Carrier chrominance signal processing circuit

DETAILED DESCRIPTION Accordingly, a general object of the present invention is to provide a novel and useful carrier signal processing circuit in which the above disadvantages are eliminated.
A more specific object of the present invention is to provide a carrier signal processing circuit capable of steepening the carrier chrominance signal to thereby obtain sharp pictures.
The above objects of the present invention are achieved by a carrier chrominance signal processing circuit including first through fourth circuits.
The first circuit detects an edge of color in an input carrier chrominance signal.
The second circuit holds color information on the carrier chrominance signal in a vicinity of the edge of color.
The third circuit produces a control signal having a predetermined pulse width in response to the detected edge of color.
The fourth circuit selects a held color information when the control signal is produced, and selects the carrier chrominance signal when no control signal is produced, so that a steepened carrier chrominance signal is outputted from the fourth circuit.
Other objects, features and advantages of the present invention will become apparent from the following detailed description when read in conjunction with the accompanying drawings.