| 摘要 |
<p>PURPOSE:To make a space between each key extremely narrow, by assigning plural key contacts to each of plural keys, and discriminating that the number of the shorted key contacts is a key whose maximum key has been depressed. CONSTITUTION:The surface plate MP printed on a soft and thin plate by closely arranging the discrimination symbols KRP of each key in the form of a matrix, the Y pattern plate YP on which the comb tooth-shaped parallel conductor filament pattern YPTN is connected in common to the output terminals Y0-Y3 by dividing it into plural filaments each, corresponding to each line, the sensible pressure type rubber sheet GP, and the X pattern plate XP on which the come tooth-shaped parallel conductor filament pattern XPTN is connected in common to the output terminals X0-X4 by dividing it into plural filaments each, corresponding to each row, so that it can meet at right angles with the conductor filament pattern YPTN, are made to closely adhere to each other in layers. And it is discriminated by depressing the key that the number of intersection points of the conductor filament patterns YPTN and XPTN which have conducted is a key whose maximum key has been depressed.</p> |
