TW506227B - Method and apparatus for deriving at least one audio signal from two or more input audio signals - Google Patents
Method and apparatus for deriving at least one audio signal from two or more input audio signals Download PDFInfo
- Publication number
- TW506227B TW506227B TW089124809A TW89124809A TW506227B TW 506227 B TW506227 B TW 506227B TW 089124809 A TW089124809 A TW 089124809A TW 89124809 A TW89124809 A TW 89124809A TW 506227 B TW506227 B TW 506227B
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- Taiwan
- Prior art keywords
- signals
- signal
- output
- mentioned
- audio signals
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Analogue/Digital Conversion (AREA)
- Stereo-Broadcasting Methods (AREA)
- Toys (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45481099A | 1999-12-03 | 1999-12-03 | |
| US09/532,711 US6920223B1 (en) | 1999-12-03 | 2000-03-22 | Method for deriving at least three audio signals from two input audio signals |
| US09/602,585 US6970567B1 (en) | 1999-12-03 | 2000-06-21 | Method and apparatus for deriving at least one audio signal from two or more input audio signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW506227B true TW506227B (en) | 2002-10-11 |
Family
ID=27412620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW089124809A TW506227B (en) | 1999-12-03 | 2000-11-22 | Method and apparatus for deriving at least one audio signal from two or more input audio signals |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6970567B1 (https=) |
| EP (1) | EP1234485B1 (https=) |
| JP (1) | JP2003515771A (https=) |
| CN (1) | CN1250046C (https=) |
| AT (1) | ATE301384T1 (https=) |
| AU (1) | AU784083B2 (https=) |
| BR (1) | BR0016741A (https=) |
| CA (1) | CA2392602A1 (https=) |
| DE (1) | DE60021756T2 (https=) |
| HK (1) | HK1054838B (https=) |
| MX (1) | MXPA02005520A (https=) |
| TW (1) | TW506227B (https=) |
| WO (1) | WO2001041505A1 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI393119B (zh) * | 2004-04-05 | 2013-04-11 | Koninkl Philips Electronics Nv | 多通道編碼器、編碼方法、電腦程式產品及多通道解碼器 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7280664B2 (en) | 2000-08-31 | 2007-10-09 | Dolby Laboratories Licensing Corporation | Method for apparatus for audio matrix decoding |
| US7003467B1 (en) | 2000-10-06 | 2006-02-21 | Digital Theater Systems, Inc. | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
| CA2992051C (en) | 2004-03-01 | 2019-01-22 | Dolby Laboratories Licensing Corporation | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
| JP4594681B2 (ja) * | 2004-09-08 | 2010-12-08 | ソニー株式会社 | 音声信号処理装置および音声信号処理方法 |
| JP4580210B2 (ja) * | 2004-10-19 | 2010-11-10 | ソニー株式会社 | 音声信号処理装置および音声信号処理方法 |
| US8111830B2 (en) * | 2005-12-19 | 2012-02-07 | Samsung Electronics Co., Ltd. | Method and apparatus to provide active audio matrix decoding based on the positions of speakers and a listener |
| FR2916078A1 (fr) * | 2007-05-10 | 2008-11-14 | France Telecom | Procede de codage et decodage audio, codeur audio, decodeur audio et programmes d'ordinateur associes |
| EP2232700B1 (en) | 2007-12-21 | 2014-08-13 | Dts Llc | System for adjusting perceived loudness of audio signals |
| TWI424755B (zh) * | 2008-01-11 | 2014-01-21 | Dolby Lab Licensing Corp | 矩陣解碼器 |
| TWI449442B (zh) | 2009-01-14 | 2014-08-11 | Dolby Lab Licensing Corp | 用於無回授之頻域主動矩陣解碼的方法與系統 |
