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Abstract

A signal input sheet having a flexible upper laminate and a lower laminate. The upper laminate includes either a conductive layer or a resistive layer on its lower surface as a first layer and at least one hand-written input area and at least one binary data input area on its upper surface. The lower laminate includes either a conductive layer or a resistance layer on its upper surface as a second layer, however, at least one of the first and second layer is formed as a resistive layer. Elastic insulative spacers are interposed between the first layer of the upper laminate and the second layer of the lower laminate. The spacers are arranged at desired intervals to allow the first layer to come in contact with the second layer when pressure is applied to the upper laminate from the outside. The spacing between adjacent insulative spacers is larger in the binary input area than the hand-written input area. Also, the insulative spacers are wider in the binary data input area as opposed to the hand-written input area. Means are provided for applying a voltage between the upper and lower laminates. In addition, means are provided for detecting at what position the force is applied from the outside.

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First Claim