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1

Active noise control system using the simultaneous equation method without the estimation of error path filter coefficients

Kensaku Fujii, Mitsuji Muneyasu, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

2002

Language:

english

File:

PDF, 119 KB

english, 2002

2

Double-talk detection method with detecting echo path fluctuation

Kensaku Fujii, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1996

Language:

english

File:

PDF, 877 KB

english, 1996

3

A method for continuing adjustment of adaptive filter coefficients in voiceless noise terms available for acoustic echo canceller systems

Kensaku Fujii, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1996

Language:

english

File:

PDF, 714 KB

english, 1996

4

[IEEE 2008 13th International Symposium on Electrets ISE 13 - Tokyo, Japan (2008.09.15-2008.09.17)] 2008 13th International Symposium on Electrets - Sound system with wideband piezoelectric rectangular loudspeakers using a tuck shaped PVDF bimorph

Ohga, Juro, Takei, Toshitaka, Moriyama, Nobuhiro

Year:

2008

Language:

english

File:

PDF, 1.50 MB

english, 2008

5

Adaptive microphone‐array system for noise reduction

Kaneda, Yutaka, Ohga, Juro

Journal:

The Journal of the Acoustical Society of America

Year:

1984

Language:

english

File:

PDF, 149 KB

english, 1984

6

Loudspeaker systems for low-frequency radiation driven by rotational piezoelectric ultrasonic motors

Nagaoka, Daichi, Ohga, Juro, Negishi, Hirokazu, Oohira, Ikuo, Maeda, Kazuaki, Oishi, Kunio

Journal:

Acoustical Science and Technology

Year:

2015

Language:

english

File:

PDF, 1.22 MB

english, 2015

7

A voice switch control method for efficient blocking prevention

Kensaku Fujii, Jun'ichi Sakaguchi, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1998

Language:

english

File:

PDF, 209 KB

english, 1998

8

Convergence time reduction provided by a block length control method applied to the “summational” NLMS algorithm

Kensaku Fujii, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1999

Language:

english

File:

PDF, 2.93 MB

english, 1999

9

A method of maintaining the estimation error at a desired level for acoustic echo canceler systems

Kensaku Fujii, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

2001

Language:

english

File:

PDF, 249 KB

english, 2001

10

“Individually normalized” least mean square algorithm suitable for fixed-point processing and its application to active noise control

Kensaku Fujii, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1996

Language:

english

File:

PDF, 791 KB

english, 1996

11

“Polarized-x” algorithm for use in fixed-point processing

Kensaku Fujii, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1996

Language:

english

File:

PDF, 691 KB

english, 1996

12

Method to update the coefficients of the secondary path filter under active noise control

Kensaku Fujii, Juro Ohga

Journal:

Signal Processing

Year:

2001

Language:

english

File:

PDF, 155 KB

english, 2001

13

Influence of time constant on coefficients estimation error derived from a lowpass filter expression for learning identification algorithm

Kensaku Fujii, Yoshihiro Sakai, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1991

Language:

english

File:

PDF, 901 KB

english, 1991

14

Acoustic parameter estimation for design of piezoelectric telephones by the nonlinear optimization method

Keizo Hoshijima, Osamu Simada, Masachika Kitao, Yasuo Nomura, Yuka Ohta, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1992

Language:

english

File:

PDF, 811 KB

english, 1992

15

An estimation of acoustic parameters of piezoelectric telephone by Monte Carlo method

Yoshinobu Kajikawa, Yasuo Nomura, Juro Ohga

Journal:

Electronics and Communications in Japan (Part III: Fundamental Electronic Science))

Year:

1995

Language:

english

File:

PDF, 1.01 MB

english, 1995

16

Rabbit intestine contains a protein that inhibits the dissociation of GDP from and the subsequent binding of GTP to rhoB p20, a ras p21-like GTP-binding protein

Nobuyuki Ohga, Akira Kikuchi, Takashi Ueda, Juro Yamamoto, Yoshimi Takai

Journal:

Biochemical and Biophysical Research Communications

Year:

1989

Language:

english

File:

PDF, 780 KB

english, 1989

17

GTPase activating proteins for the smg-21 GTP-binding protein having the same effector domain as the ras proteins in human platelets

Takashi Ueda, Akira Kikuchi, Nobuyuki Ohga, Juro Yamamoto, Yoshimi Takai

Journal:

Biochemical and Biophysical Research Communications

Year:

