Katsuyuki MACHIDA

Logic and Analog Test Schemes for a Single-Chip Pixel-Parallel Fingerprint Identification LSI
Satoshi SHIGEMATSU Hiroki MORIMURA Toshishige SHIMAMURA Takahiro HATANO Namiko IKEDA Yukio OKAZAKI Katsuyuki MACHIDA Mamoru NAKANISHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/10/01
Vol. E90-C  No. 10  pp. 1892-1899
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Technology toward Frontiers of New Market)
Category: Image Sensor/Vision Chip
Keyword: 
test, pixel parallel, sensor, fingerprint identification, single chip, high-functional device, MEMS, 
 Summary | Full Text:PDF(1.2MB)
Fingerprint Image Enhancement and Rotation Schemes for a Single-Chip Fingerprint Sensor and Identifier
Satoshi SHIGEMATSU Koji FUJII Hiroki MORIMURA Takahiro HATANO Mamoru NAKANISHI Namiko IKEDA Toshishige SHIMAMURA Katsuyuki MACHIDA Yukio OKAZAKI Hakaru KYURAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/04/01
Vol. E89-C  No. 4  pp. 540-550
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
fingerprint identification, fingerprint sensor, pixel array, pixel parallel, image processing, image rotation, 
 Summary | Full Text:PDF(2.3MB)
Pixel-Parallel Image-Matching Circuit Schemes for a Single-Chip Fingerprint Sensor and Identifier
Satoshi SHIGEMATSU Hiroki MORIMURA Katsuyuki MACHIDA Yukio OKAZAKI Hakaru KYURAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/05/01
Vol. E88-C  No. 5  pp. 1070-1078
Type of Manuscript:  PAPER
Category: Electronic Circuits
Keyword: 
pixel parallel, image processing, pattern matching, fingerprint, sensor, 
 Summary | Full Text:PDF(1.7MB)
An Adaptive Fingerprint-Sensing Scheme for a User Authentication System with a Fingerprint Sensor LSI
Hiroki MORIMURA Satoshi SHIGEMATSU Toshishige SHIMAMURA Koji FUJII Chikara YAMAGUCHI Hiroki SUTO Yukio OKAZAKI Katsuyuki MACHIDA Hakaru KYURAGI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/05/01
Vol. E87-C  No. 5  pp. 791-800
Type of Manuscript:  PAPER
Category: Integrated Electronics
Keyword: 
fingerprint sensor, adaptive fingerprint-sensing, adjustable A/D conversion, fingerprint image quality evaluation, 
 Summary | Full Text:PDF(2.2MB)
The Influence of Stud Bumping above the MOSFETs on Device Reliability
Nobuhiro SHIMOYAMA Katsuyuki MACHIDA Masakazu SHIMAYA Hideo AKIYA Hakaru KYURAGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/05/25
Vol. E83-A  No. 5  pp. 851-856
Type of Manuscript:  Special Section PAPER (Special Section on Reliability Theory and Its Applications)
Category: 
Keyword: 
stud bump, stress, interface traps, hot carrier, annealing, 
 Summary | Full Text:PDF(933.4KB)