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MEMORY MANAGEMENT IN EVENT RECORDING SYSTEMS

  • US 20140098228A1
  • Filed: 01/04/2013
  • Published: 04/10/2014
  • Est. Priority Date: 12/08/2005
  • Status: Active Grant
First Claim
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1. A vehicle event recorder configured to be mounted in a vehicle, the vehicle event recorder comprising:

  • a video camera having a field-of-view that includes an environment about the vehicle, the video camera configured to acquire consecutive frames of visual information representing the environment about the vehicle;

    a buffer memory configured to electronically store information;

    one or more sensors configured to generate output signals conveying information related to vehicle events; and

    a controller configured to;

    effectuate storage of the consecutive frames of visual information in the buffer memory with a first frame storage density;

    detect vehicle events based on the output signals; and

    responsive to detecting a vehicle event, designate individual frames of visual information stored in the buffer memory related to the vehicle event for long-term storage,wherein the individual frames designated for long-term storage have the first frame storage density during a first period of time that includes the vehicle event,wherein the individual frames identified for long-term storage have a second frame storage density for a second period of time before the first period of time and a third period of time after the first period of time, andwherein the first frame storage density is higher than the second frame storage density.

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