Method and apparatus for storing an uninterrupted digital video stream

摘要

A method and apparatus for storing an uninterrupted digital video stream using a motion-sensitive memory system involve monitoring the acceleration experienced by the memory system and adjusting (78) the compression of the digital video stream when the acceleration of the memory system (38) requires that data writing be temporarily suspended. Uninterrupted digital video streams are captured and stored with a handheld digital video camera (32) that records compressed digital video data with an on-camera optical memory system that utilizes an optical disk, such as an 8 centimeter digital video disk (DVD). Compressed digital video data is written to the optical disk by a write head that has an acceleration threshold beyond which data writing is suspended because the acceleration causes data writing to be unreliable. When the acceleration threshold is exceeded, the compression of the digital video data is increased, so that the writing of data onto the optical disk has access to the total volume of generated digital video data when the writing operation resumes.