US 11,705,137 B2
Apparatus for encoding and decoding of integrated speech and audio
Tae Jin Lee, Daejeon (KR); Seung-Kwon Baek, Chungcheongbuk-do (KR); Min Je Kim, Daejeon (KR); Dae Young Jang, Daejeon (KR); Jeongil Seo, Daejeon (KR); Kyeongok Kang, Daejeon (KR); Jin-Woo Hong, Daejeon (KR); Hochong Park, Seoul (KR); and Young-Cheol Park, Seoul (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR); and KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION, Seoul (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR); and Kwangwoon University Industry-Academic Collaboration Foundation, Seoul (KR)
Filed on Jul. 10, 2020, as Appl. No. 16/925,946.
Application 16/925,946 is a continuation of application No. 16/557,238, filed on Aug. 30, 2019, granted, now 10,714,103.
Application 16/557,238 is a continuation of application No. 15/810,732, filed on Nov. 13, 2017, granted, now 10,403,293, issued on Sep. 3, 2019.
Application 15/810,732 is a continuation of application No. 14/534,781, filed on Nov. 6, 2014, granted, now 9,818,411, issued on Nov. 14, 2017.
Application 14/534,781 is a continuation of application No. 13/003,979, granted, now 8,903,720, issued on Dec. 2, 2014, previously published as PCT/KR2009/003855, filed on Jul. 14, 2009.
Claims priority of application No. 10-2008-0068369 (KR), filed on Jul. 14, 2008; application No. 10-2008-0134297 (KR), filed on Dec. 26, 2008; and application No. 10-2009-0061608 (KR), filed on Jul. 7, 2009.
Prior Publication US 2020/0349958 A1, Nov. 5, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/02 (2013.01); G10L 19/008 (2013.01); G10L 19/04 (2013.01); G10L 19/20 (2013.01); G10L 19/12 (2013.01); G10L 19/00 (2013.01)
CPC G10L 19/008 (2013.01) [G10L 19/02 (2013.01); G10L 19/04 (2013.01); G10L 19/12 (2013.01); G10L 19/20 (2013.01); G10L 19/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An encoding method of an input signal performed by at least one processor, the encoding method comprising:
determining a frame of the input signal whether the frame is a speech frame or an audio frame;
encoding the input signal in a speech encoder based CELP coding scheme when the frame is the speech frame,
encoding the input signal in an audio encoder based MDCT coding scheme when the frame is the audio frame; and
generating a bitstream based on an encoded input signal, and
wherein the input signal is processed by using information for compensating a change of a frame unit between the speech frame and the audio frame when a switching occurs between the speech frame and the audio frame in a decoding process about the input signal,
wherein the information is included the bitstream,
wherein the input signal is encoded with respect to a core band,
wherein the core band is a low frequency band which is not expanded in a frequency band of the input signal,
wherein a high frequency band is generated from the core band based on a frequency band expander in a decoding process.