Patent ID: 11922960
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A quantization apparatus comprising:
a first quantization module for performing quantization without an inter-frame prediction; and
a second quantization module for performing quantization with an inter-frame prediction,
wherein the first quantization module comprises:
a first intra-frame predictor configured to generate a prediction vector by estimating a current stage sub-vector of the prediction vector based on a first prediction matrix of a current stage and a previous stage sub-vector of a quantized input vector, wherein the quantized input vector is obtained based on a quantized prediction error vector and the prediction vector; and
a first trellis-structured vector quantizer configured to quantize a prediction error vector which corresponds to a difference between the prediction vector and an input vector to generate the quantized prediction error vector.