EP1973104A3
Method and apparatus for estimating noise by using harmonics of a voice signal
Abstract
Disclosed is a method and an apparatus for estimating noise included in a sound signal during sound signal processing. The method includes estimating harmonics components in a frame of an input sound signal; using the estimated harmonics components, computing a Voice Presence Probability (VPP) on the frame of the input sound signal; determining a weight of an equation necessary to estimate a noise spectrum, depending on the computed VPP; and using the determined weight and the equation necessary to estimate a noise spectrum, estimating the noise spectrum, and updating the noise spectrum.
Term
1.5 yearsto projected expiry
Projected expiry 20 March 2028, counted from filing; an application has no term until it is granted.
- Priority
- Filed
- Published
- Today
- Projected expiry
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP1059628A2 | Cites | European Patent Office (EPO) | X | Search report | 1-9 |
8 members in 4 offices; this record represents the family
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 20070028310 | Republic of Korea | – | |
| 20070028310 | Republic of Korea | A |
Members8
| Document | Office | Kind | |
|---|---|---|---|
| CN101271686A | China | A | |
| EP1973104A2 | European Patent Office (EPO) | A2 | |
| KR20080086298A | Republic of Korea | A | |
| US2008235013A1 | United States of America | A1 | |
| EP1973104A3This record | European Patent Office (EPO) | A3 | |
| KR101009854B1 | Republic of Korea | B1 | |
| US8135586B2 | United States of America | B2 | |
| EP1973104B1 | European Patent Office (EPO) | B1 |
33 legal events, as 4 offices reported them to INPADOC
Over the term
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|---|---|---|---|
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
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| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
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| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Designation fees paidAKX | AKX | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1973104
- Application
- 81530982
Titles3
- German
- Verfahren und Vorrichtung zur Rauschschätzung unter Verwendung von Harmonischen von Sprachsignalen
- English
- Method and apparatus for estimating noise by using harmonics of a voice signal
- French
- Procédé et appareil d'évaluation sonore en utilisant les harmoniques d'un signal vocal
Classification
- CPC, 4
- G10L21/0208
- G10L15/02
- G10L21/0216
- G10L15/20
- IPC, 2
- G10L21 02
- G10L21 0208
Designated states38
- Contracting states, 34
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Croatia
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Latvia
- Monaco
and 10 moreShow fewer
- Malta
- Netherlands (Kingdom of the)
- Norway
- Poland
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 4
- Albania
- Bosnia and Herzegovina
- North Macedonia
- Serbia