| 摘要 |
PURPOSE: A case worn on a wrist thereof by a wristband related to a keyboard is provided to fix the case to the wrist with the wristband which hides and protects a subordinate keyboard to input literal or functional data into a processing unit without the keyboard inside the case. CONSTITUTION: A portable case(2) is composed of devices(24,25) for attaching a wristband(3) to a wrist and device for connecting a flexible support(11) of a keyboard(23) with keys(14,15) having the alphabet or a functional display, the keyboard connected to a data processing unit controlling display devices(16a,16b) indicating letters, which are supplied by the processing unit, on a dial of the case, and the electric power and the processing unit for electronic components of the display devices provided by a power source. The flexible support for the keyboard is connected to one side of the case and the length substantially corresponds to the size of the circumference of the wrist. The wristband totally covers the keyboard as fixed devices are fixed on the opposite side to devices for connecting the keyboard and removable fixing device is located in the proximity of the connection unit.
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