Patent ID: 7298425

Claim:
A method for compressing video data in a computer system comprising: receiving a current video frame at a dedicated video input of a core logic chip in the computer system directly from a video source originating the video frame, the computer system including the core logic chip for directly coupling a processor to a system memory and for coupling the processor and the system memory to a system bus; computing at the core logic chip a difference frame from the current video frame and a previous video frame as the current video frame streams into the dedicated video input of the core logic chip, the previous video frame being received at the core logic chip as a previous current video frame and retained therein, the difference frame including computing the difference frame in the core logic chip within the computer system, wherein the core logic chip is a north bridge chip; storing the difference frame directly from the core logic chip to the system memory in the computer system via a dedicated memory interface therebetween; and the processor retrieving the difference frame directly from the system memory via the core logic chip using a dedicated processor interface therebetween to complete compression of the video data.