DISPOSITIF DE PRODUCTION D'IMPULSIONS DE VERROUILLAGE D'UNE PORTE D'UN SIGNAL DE SYNCHRONISATION DE SOUS-PORTEUSE DE CHROMINANCE DE LARGEUR CONSTANTE

• Main Author: RONALD EUGENE FERNSLER ET THOMAS DALE YOST
• Format: Patent
• Language: French
• Published: 16.08.1991
• Edition: 4
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

A keying pulse generator for a color television burst gate provides a gating pulse in response to horizontal synchronizing pulses when present and in response to horizontal retrace pulses when sync pulses are absent. A timing circuit is provided to maintain a constant width keying pulse independent...