Algebraic coder-decoder for Reed Solomon and BCH block codes, applicable to telecommunications

摘要

An algebraic coder-decoder for Reed Solomon and BCH block codes is provided, namely a coprocessor of standard microprocessors specialized for algebraic processing in Galois bodies. This processor includes a clock generator which sets the rhythm of the circuit through a cycle clock and a subcycle clock, a control circuit which integrates an automatic loop system and a cycle stealing device, an arithmetic operator for carrying out simple operations on unsigned numbers representing the variables and the parameters of the algorithms a Galois operator for effecting the elementary polynomial operations in the five Galois bodies and storing the data exchanged with the host processor, an interface circuit which integrates a data exchange managament automation, a data bus, an instruction and the connections required for the control signals which connect the four blocks of the device together.