K
Kensaku Fujii
Researcher at University of Hyogo
Publications - 181
Citations - 868
Kensaku Fujii is an academic researcher from University of Hyogo. The author has contributed to research in topics: Adaptive filter & Noise. The author has an hindex of 15, co-authored 181 publications receiving 857 citations. Previous affiliations of Kensaku Fujii include Fujitsu & Hyogo University.
Papers
More filters
Patent
Active noise control apparatus
Kensaku Fujii,Juro Ohga +1 more
TL;DR: In this paper, an overall system filter for simulating a characteristic of overall system leading to an error detecting microphone from a noise detecting microphone is provided for the first and the second overall system filters.
Patent
Adaptive digital filter including low-pass filter
TL;DR: In this article, an adaptive digital filter for estimating a response characteristic of a signal path by monitoring a sampled output signal of the signal path, estimating a predetermined number of filter coefficients, and generating an estimated output signal using a plurality of successive sampled input signals of signal path and the estimated filter coefficients.
Proceedings ArticleDOI
A new noise reduction system based on ALE and noise reconstruction filter
TL;DR: A noise reduction technique is proposed to reduce wideband and sinusoidal noise in noisy speech and the noise reduction system with a feedback path is also proposed for more improvement of the quality of the enhanced speech.
Patent
Hands-free telephone set
TL;DR: In this article, the authors proposed a method to suppress an acoustic echo and a side-tone echo with few error by providing automatic gain controllers and/or limiters in the hands-free telephone.
Patent
Electronic telephone terminal having noise suppression function
TL;DR: In this article, an electronic telephone terminal having a transmitter and a receiver, both having approximately linear acoustic-to-electric transduction characteristics, and having a surrounding noise suppression function, and including a variable attenuator (12) for controlling a gain of a transmission system, was considered.