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检索条件"主题词=Modulation Code"
38 条 记 录,以下是11-20 订阅
排序:
Two-Dimensional Constant-Weight Block code in Orthogonal Aperture-Multiplexing for Multilayered Waveguide Holographic Memory
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JAPANESE JOURNAL OF APPLIED PHYSICS 2008年 第11期47卷 8440-8445页
作者: Ueno, Masahiro Endo, Masahiro Kurokawa, Yoshiaki Yoshikawa, Hiroshi Ando, Yasuko Yagi, Shogo Imai, Tadayuki Furuya, Akinori Ohtani, Yoshimitsu NTT Corp NTT Cyber Space Labs Tokyo 1808585 Japan NTT Corp NTT Photon Labs Kanagawa 2430198 Japan NTT Corp NTT Microsyst Integrat Labs Kanagawa 2430198 Japan
For a two-dimensional constant-weight block code, we show that the recording density is proportional to code rate and the second power of the size of the bright point. Second, we show four constant-weight block codes ... 详细信息
来源: 评论
Theoretical method of calculating raw bit-error-rate of 2:N constant-weight block code for multilayered waveguide holographic memory
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JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 2007年 第11期46卷 7347-7355页
作者: Ueno, Masahiro Endo, Masahiro Kurokawa, Yoshiaki Yoshikawa, Hiroshi Ando, Yasuko Yagi, Shogo Imai, Tadayuki Furuya, Akinori Ohtani, Yoshimitsu NTT Corp NTT Cyber Space Labs Tokyo 1808585 Japan NTT Corp NTT Photon Labs Kanagawa 2430198 Japan NTT Corp NTT Microsyst Integrat Labs Atsugi Kanagawa 2430198 Japan
We present an expression for the probability density functions of the ON and OFF pixels of a 2:N constant-weight block code to estimate the raw bit error rate (BER). We also show that they are similar to Gaussian ones... 详细信息
来源: 评论
New efficient run-length limited code for multilevel read-only Optical Disc
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JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 2007年 第6B期46卷 3782-3786页
作者: Hu, Hua Pan, Longfa Xiong, Jianping Ni, Yi Tsinghua Univ Opt Mem Natl Engn Res Ctr Dept Precus Instrument & Mechanol Beijing 100084 Peoples R China
Multilevel recording with run-length limited (RLL) modulation is a novel way to significantly increase the recording density without changing the optical or mechanical units of current optical, disc systems. In this p... 详细信息
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A new two-dimensional pseudo-random modulation code for holographic data storage
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JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 2003年 第2B期42卷 1010-1013页
作者: Hwang, E Roh, J Kim, J Cho, J Park, J Jung, H DAEWOOD Elect Co Ltd Digital Media Lab KyongGi Do 435733 South Korea
A new two-dimensional modulation scheme for holographic data storage, or complementary code-word block modulation (CCBM), and its decoding algorithm have been developed and evaluated. The CCBM constructs a pseudo-rand... 详细信息
来源: 评论
A PRML with modified branches of a dual MTR code for high-density PMR channels
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JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 2005年 第287期287卷 410-415页
作者: Lee, J Lee, J Dongguk Univ Dept Elect Engn Chung Ku Seoul 100715 South Korea
Maximum transition run (MTR, j) code is a modulation code that limits the consecutive transitions. We present a dual MTR code that can be applicable to high-density perpendicular magnetic recording (PMR) channels. The... 详细信息
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Signal processing method of holographic memory using image distortion correction and soft decision Viterbi decoding method
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JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 2005年 第5B期44卷 3508-3512页
作者: Sato, D Nishimoto, K Katayanagi, Y Yamamoto, M Tokyo Univ Sci Grad Sch Ind Sci & Technol Noda Chiba 2788510 Japan
The signal quality of holographic memory is greatly lowered by the pixel mismatch between the charge-coupled device (CCD) and the reproduced image caused by image distortion. This paper discusses an approach to improv... 详细信息
来源: 评论
Signal processing method of holographic memory using image distortion correction and soft decision Viterbi decoding method
Signal processing method of holographic memory using image d...
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14th International Symposium on Optical Memory
作者: Sato, D Nishimoto, K Katayanagi, Y Yamamoto, M Tokyo Univ Sci Grad Sch Ind Sci & Technol Noda Chiba 2788510 Japan
The signal quality of holographic memory is greatly lowered by the pixel mismatch between the charge-coupled device (CCD) and the reproduced image caused by image distortion. This paper discusses an approach to improv... 详细信息
来源: 评论
A PRML with modified branches of a dual MTR code for high-density PMR channels
A PRML with modified branches of a dual MTR code for high-de...
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7th Perpendicular Magnetic Recording Conference (PMRC 2004)
作者: Lee, J Lee, J Dongguk Univ Dept Elect Engn Chung Ku Seoul 100715 South Korea
Maximum transition run (MTR, j) code is a modulation code that limits the consecutive transitions. We present a dual MTR code that can be applicable to high-density perpendicular magnetic recording (PMR) channels. The... 详细信息
来源: 评论
A new efficient error correctible modulation code for holographic data storage
A new efficient error correctible modulation code for hologr...
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International Symposium on Optical Memory (ISOM2001)
作者: Hwang, E Kim, K Kim, J Park, J Jung, H DAEWOO Elect Co Ltd Digital Media Lab KunPo 435733 KyongGi South Korea
A new efficient modulation code for holographic memory. or 9 : 12 pseudo-balanced code(9-12PBC), has been developed and evaluated. The proposed code is partitioned into 16 codeword subsets and is decoded in conjunctio... 详细信息
来源: 评论
Two-dimensional modulation code for multilayered waveguide holographic memory
Two-dimensional modulation code for multilayered waveguide h...
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International Symposium on Optical Memory (ISOM2001)
作者: Endo, M Kurokawa, Y Ueno, M Tanabe, T Yamamoto, M NTT Corp NTT Cyber Space Labs Musashino Tokyo 1808585 Japan
Our two-dimensional modulation code improves the decoding accuracy of images reconstructed from a multilayered waveguide holographic memory that have been translated, rotated, and distorted with respect to the image d... 详细信息
来源: 评论