Patent ID: 7218676
Filing Date: 2007-05-15
Classification: H04N

Abstract:
1. An MPEG video decoder for an MPEG bit stream which includes at least a sequence header, a first picture header immediately followed by first picture data, and a second picture header immediately followed by second picture data, wherein the first picture header, the second picture header, and the sequence header contain a first parameter, a second parameter, and a third parameter, respectively, the MPEG video decoder comprising: an image decoding section which decodes the MPEG bit stream; a frame memory which includes a first picture bank which stores first decoded picture data obtained by the image decoding section decoding the first picture data; a first parameter bank which is associated with the first picture bank and stores the first parameter and the third parameter obtained by the image decoding section from the first picture header and the sequence header, respectively; a second picture bank which stores second decoded picture data obtained by the image decoding section decoding the second picture data; and a second parameter bank which is associated with the second picture bank and stores the second parameter and the third parameter obtained by the image decoding section from the second picture header and the sequence header, respectively; a decode control section which controls the image decoding section; and a display control section which carries out a display control of the first decoded picture data stored in the first picture bank based on the first parameter and the third parameter stored in the first parameter bank, and carries out a display control of the second decoded picture data stored in the second picture bank based on the second parameter and the third parameter stored in the second parameter bank.