Patent ID: 8121850

Claim:
An encoding apparatus, comprising: a first encoder, comprising one of a first circuit and a first processor, that encodes an input signal to generate first encoded information; a decoder, comprising one of a second circuit and a second processor, that decodes the first encoded information to generate a decoded signal; an orthogonal transformer, comprising one of a third circuit and a third processor, that orthogonal-transforms the input signal and the decoded signal to generate orthogonal transform coefficients for the input signal and the decoded signal; a second encoder, comprising one of a fourth circuit and a fourth processor, that generates second encoded information representing a high band part in the orthogonal transform coefficients of the decoded signal, based on the orthogonal transform coefficients of the input signal and the orthogonal transform coefficients of the decoded signal; and an integrator, comprising one of a fifth circuit and a fifth processor, that integrates the first encoded information and the second encoded information, wherein the input signal comprises at least one of an input speech signal and an input sound signal, and the decoded signal comprises at least one of a decoded speech signal and a decoded sound signal.