| Paper Abstract and Keywords |
| Presentation |
2012-12-13 14:00
An Equalizer using Piecewise Linear Function for Holographic Data Storage
Nobuhiro Kinoshita, Tetsuhiko Muroi, Norihiko Ishii, Koji Kamijo, Hiroshi Kikuchi (NHK) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A holographic data storage has advantages of large capacity as well as high data-transfer-rate because it records or reproduces a two-dimensional data array, which is called a data page, at one light irradiation. During readout, the data page is reproduced by irradiation of light and diffraction in a holographic medium, and is captured by an image sensor. When processing symbol extraction after capturing the data page, the size and position of a symbol in the reproduced data page does not always correspond to the size and position of a pixel in the image sensor. The symbol extraction consequently requires an interpolation including the nearest neighbor, bi-linear, and bi-cubic, which have been generally used for the typical graphics processing. Although the performance of the bi-cubic interpolation is high, the implementation of the bi-cubic in a hardware such as FPGA (field programmable gate array) is subject to cause a lack of multiplier in FPGA resource and to limit the number of parallelization because the bi-cubic requires a heavy use of power of variables. In this paper, we propose an interpolator using a piecewise linear function that approximates bi-cubic function, and present the experimental characteristics of a multistage equalizer that involves a FIR (finite impulse response) filter and the piecewise linear function interpolator. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Bi-cubic interpolator / Piecewise linear interpolator / FIR filter / Bit error rate / Multistage equalizer / / / |
| Reference Info. |
ITE Tech. Rep., vol. 36, no. 55, MMS2012-21, pp. 5-8, Dec. 2012. |
| Paper # |
MMS2012-21 |
| Date of Issue |
2012-12-06 (MMS) |
| ISSN |
Print edition: ISSN 1342-6893 |
| Download PDF |
|
| Conference Information |
| Committee |
IEICE-MRIS MMS |
| Conference Date |
2012-12-13 - 2012-12-14 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Ehime Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Signal Processing, etc. |
| Paper Information |
| Registration To |
MMS |
| Conference Code |
2012-12-MR-MMS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
An Equalizer using Piecewise Linear Function for Holographic Data Storage |
| Sub Title (in English) |
|
| Keyword(1) |
Bi-cubic interpolator |
| Keyword(2) |
Piecewise linear interpolator |
| Keyword(3) |
FIR filter |
| Keyword(4) |
Bit error rate |
| Keyword(5) |
Multistage equalizer |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Nobuhiro Kinoshita |
| 1st Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 2nd Author's Name |
Tetsuhiko Muroi |
| 2nd Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 3rd Author's Name |
Norihiko Ishii |
| 3rd Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 4th Author's Name |
Koji Kamijo |
| 4th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 5th Author's Name |
Hiroshi Kikuchi |
| 5th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
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| Speaker |
Author-1 |
| Date Time |
2012-12-13 14:00:00 |
| Presentation Time |
30 minutes |
| Registration for |
MMS |
| Paper # |
MMS2012-21 |
| Volume (vol) |
vol.36 |
| Number (no) |
no.55 |
| Page |
pp.5-8 |
| #Pages |
4 |
| Date of Issue |
2012-12-06 (MMS) |