상세정보
등록 광대역 코덱 음성부호화기의 품질향상 방법 및 장치
- 출원번호
- 16267062 (2019.02.04)
- 공개번호
- 20190180765 (2019.06.13)
- 등록번호
- 10607624 (2020.03.31)
- 출원국
- 미국
- 협약과제
- 11PI1500, FMC 어커스틱 융합코덱 및 제어기술 연구, 이병선
- 초록
- The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.
- KSP 제안 키워드
- Audio signal, Communication system, Fixed codebook, Voice signal
- 패밀리
| 구분 | 특허 | 출원국 | KIPRIS |
|---|---|---|---|
| 등록 | 통신 시스템에서 신호 코덱 장치 및 방법 | 대한민국 | KIPRIS |
| 등록 | 광대역 코덱 음성부호화기의 품질향상 방법 및 장치 | 미국 |