CA1171521A - Method and apparatus for one line dropout compensation of color television signals - Google Patents
Method and apparatus for one line dropout compensation of color television signalsInfo
- Publication number
- CA1171521A CA1171521A CA000372310A CA372310A CA1171521A CA 1171521 A CA1171521 A CA 1171521A CA 000372310 A CA000372310 A CA 000372310A CA 372310 A CA372310 A CA 372310A CA 1171521 A CA1171521 A CA 1171521A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- color television
- television signal
- delay
- luminance
- 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
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000003111 delayed effect Effects 0.000 claims abstract description 70
- 239000002131 composite material Substances 0.000 claims abstract description 68
- 230000015654 memory Effects 0.000 claims abstract description 62
- 239000000306 component Substances 0.000 claims description 251
- 238000005070 sampling Methods 0.000 claims description 35
- 230000001934 delay Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims 5
- 238000010168 coupling process Methods 0.000 claims 5
- 238000005859 coupling reaction Methods 0.000 claims 5
- 238000001514 detection method Methods 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 3
- 230000000063 preceeding effect Effects 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 10
- 235000019557 luminance Nutrition 0.000 description 109
- 238000010586 diagram Methods 0.000 description 37
- 238000006073 displacement reaction Methods 0.000 description 25
- 230000000875 corresponding effect Effects 0.000 description 24
- 230000010363 phase shift Effects 0.000 description 12
- 238000012545 processing Methods 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- BSFODEXXVBBYOC-UHFFFAOYSA-N 8-[4-(dimethylamino)butan-2-ylamino]quinolin-6-ol Chemical compound C1=CN=C2C(NC(CCN(C)C)C)=CC(O)=CC2=C1 BSFODEXXVBBYOC-UHFFFAOYSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 101150087426 Gnal gene Proteins 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/87—Regeneration of colour television signals
- H04N9/88—Signal drop-out compensation
- H04N9/882—Signal drop-out compensation the signal being a composite colour television signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/87—Regeneration of colour television signals
- H04N9/88—Signal drop-out compensation
- H04N9/888—Signal drop-out compensation for signals recorded by pulse code modulation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13304280A | 1980-03-24 | 1980-03-24 | |
| US133,042 | 1980-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1171521A true CA1171521A (en) | 1984-07-24 |
Family
ID=22456756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000372310A Expired CA1171521A (en) | 1980-03-24 | 1981-03-04 | Method and apparatus for one line dropout compensation of color television signals |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS56149190A (de) |
| CA (1) | CA1171521A (de) |
| DE (1) | DE3111334C2 (de) |
| FR (1) | FR2478924B1 (de) |
| GB (1) | GB2072457B (de) |
| HK (1) | HK26686A (de) |
| IT (1) | IT1144484B (de) |
| NL (1) | NL8101437A (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836087A (ja) * | 1981-08-27 | 1983-03-02 | Matsushita Electric Ind Co Ltd | ドロツプアウト補償装置 |
| JPH01236743A (ja) * | 1988-03-17 | 1989-09-21 | Hitachi Ltd | 補間装置 |
| JPH0498987A (ja) * | 1990-08-16 | 1992-03-31 | Matsushita Electric Ind Co Ltd | 誤り修整方法 |
| GB2250395A (en) * | 1990-11-27 | 1992-06-03 | Ferguson Ltd | Reducing visibility of impulsive interference in television satellite recievers |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3586762A (en) * | 1969-02-03 | 1971-06-22 | Minnesota Mining & Mfg | Dropout compensator for pal color television |
| US3679814A (en) * | 1970-02-16 | 1972-07-25 | Minnesota Mining & Mfg | Dropout compensator for color television |
| GB1436757A (en) * | 1973-09-11 | 1976-05-26 | Quantel Ltd | Drop out compensation system |
| US3952326A (en) * | 1974-09-19 | 1976-04-20 | Basf Aktiengesellschaft | Dropout compensator for a trisequential color video playback system |
| NL7506411A (nl) * | 1975-05-30 | 1976-12-02 | Philips Corp | Signaaluitvalkompensatie-inrichting. |
| GB2008888B (en) * | 1977-10-27 | 1982-06-30 | Quantel Ltd | Drop-out compensation system |
-
1981
- 1981-03-04 CA CA000372310A patent/CA1171521A/en not_active Expired
- 1981-03-23 DE DE3111334A patent/DE3111334C2/de not_active Expired
- 1981-03-23 NL NL8101437A patent/NL8101437A/nl not_active Application Discontinuation
- 1981-03-23 IT IT48079/81A patent/IT1144484B/it active
- 1981-03-23 FR FR8105730A patent/FR2478924B1/fr not_active Expired
- 1981-03-24 GB GB8109240A patent/GB2072457B/en not_active Expired
- 1981-03-24 JP JP4308581A patent/JPS56149190A/ja active Granted
-
1986
- 1986-04-10 HK HK266/86A patent/HK26686A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT8148079A0 (it) | 1981-03-23 |
| FR2478924A1 (fr) | 1981-09-25 |
| JPH0262997B2 (de) | 1990-12-27 |
| IT1144484B (it) | 1986-10-29 |
| DE3111334A1 (de) | 1982-01-14 |
| HK26686A (en) | 1986-04-18 |
| DE3111334C2 (de) | 1984-08-16 |
| FR2478924B1 (fr) | 1985-01-18 |
| GB2072457B (en) | 1984-02-08 |
| JPS56149190A (en) | 1981-11-18 |
| GB2072457A (en) | 1981-09-30 |
| NL8101437A (nl) | 1981-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |