SE0201008D0 - A method and a system for synchronizing digital data streams - Google Patents
A method and a system for synchronizing digital data streamsInfo
- Publication number
- SE0201008D0 SE0201008D0 SE0201008A SE0201008A SE0201008D0 SE 0201008 D0 SE0201008 D0 SE 0201008D0 SE 0201008 A SE0201008 A SE 0201008A SE 0201008 A SE0201008 A SE 0201008A SE 0201008 D0 SE0201008 D0 SE 0201008D0
- Authority
- SE
- Sweden
- Prior art keywords
- clock
- frames
- timing reference
- pulse
- redundant system
- Prior art date
Links
- 230000001360 synchronised effect Effects 0.000 abstract 1
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The invention relates to a method and an arrangement to synchronise a primary system (4 (4*) or 24 (24*)) and at least one redundant system (5 (5*) or 25 (25*)), and to identify CLOCK-pulses in a time synchronisation line using data frames having a predetermined repetition time, for example 24 ms. Calculating is made of how many CLOCK-pulse cycles are needed until the pattern of frames and CLOCK-pulse cycle repeat itself. A timing reference cycle is set comprising the number n of calculated CLOCK-pulse cycles. The two systems are synchronised by:. Letting the redundant system (5 (5*) or 25 (25*)) ask the primary system (4 (4*) or 24 (24*)) to give information of when one of its frames enters a determined CLOCK-pulse cycle in its timing reference cycle; and after being provided with the asked information, the redundant system (5 (5*) or 25 (25*)) calculates the number of frames, which should pass before the next timing reference cycle appears, and calculates for the redundant system (5 (5*) or 25 (25*)) a frame counting that a "synch frame" should have in order to be the same as in the primary system.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0201008A SE0201008D0 (en) | 2002-04-03 | 2002-04-03 | A method and a system for synchronizing digital data streams |
| PCT/SE2003/000532 WO2003084118A1 (en) | 2002-04-03 | 2003-04-02 | A method and system for synchronising digital data streams in redundant multiplex systems |
| AU2003225448A AU2003225448A1 (en) | 2002-04-03 | 2003-04-02 | A method and system for synchronising digital data streams in redundant multiplex systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0201008A SE0201008D0 (en) | 2002-04-03 | 2002-04-03 | A method and a system for synchronizing digital data streams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE0201008D0 true SE0201008D0 (en) | 2002-04-03 |
Family
ID=20287473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0201008A SE0201008D0 (en) | 2002-04-03 | 2002-04-03 | A method and a system for synchronizing digital data streams |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2003225448A1 (en) |
| SE (1) | SE0201008D0 (en) |
| WO (1) | WO2003084118A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101382613B1 (en) * | 2007-06-20 | 2014-04-07 | 한국전자통신연구원 | Method of multiplexing transmission frame, apparatus of multiplexing transmission frame and transmission apparatus for digital broadcasting signal |
| KR100923574B1 (en) * | 2007-08-07 | 2009-10-27 | 한국전자통신연구원 | Digital multimedia broadcasting transmission system and method |
| FR2936919B1 (en) * | 2008-10-06 | 2013-01-11 | Enensys Technologies | DEVICE AND METHOD FOR FINE SYNCHRONIZATION OF DIFFERENT VERSIONS OF A RECEIVED DATA STREAM |
| WO2010062596A1 (en) * | 2008-10-28 | 2010-06-03 | Inlet Technologies | Stream synchronization for live video encoding |
| JP5949045B2 (en) * | 2012-03-28 | 2016-07-06 | 日本電気株式会社 | STS value synchronization method and ISDB-T broadcasting station system |
| US9843837B2 (en) | 2015-08-03 | 2017-12-12 | At&T Intellectual Property I, L.P. | Cross-platform analysis |
| DE102016213764B4 (en) * | 2016-07-27 | 2018-02-22 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method for transmitting a binary data signal via an optical feeder link to or from a satellite |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3229696A1 (en) * | 1982-08-10 | 1984-02-16 | ANT Nachrichtentechnik GmbH, 7150 Backnang | METHOD FOR THE SYNCHRONOUS TRANSFER OF FRAME-STRUCTURED DATA |
| JPS5997245A (en) * | 1982-11-26 | 1984-06-05 | Fujitsu Ltd | Synchronization method for duplex time division multiple access communication equipment |
| US4955020A (en) * | 1989-06-29 | 1990-09-04 | Infotron Systems Corporation | Bus architecture for digital communications |
| JP3487806B2 (en) * | 2000-05-17 | 2004-01-19 | 日本電気株式会社 | Dual AAL1 device and synchronization method used therefor |
| US7002934B2 (en) * | 2001-01-22 | 2006-02-21 | Unique Broadband Systems, Inc. | OFDM multiple upstream receiver network |
-
2002
- 2002-04-03 SE SE0201008A patent/SE0201008D0/en unknown
-
2003
- 2003-04-02 AU AU2003225448A patent/AU2003225448A1/en not_active Abandoned
- 2003-04-02 WO PCT/SE2003/000532 patent/WO2003084118A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003225448A1 (en) | 2003-10-13 |
| WO2003084118A1 (en) | 2003-10-09 |
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