US 12,131,743 B2
Sound signal receiving and decoding method, sound signal decoding method, sound signal receiving side apparatus, decoding apparatus, program and storage medium
Takehiro Moriya, Tokyo (JP); Yutaka Kamamoto, Tokyo (JP); and Ryosuke Sugiura, Tokyo (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/617,856
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Dec. 27, 2019, PCT No. PCT/JP2019/051595
§ 371(c)(1), (2) Date Dec. 9, 2021,
PCT Pub. No. WO2020/250470, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. PCT/JP2019/023423 (WO), filed on Jun. 13, 2019.
Prior Publication US 2022/0238123 A1, Jul. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/06 (2013.01); G10L 19/00 (2013.01); G10L 19/008 (2013.01)
CPC G10L 19/008 (2013.01) 12 Claims
OG exemplary drawing
 
1. A sound signal receiving and decoding method to be performed by a terminal apparatus connected to a first communication line and a second communication line with a lower priority level than the first communication line, the method comprising:
a reception step of, for a predetermined frame among a plurality of frames, outputting a monaural code included in a first code string input from the first communication line and an extended code with the closest frame number to that of the monaural code among extended codes included in a second code string input from the second communication line, and
for a frame other than the predetermined frame, outputting the monaural code included in the first code string input from the first communication line and the most recent extended code among extended codes that have already been output; and
a decoding step of, for each frame, obtaining and outputting decoded digital sound signals of C (C being an integer that is at least 2) channels based on the monaural code output in the reception step and the extended code output in the reception step.