Patent ID: 6434717
Filing Date: 2002-08-13
Classification: H03M

Abstract:
An error detecting device, to which a decoding result of a code obtained by encoding a message composed of data and a parity bit of the data, which is appended to an end of the data, for detecting an error in the decoding result, comprising:an operating unit, to which a bit string of the decoding result is input in a decoding order, performing an operation process for generating a parity bit for all of bits except for the decoded value of the parity bit within the bit string by recognizing as an initial value the decoded value of the parity bit within the bit string, and performing an inverse operation process; and a determining unit determining whether or not the decoding result is an error by detecting whether or not a final operation result of said operating unit matches an initial state of the operation process for generating the parity bit.