Memory Management In Event Recording Systems

  • US 20090222163A1
  • Filed: 12/07/2006
  • Published: 09/03/2009
  • Est. Priority Date: 12/08/2005
  • Status: Active Grant
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First Claim
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1. A vehicle event recorder comprising:

  • a camera;

    a managed loop buffer memory; and

    an overwrite device,the camera being operable for converting optical images into electronic signals suitable for recording in the managed loop buffer memory,the managed loop buffer memory being a random access, rewritable, electronic storage medium of finite size suitable for storing data, including data arranged as discrete video frame data, andthe overwrite device being electronically coupled to the managed loop buffer memory and arranged to manage data overwrite operations,whereby a first video frame older than a second video frame is saved in the managed loop buffer memory while the second video frame is overwritten.

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