PURPOSE:To detect keying operation on a support body without covering finger tips by putting detecting devices such as electromygograph sensors on respective fingers, or a wrist and an upper arm part, and determining input information on the basis of variation of a shock, acceleration, a sound, a muscle potential detected by the devices. CONSTITUTION:The shock sensors SN1-SN5 put on the respective fingers detect a shock generated when a support surface is struck by a finger tip. Their signals are sent as light pulses by optical signal transmission parts LD1-LD5 after frequency discrimination and initial amplification by signal amplification parts AM1-AM5, and photodetected by optical reception parts PD1-PD5 and inputted to an analysis part PL, which determines an output code CH. The output code CH determined by the analysis part PL is sent to an information processor HH having a radio reception part RX inside through a weak radio wave transmitter TX. Namely, a character to be inputted is determined according to a finger whose tip strikes a support body, so the operability is good and the portability and instantansity can be improved.
NORMAL WEAR TYPE INPUT SYSTEM, NORMAL WEAR TYPE INTENTION TRANSMISSION SYSTEM, NORMAL WEAR TYPE MUSICAL KEYBOARD SYSTEM, AND NORMAL WEAR TYPE BRAILLE INPUT/ OUTPUT SYSTEM