EP1545030A3
Optical channel equalisation
Abstract
A communication system having a transmitter transmits an information signal over a communication media and a receiver coupled to the communication media receives the transmitted information signal. The receiver includes a continuous time filter having an adjustable bandwidth for linearly equalizing the transmitted information signal as a function of the adjustable bandwidth. A decision feedback equalizer coupled to the continuous time filter then reduces inter-symbol interference in the filtered information signal.

Term
Term ended
Projected expiry passed 9 November 2024, 1.9 years ago.
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- Projected expiry
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1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0213424A2 | Cites | World Intellectual Property Organization (WIPO) | A | Search report | 5-7 |
| EP0808046A2 | Cites | European Patent Office (EPO) | X | Search report | 1-10 |
| US5940441A | Cites | United States of America | A | Search report | 2-4,6-10 |
35 members in 5 offices
Priority claims16
| Document | Office | Kind | Date |
|---|---|---|---|
| 530968P | United States of America | – | |
| 53096803 | United States of America | P | |
| 531402P | United States of America | – | |
| 53140203 | United States of America | P | |
| 531403P | United States of America | – | |
| 53140303 | United States of America | P | |
| 774724 | United States of America | – | |
| 77472404 | United States of America | A | |
| 530968P | – | – | – |
| 531402P | – | – | – |
| 531403P | – | – | – |
| 774724 | – | – | – |
| US20030530968P | – | – | – |
| US20030531402P | – | – | – |
| US20030531403P | – | – | – |
| US20040774724 | – | – | – |
Members35
| Document | Office | Kind | |
|---|---|---|---|
| EP1545030A2 | European Patent Office (EPO) | A2 | |
| EP1545043A2 | European Patent Office (EPO) | A2 | |
| EP1545044A2 | European Patent Office (EPO) | A2 | |
| EP1545045A2 | European Patent Office (EPO) | A2 | |
| US2005135470A1 | United States of America | A1 | |
| US2005135471A1 | United States of America | A1 | |
| US2005135475A1 | United States of America | A1 | |
| US2005135510A1 | United States of America | A1 | |
| CN1638366A | China | A | |
| CN1638367A | China | A | |
| CN1655483A | China | A | |
| CN1691655A | China | A | |
| TW200541235A | Taiwan Province of China | A | |
| TW200541279A | Taiwan Province of China | A | |
| EP1545045A3 | European Patent Office (EPO) | A3 | |
| EP1545043A3 | European Patent Office (EPO) | A3 | |
| EP1545044A3 | European Patent Office (EPO) | A3 | |
| TW200623777A | Taiwan Province of China | A | |
| TWI259667B | Taiwan Province of China | B | |
| TWI262686B | Taiwan Province of China | B | |
| TWI278208B | Taiwan Province of China | B | |
| US7330508B2 | United States of America | B2 | |
| EP1545030A3This record | European Patent Office (EPO) | A3 | |
| US7436882B2 | United States of America | B2 | |
| US7522847B2 | United States of America | B2 | |
| EP1545043B1 | European Patent Office (EPO) | B1 | |
| CN100496032C | China | C | |
| DE602004020859D1 | Germany | D1 | |
| CN1691655B | China | B | |
| US7822113B2 | United States of America | B2 | |
| EP1545044B1 | European Patent Office (EPO) | B1 | |
| DE602004032007D1 | Germany | D1 | |
| CN1638367B | China | B | |
| CN1655483B | China | B | |
| EP1545030B1 | European Patent Office (EPO) | B1 |
41 legal events, as 4 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | 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 | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | DE | |
| Notification of lapseLapsedST | ST | FR | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Transmission of propertyTP | TP | FR | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20171005 AND 20171011732E | 732E | GB | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | 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 | |
| Fee paymentPLFP | PLFP | FR | |
| Fee paymentPLFP | PLFP | FR | |
| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| Change of applicant/patenteeR081 | R081 | DE | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designation fees paidAKX | AKX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | 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
- 1545030
- Publication, DOCDB
- 1545030
- Publication, EPODOC
- EP1545030
- Application
- 4026611
- Application, DOCDB
- 04026611
- Application, EPODOC
- EP20040026611
Titles3
- German
- Optische Kanalentzerrung
- English
- Optical channel equalisation
- French
- Dispositif à égaliseur de voies optiques
Classification
- CPC, 4
- H04B10/66
- H04L25/03038
- H04L25/03057
- H04L2025/0349
- IPC, 5
- H04B10 158
- H04B10 18
- H04L7 02
- H04L7 033
- H04L25 03
Designated states35
- Contracting states, 29
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
- Portugal
and 5 moreShow fewer
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 6
- Albania
- Croatia
- Lithuania
- Latvia
- North Macedonia
- Yugoslavia, later Serbia and Montenegro (until 2006)