FI66105C - Krets foer undertryckande av stoerningar i luminanssignal av faerg-tv - Google Patents
Krets foer undertryckande av stoerningar i luminanssignal av faerg-tv Download PDFInfo
- Publication number
- FI66105C FI66105C FI783734A FI783734A FI66105C FI 66105 C FI66105 C FI 66105C FI 783734 A FI783734 A FI 783734A FI 783734 A FI783734 A FI 783734A FI 66105 C FI66105 C FI 66105C
- Authority
- FI
- Finland
- Prior art keywords
- signal
- chrominance
- detector
- circuit according
- signals
- Prior art date
Links
- 230000003111 delayed effect Effects 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 14
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 9
- 230000002238 attenuated effect Effects 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 4
- 239000013641 positive control Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000002301 combined effect Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
- H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/859,922 US4167021A (en) | 1977-12-12 | 1977-12-12 | Suppression of chrominance signal contamination of the luminance signal in a video signal processing system |
| US85992277 | 1977-12-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI783734A FI783734A (fi) | 1979-06-13 |
| FI66105B FI66105B (fi) | 1984-04-30 |
| FI66105C true FI66105C (fi) | 1984-08-10 |
Family
ID=25332060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI783734A FI66105C (fi) | 1977-12-12 | 1978-12-05 | Krets foer undertryckande av stoerningar i luminanssignal av faerg-tv |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4167021A (xx) |
| JP (1) | JPS5493920A (xx) |
| AT (1) | AT384336B (xx) |
| AU (1) | AU521444B2 (xx) |
| BE (1) | BE872664A (xx) |
| CA (1) | CA1110760A (xx) |
| DE (1) | DE2853611C2 (xx) |
| ES (1) | ES475928A1 (xx) |
| FI (1) | FI66105C (xx) |
| FR (1) | FR2411530A1 (xx) |
| GB (1) | GB2010045B (xx) |
| IT (1) | IT1192298B (xx) |
| NL (1) | NL7812050A (xx) |
| NZ (1) | NZ189144A (xx) |
| SE (1) | SE438937B (xx) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7803910A (nl) * | 1978-04-13 | 1979-10-16 | Philips Nv | Kamfilterschakeling. |
| DE3119653C2 (de) * | 1981-05-16 | 1985-05-09 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Verfahren zur dynamischen Cross-Color-Unterdrückung, vorzugsweise in Codern von Farbfernsehsignalquellen |
| US4506293A (en) * | 1981-07-16 | 1985-03-19 | Rca Corporation | Independent fleshtone contours |
| GB2127250B (en) * | 1982-09-20 | 1986-04-09 | British Broadcasting Corp | Colour video signal processing |
| US4626894A (en) * | 1984-10-04 | 1986-12-02 | Rca Corporation | Signal filtering system having adaptively cascaded filter stages for developing a variable bandwidth frequency characteristic |
| US4636842A (en) * | 1984-11-29 | 1987-01-13 | Rca Corporation | Comb filter "hanging dot" eliminator |
| US4651196A (en) * | 1985-03-19 | 1987-03-17 | Rca Corporation | Adaptive control of the chrominance signal frequency response in a video signal processing system |
| US4616254A (en) * | 1985-04-18 | 1986-10-07 | Rca Corporation | Hanging dot reduction system |
| US4644387A (en) * | 1985-04-25 | 1987-02-17 | Rca Corporation | Plural input television receiver having peaking circuit and chrominance band reject filter in a video signal channel |
| US4689663A (en) * | 1985-09-27 | 1987-08-25 | Rca Corporation | Television receiver with display driver amplifier and input video filter having inversely related bandwidths |
| US4694331A (en) * | 1985-10-01 | 1987-09-15 | Rca Corporation | Vertical transition processor for a comb filter |
| JP2534747B2 (ja) * | 1988-03-16 | 1996-09-18 | 株式会社日立製作所 | Ｙ／ｃ分離回路 |
| US5473390A (en) * | 1995-01-31 | 1995-12-05 | Thomson Consumer Electronics, Inc. | Component to composite video signal converter circuit |
| US7065140B1 (en) * | 1999-10-06 | 2006-06-20 | Fairchild Semiconductor Corporation | Method and apparatus for receiving video signals from a plurality of video cameras |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1908897B1 (de) * | 1969-02-22 | 1970-07-02 | Fernseh Gmbh | Steuerschaltung zur Beseitigung von Bildfehlern im Farbfernsehbild |
| DE2263678B2 (de) * | 1971-12-27 | 1976-04-29 | Hitachi, Ltd., Tokio | Schaltung zur auftrennung des ntsc-farbfernsehsignals |
| US3778543A (en) * | 1972-09-05 | 1973-12-11 | Ellanin Investments | Predictive-retrospective method for bandwidth improvement |
| JPS5412173B2 (xx) * | 1973-10-31 | 1979-05-21 | ||
| US3924266A (en) * | 1974-08-30 | 1975-12-02 | Rca Corp | Automatic luminance channel bandwidth control apparatus responsive to the amplitude of color image information |
| US3919714A (en) * | 1974-10-21 | 1975-11-11 | Rca Corp | Automatic peaking apparatus |
| JPS5173335A (ja) * | 1974-12-20 | 1976-06-25 | Matsushita Electric Ind Co Ltd | Karaaterebijonjuzoki |
| US4030121A (en) * | 1975-12-02 | 1977-06-14 | Faroudja Y C | Video crispener |
-
1977
- 1977-12-12 US US05/859,922 patent/US4167021A/en not_active Expired - Lifetime
-
1978
- 1978-12-05 FI FI783734A patent/FI66105C/fi not_active IP Right Cessation
- 1978-12-05 CA CA317,413A patent/CA1110760A/en not_active Expired
- 1978-12-05 SE SE7812515A patent/SE438937B/sv not_active IP Right Cessation
- 1978-12-06 AU AU42240/78A patent/AU521444B2/en not_active Expired
- 1978-12-06 GB GB7847343A patent/GB2010045B/en not_active Expired
- 1978-12-08 FR FR7834632A patent/FR2411530A1/fr active Granted
- 1978-12-11 IT IT30707/78A patent/IT1192298B/it active
- 1978-12-11 BE BE192245A patent/BE872664A/xx not_active IP Right Cessation
- 1978-12-11 NZ NZ189144A patent/NZ189144A/xx unknown
- 1978-12-11 NL NL7812050A patent/NL7812050A/xx not_active Application Discontinuation
- 1978-12-11 JP JP15360578A patent/JPS5493920A/ja active Pending
- 1978-12-12 ES ES475928A patent/ES475928A1/es not_active Expired
- 1978-12-12 AT AT0885478A patent/AT384336B/de not_active IP Right Cessation
- 1978-12-12 DE DE2853611A patent/DE2853611C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU521444B2 (en) | 1982-04-01 |
| AT384336B (de) | 1987-10-27 |
| DE2853611C2 (de) | 1982-05-19 |
| FR2411530B1 (xx) | 1983-11-10 |
| ATA885478A (de) | 1987-03-15 |
| DE2853611A1 (de) | 1979-06-13 |
| JPS5493920A (en) | 1979-07-25 |
| ES475928A1 (es) | 1979-04-16 |
| CA1110760A (en) | 1981-10-13 |
| AU4224078A (en) | 1979-06-21 |
| SE438937B (sv) | 1985-05-13 |
| FI66105B (fi) | 1984-04-30 |
| FR2411530A1 (fr) | 1979-07-06 |
| NL7812050A (nl) | 1979-06-14 |
| GB2010045A (en) | 1979-06-20 |
| IT7830707A0 (it) | 1978-12-11 |
| NZ189144A (en) | 1982-08-17 |
| IT1192298B (it) | 1988-03-31 |
| FI783734A (fi) | 1979-06-13 |
| GB2010045B (en) | 1982-06-30 |
| BE872664A (fr) | 1979-03-30 |
| SE7812515L (sv) | 1979-06-13 |
| US4167021A (en) | 1979-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: RCA CORPORATION |