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Volume 20 (2023)
- Issue 24 Pages 202304･･･
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Volume 19 (2022)
- Issue 24 Pages 202203･･･
- Issue 23 Pages 202102･･･
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- Issue 21 Pages 202202･･･
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Volume 18 (2021)
- Issue 24 Pages 202104･･･
- Issue 23 Pages 202103･･･
- Issue 22 Pages 202103･･･
- Issue 21 Pages 202103･･･
- Issue 20 Pages 202101･･･
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- Issue 7 Pages 2021005･･･
- Issue 6 Pages 2020044･･･
- Issue 5 Pages 2021000･･･
- Issue 4 Pages 2020042･･･
- Issue 3 Pages 2020037･･･
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- Issue 1 Pages 2020036･･･
Volume 17 (2020)
- Issue 24 Pages 202003･･･
- Issue 23 Pages 202003･･･
- Issue 22 Pages 202003･･･
- Issue 21 Pages 202002･･･
- Issue 20 Pages 202002･･･
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- Issue 12 Pages 201907･･･
- Issue 11 Pages 202000･･･
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- Issue 9 Pages 2020012･･･
- Issue 8 Pages 2019072･･･
- Issue 7 Pages 2020000･･･
- Issue 6 Pages 2019069･･･
- Issue 5 Pages 2019073･･･
- Issue 4 Pages 2019070･･･
- Issue 3 Pages 2019064･･･
- Issue 2 Pages 2019067･･･
- Issue 1 Pages 2019053･･･
Volume 16 (2019)
- Issue 24 Pages 201906･･･
- Issue 23 Pages 201903･･･
- Issue 22 Pages 201904･･･
- Issue 21 Pages 201904･･･
- Issue 20 Pages 201904･･･
- Issue 19 Pages 201903･･･
- Issue 18 Pages 201903･･･
- Issue 17 Pages 201903･･･
- Issue 16 Pages 201903･･･
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- Issue 14 Pages 201901･･･
- Issue 13 Pages 201901･･･
- Issue 12 Pages 201901･･･
- Issue 11 Pages 201901･･･
- Issue 10 Pages 201900･･･
- Issue 9 Pages 2017106･･･
- Issue 8 Pages 2018112･･･
- Issue 7 Pages 2018115･･･
- Issue 6 Pages 2018100･･･
- Issue 5 Pages 2017060･･･
- Issue 4 Pages 2018082･･･
- Issue 3 Pages 2018101･･･
- Issue 2 Pages 2018090･･･
- Issue 1 Pages 2018085･･･
Volume 15 (2018)
- Issue 24 Pages 201808･･･
- Issue 23 Pages 201807･･･
- Issue 22 Pages 201808･･･
- Issue 21 Pages 201807･･･
- Issue 20 Pages 201806･･･
- Issue 19 Pages 201806･･･
- Issue 18 Pages 201805･･･
- Issue 17 Pages 201806･･･
- Issue 16 Pages 201802･･･
- Issue 15 Pages 201804･･･
- Issue 14 Pages 201803･･･
- Issue 13 Pages 201801･･･
- Issue 12 Pages 201801･･･
- Issue 11 Pages 201801･･･
- Issue 10 Pages 201801･･･
- Issue 9 Pages 2017122･･･
- Issue 8 Pages 2017125･･･
- Issue 7 Pages 2018001･･･
- Issue 6 Pages 2017127･･･
- Issue 5 Pages 2017099･･･
- Issue 4 Pages 2017076･･･
- Issue 3 Pages 2017081･･･
- Issue 2 Pages 2017039･･･
- Issue 1 Pages 2017088･･･
Volume 14 (2017)
- Issue 24 Pages 201709･･･
- Issue 23 Pages 201707･･･
- Issue 22 Pages 201708･･･
- Issue 21 Pages 201708･･･
- Issue 20 Pages 201707･･･
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- Issue 18 Pages 201705･･･
- Issue 17 Pages 201607･･･
- Issue 16 Pages 201703･･･
- Issue 15 Pages 201703･･･
- Issue 14 Pages 201703･･･
- Issue 13 Pages 201703･･･
- Issue 12 Pages 201702･･･
- Issue 11 Pages 201612･･･
- Issue 10 Pages 201700･･･
- Issue 9 Pages 2017002･･･
- Issue 8 Pages 2016079･･･
- Issue 7 Pages 2016091･･･
- Issue 6 Pages 2016126･･･
- Issue 5 Pages 2016119･･･
- Issue 4 Pages 2016114･･･
- Issue 3 Pages 2016108･･･
- Issue 2 Pages 2016090･･･
- Issue 1 Pages 2016044･･･
Volume 13 (2016)
- Issue 24 Pages 201606･･･
- Issue 23 Pages 201608･･･
- Issue 22 Pages 201609･･･
- Issue 21 Pages 201603･･･
- Issue 20 Pages 201606･･･
- Issue 19 Pages 201510･･･
- Issue 18 Pages 201508･･･
- Issue 17 Pages 201603･･･
- Issue 16 Pages 201604･･･
- Issue 15 Pages 201604･･･
- Issue 14 Pages 201603･･･
- Issue 13 Pages 201602･･･
- Issue 12 Pages 201509･･･
- Issue 11 Pages 201509･･･
- Issue 10 Pages 201511･･･
- Issue 9 Pages 2016004･･･
- Issue 8 Pages 2015061･･･
- Issue 7 Pages 2015095･･･
- Issue 6 Pages 2015104･･･
- Issue 5 Pages 2015103･･･
- Issue 4 Pages 2015099･･･
- Issue 3 Pages 2015098･･･
- Issue 2 Pages 2015049･･･
- Issue 1 Pages 2015087･･･
Volume 12 (2015)
- Issue 24 Pages 201507･･･
- Issue 23 Pages 201507･･･
- Issue 22 Pages 201506･･･
- Issue 21 Pages 201506･･･
- Issue 20 Pages 201504･･･
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- Issue 13 Pages 201501･･･
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- Issue 10 Pages 201500･･･
- Issue 9 Pages 2015003･･･
- Issue 8 Pages 2015005･･･
- Issue 7 Pages 2014120･･･
- Issue 6 Pages 2014123･･･
- Issue 5 Pages 2014113･･･
- Issue 4 Pages 2014107･･･
- Issue 3 Pages 2014085･･･
- Issue 2 Pages 2014101･･･
- Issue 1 Pages 2014095･･･
Volume 11 (2014)
- Issue 24 Pages 201408･･･
- Issue 23 Pages 201408･･･
- Issue 22 Pages 201408･･･
- Issue 21 Pages 201407･･･
- Issue 20 Pages 201407･･･
- Issue 19 Pages 201403･･･
- Issue 18 Pages 201405･･･
- Issue 17 Pages 201403･･･
- Issue 16 Pages 201405･･･
- Issue 15 Pages 201401･･･
- Issue 14 Pages 201403･･･
- Issue 13 Pages 201402･･･
- Issue 12 Pages 201402･･･
- Issue 11 Pages 201401･･･
- Issue 10 Pages 201401･･･
- Issue 9 Pages 2013093･･･
- Issue 8 Pages 2013099･･･
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- Issue 5 Pages 2012002･･･
- Issue 4 Pages 2013093･･･
- Issue 3 Pages 2013074･･･
- Issue 2 Pages 2012015･･･
- Issue 1 Pages 2013076･･･
Volume 10 (2013)
- Issue 24 Pages 201302･･･
- Issue 23 Pages 201301･･･
- Issue 22 Pages 201304･･･
- Issue 21 Pages 201303･･･
- Issue 20 Pages 201304･･･
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- Issue 1 Pages 2012064･･･
Volume 9 (2012)
- Issue 24 Pages 1813-
- Issue 23 Pages 1775-
- Issue 22 Pages 1714-
- Issue 21 Pages 1624-
- Issue 20 Pages 1556-
- Issue 19 Pages 1504-
- Issue 18 Pages 1448-
- Issue 17 Pages 1370-
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- Issue 14 Pages 1141-
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- Issue 11 Pages 932-
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- Issue 7 Pages 609-
- Issue 6 Pages 422-
- Issue 5 Pages 326-
- Issue 4 Pages 213-
- Issue 3 Pages 122-
- Issue 2 Pages 34-
- Issue 1 Pages 1-
Volume 8 (2011)
- Issue 24 Pages 2025-
- Issue 23 Pages 1933-
- Issue 22 Pages 1856-
- Issue 21 Pages 1757-
- Issue 20 Pages 1642-
- Issue 19 Pages 1542-
- Issue 18 Pages 1461-
- Issue 17 Pages 1374-
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- Issue 15 Pages 1204-
- Issue 14 Pages 1109-
- Issue 13 Pages 986-
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- Issue 11 Pages 773-
- Issue 10 Pages 699-
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- Issue 8 Pages 530-
- Issue 7 Pages 404-
- Issue 6 Pages 311-
- Issue 5 Pages 259-
- Issue 4 Pages 195-
- Issue 3 Pages 114-
- Issue 2 Pages 50-
- Issue 1 Pages 1-
Volume 7 (2010)
- Issue 24 Pages 1766-
- Issue 23 Pages 1686-
- Issue 22 Pages 1659-
- Issue 21 Pages 1602-
- Issue 20 Pages 1509-
- Issue 19 Pages 1416-
- Issue 18 Pages 1329-
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- Issue 15 Pages 1099-
- Issue 14 Pages 969-
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- Issue 12 Pages 827-
- Issue 11 Pages 745-
- Issue 10 Pages 666-
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- Issue 8 Pages 513-
- Issue 7 Pages 473-
- Issue 6 Pages 383-
- Issue 5 Pages 326-
- Issue 4 Pages 228-
- Issue 3 Pages 112-
- Issue 2 Pages 47-
- Issue 1 Pages 1-
Volume 6 (2009)
- Issue 24 Pages 1702-
- Issue 23 Pages 1621-
- Issue 22 Pages 1535-
- Issue 21 Pages 1490-
- Issue 20 Pages 1432-
- Issue 19 Pages 1374-
- Issue 18 Pages 1304-
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- Issue 16 Pages 1131-
- Issue 15 Pages 1071-
- Issue 14 Pages 979-
- Issue 13 Pages 889-
- Issue 12 Pages 800-
- Issue 11 Pages 638-
- Issue 10 Pages 581-
- Issue 9 Pages 529-
- Issue 8 Pages 437-
- Issue 7 Pages 361-
- Issue 6 Pages 270-
- Issue 5 Pages 205-
- Issue 4 Pages 180-
- Issue 3 Pages 135-
- Issue 2 Pages 58-
- Issue 1 Pages 1-
Volume 5 (2008)
- Issue 24 Pages 1036-
- Issue 23 Pages 995-
- Issue 22 Pages 921-
- Issue 21 Pages 889-
- Issue 20 Pages 846-
- Issue 19 Pages 782-
- Issue 18 Pages 698-
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- Issue 14 Pages 490-
- Issue 13 Pages 464-
- Issue 12 Pages 437-
- Issue 11 Pages 395-
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- Issue 8 Pages 235-
- Issue 7 Pages 211-
- Issue 6 Pages 181-
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- Issue 4 Pages 125-
- Issue 3 Pages 87-
- Issue 2 Pages 41-
- Issue 1 Pages 1-
Volume 4 (2007)
- Issue 24 Pages 762-
- Issue 23 Pages 712-
- Issue 22 Pages 690-
- Issue 21 Pages 638-
- Issue 20 Pages 612-
- Issue 19 Pages 582-
- Issue 18 Pages 562-
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- Issue 14 Pages 430-
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- Issue 12 Pages 369-
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- Issue 7 Pages 199-
- Issue 6 Pages 185-
- Issue 5 Pages 147-
- Issue 4 Pages 127-
- Issue 3 Pages 77-
- Issue 2 Pages 21-
- Issue 1 Pages 1-
Volume 3 (2006)
- Issue 24 Pages 522-
- Issue 23 Pages 493-
- Issue 22 Pages 464-
- Issue 21 Pages 453-
- Issue 20 Pages 429-
- Issue 19 Pages 417-
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- Issue 17 Pages 390-
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- Issue 3 Pages 34-
- Issue 2 Pages 11-
- Issue 1 Pages 1-
Volume 2 (2005)
- Issue 24 Pages 589-
- Issue 23 Pages 572-
- Issue 22 Pages 548-
- Issue 21 Pages 530-
- Issue 20 Pages 512-
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- Issue 18 Pages 471-
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- Issue 6 Pages 176-
- Issue 5 Pages 133-
- Issue 4 Pages 103-
- Issue 3 Pages 64-
- Issue 2 Pages 43-
- Issue 1 Pages 1-
Volume 1 (2004)
- Issue 18 Pages 551-
- Issue 17 Pages 523-
- Issue 16 Pages 483-
- Issue 15 Pages 447-
- Issue 14 Pages 410-
- Issue 13 Pages 358-
- Issue 12 Pages 322-
- Issue 11 Pages 287-
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- Issue 4 Pages 73-
- Issue 3 Pages 51-
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Volume 4, Issue 12
Displaying 1-7 of 7 articles from this issue
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LETTER
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2007 Volume 4 Issue 12 Pages iv-vi
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSDownload PDF (71K) -
Motoharu Matsuura, Yuki Kishikawa, Naoto Kishi, Tetsuya Miki2007 Volume 4 Issue 12 Pages 369-374
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSWe analyze signal waveform generated by a semiconductor optical amplifier (SOA)-based switch with a delayed-interferometric (DI) configuration by controlling an assist light under gain or transparent wavelength. To take advantage of the rectangular-shape waveform generated by the switch, we investigate and optimize the waveform quality by means of both Q-factor and concordance rate to rectangular-shape of the converted waveform.View full abstractDownload PDF (465K) -
Koji Ieda, Kenji Kurokawa, Katsusuke Tajima, Kazuhide Nakajima2007 Volume 4 Issue 12 Pages 375-379
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSWe achieved high-speed wavelength division multiplexing (WDM) transmission in the visible to infrared region over a 1km photonic crystal fiber (PCF). We realized ultra-wide and high-speed WDM transmission using six wavelengths in the 658 to 1550nm wavelength range, which corresponds to a frequency bandwidth of 263THz. We demonstrated WDM transmission of 1Gbit/s at 658nm and 10Gbit/s at 780nm and four infrared wavelengths. Our experimental results show that low loss PCF is very attractive for use in future high capacity WDM systems with an ultra wide bandwidth.View full abstractDownload PDF (847K) -
Ivan Ku, Sze Wei Lee, Teong Chee Chuah2007 Volume 4 Issue 12 Pages 380-386
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSA robust front-end pre-filter incorporating non-quadratic signal processing techniques is proposed. We will demonstrate the effectiveness of this filter in suppressing impulsive noises in a coded direct sequence code-division multiple access (DS-CDMA)communication system. Based on M-Estimation approach, the pre-filter works by minimizing an appropriate penalty function in an iterative fashion with minimal increase in computational complexity of the system. With the use of this pre-filter in the system, performance enhancement in excess of 6dB in non-Gaussian impulsive channels is demonstrated while maintaining comparable performance in Gaussian channel.View full abstractDownload PDF (437K) -
Satoru Hosono, Hideaki Wakabayashi, Nobuyuki Masuda, Tomoyoshi Ito2007 Volume 4 Issue 12 Pages 387-392
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSWe have developed a special-purpose computer for analyzing X-ray scattering of models of macromolecules, named XSAM-2 (solution X-ray Scattering Analysis of Macromolecules). XSAM-2 contains 64 circuits operating in parallel for calculating X-ray scattering intensities using the pipeline method. XSAM-2 calculates 122 times faster than a personal computer with a Pentium 4 processor.View full abstractDownload PDF (293K) -
Youngran Park, Hyunho Kang, Kazuhiko Yamaguchi, Kingo Kobayashi2007 Volume 4 Issue 12 Pages 393-399
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSWe propose a novel steganographic system that is able to provide a high quality stego image in spite of the high capacity of the concealed information. The number of insertion bits in a pixel is different according to each pixel's characteristics. In addition to that, our system is able to verify whether if the secret information was sent from the sender correctly or if an attacker forged the secret message. We use two frequency coefficients in DCT domain to generate the symbol code to check the integrity of secret information.View full abstractDownload PDF (625K) -
Hamid Movahedian, Behnam Sedighi, Mehrdad Sharif Bakhtiar2007 Volume 4 Issue 12 Pages 400-405
Published: 2007
Released on J-STAGE: June 25, 2007
JOURNAL FREE ACCESSThis paper investigates the performance of a MOS track-and-hold circuit as the front end of a wide input range and high-speed single-sided ADC. In order to reduce charge injection and clock feedthrough errors, a new technique for employing a dummy transistor in the bootstrapped switch of the track and hold circuit is introduced. Performance of the proposed circuit for the two cases of constant and non-linear hold capacitor is studied. It is also shown that how and when dummy switch and bulk switching method can improve the accuracy of the T/H.View full abstractDownload PDF (274K)
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