US 11,922,960 B2
Method and device for quantizing linear predictive coefficient, and method and device for dequantizing same
Ho-sang Sung, Yongin-si (KR); Sang-won Kang, Seongnam-si (KR); Jong-hyun Kim, Samcheok-si (KR); and Eun-mi Oh, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Ansan-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Gyeonggi-do (KR)
Filed on Jan. 10, 2022, as Appl. No. 17/571,597.
Application 17/571,597 is a continuation of application No. 16/700,246, filed on Dec. 2, 2019, granted, now 11,238,878.
Application 16/700,246 is a continuation of application No. 15/309,334, granted, now 10,504,532, issued on Dec. 10, 2019, previously published as PCT/KR2015/004577, filed on May 7, 2015.
Claims priority of provisional application 62/029,687, filed on Jul. 28, 2014.
Claims priority of provisional application 61/989,725, filed on May 7, 2014.
Prior Publication US 2022/0130403 A1, Apr. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/00 (2013.01); G10L 19/022 (2013.01); G10L 19/038 (2013.01); G10L 19/04 (2013.01); G10L 19/06 (2013.01); G10L 21/00 (2013.01)
CPC G10L 19/038 (2013.01) [G10L 19/022 (2013.01); G10L 19/04 (2013.01); G10L 19/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A quantization apparatus comprising:
an inter-frame predictor configured to generate a first prediction vector of a current frame from a quantized input vector of a previous frame;
an intra-frame predictor configured to generate a second prediction vector of a current stage from a prediction matrix and a quantized first error vector of a previous stage, wherein the quantized first error vector of the previous stage is obtained based on a second prediction vector of the previous stage and a quantized second error vector of the previous stage; and
a trellis-structured vector quantizer configured to quantize a second error vector of the current stage which corresponds to a difference between a first error vector of the current frame and the second prediction vector of the current stage to generate a quantized second error vector of the current stage, wherein the first error vector of the current frame corresponds to a difference between the first prediction vector of the current frame and an input vector of the current frame.