1989

Language:

english

File:

PDF, 719 KB

english, 1989

18

A GTPase-activating protein for rhoB p20, a ras p21-like GTP-binding protein — partial purification, characterization and subcellular distribution in rat brain

Yamamoto, Juro, Kikuchi, Akira, Ueda, Takashi, Ohga, Nobuyuki, Takai, Yoshimi

Journal:

Molecular Brain Research

Year:

1990

Language:

english

File:

PDF, 629 KB

english, 1990

19

Wideband piezoelectric rectangular loudspeakers using a tuck shaped PVDF bimorph

Ohga, Juro, Takei, Toshitaka, Moriyama, Nobuhiro

Journal:

IEEE Transactions on Dielectrics and Electrical Insulation

Year:

2010

Language:

english

File:

PDF, 1.11 MB

english, 2010

20

Proceedings of Meetings on Acoustics [ASA ICA 2013 Montreal - Montreal, Canada (2 - 7 June 2013)] - Loudspeaker for low frequency signal driven by four piezoelectric ultrasonic motors

Ohga, Juro, Negishi, Hirokazu, OOHIRA, Ikuo, Saito, Hiroya, Oishi, Kunio, Maeda, Kazuaki

Year:

2013

Language:

english

File:

PDF, 534 KB

english, 2013

21

Granule microphone using selenium–tellurium alloy

Ohga, Juro, Shirai, Seiiti, Ochi, Osamu, Takagi, Toru, Yoshikawa, Akira, Nagai, Haruo, Mizushima, Yoshihiko

Journal:

The Journal of the Acoustical Society of America

Year:

1978

Language:

english

File:

PDF, 766 KB

english, 1978

22

[IEEE 2013 IEEE 2nd Global Conference on Consumer Electronics (GCCE) - Tokyo, Japan (2013.10.1-2013.10.4)] 2013 IEEE 2nd Global Conference on Consumer Electronics (GCCE) - New direct-radiator loudspeaker driven by piezoelectric ultrasonic motors

Saito, Hiroya, Oishi, Kunio, Ohga, Juro, Negishi, Hirokazu, Oohira, Ikuo, Maeda, Kazuaki

Year:

2013

Language:

english

File:

PDF, 1.80 MB

english, 2013

23

Bendable Electro-Acoustic Transducer Fabricated Utilizing Frequency Dispersion of Elastic Modulus

Miyoshi, Tetsu, Ohga, Juro

Journal:

Japanese Journal of Applied Physics

Year:

2013

Language:

english

File:

PDF, 156 KB

english, 2013

24

Research and Development of Audio Technology for Telephony in NTT

Journal:

IEICE ESS Fundamentals Review

Year:

2011

File:

PDF, 6.68 MB

2011

25

Research and Development of Audio Technology for Telephony in NTT

Journal:

IEICE ESS Fundamentals Review

Year:

2012

File:

PDF, 5.51 MB

2012

26

A Person with Hobby

Journal:

IEICE ESS Fundamentals Review

Year:

2008

File:

PDF, 1.60 MB

2008

27

Variety of Electroacoustical Devices by Piezoelectric Materials

Journal:

IEICE ESS Fundamentals Review

Year:

2008

File:

PDF, 5.10 MB

2008

28

Proceedings of Meetings on Acoustics [ASA ICA 2013 Montreal - Montreal, Canada (2 - 7 June 2013)] - A new loudspeaker for low frequency radiation by linear motion type piezoelectric ultrasonic actuators

Saito, Hiroya, NEGISHI, Hirokazu, OHGA, Juro, OOHIRA, Ikuo, OISHI, Kunio, Maeda, Kazuaki

Year:

2013

File:

PDF, 3.57 MB

2013

29

Proceedings of Meetings on Acoustics [ASA ICA 2013 Montreal - Montreal, Canada (2 - 7 June 2013)] - A new loudspeaker for low frequency radiation by linear motion type piezoelectric ultrasonic actuators

Saito, Hiroya, NEGISHI, Hirokazu, OHGA, Juro, OOHIRA, Ikuo, OISHI, Kunio, Maeda, Kazuaki

Year:

2013

Language:

english

File:

PDF, 3.57 MB

english, 2013

30

A flat piezoelectric polymer film loudspeaker as a multi-resonance system.

Journal:

THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN (E)

Year:

1983

Language:

english

File:

PDF, 959 KB

english, 1983

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