| 摘要 |
The present invention provides a key input electronic device controlled in operation by a control circuit to which input signals in accordance with input operations are fed, and including a key input unit including an array of a plurality of switches; a key sheet detachably provided over the key input unit; and a sheet identification chip attached to the key sheet. The key sheet has a plurality of press operation portions for pressing and operating the switches, defined by forming on the sheet body a plurality of easily displaceable portions corresponding to the switches. The control circuit changes the image display control based on the sheet identification information recorded on the sheet identification chip.
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