EP1530201A3
Method and apparatus for selecting an encoding rate in a variable rate vocoder
Abstract
An apparatus for selecting an encoding rate for an input signal (S(n)), comprising: an audio signal detection device for determining whether an audio signal is present in each frequency subband of the input signal (S(n)); and an encoding rate selection device for selecting the encoding rate for the input signal (S(n)) in accordance with the determination as to whether an audio signal is present in each frequency subband of the input signal (S(n)).
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Projected expiry passed 1 August 2015, 11.1 years ago.
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Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP0167364A1 | Cites | European Patent Office (EPO) | X | Search report | 1,3,7,10,12,16,17,19,21,25,28-35 |
| EP0190796A1 | Cites | European Patent Office (EPO) | A | Search report | 1-35 |
| US5054075A | Cites | United States of America | A | Search report | 1-35 |
111 members in 20 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 288413 | United States of America | – | |
| 28841394 | United States of America | A | |
| 04003180 | European Patent Office (EPO) | A | |
| 02009465 | European Patent Office (EPO) | A | |
| 95929372 | European Patent Office (EPO) | A |
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| EP0728350A1 | European Patent Office (EPO) | A1 | |
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| PT1233408E | Portugal | E | |
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| EP1530201A3This record | European Patent Office (EPO) | A3 | |
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Numbers
- Publication
- 1530201
- Application
- 50019389
Titles3
- German
- Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate
- English
- Method and apparatus for selecting an encoding rate in a variable rate vocoder
- French
- Procédé et appareil de sélection d'un taux de codage dans un vocodeur à taux variable
Classification
- CPC, 8
- G10L19/0208
- G10L19/24
- G10L19/02
- G10L19/0204
- G10L19/10
- G10L19/22
- G10L25/78
- G10L21/02
- IPC, 8
- G10L19 24
- G10L19 00
- G10L19 02
- G10L19 035
- G10L21 0208
- G10L25 18
- G10L25 78
- H03M7 30
Designated states17
- Contracting states, 17
- Austria
- Belgium
- Switzerland
- Germany
- Denmark
- Spain
- France
- United Kingdom
- Greece
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Portugal
- Sweden