Keisuke OKADA


A Single Chip H.32X Multimedia Communication Processor with CIF 30 fr/s MPEG-4/H.26X Bi-directional Codec
Noriyuki MINEGISHI Ken-ichi ASANO Keisuke OKADA Masahiko YOSHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/04/01
Vol. E87-C  No. 4  pp. 482-490
Type of Manuscript:  Special Section PAPER (Special Section on Low-Power System LSI, IP and Related Technologies)
Category: 
Keyword: 
heterogeneous multiple processorsmultimedia communicationH.32xMPEG-4H.26x
 Summary | Full Text:PDF(1.8MB)

A Debug System for Heterogeneous Multiple Processors in a Single Chip for Multimedia Communication
Noriyuki MINEGISHI Ken-ichi ASANO Hirokazu SUZUKI Keisuke OKADA Takashi KAN 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/10/01
Vol. E85-D  No. 10  pp. 1571-1578
Type of Manuscript:  Special Section PAPER (Special Issue on Test and Verification of VLSI)
Category: Debugging Multiple Processors
Keyword: 
VLSIdebug methodologyheterogeneous multiple processorIEEE 1149.1reducing debug period
 Summary | Full Text:PDF(1.7MB)

A 350-MS/s 3.3V 8-bit CMOS D/A Converter Using a Delayed Driving Scheme
Hiroyuki KOHNO Yasuyuki NAKAMURA Takahiro MIKI Hiroyuki AMISHIRO Keisuke OKADA Tadashi SUMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/02/25
Vol. E80-A  No. 2  pp. 334-338
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques for System-on-Chip Integration)
Category: 
Keyword: 
D/A convertercurrent sourcecurrent switchdelayed driving scheme
 Summary | Full Text:PDF(454KB)

A High Performance Multiplier and Its Application to an FlR Filter Dedicated to Digital Video Transmission
Keisuke OKADA Shun MORIKAWA Sumitaka TAKEUCHI Isao SHIRAKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Vol. E79-A  No. 12  pp. 2106-2111
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
multiplierconstant coefficientFIR filtervideo transmission
 Summary | Full Text:PDF(529.8KB)

Static Linearity Error Analysis of Subranging A/D Converters
Takashi OKUDA Toshio KUMAMOTO Masao ITO Takahiro MIKI Keisuke OKADA Tadashi SUMI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/02/25
Vol. E79-A  No. 2  pp. 210-216
Type of Manuscript:  Special Section PAPER (Special Section on Analog Technologies in Submicron Era)
Category: 
Keyword: 
subranging A/D convertercoarse conversionfine conversionlinearity error
 Summary | Full Text:PDF(579.6KB)

A 10-b 50 MS/s 500-mW A/D Converter Using a Differential-Voltage Subconverter
Takahiro MIKI Hiroyuki KOUNO Toshio KUMAMOTO Yasushi KINOSHITA Takayuki IGARASHI Keisuke OKADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/05/25
Vol. E77-C  No. 5  pp. 846-852
Type of Manuscript:  Special Section PAPER (Special Section on the 1993 VLSI Circuits Symposium (Joint Issue with the IEEE Journal of Solid-State Circuits, Vol.29, No.4 April 1994))
Category: 
Keyword: 
 Summary | Full Text:PDF(571.9KB)

A 10 bit 50 MS/s CMOS D/A Converter with 2.7 V Power Supply
Takahiro MIKI Yasuyuki NAKAMURA Yoshikazu NISHIKAWA Keisuke OKADA Yasutaka HORIBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/05/25
Vol. E76-C  No. 5  pp. 738-745
Type of Manuscript:  Special Section PAPER (Special Section on Low-Power and Low-Voltage Integrated Circuits)
Category: 
Keyword: 
low supply voltageD/A convertervideo systembattery powered system
 Summary | Full Text:PDF(721.8KB)

Transient Analysis of Switched Current Source
Takahiro MIKI Yasuyuki NAKAMURA Keisuke OKADA Yasutaka HORIBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/03/25
Vol. E75-C  No. 3  pp. 288-296
Type of Manuscript:  Special Section PAPER (Special Issue on Analog LSI and Related Technology)
Category: 
Keyword: 
current sourcecurrent switchswitched current sourcetransient analysisD/A converterdata converter
 Summary | Full Text:PDF(758.8KB)