Noise removal for degraded images using trimmed filter and neural filters (in Japanese) Noritaka Yamashita, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi IEEJ Transactions on Electronics, Infomation and Systems, vol.125, no.5, pp.774-78, May 2005. [Abstract | pdf]

Multiuser detection with branch-and-bound-based algorithm using user grouping for synchronous CDMA Yusuke Takano, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi 16th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC2005), Sept. 2005. [Abstract | pdf] Design of class E amplifier with any output Q and nonlinear capacitance on MOSFET Hiroo Sekiya, Yoji Arifuku, Hiroyuki Hase, Jianming Lu, and Takashi Yahagi 2005 European Conference on Circuit Theory and Design (ECCTD'05), pp.105-108 , Aug. 2005. [Abstract | pdf] Optimization procedure of class E amplifiers using SPICE Yuichi Tanji, Hiroo Sekiya, and Hideki Asai 2005 European Conference on Circuit Theory and Design (ECCTD2005), vol.3, pp.133-136, Aug. 2005. [Abstract | pdf] Resonant dc/dc converter with class E oscillator Hiroyuki Hase, Hiroo Sekiya, Jianming Lu and Takashi Yahagi 2005 IEEE International Symposium on Circuits and Systems (ISCAS2005), pp.720-723, May 2005. [Abstract | pdf] Quantile based speech/noise-dominant decision for wavelet based speech enhancement Yukihiro Nomura, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi International Workshop on Nonlinear Signal and Image Processing (NSIP2005), pp.513-516, May 2005. [Abstract | pdf] A random-valued impulse noise detector using level detection Noritaka Yamashita, Munenori Ogura, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi 2005 IEEE International Symposium on Circuits and Systems (ISCAS2005), pp.6292-6295, May 2005. [Abstract | pdf] A design method of parallel RLS second-order adaptive volterra filter Xueqin Zhao, Jianming Lu, and Takashi Yahagi 2005 RISP International Workshop on Nonlinear Circuit and Signal Processing (NCSP2005), pp.53-58, Mar. 2005. [Abstract | pdf] A design method of noise canceller using parallel fast RLS second-order AVF Xueqin Zhao, Jianming Lu, and Takashi Yahagi 2005 RISP International Workshop on Nonlinear Circuit and Signal Processing (NCSP2005), pp.81-83, Mar. 2005. [Abstract | pdf] Design and experimental results of resonant dc/dc converter with class E oscillator Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi 2005 RISP International Workshop on Nonlinear Circuit and Signal Processing (NCSP2005), pp.219-222, Mar. 2005. [Abstract | pdf] Incomplete shooting method for finding steady state responses of nonlinear circuits Yuichi Tanji, Hiroo Sekiya, and Hideki Asai 2005 InternationalWorkshop on Nonlinear Circuits and Signal Processing (NCSP2005), pp.495-498, Mar. 2005. [Abstract | pdf] Musical noise reduction by spectral subtraction using morphological filter Yukihiro Nomura, Hideaki Tozawa, Noritaka Yamashita, Jianming Lu, Hiroo Sekiya and Takashi Yahagi 2005 RISP International Workshop on Nonlinear Circuit and Signal Processing (NCSP2005), pp.415-418, Mar. 2005. [Abstract | pdf] New random-valued impulse noise detector using directional windows Noritaka Yamashita, Munenori Ogura, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi 2005 RISP International Workshop on Nonlinear Circuit and Signal Processing (NCSP2005), pp.9-12, Mar. 2005. [Abstract | pdf]

Blind dereverberation using correlation coefficients considering periodicity of voiced speech (in Japanese) Tatsuhiro Iida, Yukihiro Nomura, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi IEICE Technical Committee on Engineering Acoustics, pp.13-17, Dec. 2005. [Abstract | pdf] Speech recognition using noise compensation LPC analysis (in Japanese) Yasuhiro Takahashi, Yukihiro Nomura, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi 48th Proceedings of the Japan Joint Automatic Control Conference, pp.59-60, Nov. 2005. [Abstract | pdf] A impulse noise detector using spatial relations between the color components (in Japanese) Takanori Sato, Yoshinori Ito, Noritaka Yamashita, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi 20th SIP Symposium, Nov. 2005. [Abstract | pdf] Design of generalized class E amplifier with nonlinear shunt capacitance (in Japanese) Yoji Arifuku, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi The 18th Workshop on Circuits and Systems in Karuizawa, pp.299-304, Apr. 2005. [Abstract | pdf] Musical noise reduction using morphology process in spectral subtraction (in Japanese) Hideaki Tozawa, Yukihiro Nomura, Noritaka Yamashita, Jianming Lu, Hiroo Sekiya, and Takashi Yahagi The 18th Workshop on Circuits and Systems in Karuizawa, pp.159-164, Apr. 2005. [Abstract | pdf] Impulse noise detector using mathematical morphology (in Japanese) Yoshinori Ito, Takanori Sato, Noritaka Yamashita, Jianming Lu, and Takashi Yahagi The 18th Workshop on Circuits and Systems in Karuizawa, pp.123-128, Apr. 2005. [Abstract | pdf] Resonant dc/dc converter with class E oscillator (in Japanese) Hiroyuki Hase, Hiroo Sekiya, Jianming Lu and Takashi Yahagi IEICE Technical Committee on Nonlinear Problems, vol.104, no.584, pp.1-6, Jan. 2005. [Abstract | pdf] Design of generalized class E amplifier with nonlinear shunt capacitance (in Japanese) Yoji Arifuku, Hiroyuki Hase, Hiroo Sekiya, Jianming Lu, and Takashi Yahagi IEICE Technical Committee on Nonlinear Problems, no.NLP2004-99, Jan. 2005. [Abstract | pdf]