DE3735367A1 - Verfahren und einrichtung zur gewinnung von synchronisationssignalen in einem bild - Google Patents
Verfahren und einrichtung zur gewinnung von synchronisationssignalen in einem bildInfo
- Publication number
- DE3735367A1 DE3735367A1 DE19873735367 DE3735367A DE3735367A1 DE 3735367 A1 DE3735367 A1 DE 3735367A1 DE 19873735367 DE19873735367 DE 19873735367 DE 3735367 A DE3735367 A DE 3735367A DE 3735367 A1 DE3735367 A1 DE 3735367A1
- Authority
- DE
- Germany
- Prior art keywords
- image
- packets
- words
- change
- signal
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008859 change Effects 0.000 claims abstract description 42
- 230000000295 complement effect Effects 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000000605 extraction Methods 0.000 abstract description 4
- 230000004075 alteration Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
- H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
- H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
- H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
- H04N7/56—Synchronising systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8614448A FR2605479B1 (fr) | 1986-10-17 | 1986-10-17 | Systeme d'extraction de signaux de synchronisation en trame a partir de signaux de synchronisation de paquets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3735367A1 true DE3735367A1 (de) | 1988-04-21 |
| DE3735367C2 DE3735367C2 (cg-RX-API-DMAC7.html) | 1993-01-14 |
Family
ID=9339948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873735367 Granted DE3735367A1 (de) | 1986-10-17 | 1987-10-19 | Verfahren und einrichtung zur gewinnung von synchronisationssignalen in einem bild |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3735367A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2605479B1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB2196510B (cg-RX-API-DMAC7.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2652472B1 (fr) * | 1989-09-22 | 1992-01-03 | Sgs Thomson Microelectronics | Procede de synchronisation du recepteur d'un signal de television de type mac. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984002242A1 (en) * | 1982-12-02 | 1984-06-07 | Indep Broadcasting Authority | Apparatus for deriving synchronisation signals for component television video signal reception |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576947A (en) * | 1969-01-16 | 1971-05-04 | Us Navy | Rapid frame synchronism of serial binary data |
| JPS60214136A (ja) * | 1984-04-09 | 1985-10-26 | Fujitsu Ltd | フレ−ム同期回路 |
| GB2174567A (en) * | 1985-04-29 | 1986-11-05 | Philips Electronic Associated | Deriving frame interval signals |
-
1986
- 1986-10-17 FR FR8614448A patent/FR2605479B1/fr not_active Expired
-
1987
- 1987-10-19 GB GB8724420A patent/GB2196510B/en not_active Expired - Fee Related
- 1987-10-19 DE DE19873735367 patent/DE3735367A1/de active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984002242A1 (en) * | 1982-12-02 | 1984-06-07 | Indep Broadcasting Authority | Apparatus for deriving synchronisation signals for component television video signal reception |
Non-Patent Citations (1)
| Title |
|---|
| SpEcification du Système D2-MAC/Paguet, In: TElE-Diffusion de France Etablissement public de l'Etat, Septembre 1985, S.11,12,24 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3735367C2 (cg-RX-API-DMAC7.html) | 1993-01-14 |
| FR2605479A1 (fr) | 1988-04-22 |
| GB2196510A (en) | 1988-04-27 |
| FR2605479B1 (fr) | 1989-04-07 |
| GB8724420D0 (en) | 1987-11-25 |
| GB2196510B (en) | 1990-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |