FR2349250A1 - Circuit formant filtre en peigne - Google Patents
Circuit formant filtre en peigneInfo
- Publication number
- FR2349250A1 FR2349250A1 FR7711625A FR7711625A FR2349250A1 FR 2349250 A1 FR2349250 A1 FR 2349250A1 FR 7711625 A FR7711625 A FR 7711625A FR 7711625 A FR7711625 A FR 7711625A FR 2349250 A1 FR2349250 A1 FR 2349250A1
- Authority
- FR
- France
- Prior art keywords
- comb filter
- forming circuit
- filter forming
- comb
- circuit
- 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
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)
- Filters That Use Time-Delay Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67839476A | 1976-04-19 | 1976-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2349250A1 true FR2349250A1 (fr) | 1977-11-18 |
FR2349250B1 FR2349250B1 (fr) | 1982-11-19 |
Family
ID=24722596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7711625A Granted FR2349250A1 (fr) | 1976-04-19 | 1977-04-18 | Circuit formant filtre en peigne |
Country Status (6)
Country | Link |
---|---|
US (1) | US4143397A (fr) |
JP (1) | JPS52127715A (fr) |
DE (1) | DE2717253C3 (fr) |
FR (1) | FR2349250A1 (fr) |
GB (1) | GB1576551A (fr) |
IT (1) | IT1078036B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2411529A1 (fr) * | 1977-12-12 | 1979-07-06 | Rca Corp | Circuit de suppression de la contamination des signaux de chrominance par des signaux de luminance dans un systeme de traitement de signaux video |
FR2444387A1 (fr) * | 1978-12-15 | 1980-07-11 | Itt | Recepteur de television couleur comprenant au moins un circuit integre pour le signal de luminance et les signaux de chrominance |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55121735A (en) * | 1979-03-12 | 1980-09-19 | Matsushita Electric Ind Co Ltd | Comb-line filter |
US4223339A (en) * | 1979-05-11 | 1980-09-16 | Rca Corporation | Video image vertical detail restoration and enhancement |
US4245237A (en) * | 1979-05-11 | 1981-01-13 | Rca Corporation | Controllable non-linear processing of video signals |
GB2049347B (en) * | 1979-05-11 | 1983-04-27 | Rca Corp | Video signal processing circuit having a nonlinear transfer function |
US4445152A (en) * | 1980-09-02 | 1984-04-24 | Karlock James A | Video detail enhancing circuit |
US4402006A (en) * | 1981-02-23 | 1983-08-30 | Karlock James A | Image enhancer apparatus |
JPS57160288A (en) * | 1981-03-30 | 1982-10-02 | Sony Corp | Processing circuit for chrominance signal |
US4365266A (en) * | 1981-04-20 | 1982-12-21 | Rca Corporation | Horizontal and vertical image detail processing of a color television signal |
JPS5883487A (ja) * | 1981-11-13 | 1983-05-19 | Sony Corp | テレビジヨン受像機 |
DE3314291C1 (de) * | 1983-04-20 | 1984-08-16 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Farbsignaltrennschaltung zur Rückgewinnung der beiden farbträgerfrequenten Farbsignalkomponenten mit einer Anordnung zur Amplitudeneinstellung des Farbsynchronsignals |
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 |
US4651196A (en) * | 1985-03-19 | 1987-03-17 | Rca Corporation | Adaptive control of the chrominance signal frequency response in a video signal processing system |
US4684976A (en) * | 1985-04-18 | 1987-08-04 | Mitsubishi Denki Kabushiki Kaisha | Feedback comb-type filter |
JPS641393A (en) * | 1987-06-23 | 1989-01-05 | Victor Co Of Japan Ltd | Voltage control type comb-line filter |
JP2690991B2 (ja) * | 1989-01-13 | 1997-12-17 | 株式会社日立製作所 | Y/c分離回路 |
JPH06284441A (ja) * | 1993-03-30 | 1994-10-07 | Toshiba Corp | クシ型フィルタ回路 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798353A (en) * | 1970-10-31 | 1974-03-19 | Fernseh Gmbh | Correcting vertical resolution in television color images |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2263678B2 (de) * | 1971-12-27 | 1976-04-29 | Hitachi, Ltd., Tokio | Schaltung zur auftrennung des ntsc-farbfernsehsignals |
JPS5412173B2 (fr) * | 1973-10-31 | 1979-05-21 | ||
JPS5416835B2 (fr) * | 1973-10-31 | 1979-06-25 |
-
1977
- 1977-03-17 US US05/778,594 patent/US4143397A/en not_active Expired - Lifetime
- 1977-04-07 IT IT22255/77A patent/IT1078036B/it active
- 1977-04-18 GB GB15965/77A patent/GB1576551A/en not_active Expired
- 1977-04-18 JP JP4506277A patent/JPS52127715A/ja active Granted
- 1977-04-18 FR FR7711625A patent/FR2349250A1/fr active Granted
- 1977-04-19 DE DE2717253A patent/DE2717253C3/de not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798353A (en) * | 1970-10-31 | 1974-03-19 | Fernseh Gmbh | Correcting vertical resolution in television color images |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2411529A1 (fr) * | 1977-12-12 | 1979-07-06 | Rca Corp | Circuit de suppression de la contamination des signaux de chrominance par des signaux de luminance dans un systeme de traitement de signaux video |
FR2444387A1 (fr) * | 1978-12-15 | 1980-07-11 | Itt | Recepteur de television couleur comprenant au moins un circuit integre pour le signal de luminance et les signaux de chrominance |
USRE32188E (en) * | 1978-12-15 | 1986-06-17 | Itt Industries, Inc. | Color television receiver comprising at least one integrated circuit for the luminance signal and the chrominance signals |
Also Published As
Publication number | Publication date |
---|---|
DE2717253B2 (de) | 1979-09-06 |
IT1078036B (it) | 1985-05-08 |
JPS52127715A (en) | 1977-10-26 |
GB1576551A (en) | 1980-10-08 |
FR2349250B1 (fr) | 1982-11-19 |
JPS628994B2 (fr) | 1987-02-25 |
US4143397A (en) | 1979-03-06 |
DE2717253C3 (de) | 1980-05-14 |
DE2717253A1 (de) | 1977-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |