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Frequency band extending device and method, encoding device and method, decoding device and method, and program

  • US 9,208,795 B2
  • Filed: 09/29/2010
  • Issued: 12/08/2015
  • Est. Priority Date: 10/07/2009
  • Status: Active Grant
First Claim
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1. A decoding device comprising:

  • demultiplexing means configured to demultiplex input encoded data into at least low frequency encoded data and an index;

    low frequency decoding means configured to decode said low frequency encoded data to generate a low frequency signal;

    sub-band dividing means configured to divide the band of said low frequency signal into a plurality of low frequency sub-bands to generate a low frequency sub-band signal for each of said low frequency sub-bands; and

    generating means configured to generate a high frequency signal based on said index and said low frequency sub-band signal.

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