TW296517B - - Google Patents
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- Publication number
- TW296517B TW296517B TW084110399A TW84110399A TW296517B TW 296517 B TW296517 B TW 296517B TW 084110399 A TW084110399 A TW 084110399A TW 84110399 A TW84110399 A TW 84110399A TW 296517 B TW296517 B TW 296517B
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- encoder
- decoder
- frequency domain
- derive
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 17
- 230000002079 cooperative effect Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 7
- 238000013139 quantization Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/04—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 using predictive techniques
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/02—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 using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—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 using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
- G10L19/0208—Subband vocoders
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/04—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 using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/19—Earth-synchronous stations
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aviation & Aerospace Engineering (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP94202898 | 1994-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW296517B true TW296517B (enExample) | 1997-01-21 |
Family
ID=8217261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW084110399A TW296517B (enExample) | 1994-10-06 | 1995-10-04 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5982817A (enExample) |
| KR (1) | KR100419545B1 (enExample) |
| CN (3) | CN1090409C (enExample) |
| TW (1) | TW296517B (enExample) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0773630B1 (en) * | 1995-05-22 | 2004-08-18 | Ntt Mobile Communications Network Inc. | Sound decoding device |
| US6134518A (en) * | 1997-03-04 | 2000-10-17 | International Business Machines Corporation | Digital audio signal coding using a CELP coder and a transform coder |
| US6242922B1 (en) * | 1998-11-06 | 2001-06-05 | General Electric Company | Arc detection architecture based on correlation for circuit breakers |
| US6449313B1 (en) * | 1999-04-28 | 2002-09-10 | Lucent Technologies Inc. | Shaped fixed codebook search for celp speech coding |
| MX2007003063A (es) * | 2004-09-17 | 2007-05-16 | Koninkl Philips Electronics Nv | Codificacion combinada de audio que minimiza la distorsion perceptual. |
| US7554989B2 (en) * | 2005-01-18 | 2009-06-30 | Creative Technology Ltd. | Real time optimization over a shared communication channel |
| US20070268362A1 (en) * | 2006-05-22 | 2007-11-22 | Matthew James West | Compressed data |
| RU2426179C2 (ru) * | 2006-10-10 | 2011-08-10 | Квэлкомм Инкорпорейтед | Способ и устройство для кодирования и декодирования аудиосигналов |
| US20080104659A1 (en) * | 2006-10-27 | 2008-05-01 | Matthew James West | Prioritized real-time data transmission |
| CN101025918B (zh) * | 2007-01-19 | 2011-06-29 | 清华大学 | 一种语音/音乐双模编解码无缝切换方法 |
| US8472912B2 (en) | 2009-12-11 | 2013-06-25 | Maxlinear, Inc. | Low-complexity diversity using preequalization |
| US8010070B2 (en) * | 2007-10-09 | 2011-08-30 | Maxlinear, Inc. | Low-complexity diversity using coarse FFT and subband-wise combining |
| ES2671711T3 (es) * | 2008-09-18 | 2018-06-08 | Electronics And Telecommunications Research Institute | Aparato de codificación y aparato de decodificación para transformar entre codificador basado en transformada de coseno discreta modificada y hetero codificador |
| JP5749462B2 (ja) * | 2010-08-13 | 2015-07-15 | 株式会社Ｎｔｔドコモ | オーディオ復号装置、オーディオ復号方法、オーディオ復号プログラム、オーディオ符号化装置、オーディオ符号化方法、及び、オーディオ符号化プログラム |
| JP5849106B2 (ja) | 2011-02-14 | 2016-01-27 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | 低遅延の統合されたスピーチ及びオーディオ符号化におけるエラー隠しのための装置及び方法 |
| ES2715191T3 (es) | 2011-02-14 | 2019-06-03 | Fraunhofer Ges Forschung | Codificación y decodificación de posiciones de impulso de pistas de una señal de audio |
| AR085362A1 (es) | 2011-02-14 | 2013-09-25 | Fraunhofer Ges Forschung | Aparato y metodo para procesar una señal de audio decodificada en un dominio espectral |
| MY166394A (en) | 2011-02-14 | 2018-06-25 | Fraunhofer Ges Forschung | Information signal representation using lapped transform |
| EP2676270B1 (en) | 2011-02-14 | 2017-02-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Coding a portion of an audio signal using a transient detection and a quality result |
| TWI488176B (zh) * | 2011-02-14 | 2015-06-11 | Fraunhofer Ges Forschung | 音訊信號音軌脈衝位置之編碼與解碼技術 |
| SG192721A1 (en) | 2011-02-14 | 2013-09-30 | Fraunhofer Ges Forschung | Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion |
| WO2012110476A1 (en) | 2011-02-14 | 2012-08-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Linear prediction based coding scheme using spectral domain noise shaping |
| CA2827335C (en) | 2011-02-14 | 2016-08-30 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Audio codec using noise synthesis during inactive phases |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330689A (en) * | 1980-01-28 | 1982-05-18 | The United States Of America As Represented By The Secretary Of The Navy | Multirate digital voice communication processor |
| EP0111612B1 (fr) * | 1982-11-26 | 1987-06-24 | International Business Machines Corporation | Procédé et dispositif de codage d'un signal vocal |
| US4513426A (en) * | 1982-12-20 | 1985-04-23 | At&T Bell Laboratories | Adaptive differential pulse code modulation |
| DE3688980T2 (de) * | 1986-10-30 | 1994-04-21 | Ibm | Verfahren zur Multigeschwindigkeitskodierung von Signalen und Einrichtung zur Durchführung dieses Verfahrens. |
| SE454734B (sv) * | 1987-02-20 | 1988-05-24 | Harald Brusewitz | Forfarande och anordning for sendning och mottagning vid variabel lengdkodning |
| FR2625060B1 (fr) * | 1987-12-16 | 1990-10-05 | Guichard Jacques | Procede et dispositifs de codage et de decodage pour la transmission d'images a travers un reseau a debit variable |
| US5206884A (en) * | 1990-10-25 | 1993-04-27 | Comsat | Transform domain quantization technique for adaptive predictive coding |
| US5265190A (en) * | 1991-05-31 | 1993-11-23 | Motorola, Inc. | CELP vocoder with efficient adaptive codebook search |
| US5684920A (en) * | 1994-03-17 | 1997-11-04 | Nippon Telegraph And Telephone | Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein |
-
1995
- 1995-10-02 KR KR1019960702946A patent/KR100419545B1/ko not_active Expired - Lifetime
- 1995-10-02 CN CN95191230A patent/CN1090409C/zh not_active Expired - Lifetime
- 1995-10-04 TW TW084110399A patent/TW296517B/zh not_active IP Right Cessation
-
1997
- 1997-11-03 US US08/962,895 patent/US5982817A/en not_active Expired - Lifetime
-
2001
- 2001-07-09 CN CNB01121791XA patent/CN1153365C/zh not_active Expired - Lifetime
- 2001-07-09 CN CN01121790A patent/CN1344067A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1344072A (zh) | 2002-04-10 |
| KR960706719A (ko) | 1996-12-09 |
| KR100419545B1 (ko) | 2004-06-04 |
| CN1139999A (zh) | 1997-01-08 |
| CN1153365C (zh) | 2004-06-09 |
| CN1090409C (zh) | 2002-09-04 |
| CN1344067A (zh) | 2002-04-10 |
| US5982817A (en) | 1999-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK4A | Expiration of patent term of an invention patent |