Circuit for correcting the distortion of read signals from a PCM transmission apparatus, particularly from a digital audio disc
Patent Abstract / Summary
Bei einer PCM-Übertragungseinrichtung werden erfindungsgemäß gestörte Abtastwerte durch eine derart gewichtete Kombination des nächstfolgenden ungestörten Abtastwertes mit dem vorhergehenden Abtastwert ersetzt, daß eine annähernd lineare Interpolation erreicht ist.
IPC Classifications
Priority Claims
Designated Contracting States (11 EPC States)
Austria
(AT)
Belgium
(BE)
Switzerland
(CH)
Germany
(DE)
France
(FR)
United Kingdom
(GB)
Italy
(IT)
Liechtenstein
(LI)
Luxembourg
(LU)
Netherlands
(NL)
Sweden
(SE)
Parties & Representation
Applicants
TELEFUNKEN Fernseh und Rundfunk GmbH
Göttinger Chaussee 76, 30453 Hannover
DELicentia Patent-Verwaltungs-GmbH
Theodor-Stern-Kai 1, D-60596 Frankfurt
DEInventors (1)
Scholz, Werner, Dipl.-Ing.
Osterstrasse 20, D-3007 Gehrden
DERepresentatives / Agents
Einsel, Robert
TELEFUNKEN Fernseh und Rundfunk GmbH Göttinger Chaussee 76, 30453 Hannover
DEEinsel, Robert, Dipl.-Ing.
TELEFUNKEN Fernseh und Rundfunk GmbH Göttinger Chaussee 76, D-30453 Hannover
DEKey Procedural Dates
Patent Oppositions
Official opposition proceedings filed against European Patent EP0044963 under EPC Article 99.
Siemens Aktiengesellschaft
Wittelsbacherplatz 2, DE
—
1985-07-17
Siemens AG
Postfach 22 16 34, DE
—
1985-07-17
Legal Status & Event History
Official European Patent Office legal and procedural status changes recorded for this file.
| Date | Code | Event Description | Auth |
|---|---|---|---|
| 1984-12-07 | ET | FR: TRANSLATION FILED | EP |
| 1987-05-18 | NLR2 | NL: DECISION OF OPPOSITION | EP |
| 1991-07-31 | ITTA | IT: LAST PAID ANNUAL FEE | EP |
| 1994-10-03 | EPTA | LU: LAST PAID ANNUAL FEE | EP |
| 1982-02-03 | AK | DESIGNATED CONTRACTING STATES | EP |
| 1984-10-17 | AK | DESIGNATED CONTRACTING STATES | EP |
| 1982-05-12 | 17P | REQUEST FOR EXAMINATION FILED | EP |
| 1984-02-02 | ITF | IT: TRANSLATION FOR A EP PATENT FILED | EP |
| 1984-10-17 | REF | CORRESPONDS TO: | EP |
| 1984-11-22 | REF | CORRESPONDS TO: | EP |
| 1986-03-14 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 1991-10-14 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 1995-01-31 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2001-07-25 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2001-07-31 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 1985-09-18 | 26 | OPPOSITION FILED | EP |
| 1986-01-02 | NLR1 | NL: OPPOSITION HAS BEEN FILED WITH THE EPO | EP |
| 1986-02-19 | RAP2 | PARTY DATA CHANGED (PATENT OWNER DATA CHANGED OR RIGHTS OF A PATENT TRANSFERRED) | EP |
| 1986-09-16 | NLS | NL: ASSIGNMENTS OF EP-PATENTS | EP |
| 1987-05-06 | 27O | OPPOSITION REJECTED | EP |
| 1995-01-31 | EAL | SE: EUROPEAN PATENT IN FORCE IN SWEDEN | EP |
| 1995-06-16 | NLT1 | NL: MODIFICATIONS OF NAMES REGISTERED IN VIRTUE OF DOCUMENTS PRESENTED TO THE PATENT OFFICE PURSUANT TO ART. 16 A, PARAGRAPH 1 | EP |
| 2001-09-03 | NLV7 | NL: CEASED DUE TO REACHING THE MAXIMUM LIFETIME OF A PATENT | EP |
| 2001-09-10 | EUG | SE: EUROPEAN PATENT HAS LAPSED | EP |
| 1984-12-31 | BECH | BE: CHANGE OF HOLDER | EP |
| 2001-01-01 | BE20 | BE: PATENT EXPIRED | EP |
| 2001-07-02 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2001-07-01 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2001-07-30 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2000-07-19 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2000-07-21 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2001-01-11 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2000-06-08 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2000-07-24 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2000-07-18 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2000-07-20 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 1984-08-17 | GRAA | (EXPECTED) GRANT | EP |
| 1981-12-04 | PUAI | PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE | EP |
| 1987-03-19 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 1987-03-19 | PLBN | OPPOSITION REJECTED | EP |
| 1985-07-19 | PLBI | OPPOSITION FILED | EP |
Patent & Non-Patent Citations
Cited documents and prior art referenced in search and examination reports.
Cited Patent Documents
Non-Patent Scientific Literature (NPL)
Worldwide Patent Family
Related applications and patents in the same INPADOC worldwide family.
| Country | Publication Number | Kind | Publication Date | Action |
|---|---|---|---|---|
| EP | EP0044963A1 | A1 | 1982-02-03 | Espacenet |
| EP | EP0044963B1 | B1 | 1984-10-17 | Espacenet |
| AT | ATE9933T1 | T1 | 1984-11-15 | Espacenet |
| DE | DE3028066A1 | A1 | 1982-02-18 | Espacenet |
| DE | DE3166703D1 | D1 | 1984-11-22 | Espacenet |
| JP | JPS5758425A | A | 1982-04-08 | Espacenet |
| JP | JPH0368578B2 | B2 | 1991-10-29 | Espacenet |
| US | US4430736A | A | 1984-02-07 | Espacenet |
Complete European Patent Register Dossier (148 Total Documents)
The full inspection file for Application EP81105126 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.
Recorded Filings & Patent Specifications
Official publication specifications, opposition filings, proprietor replies, and procedural submissions.