Method for selecting a broadcast programme
Abstract
When RDS program call in known mobile receivers, the data contained in the station memory are transferred to a working memory and all alternative frequencies are tuned and evaluated for a short time. If the same PI code is not detected at any of the alternative frequencies, a search is started for the same program chain. In stored individual stations or programs with only a few and poorly receivable alternative frequencies, a search is often started in this way, although a short time later good reception conditions are present. The object of the invention is therefore to specify a retrieval strategy in which an unnecessary search is suppressed. This problem is solved by assigning to the program call, when checking the alternative frequencies contained in the station memory, each frequency a rank that depends on the reception quality. The reception quality is checked according to the RDS quality and the RF reception quality, such as multipath reception, reception field strength, and transmitter center. If no frequency with sufficient RDS quality is found, the frequency with the highest field strength and detected RDS signal radiation is set, provided that sufficient quality of hearing is determined from the RF reception quality. The frequency thus set remains set for a predetermined time. Only if no RDS identification was possible during this time will a search within the desired program chain be started.
Term
Term ended
Projected expiry passed 14 February 2011, 15.6 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0179394A2 | Cites | European Patent Office (EPO) | A | Search report |
| EP0333194A2 | Cites | European Patent Office (EPO) | AD | Search report |
| PATENT ABSTRACTS OF JAPAN; vol. 13, no. 270 (E-776)21. Juni 1989,;& JP-A-1 060 115 ( FUJITSU ) 7. März 1989 | Non-patent | – | – | Search report |
2 priority claims, no other members on record
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 4004987 | Germany | – | |
| 4004987 | Germany | A |
32 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 | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Expiry of rightR071 | R071 | 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 | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Transmission of propertyTP | TP | FR | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)732E | 732E | GB | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)732E | 732E | GB | |
| Transmission of propertyTP | TP | FR | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| Transmission of propertyTP | TP | FR | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)732E | 732E | GB | |
| 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 | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| Gb: translation of ep patent filed (gb section 77(6)(a)/1977)GBT | GBT | EP | |
| Party data changed (patent owner data changed or rights of a patent transferred)RAP2 | RAP2 | EP | |
| Designated contracting statesAK | AK | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | 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
- 0443436
- Application
- 911020782
Titles3
- German
- Verfahren zum Aufruf eines Rundfunkprogrammes
- English
- Method for selecting a broadcast programme
- French
- Procédé d'appel sélectif d'un programme de radiodiffusion
Classification
- CPC, 3
- H04H20/22
- H04H60/37
- H04H2201/13
- IPC, 4
- H03J1 00
- H04H20 00
- H04H20 26
- H04H60 37
Designated states1
- Contracting states, 1
- Italy