transmitter to a receiver. The present invention is distinguished by that from the frequency coefficients of earlier and, if need be, future blocks, a decision function is formed, on the basis of which the occurrence of an error is determined, and that the frequency coefficient containing an error is not longer utilized for the evaluation of subsequent blocks.

Another insane pattent. Basicly this means that if you use any freqcuency coefficient to detect an error in coefficients in following blocks, you're screwed ...

Of course you need to compare coefficients ... At least, I see no way to do proper error-correction in this area any other way. That they ever allowed such a pattent ...

Armin