| 摘要 |
The device for typing and inputting symbols into portable communication means can be used in an application with communicators, pocket PCs, mobile telephones and other similar devices. The device comprises input elements in the form of keys under a user's finger, some of which keys are arranged on the rear side of the device body. The device is characterized in that each of the keys arranged on the rear side of the device body is intended for one finger only and is capable of registering four types of action by the finger: bending, unbending and shifting of the finger in two perpendicular directions. The device is aimed from the outset at direct typing rather than chorded typing, and has a large number of actions which can be carried out by fingers on the rear panel of the device, which should result in easier learning of typing, and, as a consequence, in more rapid typing.
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