Patent ID: 8311168
Filing Date: 2012-11-13
Classification: H04L

Abstract:
1. A method for processing digital signals comprising a series of symbols and a symbol period with first signal degradation on a first time scale and second signal degradation on a second time scale, the method comprising the steps of: mitigating the first signal degradation with a first filter configured to the first time scale, the first filter including a plurality of delay elements each having a delay less than the symbol period; mitigating the second signal degradation with a second filter configured to the second time scale, the second filter including a plurality of delay elements each having a delay substantially equal to the symbol period; producing a probability estimate in response to processing an output of the first filter or the second filter; and adjusting the first time scale for the first filter or the second time scale for the second filter based on the probability estimate, wherein the first time scale is less than the symbol period and the second time scale is greater than the symbol period.