Naoshi Usuki | Researchain

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international conference on consumer electronics | 2013

Influence of clock structure on EMI level and audio clock jitter during high-speed serial transmission

Tsuyoshi Ikushima; Tsutomu Niiho; Osamu Shibata; Syuji Kato; Naoshi Usuki

In this study, we investigated the influence of the separate-clock structure and embedded-clock structure on the characteristics of electromagnetic interference (EMI) and audio clock jitter during high-speed serial transmission. We found that the EMI peak spectrum of a separate clock can be reduced by 11 dB if its frequency is decreased. The peak spectrum of transmission when using a separate clock is much lower than that of transmission when using an embedded clock, and results in less audio-clock jitter than transmission using an embedded clock.

Archive | 2004

Packet transmitter apparatus

Yoshihiro Morioka; Yasushi Ayaki; Naoshi Usuki

Archive | 2003

Packet transmission/reception device

Yoshihiro Morioka; Yasushi Ayaki; Hiroshi Mitani; Naoshi Usuki

Archive | 2005

Content distribution management device

Ayako Takatsuji; Hiroyuki Iitsuka; Naoshi Usuki

Archive | 2001

Copyright protection system, transmitter, receiver, bridge device, copyright protective method, medium, and program

Masazumi Yamada; Hiroyuki Iitsuka; Naoshi Usuki

Archive | 2004

Apparatus authentication system, server apparatus, and client apparatus

Yuichi Futa; Natsume Matsuzaki; Hiroki Yamauchi; Yuusaku Ohta; Naoshi Usuki; Yasushi Ayaki; Yoshihiro Morioka

Archive | 1999

Digital av data transmitting unit, digital av data receiving unit, digital av data transmitting/receiving unit, and medium

Takuya Nishimura; Hiroyuki Iitsuka; Masazumi Yamada; Shoichi Gotoh; Hideaki Takechi; Naoshi Usuki

Archive | 2004

Data use management system, transmitting apparatus having management function, and data use management method

Yasushi Ayaki; Naoshi Usuki; Yoshihiro Morioka; Natsume Matsuzaki; Yuusaku Ohta

Archive | 1998

Data decoding apparatus

Etsuto Nakatsu; Atsuo Ochi; Hirofumi Nakagaki; Naoshi Usuki

Archive | 1992

Apparatus for converting a field frequency and a scanning line number of a television signal

Hirofumi Nakagaki; Naoshi Usuki

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