CODE FRAME SYNCHRONISATION APPARATUS WITH INTEGRATED SOFT AND HARD DECISIONS Russian patent published in 2012 - IPC H04L7/00 

FIELD: information technology.

SUBSTANCE: code frame synchronisation apparatus with integrated soft and hard decisions has an information storage consisting of ROM1, ROM2 and a control circuit, a circuit for generating the most probable error vectors, a block of adders, a circuit for determining word and number boundaries, circuits for determining block boundaries, a circuit for counting the number sequence and an assembly circuit, wherein the input for features of the least reliable symbols of the device is combined with the input of the circuit for generating the most probable error vectors and the storage, and the output for features of the least reliable symbols of the storage is the output of the device. The apparatus includes common blocks of threshold elements and the assembly, wherein one of the inputs of the common block of the threshold element of the circuit for determining word and number boundaries is connected to outputs of the blocks of counters for soft decisions, and the other input of the block of the threshold element is connected to the output of the circuit of counters in the circuit for hard determination of boundaries of blocks, the output of the common block of the threshold element is connected to one of the inputs of the assembly, and the other input of the assembly is connected to the output of the threshold element in the circuit for hard determination of boundaries of blocks, and the outputs of the assembly are connected to inputs of the circuit of the assembly, the output of which is the output of the device for generating signals about the end of each information block.

EFFECT: high reliability of the received information in high-noise level channels.

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