Patent ID: 6453115
Filing Date: 2002-09-17
Classification: G11B,H04N

Abstract:
A digital video recording system for storing, retrieving, and displaying compressed digital video data, comprising:a video stream buffer system that receives a stream of digital video data comprising intra-coded reference frames and predictive-coded reference frames; a storage subsystem that is logically organized into a plurality of logical block addresses that identify sectors of the storage system; a storage controller that stores the stream of digital video data into the storage subsystem, wherein the storage controller identifies a start of the intra-coded reference frames and generates an index data structure in the storage subsystem that provides data indicative of the location of at least some of the intra-coded reference frames stored in the storage subsystem wherein the data in the index data structure indicates the logical block address of the start of the intra-coded reference frame and the offset from the beginning of the intra-coded reference frame and the beginning of the corresponding logical block address; and a display controller that accesses the index data structure and the video stream in the storage subsystem to display the video stream in a TrickPlay mode, wherein the storage subsystem is integrated into the system such that the storage subsystem is simultaneously logically coupled to both the storage controller and the display controller.