ES8503902A1 - Synchronizing device for the useful signals of a common frequency broadcasting system. - Google Patents
Synchronizing device for the useful signals of a common frequency broadcasting system.Info
- Publication number
- ES8503902A1 ES8503902A1 ES530435A ES530435A ES8503902A1 ES 8503902 A1 ES8503902 A1 ES 8503902A1 ES 530435 A ES530435 A ES 530435A ES 530435 A ES530435 A ES 530435A ES 8503902 A1 ES8503902 A1 ES 8503902A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- intelligence
- synchronising
- synchronising signal
- radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
1. Synchronising equipment for intelligence signals of a common frequency broadcasting system, in which carrier oscillations of substantially equal frequency are radiatable by way of several transmitting stations each with a respective intelligence signal transmitter (Sn1), which from an exchange station (Z) and by way of modulation feeders (M1) receive the intelligence signals to be emitted synchronously, and are modulated by these intelligence signals for reception by intelligence signal receivers (En), with the following features : a) a common synchronising signal radio transmitter (Ss) for the repeated and automatic emission of a synchronising signal is associated with the transmitting stations (S1), b) a respective synchronising signal radio receiver (Es1) is co-ordinated with each of the transmitting stations (S1), c) the transmitting stations (S1) each display a respective trackable delay equipment (V3) for the intelligence signals as well as a store for the retention of the respectively tracked delay between successive tracking operations, d) the intelligence signal transmitters (Sn1) with trackable delay equipments (V3) are each associated with a respective transit time comparator (K) for the control of the delay equipment (V3) concerned in dependence on the transit time difference between the radio transmission on the one hand and the transmisson by way of a modulation feeder (M1) on the other hand, in such a manner that a largely synchronous intelligence signal radiation by these intelligence signal transmitters (Sn1) is made possible, characterized by the following features : e) the exchange (Z) is equipped with an equipment for the feeding-in of the synchronising signal on modulation feeders (M1), and namely for the feeding-in co-ordinated with the radio emission of the synchronising signal, f) the transmit time comparator (K) serves for the determination of the variable component of the transit time difference between the radio-received synchronising signal itself and the same synchronising signal transmitted by way of the modulation feeder (M1) to the transmitting stations (S1) concerned, g) the synchronising signal transmitter (Ss) and the synchronising signal receivers (Es1) operate on the operating frequency of the common frequency broadcasting system for the transmission of the intelligence signals, wherein an intelligence signal receiver (En) can serve as synchronising signal receiver (Es1) and an intelligence signal transmitter (Sn1) can serve as synchronising signal transmitter (Ss), h) the synchronising signal emission and the feeding-in of the synchronising signal on modulation feeders (M1) takes place each time at a fixed time spacing before the beginning of certain, in particular each of the intelligence signal emissions, and i) a respective phase-synchronous, envelope-curve-modulated carrier oscillation train, the envelope curve of which serves in the transit time comparator (K) for the derivation of a coarse control signal and the carrier oscillation of which serves for the derivation of a fine control signal for the control of the delay equipment (V3) gets to the synchronising signal emission.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3308957 | 1983-03-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8503902A1 true ES8503902A1 (en) | 1985-03-16 |
ES530435A0 ES530435A0 (en) | 1985-03-16 |
Family
ID=6193355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES530435A Granted ES530435A0 (en) | 1983-03-12 | 1984-03-09 | SYNCHRONIZATION INSTALLATION FOR USEFUL SIGNALS OF A CONTINUOUS RADIO-WAVE SYSTEM |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0118710B1 (en) |
DE (1) | DE3460839D1 (en) |
ES (1) | ES530435A0 (en) |
PT (1) | PT78223B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI71452C (en) * | 1985-04-10 | 1986-12-19 | Arvo Mustonen | SYNKRONISERINGSFOERFARANDE FOER ETT LOKALT T EX RIKSOMFATTANDEPERSONSOEKARNAETS RADIOSAENDARE |
CH663126A5 (en) * | 1985-04-19 | 1987-11-13 | Koechler Erika Fa | METHOD FOR SYNCHRONIZING SEVERAL CLOCK-CONTROLLED TRANSMITTER RECEIVERS. |
DE4000538C1 (en) * | 1990-01-10 | 1991-03-21 | Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De | |
US5280629A (en) * | 1991-12-06 | 1994-01-18 | Motorola, Inc. | Technique for measuring channel delay |
FR3020225B1 (en) * | 2014-04-18 | 2016-04-01 | Tdf | RADIO DIFFUSION DEVICE SYNCHRONIZED BY FREQUENCY MODULATION |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3020176A1 (en) * | 1980-05-28 | 1981-12-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | METHOD AND ARRANGEMENT FOR SIMULTANEOUSLY SENDING MESSAGES ON SEVERAL SAME-WAVE TRANSMITTERS |
DE3022425A1 (en) * | 1980-06-14 | 1981-12-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | METHOD AND ARRANGEMENT FOR SIMULTANEOUSLY SENDING MESSAGES ON SEVERAL SAME-WAVE TRANSMITTERS |
DE3035679A1 (en) * | 1980-09-22 | 1982-05-06 | Siemens AG, 1000 Berlin und 8000 München | Fixed carrier wave transmission system - has several transmitters maintained in phase by regulator at central control station |
DE3133120A1 (en) * | 1981-08-21 | 1983-03-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | METHOD FOR AUTOMATICALLY DETERMINING RUNNING COMPENSATION IN A SAME-WAVE NETWORK |
-
1984
- 1984-01-31 EP EP84100933A patent/EP0118710B1/en not_active Expired
- 1984-01-31 DE DE8484100933T patent/DE3460839D1/en not_active Expired
- 1984-03-09 ES ES530435A patent/ES530435A0/en active Granted
- 1984-03-09 PT PT78223A patent/PT78223B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0118710B1 (en) | 1986-10-01 |
DE3460839D1 (en) | 1986-11-06 |
ES530435A0 (en) | 1985-03-16 |
PT78223B (en) | 1986-04-23 |
EP0118710A1 (en) | 1984-09-19 |
PT78223A (en) | 1984-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970303 |