Masayuki KOIZUMI


A 0.13 µm CMOS Bluetooth EDR Transceiver with High Sensitivity over Wide Temperature Range and Immunity to Process Variation
Kenichi AGAWA Shinichiro ISHIZUKA Hideaki MAJIMA Hiroyuki KOBAYASHI Masayuki KOIZUMI Takeshi NAGANO Makoto ARAI Yutaka SHIMIZU Asuka MAKI Go URAKAWA Tadashi TERADA Nobuyuki ITOH Mototsugu HAMADA Fumie FUJII Tadamasa KATO Sadayuki YOSHITOMI Nobuaki OTSUKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/06/01
Vol. E93-C  No. 6  pp. 803-811
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
CMOS wireless transceiverBluetoothsensitivitytemperature compensationphase noiseVCO pullingMOS switchleakage current
 Summary | Full Text:PDF

A 2.4-GHz Temperature-Compensated CMOS LC-VCO for Low Frequency Drift Low-Power Direct-Modulation GFSK Transmitters
Toru TANZAWA Kenichi AGAWA Hiroyuki SHIBAYAMA Ryota TERAUCHI Katsumi HISANO Hiroki ISHIKURO Shouhei KOUSAI Hiroyuki KOBAYASHI Hideaki MAJIMA Toru TAKAYAMA Masayuki KOIZUMI Fumitoshi HATORI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/04/01
Vol. E88-C  No. 4  pp. 490-495
Type of Manuscript:  Special Section PAPER (Special Section on Low-Power LSI and Low-Power IP)
Category: Analog
Keyword: 
GFSKCMOS LC-VCOBluetoothdirect modulationlow power
 Summary | Full Text:PDF

Selective Multi-Threshold Technique for High-Performance and Low-Standby Applications
Kimiyoshi USAMI Naoyuki KAWABE Masayuki KOIZUMI Katsuhiro SETA Toshiyuki FURUSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12  pp. 2667-2673
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Optimization of Power and Timing
Keyword: 
high performancelow standby leakagemulti-thresholdMTCMOSW-CDMA
 Summary | Full Text:PDF

An Adder-Free Method for a Small Size π/4 Shift QPSK Signal Generator
Akira YASUDA Hiroshi TANIMOTO Chikau TAKAHASHI Akira YAMAGUCHI Masayuki KOIZUMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/02/25
Vol. E80-A  No. 2  pp. 291-295
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques for System-on-Chip Integration)
Category: 
Keyword: 
analog circuits and signal processingQPSK signal generatordelta-sigma modulatorintergrated electronics
 Summary | Full Text:PDF