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Abstract

A code converter has a network of logic circuits connected in reverse binary tree fashion with logic paths between leaf nodes and a common root node. Characters are compressed from standard codes to variable-length Huffman code by pulse applying connections to the paths from a decoder. An OR-gate is connected to '1' branches of the network to deliver the output code. Characters are decompressed from Huffman to standard codes by connection of the Huffman code to control the clocked logic circuits to deliver a pulse from the root node to one of the inputs of an encoder. A feedback loop connects the root node and the path end nodes to initiate the next conversion. Alternative embodiments have decoder staging to minimize delay and parallel compressed code output.

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First Claim