Abstract: {Aim} To provide the method and apparatus to restore a person's ability to recognize minute differences in words and sounds and to accurately mimic the words one hears: an ability which people possess in infancy and childhood, but usually lose as they grow up. {Method} In order to achieve the above aim, this invention describes a method to recognize minute differences in words and sounds by using apparatus which create a difference between the bone-conducted sound volume of the right and left ears, while keeping the volume of the air-conducted sound of the ear, with the higher bone-conducted sound volume, the same or louder than the other ear.

Abstract: In fluorescent endoscopic examinations, excitation light and light adjusted by an adjuster filter are alternately projected to an object under observation, the fluorescence light is received by one channel out of three channels by disposing barrier filters before a black-and-white CCD, or received without any filter by the channel of a color CCD which does not react with excitation light but with the fluorescent light, the light adjusted by an adjuster filter is received by the other two channels to capture the background image, the signals sent through the three channels are combined, and the fluorescent image is superimposed on the background image on a monitor. Thus, a sharp fluorescent image and bright field of view are formed and viewed on the same screen simultaneously, and the portions where fluorescence is emitted can be easily specified in the background.

Abstract: Form-correcting shoes designed so that when a player wears these shoes he automatically gets the condition that all skeletal muscles are in equally alert, the backbone is fixed to the pelvis, and the upper arms are fixed to the shoulders, thereby helping him play easily in the right forms the sports using rackets or bats or clubs, such as tennis, badminton, baseball and golf, and other kinds of sports.

Abstract: Form-correcting chest belt, forcing both arms, shoulders and chests to move in co-relation with one another, is used together with form-correcting waist belt, forcing the vertebral column to become stiff and the upper and lower parts of the body to move in co-relation with each other, and together with form-correcting shoes or foot angle supporter, which semi-force body weight center to be located in the middle of the foot length, thereby helping players play easily in the right forms the sports using rackets or bats or clubs, such as tennis, badminton, baseball and golf,