Patent ID: 6864901
Filing Date: 2005-03-08
Classification: G06F

Abstract:
1. A real-time screen recording system to record the screen display data of a computer system, comprising: an event inspector to inspect event messages generated by operation system of said computer system and to record event data represented by said message; an event filter to receive said event data recorded by said event inspector, to filter out data irrelevant to changes or updates of screen display and to record data representing changed or updated regions of said screen display; a periodical extractor to periodically obtain current screen display data of said computer system and compare said data with that of a previously obtained screen to record data of updated regions of said screen display; a sporadic controller to adjust working frequency of said periodical extractor according to event generation rate of said event inspector and working frequency of said periodical extractor in recording updated region data of said screen display; and an updated region buffer to store data representing changed or updated regions of said screen display for further processing.