Cisco Technology, Inc. (20250131930). REDUCED MULTIDIMENSIONAL INDICES COMPRESSION FOR AUDIO CODEC SYSTEM
REDUCED MULTIDIMENSIONAL INDICES COMPRESSION FOR AUDIO CODEC SYSTEM
Organization Name
Inventor(s)
Mihailo Kolundzija of Lausanne CH
Raul A. Casas of Doylestown PA US
Samer Lutfi Hijazi of San Jose CA US
Christopher Rowen of Santa Cruz CA US
REDUCED MULTIDIMENSIONAL INDICES COMPRESSION FOR AUDIO CODEC SYSTEM
This abstract first appeared for US patent application 20250131930 titled 'REDUCED MULTIDIMENSIONAL INDICES COMPRESSION FOR AUDIO CODEC SYSTEM
Original Abstract Submitted
a method comprises: storing n dimension (nd) dictionaries (nd dictionaries) where n decreases from a highest dimension to a lowest dimension, each nd dictionary including codewords for sequences of n symbols that are of a limited number that is less than all possible sequences of n symbols; storing key blocks for corresponding ones of the nd dictionaries, each key block configured with keys that map sequences of n−1 symbols to dictionaries of a corresponding one of the nd dictionaries that includes the codewords; receiving a sequence of symbols that represent indices of codevectors of a vector quantizer codebook that are representative of audio; determining a codeword using the key blocks and the nd dictionaries; and encoding a current symbol of the sequence of symbols using the codeword.
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