The present invention provides a method of forming a polymer-wood composite structure and additive systems for use therein. An encoder is disposed to receive an input signal and provides a bitstream based upon a speech coding of a portion of the input signal. This avoids many false alarms caused by one sensor having a low output such as due to accidental disconnection of a wire. In the identification, the cross-sectional shape and length of the identification recess is formed on the basis of the characteristic of the battery apparatus. A resulting substrate deposition pattern thus exhibits a density greater than a deposition mask aperture density while avoiding deposition pattern distortion. A system of linear equations is constructed from which the missing data elements in that layer are determined.