KR20010052856A - 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 - Google Patents
패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 Download PDFInfo
- Publication number
- KR20010052856A KR20010052856A KR1020007014192A KR20007014192A KR20010052856A KR 20010052856 A KR20010052856 A KR 20010052856A KR 1020007014192 A KR1020007014192 A KR 1020007014192A KR 20007014192 A KR20007014192 A KR 20007014192A KR 20010052856 A KR20010052856 A KR 20010052856A
- Authority
- KR
- South Korea
- Prior art keywords
- frame
- signal
- pitch
- buffer
- fec
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
Abstract
Description
Claims (1)
- 발생된 음성에서 손실된 음성 정보의 영향을 은폐하는 것으로, 상기 음성 정보가 하나 또는 그 이상의 패킷(packet)을 수신하지 않는 수신기에 압축되어 패킷으로 전송되는 방법에 있어서,음성 정보를 나타내는 수신된 패킷을 근거로 음성 신호를 형성하는 단계; 및패킷이 수신기에서 음성 신호를 형성하는데 이용가능하지 않다는 결정에 응답하여, 이전에 형성된 음성 신호의 일부를 사용하여 이용가능하지 않은 패킷에 대응하는 음성 신호의 일부를 합성하고, 이러한 합성에서 사용되는 이전에 형성된 일부의 피치 주기(pitch period)의 수가 임계값 이하의 기본 주파수의 음성에 대한 것보다 임계값 이상의 기준 주파수의 음성에 대한 것이 더 큰 단계를 구비하는 것을 특징으로 하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13001699P | 1999-04-19 | 1999-04-19 | |
US60/130,016 | 1999-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010052856A true KR20010052856A (ko) | 2001-06-25 |
KR100615344B1 KR100615344B1 (ko) | 2006-08-25 |
Family
ID=22442648
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020007014191A KR100633720B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 수행하는 방법 및 장치 |
KR1020007014272A KR100630253B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
KR1020007014193A KR100736817B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
KR1020007014192A KR100615344B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
KR1020007014271A KR100745387B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020007014191A KR100633720B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 수행하는 방법 및 장치 |
KR1020007014272A KR100630253B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
KR1020007014193A KR100736817B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020007014271A KR100745387B1 (ko) | 1999-04-19 | 2000-04-19 | 패킷 손실 또는 프레임 삭제 은폐를 실행하는 방법 및 장치 |
Country Status (6)
Country | Link |
---|---|
EP (5) | EP1088303B1 (ko) |
JP (12) | JP4966453B2 (ko) |
KR (5) | KR100633720B1 (ko) |
CA (5) | CA2335003C (ko) |
DE (5) | DE60029715T2 (ko) |
WO (5) | WO2000063884A1 (ko) |
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2000
- 2000-04-19 CA CA002335003A patent/CA2335003C/en not_active Expired - Lifetime
- 2000-04-19 EP EP00928202A patent/EP1088303B1/en not_active Expired - Lifetime
- 2000-04-19 DE DE60029715T patent/DE60029715T2/de not_active Expired - Lifetime
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- 2000-04-19 KR KR1020007014191A patent/KR100633720B1/ko active IP Right Grant
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- 2000-04-19 WO PCT/US2000/010577 patent/WO2000063884A1/en active IP Right Grant
- 2000-04-19 EP EP00928201A patent/EP1086452B1/en not_active Expired - Lifetime
- 2000-04-19 EP EP00926156A patent/EP1088301B1/en not_active Expired - Lifetime
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- 2000-04-19 EP EP00926180A patent/EP1088302B1/en not_active Expired - Lifetime
- 2000-04-19 DE DE60022597T patent/DE60022597T2/de not_active Expired - Lifetime
- 2000-04-19 JP JP2000612927A patent/JP4966452B2/ja not_active Expired - Lifetime
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- 2000-04-19 WO PCT/US2000/010576 patent/WO2000063883A1/en active IP Right Grant
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- 2000-04-19 DE DE60039565T patent/DE60039565D1/de not_active Expired - Lifetime
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- 2000-04-19 CA CA002335005A patent/CA2335005C/en not_active Expired - Lifetime
- 2000-04-19 KR KR1020007014272A patent/KR100630253B1/ko active IP Right Grant
- 2000-04-19 WO PCT/US2000/010467 patent/WO2000063881A1/en active IP Right Grant
- 2000-04-19 KR KR1020007014193A patent/KR100736817B1/ko active IP Right Grant
- 2000-04-19 KR KR1020007014192A patent/KR100615344B1/ko active IP Right Grant
- 2000-04-19 WO PCT/US2000/010637 patent/WO2000063885A1/en active IP Right Grant
- 2000-04-19 DE DE60023237T patent/DE60023237T2/de not_active Expired - Lifetime
- 2000-04-19 KR KR1020007014271A patent/KR100745387B1/ko active IP Right Grant
- 2000-04-19 DE DE60016532T patent/DE60016532T2/de not_active Expired - Lifetime
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