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Apparatus and method for recording data in a circular fashion

  • US 7,319,485 B2
  • Filed: 03/21/2003
  • Issued: 01/15/2008
  • Est. Priority Date: 03/21/2003
  • Status: Expired due to Fees
First Claim
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1. An apparatus for recording data comprising:

  • an input sensor for receiving data;

    a buffer coupled to the input sensor wherein the buffer comprises a plurality of storage portions structured and arranged to cyclically cascade from one to another, the plurality of storage portions including at least a first storage portion configured to store data at a first rate, a second storage portion configured to store data at a second rate and a third storage portion configured to store data at a third rate;

    a central processing unit coupled to the buffer and the input sensor wherein the central processing unit stores the data in the plurality of storage portions in a circular fashion including storing data from the first storage portion into the second storage portion once the first storage portion reaches a first predetermined threshold; and

    storing data from the second storage portion into the third storage portion once the second storage portion reaches a second predetermined threshold; and

    an interface coupled to the buffer for allowing a remote data accessing device to access a specific portion of the data stored in the buffer.

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