Patent ID: 8189115
Filing Date: 2012-05-29
Classification: H04N

Abstract:
1. An image device, comprising: a buffer for storing a number of pictures constituting two groups of pictures (GOPs) and stores at least one group of pictures (GOP) comprising decoded pictures; a controller to control the buffer to discard or store a GOP based on a number of pictures which are stored in the buffer in a predetermined manner, wherein the at least one GOP comprises a current GOP and a previous GOP; wherein the current GOP comprises a current picture which is currently being displayed, and the previous GOP comprises pictures which were decoded and displayed previous to the current GOP; wherein the controller determines a first number which is a sum of a number of pictures which are stored in the buffer and currently being displayed, and a number of pictures which are stored in the buffer and were previously displayed; wherein if the controller determines that the first number is equal to or greater than a second number of pictures that the buffer has previously stored, the controller controls the buffer to discard the previous GOP from the buffer and store a next GOP in the buffer; and wherein the next GOP comprises pictures to be displayed after the pictures in the current GOP.