Patent ID: 9437197
Filing Date: 2016-09-06
CPC Classification: G10L

Claim Text:
1. An encoding device, comprising: a first high-frequency encoding circuit which calculates a high-frequency code amount being a code amount of a high-frequency code string for obtaining a high-frequency component based on a low-frequency component and the high-frequency component of an input signal; a low-frequency encoding circuit which encodes the low-frequency component of the input signal based on the high-frequency code amount calculated by the first high-frequency encoding circuit to generate a low-frequency code string; a low-frequency decoding circuit which decodes the low-frequency code string; a second high-frequency encoding circuit which generates the high-frequency code string based on a decoded low-frequency component obtained by decoding the low-frequency code string and the high-frequency component such that the code amount of the high-frequency code string is not larger than the high-frequency code amount; a multiplexing circuit which multiplexes the low-frequency code string and the high-frequency code string to generate an output code string; and a delay circuit which delays the high-frequency code amount, the decoded low-frequency component, and the high-frequency component input to the second high-frequency encoding circuit.