N
Naofumi Takagi
Researcher at Kyoto University
Publications - 159
Citations - 2832
Naofumi Takagi is an academic researcher from Kyoto University. The author has contributed to research in topics: Rapid single flux quantum & Adder. The author has an hindex of 27, co-authored 154 publications receiving 2562 citations. Previous affiliations of Naofumi Takagi include Nagoya University & Nagoya Institute of Technology.
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Journal ArticleDOI
Redundant CORDIC methods with a constant scale factor for sine and cosine computation
TL;DR: In the proposed methods, one does not need to calculate the scale factor during the computation, and can make a more efficient sine and cosine generator than that based on the previous redundant CORDIC.
Proceedings ArticleDOI
Design of high speed MOS multiplier and divider using redundant binary representation
TL;DR: This work improved the algorithm and the method of implementation, and designed an advanced multiplier and divider for MOS LSI based on a new algorithm that has several excellent features such as high speed addition operations.
Journal ArticleDOI
Nb 9-Layer Fabrication Process for Superconducting Large-Scale SFQ Circuits and Its Process Evaluation
Shuichi Nagasawa,K. Hinode,Tetsuro Satoh,Mutsuo Hidaka,Hiroyuki Akaike,Akira Fujimaki,Nobuyuki Yoshikawa,Kazuyoshi Takagi,Naofumi Takagi +8 more
TL;DR: The results show that considerable progress has been made in reducing the number of defects and improving reliability on a Nb nine-layer fabrication process for large-scale single flux quantum (SFQ) circuits.
Journal ArticleDOI
A high-speed multiplier using a redundant binary adder tree
TL;DR: A 16-bit/spl times/16-bit multiplier for 2 two's-complement binary numbers based on a new algorithm is described, characterized by use of a binary tree of redundant binary adders.
Proceedings ArticleDOI
Function evaluation by table look-up and addition
H. Hassler,Naofumi Takagi +1 more
TL;DR: A general approach decomposing a function into a sum of functions, each with a smaller input site than the original, which can be mapped with essentially the same precision using small ROM tables and adders.