Patent ID: 7864466
Filing Date: 2011-01-04
Classification: G11B,H04L

Abstract:
1. A signal processing apparatus for applying prescribed processing to an input signal series and computing a logarithm likelihood ratio, the apparatus comprising: plural unit processing circuits for executing unit processing of a part of the prescribed processing, for, respectively, signals to be processed, belonging to the input signal series, that are now about to undergo the prescribed processing, and to a prescribed number of signals related to the signals to be processed; and a combined circuit for integrating output of the plural unit processing circuits, to complete the prescribed processing; wherein the plural unit processing circuits are configured to do unit processing corresponding to every item in which a computational expression of the logarithm likelihood ratio is expanded, and at least a part of the plural unit processing circuits is shared as a part of the unit processing circuits with regard to the prescribed processing related not only to the signals to be processed, but to signals related to the signals to be processed.