Patent ID: 8167826
Filing Date: 2012-05-01
Classification: A61M,G10K,H04R,H04S

Abstract:
1. A vibration generating apparatus comprising: a device for generating one of a vibration and a vibration signal, the one of the vibration and the vibration signal containing (i) audible range components that are vibration components in an audible frequency range and (ii) super-high-frequency components within a range exceeding the audible frequency range up to a predetermined maximum frequency, wherein the one of the vibration and the vibration signal has an autocorrelation order represented by at least one of a first property and a second property, wherein the vibration generating apparatus introduces a fundamental brain activation effect into (i) a fundamental brain of a human including a brain stem, a thalamus and a hypothalamus, the brain stem, the thalamus and the hypothalamus being regions performing fundamental functions of the fundamental brain of the human and (ii) a fundamental brain network of neuronal projection from the fundamental brain to various brain regions, the fundamental brain activation effect being introduced by applying one of the vibration and an actual vibration generated from the vibration signal to the human, wherein the first property has a fractal nature, such that (i) a shape of a three-dimensional power spectrum array of time, frequency and power of components of the one of the vibration and the vibration signal exceeding the audible frequency range is a complexity having a self-similarity, (ii) a local exponent of fractal dimension represents the self-similarity of the shape, (iii) the local exponent of fractal dimension is obtained by calculating a fractal dimension of a curved surface of the three-dimensional power spectrum array using a box-counting method and by inverting a sign of an inclination of a straight line that interconnects two mutually adjacent points when logarithms of a necessary minimum number of reference boxes for covering the curved surface are plotted with respect to a logarithm of a size of each one side of the reference boxes, (iv) the local exponent of fractal dimension is not smaller than 2.2 and not greater than 2.8 in a range in which a spectro-temporal index defined by normalizing one side of a reference box of the reference boxes is 2 wherein the second property is defined, such that (i) a degree of one of predictability and irregularity of a time series of the vibration signal changes with time, except for the time series of the vibration signal that is completely predictable and regular and except for the time series of the vibration signal that is completely unpredictable and random, (ii) an information entropy density representing an irregularity of time series data has a value in a range of not smaller than −5 and smaller than zero and (iii) an entropy variation index (EV-index), which is a variance of the information entropy density and represents a degree of time variance, has a value of not smaller than 0.001 for 51.2 seconds.