Tsuyoshi Maeda

TL;DR: In this paper, a noise reduction device, including a microphone for detecting noise, a noise controller for reversing the phase of noise detected by the microphone, and a speaker for outputting sound based on information outputted from the noise controller, is arranged at a seat surrounded by a shell portion having a cavity, wherein a speaker is disposed in the cavity of the shell portion.

TL;DR: In this article, a distance from a noise source to control point X is made larger than a distance obtained by subtracting a one-half wavelength from a distance, obtained by adding up the distance from the source to a noise detecting microphone, a distance corresponding to time as a sum of respective delay time of the noise detecting microphones, a noise controller, and a control speaker, where one wavelength is a period corresponding to the upper limited frequency.

TL;DR: In this article, the authors propose an area determining means for comparing respective blocks of a predetermined frame of a video signal composed of frames each divided into the predetermined number of blocks to corresponding blocks of preceding frames immediately before the predetermined frame so as to decide a rectangular area containing an area of different pixel values.

TL;DR: In this paper, a multi-display system using a plurality of projectors is proposed, where image data are divided in accordance with the positional information of a plurality, and segmented image data position information is related to the identification information of each projector and image data to be transmitted is transmitted only to the corresponding projector through a network.