Compiler system with multiple or chord keyboard

摘要

The system has a multiple, 3 x 4 keyboard, that is divided into code keys (10) and a combination key (20). Each code key has a symbol code (11), as "%" or "?", a number code, as "1", "2", three letter codes (13) or two letter codes with intermediate space, as "ABC", "QZO", and a sequence number code (14), as "1.1", "1.2". The combination key contains the number code "0" and has the function of a segment combination (expressed by the symbol "a"), and the compiler system can call on 81 field codes for storing necessary data.