Decoder, method of operating the same, and apparatuses including the same

摘要

A decoder, a method of decoding and systems implementing the same are disclosed. In one example, the method includes calculating syndrome values from input codewords, generating an error location polynomial about the codewords using the syndrome values, determining an error count in the codewords using the error location polynomial, and adjusting power consumption of a circuit in response to the determined error count in the codewords. In one example, a frequency of a clock signal to be provided to a search circuit may be determined based on the error count, and the clock signal may be provided having the determined frequency to a search circuit, such as a Chien search circuit.

主权项

1. A method of decoding, the method comprising:
calculating syndrome values from input codewords; generating an error location polynomial about the codewords using the syndrome values; determining an error count in the codewords using the error location polynomial; determining a frequency of a clock signal based on the error count, the clock signal to be provided to a circuit configured to perform a Chien search; and providing the clock signal having the determined frequency to the circuit configured to perform the Chien search, wherein determining the frequency of the clock signal comprises determining the frequency of the clock signal to be a first frequency when the error count is a first value and determining the frequency of the clock signal to be a second frequency lower than the first frequency when the count value is a second value that is higher than the first value.