Patent attributes
A signal processing device includes a system of circuit processing in essence while avoiding large sized device under restoring fluctuated signals such as deterioration and the like. The signal processing unit includes a processing unit that restores one of a signal before fluctuation, a signal which should have been intrinsically obtained, and signal data which is approximated from these signals from an initial signal which has fluctuated like deterioration. A fluctuated data region storing fluctuated data and a restored data region storing signal data (restored data) restored every restoring process are installed. The processing unit repeats the following processes in order to produce data formed in the restored data region at the completion of processing as original signal data. The processing unit transfers energy of the fluctuated data from the fluctuated data region to the restored data region using fluctuation-factor information data, which is a fluctuation factor, and produces restored data; and substitutes residual data in the fluctuated data region remained through the data transfer for the fluctuated data.
