IMPROVED QUANTIZER Russian patent published in 2018 - IPC G10L19/35 G10L19/28 G10L19/05 

FIELD: physics.

SUBSTANCE: quantization module configured to quantize the first coefficient from the coefficient block. This coefficient block contains a number of coefficients for a number of corresponding frequency resolution elements. The quantization module is configured to create a set of quantizers. This set of quantizers contains a number of different quantizers associated with a number of different signal-to-noise ratios, respectively, called SNRs. This series of different quantizers contains a quantizer with noise coverage; one or more quantizers with the addition of pseudorandom noise; and one or more quantizers without the addition of pseudorandom noise. The quantization module is also configured to determine the SNR pointer, serving as a sign of SNR assigned to a specified first coefficient, and to select the first quantizer from a set of quantizers based on the SNR index. In addition, the quantization module is configured to quantize the said first coefficient using the said first quantizer.

EFFECT: increasing the flexibility in assuming different data rates and different levels of distortion.

20 cl, 19 dwg