Patent ID: 7589789
Filing Date: 2009-09-15
Classification: H04N

Abstract:
1. A video converting device of a digital TV comprising: a memory which stores an encoded bit stream, said memory being mapped according to a first video format conversion for processing the stored bit stream; a video decoder which reads and decodes the encoded bit stream from the memory, and stores a decoded bit stream back in the memory; a (V&C) video and conversion information detector which detects decoded mode conversion information, input conversion information, channel conversion information and format conversion information from the video decoder, said detected information being indicative of a need for remapping said memory based on a second video format conversion for processing the stored bit stream; a display processor which processes an input conversion or a format conversion or a mode conversion corresponding to the decoded conversion information detected by the (V&C) video and conversion information detector and maintains a predetermined video for a predetermined time period during which the remapping of said memory occurs, if conversion information is detected by the (V&C) video and conversion information detector; a pattern generator which generates a predetermined pattern; a video signal processing controller which outputs control signals to select the predetermined pattern generated by the pattern generator, if the decoded conversion information is detected and a display off is detected or if an existence of a video signal is not detected; and a video selector which selects the predetermined pattern generated by the pattern generator according to the control signal output from the video signal processing controller and displays the selected predetermined pattern for a predetermined time period during which the remapping of said memory occurs or until an existence of a video signal is detected.