US 12,431,151 B2
Coding device, decoding device, and method and program thereof
Takehiro Moriya, Atsugi (JP); Yutaka Kamamoto, Atsugi (JP); and Noboru Harada, Atsugi (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Filed on Jun. 14, 2024, as Appl. No. 18/743,662.
Application 18/743,662 is a continuation of application No. 18/195,015, filed on May 9, 2023, granted, now 12,051,430.
Application 18/195,015 is a continuation of application No. 17/370,060, filed on Jul. 8, 2021, granted, now 11,694,702, issued on Jul. 4, 2023.
Application 17/370,060 is a continuation of application No. 16/527,160, filed on Jul. 31, 2019, granted, now 11,120,809, issued on Sep. 14, 2021.
Application 16/527,160 is a continuation of application No. 15/307,059, granted, now 10,418,042, issued on Sep. 17, 2019, previously published as PCT/JP2015/057727, filed on Mar. 16, 2015.
Claims priority of application No. 2014-094758 (JP), filed on May 1, 2014.
Prior Publication US 2024/0339119 A1, Oct. 10, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/00 (2013.01); G10L 19/038 (2013.01); G10L 19/07 (2013.01); G10L 21/00 (2013.01); G10L 19/005 (2013.01)
CPC G10L 19/07 (2013.01) [G10L 19/038 (2013.01); G10L 2019/0016 (2013.01); G10L 19/005 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A coding device comprising:
processing circuitry configured to
obtain a first code by coding a differential vector formed of differentials between a vector of a line spectrum pair parameter sequence of more than one order of a present frame and a prediction vector containing at least a predicted vector from a past frame, and obtain a quantization differential vector corresponding to the first code;
determine whether or not to generate a second code using an index Q′ based on the difference amount between adjacent orders of parameters in a frequency domain; and
generate the second code by coding a correction vector, and the coding device outputs the first code and the second code.