CA2236649A1 - Methode et appareil pour l'encodage de signaux numeriques destines a la transmission et/ou au stockage, et pour le decodage de tels signaux suite a la transmissions et/ou au stockage - Google Patents
Methode et appareil pour l'encodage de signaux numeriques destines a la transmission et/ou au stockage, et pour le decodage de tels signaux suite a la transmissions et/ou au stockage Download PDFInfo
- Publication number
- CA2236649A1 CA2236649A1 CA 2236649 CA2236649A CA2236649A1 CA 2236649 A1 CA2236649 A1 CA 2236649A1 CA 2236649 CA2236649 CA 2236649 CA 2236649 A CA2236649 A CA 2236649A CA 2236649 A1 CA2236649 A1 CA 2236649A1
- Authority
- CA
- Canada
- Prior art keywords
- subband signals
- signal
- values
- delay means
- subband
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001228 spectrum Methods 0.000 claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 22
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 7
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 description 14
- 238000001914 filtration Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 101100386518 Caenorhabditis elegans dbl-1 gene Proteins 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- 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
- H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—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 for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0004—Modulated-carrier systems using wavelets
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2236649 CA2236649A1 (fr) | 1998-05-05 | 1998-05-05 | Methode et appareil pour l'encodage de signaux numeriques destines a la transmission et/ou au stockage, et pour le decodage de tels signaux suite a la transmissions et/ou au stockage |
| PCT/CA1998/000816 WO1999012317A1 (fr) | 1997-08-29 | 1998-08-28 | Transmission numerique a codage de sous-bande |
| DE69811688T DE69811688T2 (de) | 1997-08-29 | 1998-08-28 | Digitale übertragung mit teilbandkodierung |
| AU89678/98A AU8967898A (en) | 1997-08-29 | 1998-08-28 | Digital transmission using subband coding |
| EP98941177A EP1010307B1 (fr) | 1997-08-29 | 1998-08-28 | Transmission numerique a codage par sous-bandes |
| CA002301866A CA2301866A1 (fr) | 1997-08-29 | 1998-08-28 | Transmission numerique a codage de sous-bande |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2236649 CA2236649A1 (fr) | 1998-05-05 | 1998-05-05 | Methode et appareil pour l'encodage de signaux numeriques destines a la transmission et/ou au stockage, et pour le decodage de tels signaux suite a la transmissions et/ou au stockage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2236649A1 true CA2236649A1 (fr) | 1999-11-05 |
Family
ID=29275646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2236649 Abandoned CA2236649A1 (fr) | 1997-08-29 | 1998-05-05 | Methode et appareil pour l'encodage de signaux numeriques destines a la transmission et/ou au stockage, et pour le decodage de tels signaux suite a la transmissions et/ou au stockage |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2236649A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210383818A1 (en) * | 2015-12-14 | 2021-12-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing an encoded audio signal |
-
1998
- 1998-05-05 CA CA 2236649 patent/CA2236649A1/fr not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210383818A1 (en) * | 2015-12-14 | 2021-12-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing an encoded audio signal |
| US11862184B2 (en) * | 2015-12-14 | 2024-01-02 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing an encoded audio signal by upsampling a core audio signal to upsampled spectra with higher frequencies and spectral width |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |