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Event recording system with digital line camera

  • US 5,657,077 A
  • Filed: 02/18/1993
  • Issued: 08/12/1997
  • Est. Priority Date: 02/18/1993
  • Status: Expired due to Term
First Claim
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1. A system for recording and displaying a time sequence of bodies crossing a plane, comprising:

  • A. a digital camera which generates a sequence of digital image frames, each frame of said sequence representing light values of pixels from a line object that is captured by said camera at a moment in time and imaged onto a linear array of detector elements, said digital camera producing an output signal comprising a plurality of digital words representative of said digital image frames;

    B. an image timer, in communication with said digital camera, including a timer processing means which marks each frame of said sequence with a time reference indicative of said moment in time, said image timer further including a buffer adapted to store said digital image frames generated by said digital camera; and

    C. a main control computer, in communication with said image timer and said digital camera, including an internal memory which stores said frames from said buffer as blocks of information, and a virtual memory subsystem in memory communication with said main control computer, said virtual memory subsystem being adapted for storage of said blocks of information, said main control computer further including a display monitor which displays a portion of said sequence as a time-sequential scene, said main control computer arranged for controlling the operation of said system and responding to commands input by a user wherein said user can selectively command the display of said time-sequential scene of said bodies crossing said plane.

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