FR2369764A1 - Appareil de modification de signal de difference de couleur - Google Patents
Appareil de modification de signal de difference de couleurInfo
- Publication number
- FR2369764A1 FR2369764A1 FR7632638A FR7632638A FR2369764A1 FR 2369764 A1 FR2369764 A1 FR 2369764A1 FR 7632638 A FR7632638 A FR 7632638A FR 7632638 A FR7632638 A FR 7632638A FR 2369764 A1 FR2369764 A1 FR 2369764A1
- Authority
- FR
- France
- Prior art keywords
- signal
- luminance
- colour
- circuit generating
- uses 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
- H04N9/64—Circuits for processing colour signals
- H04N9/643—Hue control means, e.g. flesh tone control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
La présente invention concerne un appareil de modification de signal de différence de couleur. Cet appareil comprend un moyen de production de signal de seuil 15 qui est alimenté par un signal de luminance pour produire un signal de seuil proportionnel à ce signal de luminance, et un moyen de réduction de gain 16 qui est alimenté par le signal de différence de couleur en provenance du démodulateur de signal de différence de couleur 4 et par le moyen de production de signal de seuil 15 pour faire décroître une partie donnée du signal de différence de couleur qui dépasse le niveau du signal de seuil. La présente invention s'applique aux téléviseurs en couleurs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7632638A FR2369764A1 (fr) | 1976-10-28 | 1976-10-28 | Appareil de modification de signal de difference de couleur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7632638A FR2369764A1 (fr) | 1976-10-28 | 1976-10-28 | Appareil de modification de signal de difference de couleur |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2369764A1 true FR2369764A1 (fr) | 1978-05-26 |
FR2369764B1 FR2369764B1 (fr) | 1982-06-18 |
Family
ID=9179342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7632638A Granted FR2369764A1 (fr) | 1976-10-28 | 1976-10-28 | Appareil de modification de signal de difference de couleur |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2369764A1 (fr) |
-
1976
- 1976-10-28 FR FR7632638A patent/FR2369764A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2369764B1 (fr) | 1982-06-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1506988A (en) | Colour video signal recording and/or reproducing system | |
GB1414773A (en) | Hue control circuit for colour television receivers | |
JPS5448434A (en) | Recording and reproduction system for color tlelvision signal | |
JPS53111708A (en) | Vide signal reproducing circuit | |
GB1526517A (en) | Amplitude limiting circuit for frequency modulated video signals | |
GB1536215A (en) | Clamping circuits for television signals | |
GB1300781A (en) | Circuit arrangement for colour point adjustment | |
FR2369764A1 (fr) | Appareil de modification de signal de difference de couleur | |
JPS5514726A (en) | Magnetic recorder/reproducer | |
JPS54139333A (en) | Color television receiver | |
GB1512149A (en) | Colour television | |
GB1352772A (en) | Colour television signal reproducing system | |
JPS5583385A (en) | Automatic decision system for color signal | |
JPS5753193A (en) | Color amplitude control system | |
JPS5318332A (en) | Color television signal transmission system | |
JPS55645A (en) | Process system for color video signal | |
JPS56109088A (en) | Index color television receiver | |
DE3467282D1 (en) | Circuit for digitally encoding an analogous colour television signal | |
JPS5356923A (en) | Magnetic recording and reproducing system | |
JPS5447425A (en) | Picture recorder/reproducer | |
JPS5441016A (en) | Reproducing device of color video signal | |
JPS57140084A (en) | Recording system for plurality of channel of audio signal | |
JPS5553977A (en) | Buzz noise eliminating device for television picture receiver | |
JPS5745794A (en) | Color reproducing device | |
JPS5657372A (en) | Level control circuit for carrier chrominance signal |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |