Shigeki OBOTE


A Cross Polarization Suppressed Sequential Array with L-Probe Fed Rectangular Microstrip Antennas
Kazuki IKEDA Keigo SATO Ken-ichi KAGOSHIMA Shigeki OBOTE Atsushi TOMIKI Tomoaki TODA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/09/01
Vol. E94-B  No. 9  pp. 2653-2655
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
cross polarization suppressionsequential arrayrectangular patch
 Summary | Full Text:PDF

Reading Technique of 2.45 GHz Band Small RFID Tags with an Adapter
Peng WANG Hiroyuki KOGA Sho YAMADA Shigeki OBOTE Kenichi KAGOSHIMA Kenji ARAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11  pp. 2851-2857
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Systems
Keyword: 
2.45 GHzsmall RFID tagmeander-lineinductive coupling
 Summary | Full Text:PDF

A Computation Reduced MMSE Adaptive Array Antenna Using Space-Temporal Simultaneous Processing Equalizer
Yoshihiro ICHIKAWA Koji TOMITSUKA Shigeki OBOTE Kenichi KAGOSHIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2622-2629
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
adaptive array antennaMMSEcomputational complexityspace-temporal simultaneous processing equalizer
 Summary | Full Text:PDF

A Study on Performance Evaluation and Improvement of PSK Coherent Detection with Adaptive BPF Utilizing Allpass Filter
Shigeki OBOTE Daisuke NAGAI Kenichi KAGOSHIMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/11/01
Vol. E85-A  No. 11  pp. 2538-2543
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
PSKcoherent detectioncarrier recoveryadaptive BPF
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The Automatic Counting of Chlorella Using Image Processing and Neural Network
Yasuaki SUMI Makoto OTA Noboru YABUKI Shigeki OBOTE Yoshitaka MATSUDA Yutaka FUKUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/03/01
Vol. E84-A  No. 3  pp. 794-796
Type of Manuscript:  Special Section LETTER (Special Section of Selected Papers from the 13th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
chlorellacountingpattern recognitionneural networkback propagation
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Robust DSP Type Squaring Loop with Adaptive Notch Filter Type Frequency Estimator and Adaptive BPF
Shigeki OBOTE Yasuaki SUMI Yoshio ITOH Yutaka FUKUI Masaki KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/02/01
Vol. E84-A  No. 2  pp. 441-448
Type of Manuscript:  Special Section PAPER (Special Section on Noise Cancellation and Reduction Techniques)
Category: Narrow-Band Interference Cancellation
Keyword: 
squaring loopcoherent detectionBPSKadaptive notch filterfrequency estimator
 Summary | Full Text:PDF

PLL Frequency Synthesizer with Binary Phase Comparison
Shigeki OBOTE Yasuaki SUMI Naoki KITAI Yutaka FUKUI Yoshio ITOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/03/25
Vol. E83-A  No. 3  pp. 427-434
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 12th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
PLL frequency synthesizerbinary phase comparison
 Summary | Full Text:PDF

Prescaler PLL Frequency Synthesizer with Multi-Programmable Divider
Yasuaki SUMI Shigeki OBOTE Naoki KITAI Hidekazu ISHII Ryousuke FURUHASHI Yutaka FUKUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/03/25
Vol. E83-A  No. 3  pp. 421-426
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 12th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
PLL frequency synthesizerprescalermulti-programmable divider(N+1/2) programmable divider
 Summary | Full Text:PDF

PLL Frequency Synthesizer with Multi-Phase Detector
Yasuaki SUMI Kouichi SYOUBU Shigeki OBOTE Yutaka FUKUI Yoshio ITOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/03/25
Vol. E82-A  No. 3  pp. 431-435
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 11th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
PLL frequency synthesizermulti-phase detectorspeedup of lock up time
 Summary | Full Text:PDF

Speedup of Frequency Switching Time in PLL Frequency Synthesizers Using a Target Frequency Detector
Shigeki OBOTE Yasuaki SUMI Naoki KITAI Kouichi SYOUBU Yutaka FUKUI Yoshio ITOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/03/25
Vol. E82-A  No. 3  pp. 436-441
Type of Manuscript:  Special Section PAPER (Special Section on Selected Papers from the 11th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
PLL frequency synthesizertarget frequency detectorfast frequency switching
 Summary | Full Text:PDF

PLL Frequency Synthesizer for Low Power Consumption
Yasuaki SUMI Kouichi SYOUBU Kazutoshi TSUDA Shigeki OBOTE Yutaka FUKUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/03/25
Vol. E80-A  No. 3  pp. 461-465
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 9th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
low power consumptionPLL frequency synthesizerfrequency extenderprogrammable divideroperating frequencyprescaler
 Summary | Full Text:PDF