Patent ID: 6118818
Filing Date: 2000-09-12
Classification: H04N

Abstract:
A method for decoding MPEG standard video bit streams, the method comprising the steps of:receiving a video bit stream of an I (Intra-coded) picture and a video bit stream of a P (Predictive-coded) picture in succession and storing the received video bit streams in a first memory, each of the I picture and the P picture having an up portion and a down portion, and each of the up and down portions having a top field and a bottom field;decoding the stored up portion of the I picture and storing the decoded up portion of the I picture in a first region of a second memory;decoding the stored down portion of the I picture and storing the decoded down portion of the I picture in a second region of the second memory;simultaneously decoding the stored up portion of the P picture and displaying the top fields of the up and down portions of the I picture stored in the first and second regions of the second memory and storing the up portion of the P picture in a third region of the second memory; anddecoding the down portion of the P picture, waiting for display of the top fields of the up and down portions of the I picture and a predetermined number of scan lines of the bottom fields of the up and down portions of the I picture, and storing the decoded down portion of the P picture in the first region of the second memory.