Patent ID: 7391477
Filing Date: 2008-06-24
Classification: H04N

Abstract:
1. An apparatus for processing a video signal, comprising: a receiving unit which receives a broadcast signal; a recovery processing unit which recovers a video signal from the broadcast signal received by the receiving unit; a first contour correction unit which performs contour correction processing on the video signal recovered by the recovery processing unit; a first delay unit which delays the video signal recovered by the recovery processing unit by the time required for the contour correction processing performed by the first contour correction unit; a first adder unit which adds an output signal from the first delay unit to an output signal from the first contour correction unit; a nonlinear processing unit which performs nonlinear processing on an output signal from the first adder unit; a separation unit which separates a signal component with not more than a prescribed amplitude level from a contour component of the video signal recovered by the recovery processing unit; a second contour correction unit which performs contour correction processing on a signal with not more than the prescribed amplitude level separated by the separation unit; a second delay unit which delays an output signal from the second contour correction unit by the time required for the nonlinear processing performed by the nonlinear processing unit; and a second adder unit which adds an output signal from the second delay unit to an output signal from the nonlinear processing unit.