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ENCODING DEVICE, ENCODING METHOD, AND PROGRAM

  • US 20140172433A2
  • Filed: 03/23/2012
  • Published: 06/19/2014
  • Est. Priority Date: 03/31/2011
  • Status: Active Grant
First Claim
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1. An encoding device, comprisinga first high-frequency encoding unit 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 unit which encodes the low-frequency component of the input signal to generate a low-frequency code string;

    a low-frequency decoding unit which decodes the low-frequency code string;

    a second high-frequency encoding unit 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; and

    a multiplexing unit which multiplexes the low-frequency code string and the high-frequency code string to generate an output code string.

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