Hideo OHIRA


A Feed-Forward Dynamic Voltage Control Algorithm for Low Power MPEG4 on Multi-Regulated Voltage CPU
Hideo OHIRA Kentaro KAWAKAMI Miwako KANAMORI Yasuhiro MORITA Masayuki MIYAMA Masahiko YOSHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/04/01
Vol. E87-C  No. 4  pp. 457-465
Type of Manuscript:  Special Section PAPER (Special Section on Low-Power System LSI, IP and Related Technologies)
Category: 
Keyword: 
MPEG4 encoderlow powerfeed-forward voltage controlmulti-regulated voltage CPU
 Summary | Full Text:PDF(1.9MB)

A Low Power Media Processor Core Performable CIF30 fr/s MPEG4/H26x Video Codec
Hideo OHIRA Toshihisa KAMEMARU Hirokazu SUZUKI Ken-ichi ASANO Masahiko YOSHIMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/02/01
Vol. E84-C  No. 2  pp. 157-165
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Power High-Performance VLSI Processors and Technologies)
Category: 
Keyword: 
VLSImedia processor corevideo codinglow powerhigh performance
 Summary | Full Text:PDF(521.6KB)

A Single-Chip MPEG-2 422P@ML Video, Audio, and System Encoder with a 162 MHz Media-Processor Core and Dual Motion Estimation Cores
Tetsuya MATSUMURA Satoshi KUMAKI Hiroshi SEGAWA Kazuya ISHIHARA Atsuo HANAMI Yoshinori MATSUURA Stefan SCOTZNIOVSKY Hidehiro TAKATA Akira YAMADA Shu MURAYAMA Tetsuro WADA Hideo OHIRA Toshiaki SHIMADA Ken-ichi ASANO Toyohiko YOSHIDA Masahiko YOSHIMOTO Koji TSUCHIHASHI Yasutaka HORIBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/01/01
Vol. E84-C  No. 1  pp. 108-122
Type of Manuscript:  PAPER
Category: Integrated Electronics
Keyword: 
video encoderMPEG-2media-processoraudio encodersystem encodermotion estimation
 Summary | Full Text:PDF(2.1MB)

A Memory Reduction Approach for MPEG Decoding System
Hideo OHIRA Fumitoshi KARUBE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/08/25
Vol. E82-A  No. 8  pp. 1588-1591
Type of Manuscript:  Special Section LETTER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
frame memory compressionMPEG video decoderDPCMSNR
 Summary | Full Text:PDF(327.9KB)