| 摘要 |
A quantization device comprises: a first quantization module for performing quantization without a prediction between frames; and a second quantization module for performing quantization with a prediction between frames, and the first quantization module comprises: a first quantization part for quantizing an input signal; and a third quantization part for quantizing a first quantization error signal, and the second quantization module comprises: a second quantization part for quantizing a prediction error; and a fourth quantization part for quantizing a second quantization error signal, and the first quantization part and the second quantization part comprise a vector quantizer of a trellis structure. |
