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Dive into the research topics where Kenta Yasufuku is active.

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Featured researches published by Kenta Yasufuku.


asian solid state circuits conference | 2014

A UHS-II SD card controller with 240MB/s write throughput and 260MB/s read throughput

Kenta Yasufuku; Naoto Oshiyama; Toshitada Saito; Yukimasa Miyamoto; Yutaka Nakamura; Ryota Terauchi; Atsushi Kondo; Takuma Aoyama; Masafumi Takahashi; Yukihito Oowaki; Ryoichi Bandai

This paper presents a UHS-II SD card controller with 240MB/s write and 260MB/s read throughput. Two opposite direction IO lanes for down- and up-streams are quickly switched as single direction for double data rate, without adding extra IO pins. The proposed clock data recovery (CDR) logic can detect symbols within 20ns and minimizes this lane switching overhead. The developed SLVS-type driver that can reduce the common to differential return loss by 15dB is also introduced to improve the noise tolerance.


Archive | 2013

Virtual address cache memory, processor and multiprocessor

Kenta Yasufuku; Shigeaki Iwasa; Yasuhiko Kurosawa; Hiroo Hayashi; Seiji Maeda; Mitsuo Saito


Archive | 2009

Memory controller, memory system, and access control method of flash memory

Kenta Yasufuku


Archive | 2009

MULTI-PROCESSOR SYSTEM AND METHOD OF CONTROLLING THE MULTI-PROCESSOR SYSTEM

Kenta Yasufuku


Archive | 2011

Information processing device, memory management device and memory management method

Kenta Yasufuku; Masaki Miyagawa; Goh Uemura; Tsutomu Owa; Tsutomu Unesaki; Atsushi Kunimatsu


Archive | 2007

DATA PROCESSING SYSTEM AND METHOD FOR PROCESSING DATA

Kenta Yasufuku


Archive | 2010

Information processor, memory management device, memory management method and program

Tsutomu Azezaki; Takeshi Kamimura; Atsushi Kunimatsu; Masanori Miyagawa; Tsutomu Owa; Kenta Yasufuku; 剛 上村; 敦 国松; 勤 大輪; 健太 安福; 雅紀 宮川; 勉 畦崎


Archive | 2008

Microprocessor inhibiting instruction storage in cache and not decoding based on pre-analysis information to reduce power consumption

Kenta Yasufuku


Archive | 2013

SEMICONDUCTOR STORAGE DEVICE AND MEMORY CONTROLLER

Kenichiro Yoshii; Naoaki Kokubun; Naoto Oshiyama; Ryo Yamaki; Ikuo Magaki; Kenta Yasufuku; Akira Yamaga


Archive | 2011

Variable write back timing to nonvolatile semiconductor memory

Kenta Yasufuku; Masaki Miyagawa; Goh Uemura; Tsutomu Owa; Tsutomu Unesaki; Atsushi Kunimatsu

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