Perceptual keyboard for computer, or portable device, uses grouping of keys by phoneme, and ensures adjacent keys correspond to adjacent characters in phoneme

摘要

The keyboard (1) has a reserved zone (3) for alphabetic keys (5) and control program (15) for the computer unit (11) connected to the keyboard. The alphabetic keys carry alphabetic symbols (7), with one key provided per character. The keys are grouped by association with a common phoneme, with adjacent keys in a phoneme group corresponding to adjacent characters in the phoneme.