| US8538042B2 (en) | 2009-08-11 | 2013-09-17 | Dts Llc | System for increasing perceived loudness of speakers |
| JP5248718B1 (ja) | 2011-12-19 | 2013-07-31 | パナソニック株式会社 | 音分離装置、および音分離方法 |
| US9312829B2 (en) | 2012-04-12 | 2016-04-12 | Dts Llc | System for adjusting loudness of audio signals in real time |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589129A (en) | 1984-02-21 | 1986-05-13 | Kintek, Inc. | Signal decoding system |
| US4799260A (en) | 1985-03-07 | 1989-01-17 | Dolby Laboratories Licensing Corporation | Variable matrix decoder |
| US5172415A (en) | 1990-06-08 | 1992-12-15 | Fosgate James W | Surround processor |
| US5428687A (en) | 1990-06-08 | 1995-06-27 | James W. Fosgate | Control voltage generator multiplier and one-shot for integrated surround sound processor |
| US5625696A (en) | 1990-06-08 | 1997-04-29 | Harman International Industries, Inc. | Six-axis surround sound processor with improved matrix and cancellation control |
| US5295189A (en) | 1990-06-08 | 1994-03-15 | Fosgate James W | Control voltage generator for surround sound processor |
| US5504819A (en) | 1990-06-08 | 1996-04-02 | Harman International Industries, Inc. | Surround sound processor with improved control voltage generator |
| JP3472046B2 (ja) | 1996-08-23 | 2003-12-02 | 株式会社国際電気通信基礎技術研究所 | 信号分離装置 |
| US5862228A (en) | 1997-02-21 | 1999-01-19 | Dolby Laboratories Licensing Corporation | Audio matrix encoding |
| US6198826B1 (en) | 1997-05-19 | 2001-03-06 | Qsound Labs, Inc. | Qsound surround synthesis from stereo |
-
2000
- 2000-06-21 US US09/602,585 patent/US6970567B1/en not_active Expired - Fee Related
- 2000-11-22 TW TW089124809A patent/TW506227B/zh not_active IP Right Cessation
- 2000-11-29 AT AT00983809T patent/ATE301384T1/de not_active IP Right Cessation
- 2000-11-29 JP JP2001541299A patent/JP2003515771A/ja not_active Withdrawn
- 2000-11-29 MX MXPA02005520A patent/MXPA02005520A/es active IP Right Grant
- 2000-11-29 AU AU20518/01A patent/AU784083B2/en not_active Ceased
- 2000-11-29 EP EP00983809A patent/EP1234485B1/en not_active Expired - Lifetime
- 2000-11-29 DE DE60021756T patent/DE60021756T2/de not_active Expired - Fee Related
- 2000-11-29 CA CA002392602A patent/CA2392602A1/en not_active Abandoned
- 2000-11-29 CN CNB008165629A patent/CN1250046C/zh not_active Expired - Fee Related
- 2000-11-29 WO PCT/US2000/032537 patent/WO2001041505A1/en not_active Ceased
- 2000-11-29 BR BR0016741-0A patent/BR0016741A/pt not_active Application Discontinuation
- 2000-11-29 HK HK03104927.7A patent/HK1054838B/zh not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI393119B (zh) * | 2004-04-05 | 2013-04-11 | Koninkl Philips Electronics Nv | 多通道編碼器、編碼方法、電腦程式產品及多通道解碼器 |
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA02005520A (es) | 2002-10-23 |
| WO2001041505A1 (en) | 2001-06-07 |
| DE60021756T2 (de) | 2006-04-20 |
| BR0016741A (pt) | 2002-09-03 |
| AU2051801A (en) | 2001-06-12 |
| CA2392602A1 (en) | 2001-06-07 |
| US6970567B1 (en) | 2005-11-29 |
| CN1402957A (zh) | 2003-03-12 |
| HK1054838A1 (en) | 2003-12-12 |
| CN1250046C (zh) | 2006-04-05 |
| DE60021756D1 (de) | 2005-09-08 |
| ATE301384T1 (de) | 2005-08-15 |
| AU784083B2 (en) | 2006-02-02 |
| EP1234485A1 (en) | 2002-08-28 |
| EP1234485B1 (en) | 2005-08-03 |
| HK1054838B (zh) | 2006-09-08 |
| JP2003515771A (ja) | 2003-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent | ||
| MM4A | Annulment or lapse of patent due to non-payment of fees |