Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Hiromi Honma"'
Publikováno v:
Japanese Journal of Applied Physics. 42:1052-1055
It is difficult to optimize the write strategy by conventional methods in high-density recording systems with very severe intersymbol interference. We have proposed a new method using the index accounting for the linearity of the channel, which is ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8441f291e3b9b5de83126575d558fe32
https://doi.org/10.1143/jjap.42.1052
https://doi.org/10.1143/jjap.42.1052
Autor:
Haruo Shindo, Hiromi Honma
Publikováno v:
Soil Science and Plant Nutrition. 44:675-678
Ando soils (Kurobokudo), which are characterized by the accumulation of large amounts of black humus, are widely distributed in Japan, and the black color is due to the presence of A type humic acids with a high degree of humification (Kumada 1987).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83e1479156700196a9375e7285c76ae7
https://doi.org/10.1080/00380768.1998.10414491
https://doi.org/10.1080/00380768.1998.10414491
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 110:623-629
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ced60385380e25388f510076a7e05f5c
https://doi.org/10.1541/ieejfms1990.110.9_623
https://doi.org/10.1541/ieejfms1990.110.9_623
Autor:
Tatsunori Ide, Hiromi Honma, Masaki Nakano, M. Kubota, Ryuichi Katayama, Toshiaki Iwanaga, Syuichi Ohkubo
Publikováno v:
International Symposium on Optical Memory and Optical Data Storage Topical Meeting.
In advanced optical recording systems, a storage capacity of more than 20 Gbytes has been reached by adopting blue laser diodes, 0.85 numerical aperture (NA) objectives and 0.1 mm thin cover layer medium. This has been accompanied by a reduction of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e784fd89011ee235f09d18bd1bb0a21a
https://doi.org/10.1109/omods.2002.1028566
https://doi.org/10.1109/omods.2002.1028566
Publikováno v:
International Symposium on Optical Memory and Optical Data Storage Topical Meeting.
Recently, there has been much research on high density recording using an NA = 0.85 objective lens . The use of PRML (partial response-maximum-likelihood) is an efficient way to handle inter-symbol interference (ISI) that degrades the bit-error-rate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2b3391bbd06d56dff13554c00a372ba
https://doi.org/10.1109/omods.2002.1028688
https://doi.org/10.1109/omods.2002.1028688
Autor:
Tatsunori Ide, Ryuichi Katayama, Hiromi Honma, Shuichi Ohkubo, Toshiaki Iwanaga, Masashi Kubota, Masaki Nakano
Publikováno v:
Japanese Journal of Applied Physics. 42:1042-1043
This paper describes our two newly developed high-density recording systems, which consist of a 35 GB system and a 20 GB system using partial response maximum likelihood (PRML) with blue laser diode (LD), and their respective evaluation systems. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5af69870c03732ce5e5ed4a72cedff5f
https://doi.org/10.1143/jjap.42.1042
https://doi.org/10.1143/jjap.42.1042
Autor:
Kinji Kayanuma, Satoshi Itoi, Hiroshi Inada, Hiromi Honma, Ryuichi Katayama, Toshiaki Iwanaga, Makoto Nakada
Publikováno v:
1994 Topical Meeting on Optical Data Storage.
High density land/groove recording, using partial response maximum likelihood (PRML) technology, which corrects errors in the readout signal for exploiting readout channel characteristics, has been developed. By this detection method, both land area
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58b5b8e90cd224c02e9ca3fb05238060
https://doi.org/10.1117/12.190200
https://doi.org/10.1117/12.190200
Autor:
Masatsugu Ogawa, Hiromi Honma, Syuichi Ohkubo, Toshiaki Iwanaga, Tsutomu Ichimura, Masaki Nakano
Publikováno v:
Japanese Journal of Applied Physics. 43:4863
We defined a new measure called the partial response signal-to-noise ratio (PRSNR) to evaluate signal quality in partial response maximum likelihood (PRML) detection, instead of measuring jitter. This PRSNR was adapted to optimize the write condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dce60661695e5d7637ef207359b6cf1b
https://doi.org/10.1143/jjap.43.4863
https://doi.org/10.1143/jjap.43.4863
Publikováno v:
Japanese Journal of Applied Physics. 43:4859
In this paper we describe a derivation of general expression of signal-to-noise ratio (SNR) in a partial-response maximum-likelihood (PRML) detection system. Because of media noise, as well as difference of transfer function between target PR and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf4ed46c1e7d527eaaca87e3e9e6d796
https://doi.org/10.1143/jjap.43.4859
https://doi.org/10.1143/jjap.43.4859
Autor:
Hiromi Honma, Satoshi Segawa, Kinji Kayanuma, Ryuichi Katayama, Hiroshi Inada, Masafumi Nakada, Toshiaki Iwanaga
Publikováno v:
Japanese Journal of Applied Physics. 32:5449
High-density land/groove recording technology for magnetooptical (MO) disks, using a high-speed crosstalk canceller which eliminates crosstalk from adjacent tracks, has been developed. A 0.50 µm/bit linear density with a 0.8 µm track pitch has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9908ec9c64891ed077822f4b5b86bda
https://doi.org/10.1143/jjap.32.5449
https://doi.org/10.1143/jjap.32.5449