Kazuhiko SEKI


Energy Level Alignment and Band Bending at TPD/Metal Interfaces Studied by Kelvin Probe Method
Naoki HAYASHI Eisuke ITO Hisao ISHII Yukio OUCHI Kazuhiko SEKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/07/25
Vol. E83-C  No. 7  pp. 1009-1011
Type of Manuscript:  Special Section LETTER (Special Issue on Organic Molecular Electronics for the 21st Century)
Category: Electro Luminescence
Keyword: 
band bendingKelvin probe methodvacuum level shiftenergy level alignmentMott-Schottky model
 Summary | Full Text:PDF(214.5KB)

Phase Ambiguity Resolver for PCM Sound Broadcasting Satellite Service with Low Power Consumption Viterbi Decoder Employing SST Scheme
Kazuhiko SEKI Shuji KUBOTA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/09/25
Vol. E78-B  No. 9  pp. 1269-1277
Type of Manuscript:  PAPER
Category: Communication Systems and Transmission Equipment
Keyword: 
phase ambiguityViterbi decoderPCM sound broadcastingcommunication satellites
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A Transmission Power Control Technique on a TDD-CDMA/TDMA System for Wireless Multimedia Networks
Yukitoshi SANADA Kazuhiko SEKI Qiang WANG Shuzo KATO Masao NAKAGAWA Vijay K. BHARGAVA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8  pp. 1095-1104
Type of Manuscript:  Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
transmission power controltime division duplexTDMACDMAmultimedia network
 Summary | Full Text:PDF(842.3KB)

A Channel Equalization Technique on a Time Division Duplex CDMA/TDMA System for Wireless Multimedia Networks
Yukitoshi SANADA Kazuhiko SEKI Qiang WANG Shuzo KATO Masao NAKAGAWA Vijay K. BHARGAVA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8  pp. 1105-1116
Type of Manuscript:  Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
channel equalizertime division duplexTDMACDMAmultimedia network
 Summary | Full Text:PDF(995.1KB)

A Wireless Multimedia Network on a Time Division Duplex CDMA/TDMA
Kazuhiko SEKI Yukitoshi SANADA Qiang WANG Shuzo KATO Vijay K. BHARGAVA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/07/25
Vol. E78-B  No. 7  pp. 1002-1015
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia Computer Networks)
Category: 
Keyword: 
multimedia networktime division duplexCDMATDMA
 Summary | Full Text:PDF(1.1MB)

VLSI Implemented 60 Mb/s QPSK/OQPSK Burst Digital Demodulator for Radio Application
Yoichi MATSUMOTO Kiyoshi KOBAYASHI Tetsu SAKATA Kazuhiko SEKI Shuji KUBOTA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/12/25
Vol. E77-C  No. 12  pp. 1873-1880
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia, Analog and Processing LSIs)
Category: Multimedia System LSIs
Keyword: 
demodulatorcarrier recoverybit-timing recoveryVLSITDMA
 Summary | Full Text:PDF(794.8KB)

A New Fully-Digitalized π/4-Shift QPSK Modulator for Personal Communication Terminals
Tetsu SAKATA Kazuhiko SEKI Shuji KUBOTA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/07/25
Vol. E77-B  No. 7  pp. 921-926
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
digitalized modulatorπ/4-shift QPSKlow power consumption
 Summary | Full Text:PDF(448.5KB)

A Digitalized Quadrature Modulator for Fast Frequency Hopping
Kazuhiko SEKI Tetsu SAKATA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/05/25
Vol. E77-B  No. 5  pp. 656-662
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
TDMA/TDDmodulatorsynthesizerfrequency hopping
 Summary | Full Text:PDF(601.3KB)

A Self Frequency Preset PLL Synthesizer
Kazuhiko SEKI Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/05/25
Vol. E76-B  No. 5  pp. 473-479
Type of Manuscript:  Special Section PAPER (Special Issue on Satellite Communications Networking and Applications)
Category: 
Keyword: 
PLLsynthesizerpresetTDMAfrequency hopping
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High Resolution and Fast Frequency Settling PLL Synthesizer
Kazuhiko SEKI Masahiro MORIKURA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/08/25
Vol. E75-B  No. 8  pp. 739-746
Type of Manuscript:  Special Section PAPER (Special Issue on the 4th Japan-Korea Joint Conference on Communications, Networks, Switching Systems and Satellite Communications (4th JC-CNSS))
Category: 
Keyword: 
PLLsynthesizerDDSTDMAfrequency hopping
 Summary | Full Text:PDF(597.5KB)