초록 ▼

As a speaker produces a sound, the positions and angles of specular reflection plates put on the skin of the vocal organs and periphery thereof change. Resultantly, a ray of light applied from a light source section is reflected by the specular reflection plates uniquely in accordance with a law of

As a speaker produces a sound, the positions and angles of specular reflection plates put on the skin of the vocal organs and periphery thereof change. Resultantly, a ray of light applied from a light source section is reflected by the specular reflection plates uniquely in accordance with a law of reflection and the direction of the ray of light changes. Specularly reflected light spots moving on the face of a position detection sensor are detected by the position detection sensor, thereby detecting the positions of the specularly reflected light spots corresponding to the shape of the vocal organs and periphery thereof produced as the speaker produces the sound. Time characteristic and position change features are extracted based on the specularly reflected light spot positions detected. The features are compared with standard features patterns, thereby classifying input voice.

대표청구항 ▼

[ What is claimed is:] [1.]1. A voice detection apparatus, comprising:a light source unit which emits a light;at least one reflection plate located on facial parts of a person,the light is directed in the direction of the at least one reflection plate;a position detection section which receives the

[ What is claimed is:] [1.]1. A voice detection apparatus, comprising:a light source unit which emits a light;at least one reflection plate located on facial parts of a person,the light is directed in the direction of the at least one reflection plate;a position detection section which receives the light reflected from the at least one reflection plate; anda voice detection section for determining the voice of a person based in part by extracting one or more features relating to the person uttering a vocal sound corresponding to positional information provided by the position detection section.