DEVICE AND METHOD FOR NORMALIZING METRIC VALUE OF COMPONENT DECODER IN MOBILE COMMUNICATION SYSTEM

摘要

A decoder using transition of a plurality of metric values at a plurality of time durations is disclosed. The decoder comprises a decision circuit that generates a decision signal when the metric values all exceed a predetermined value. A subtracter subtracts the predetermined value from the metric values in response to the decision signal so as to normalize the metric values. The decision circuit includes a plurality of memories having a predetermined number of bits that store the corresponding metric values. A NAND gate NANDs the most significant bit (MSB) values provided from the respective memories. The NAND gate generates the decision signal that initiates resetting of the MSB values of the respective memories, when the MSB values are all HIGH or "1".