发明名称 Memory management in event recording system
摘要 A vehicle event recorder is provided that includes a camera for capturing a video as discrete image frames, and that further includes a managed loop memory and a management system for generating a virtual 'timeline dilation' effect. To overcome size limits in the buffer memory of the video event recorder, the maximum time extension of a video series is increased by enabling a reduction in temporal resolution in exchange for an increase on the temporal extension. Memory cells are overwritten in an 'interleaved' fashion to produce a reduced frame rate for the recording of certain time periods connected to an event moment. In time periods furthest from the event movement, the resulting frame rate is minimized while in time periods closed to the event moment, the resulting frame rate is maximized.
申请公布号 GB2447184(A) 申请公布日期 2008.09.03
申请号 GB20080011334 申请日期 2006.12.07
申请人 SMARTDRIVE SYSTEMS INC 发明人 JAMES PLANTE
分类号 H04N7/18;G07C5/08;H04N5/907 主分类号 H04N7/18
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