A data input method and device is provided that allows a user to input data
to a computer by means of bending his/her five band digits in a specified
manner representing a keyboard character intended for input to the
computer system. The bending of the user's five hand digits will then
cause wrist muscle movements, which can be then sensed by a piezoelectric
element in the data input device. In response, the piezoelectric element
generates a corresponding electrical signal, which is then converted into
binary form and transmitted via cable or wireless link to the computer
system. Inside the computer system, the CPU searches through a predefined
character-mapping table to find the character corresponding to the
received signal from the data input device.
