Patent ID: 7760826

Claim:
A burst noise suppressing apparatus, comprising: an adaptive apparatus for equalizing a signal-transmitting channel, the adaptive apparatus having a plurality of coefficients set therein and processing signals received from the signal-transmitting channel according to the coefficients, wherein the adaptive apparatus updates the coefficients according to a current state of the signal-transmitting channel by employing an error estimator; a burst noise detector used to detect a burst noise occurring in the signal-transmitting channel; and an ON/OFF switching unit used to stop the error estimator from updating the coefficients of the adaptive apparatus when the burst noise is detected by the burst noise detector, wherein the burst noise detector has a signal-to-noise ratio (SNR) measurement circuit that measures a SNR value of the signals that have been processed by the adaptive apparatus; and wherein the ON/OFF switching unit further backups the significant coefficients of the adaptive apparatus, and stops the error estimator from updating the coefficients of the adaptive apparatus and restores the significant coefficients of the adaptive apparatus according to the significant coefficients stored previously when the burst noise is detected by the burst noise detector.