Patent ID: 8421919
Filing Date: 2013-04-16
Classification: G06F,H04N

Abstract:
1. A caption display method applied in an embedded system of a digital television, the method comprising: receiving a first caption image file and a first color index table having a color quantity; storing the first caption image file and the first color index table; receiving a second caption image file and a second color index table; offset-processing the second caption image file according to the color quantity to provide an offset-processed second caption image file and storing the offset-processed second caption image file; address-shifting the second color index table according to the color quantity to provide an address-shifted second color index table and storing the address-shifted second color index table; and displaying the first caption image file and the offset-processed second caption image file according to the first color index table and the address-shifted second color index table, respectively, wherein the first caption image file and the offset-processed second caption image file are stored in a system memory of the embedded system, and the first and second color index tables are stored in a palette register of the embedded system.