MPEG system which decompresses and recompresses image data before storing image data in a memory and in accordance with a resolution of a display device

A method for processing an input MPEG coded datastream containing high definition image information, comprising the steps of:

• decompressing said MPEG coded datastream to produce decompressed MPEG information;
• data-reducing said decompressed information to produce data-reduced information, said data-reducing step including the step of recompressing said decompressed information;
• storing said data-reduced information in a memory;
• and
• displaying information derived from said memory with a display device having a predetermined image resolution;
• wherein
• the amount of data reduction produced by said data reducing step is determined in accordance with said resolution of said display device.

In a system for processing an MPEG coded input signal containing high definition image information, apparatus comprising:

• an MPEG compatible first signal processor for decoding said MPEG coded signal;
• a second signal processor responsive to a decoded signal from said first processor for providing a translated version of a decoded signal from said signal processor;
• a memory;
• and
• an adaptive interface network for conveying said translated signal to said memory, said interface having an input path for receiving said translated data, and an output path with an adaptive bit width for conveying said translated data to said memory.

In a system for processing high definition input image representative information, an MPEG compatible decoder comprising:

• an input network for receiving a datastream of compressed high definition image representative data;
• a decompressor for decompressing compressed data from said input network;
• a motion information processing network for processing decompressed data from said decompressor;
• a compressor for recompressing data processed by said motion processing network;
• a memory;
• an output image processor for processing data stored by said memory, said processor including a display device with a predetermined image resolution;
• and
• an adaptive interface network for conveying said recompressed data from said compressor to said memory, said interface having an input data path for receiving said recompressed data, and an output data path with an adaptive data bit width for conveying said recompressed data to said memory, wherein
• said output data path exhibits a data bit width determined in accordance with said resolution of said display device.

A method for processing input MPEG coded signal containing high definition image representative information comprising the steps of:

• decoding said MPEG coded signal to produce decoded MPEG data;
• translating said MPEG data to produce translated data;
• and
• storing said translated signal in a memory;
• displaying said stored signal on a display device having a predetermined resolution;
• wherein
• said storing step includes the further step of adaptively conveying said translated data to said memory via an input path for receiving said translated data, and an output path for conveying said translated data to said memory, said output path exhibiting a data bit width determined in accordance with said resolution of said display device.

A system for processing an input MPEG coded signal containing high definition image representative information, comprising the steps of:

• decompressing said input signal to produce a decompressed signal;
• processing said decompressed signal with respect to image motion to produce a translated signal, said processing step including the further step of re-compressing data;
• storing said re-compressed data in a memory;
• and
• displaying stored data on a display device;
• wherein
• said storing step further includes the step of adaptively conveying said re-compressed data to said memory via an input path for receiving said re-compressed data, and an output path for conveying said re-compressed data to said memory, said output path exhibiting an adaptive data bit width determined in accordance with said resolution of said display device .