Chaos-theoretical human factor evaluation apparatus

• US 20040107105A1
• Filed: 10/08/2003
• Published: 06/03/2004
• Est. Priority Date: 04/16/2001
• Status: Abandoned Application

• Current Assignee: Electronic Navigation Research Institute, Kakuichi Shiomi, Mitsubishi Space Software Company Limited (Mitsubishi Electric Corporation)
• Original Assignee: Electronic Navigation Research Institute, Kakuichi Shiomi, Mitsubishi Space Software Company Limited (Mitsubishi Electric Corporation)
• Inventors: Tanaka, Hideyuki, Meguro, Naritomo, Furuse, Nobuhiro, Shomi, Kakuichi
• Application Number:
  US10/474,256
• Publication Number:
  US 20040107105A1
• Time in Patent Office: Days
• US Class Current: 704/270
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/16 Devices for psychotechnics using teaching or educational appliances G09B1/00 - G09B7/00; Testing reaction times ; Devices for evaluating the psychological state
• CPC Class Codes: A61B 5/4064 Evaluating the brain A61B5/031, A61B5/369, A61B5/14553 take precedence
• CPC Class Codes: A61B 5/4803 Speech analysis specially adapted for diagnostic purposes
• CPC Class Codes: G10L 17/26 Recognition of special voice characteristics, e.g. for use in lie detectors; Recognition of animal voices

Abstract

A device for chaological evaluation of human factor comprises a Lyapunov index calculator 23 for calculating a Lyapunov index by analyzing a digitized sound signal, which is changed into a digital data from a sound uttered by a person, by using a chaological method; a Lyapunov index change detector 24 for detecting a change in the Lyapunov index of the uttered sound, which is calculated by using the Lyapunov index calculator 23. A psychosomatic activity is predicted and determined by measuring a level of the load generated in the cerebrum on the basis of the change in the Lyapunov index detected by the Lyapunov index change detector 24.

Claims

1. A device for chaological evaluation of human factor comprising:

a Lyapunov index calculation means for calculating a Lyapunov index by analyzing a digitized sound signal, which is changed into a digital data from a sound uttered by a person, by using a chaological method;

a Lyapunov index change detection means for detecting a change in the Lyapunov index of the uttered sound, which is calculated by using the Lyapunov index calculation means;

wherein a psychosomatic activity is predicted and determined by measuring a level of the load generated in the cerebrum on the basis of the change in the Lyapunov index detected by the Lyapunov index change detection means.

3. A device for chaological evaluation of human factor according to claim 1 or 2, the device further comprising a microphone for inputting the uttered sound of a person as a sound signal and an analogue-digital conversion means for converting the sound signal, which is input into the microphone, into the digital data.

4. A device for chaological evaluation of human factor according to one of claim 1, 2 and 3, the device further comprising a non-uttered sound elimination means for eliminating a sound data other than the uttered sound data of a person, on the basis of the characteristics of the non-uttered sound, from said digital data, and transferring the non-uttered sound eliminated digital data, to said Lyapunov index calculation means.

5. A device for chaological evaluation of human factor according to one of claim 1, 2, 3 and 4, the device further comprising, an uttered sound detection means for extracting and distinguishing the characteristics of an uttered sound of each person to be examined from the digital data from the non-uttered sound eliminated digital data, and transferring the characteristics to said Lyapnov index calculation means, being able to predict and determine the psychosomatic activity of each person from the uttered sounds of a more than one person.

2. A device for chaological evaluation of human factor comprising:

a Lyapunov index calculation means for calculating a Lyapunov index by analyzing a digitized sound signal, which is changed into a digital data from a sound uttered by a person, by using a chaological method;

a Lyapunov index change detection means for detecting a change in the Lyapunov index of the uttered sound, which is calculated by using the Lyapunov index calculation means;

a prediction and determination means for predicting and determining a psychosomatic activity by measuring a level of a load generated in a cerebrum on the basis of the change in the Lyapunov index detected by the Lyapunov index change detection means.