GENERATOR OF BINARY-CODED REPRESENTATIONS OF SYMBOLS

摘要

A binary-code generator includes a five-stage binary counter and a modulo-five counter connected in cascade. The input of the binary counter is driven, via a pulse repetition rate divider, from a source of periodically recurring pulses. The binary counter monotonically cycles through its 32 states to generate 32 different coded combinations of bits and steps the modulo-five counter which steps through five states. These five states only generate four different coded combinations since two of the states generate the same coded combination. The coded combinations of bits are fed to a shift register in parallel and are then transmitted therefrom serially.