade5f
https://doi.org/10.1007/s12200-014-0413-7
https://doi.org/10.1007/s12200-014-0413-7
Autor:
Masud Mansuripur, Naoyasu Miyagawa
Publikováno v:
Journal of the Magnetics Society of Japan. 25:437-440
A method of recording data on a recording medium includes mapping the data to a set of write symbols wherein each write symbol represents more than one bit of the data. The set of write symbols is defined by defining a set of variable write parameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a3bfc4822cc6661462b9b1bf1626286
https://doi.org/10.3379/jmsjmag.25.437
https://doi.org/10.3379/jmsjmag.25.437
Publikováno v:
Japanese Journal of Applied Physics. 47:5878-5880
To clarify the potential of our 1×–4× speed dual layer Blu-ray disc recordable media (BD-R) in higher speed recordings, we evaluated the recording performance of each layer on over 4× speed recording. The approaches are simulations and experimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38418d0b089200d81d3fec503263a924
https://doi.org/10.1143/jjap.47.5878
https://doi.org/10.1143/jjap.47.5878
Publikováno v:
Japanese Journal of Applied Physics. 45:1207-1209
Write strategy optimization is desirable for expanding system margins. However, this process is very complex and time-consuming. We propose one-path calibration method of write strategy using simultaneous linear equations for Blu-ray disc. In this me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fca94a9235288aa27364b8924060193
https://doi.org/10.1143/jjap.45.1207
https://doi.org/10.1143/jjap.45.1207
Publikováno v:
Japanese Journal of Applied Physics. 45:1223-1225
We have confirmed the necessary conditions to achieve data recording at a channel bit rate of over 500 Mbps. We discuss the approaches and experiments adopted to realize such high-speed data recording by way of present available techniques. In order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26888ea6fc9510fd14793d430e1e41b3
https://doi.org/10.1143/jjap.45.1223
https://doi.org/10.1143/jjap.45.1223
Publikováno v:
Applied optics. 31(35)
The best configuration for holographic optical heads for compact disk players is discussed from the viewpoint of considering the misalignment allowance for head components. Focus-error and trackingerror signals of the proposed head configurations are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::128e8f7db73e3f5770b355abdb4c6248
https://pubmed.ncbi.nlm.nih.gov/20802622
https://pubmed.ncbi.nlm.nih.gov/20802622
Autor:
Hideki Kitaura, Haruhiko Habuta, Noboru Yamada, Kenichi Nishiuchi, Katsuyuki Takahashi, Shigeru Furumiya, Yukako Doi, Naoyasu Miyagawa
Publikováno v:
SPIE Proceedings.
TEL: +81-6-6906-0453, FAX: +81-6-6904-6175 E-mail: miyagawa.naoyasu@jp.panasonic.com ABSTRACT 50GB BD-R media with Te-O-Pd recording material was estimated to have a life expectancy of over 500 years according to acceleration test unde r stressed con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb614edf4e6b858d5ff569d52071641a
https://doi.org/10.1117/12.692283
https://doi.org/10.1117/12.692283
Autor:
K. Hisada, Y. Sakaue, T. Nishihara, Kenichi Nishiuchi, Hideki Kitaura, A. Nakamura, Noboru Hirakata-Shi Yamada, Naoyasu Miyagawa, R. Kajima, T. Akiyama
Publikováno v:
International Symposium on Optical Memory and Optical Data Storage Topical Meeting.
The requirements for dual layer optical disc from the view point of optical property were reviewed and practical approaches were demonstrated. It was experimentally confirmed that our new rewritable blue dual-layer optical disk with (Ge,Sn)Te-Sb/sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::494b19e47529dc45e34e088d043eebc0
https://doi.org/10.1109/omods.2002.1028681
https://doi.org/10.1109/omods.2002.1028681
Publikováno v:
SPIE Proceedings.
The contributions to noises in optical disk readout caused by the surface roughness on the disk are calculated using a full vector diffraction theory. The sources of noise are assumed to be small periodic bumps existing on land or groove, as well as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed4503d9b9be766b14154c84e5ca7a4d
https://doi.org/10.1117/12.399333
https://doi.org/10.1117/12.399333
Publikováno v:
SPIE Proceedings.
Current status of high density recording on phase change optical disks is summarized. More than 4.1 Mbits/mm2 density of direct overwriting on phase change disks was achieved using red (680 nm) high power (35mW) LDs, large NA (0.6) optics, thin (t0.6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfd0c4323c6810fce221fdb96d47b197
https://doi.org/10.1117/12.218722
https://doi.org/10.1117/12.218722