Input device e.g. keyboard, for initializing electronic transaction e.g. cash withdrawal, has alphanumeric value assigning unit to assign specific alphanumeric value to each input key, before keying sequence of numbers and characters

摘要

The device has a number of input keys (14, 16, 18, 20, 22, 24, 26, 28, 30, 32) and control keys (36, 38, 40, 42) that are arranged in an operating area (12) for entering numbers, characters, and control signals. The input keys do not have a fixed alphanumeric value assigned to them. An alphanumeric value assigning unit assigns a specific alphanumeric value to each input key, before keying a sequence of numbers and characters.