Patent ID: 6348951
Filing Date: 2002-02-19
Classification: H04N

Abstract:
A caption display device for a digital TV, comprising:a video decoder unit for decoding an inputted MPEG II transport stream, and separately outputting a user data for caption and an MPEG II video data; an ATV caption command decoder unit for decoding the user data separated in the video decoder unit, and outputting a data including a caption command and a caption text; a user interactive control unit for sensing an interactive data inputted from the user; a caption control unit for outputting a caption text background control command in order to control a blending rate by using a user interactive signal outputted from the user interactive control unit; a blending unit for blending an ATV caption data separated in the ATV caption command decoder unit with the caption text background control command outputted from the caption control unit, and outputting a Muxing data; a video combining unit for combining and outputting the MPEG II video data separated in the video decoder unit and the Muxing data outputted from the blending unit; and a video data processing unit for processing and outputting a color blending according to a signal outputted from the video combining unit.