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GRAPHIC RECORDING APPARATUS AND METHOD

  • US 3,767,850 A
  • Filed: 02/22/1972
  • Issued: 10/23/1973
  • Est. Priority Date: 02/22/1972
  • Status: Expired due to Term
First Claim
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1. In a scintillation scanner comprising detection means for detecting a predetermined class of events, improved apparatus for controlling the recording of individual events on a recording medium in response to the concentration of other such events in the class occurring in the areas adjacent the individual events, comprising in combination:

  • recording means for recording the occurrence of an individual event in the class on the recording medium;

    scanning means for moving the detection means in a first direction along a first scan path and for moving the detection means along a second scan path parallel to the first scan path;

    coupling means for coupling the detection means to the recording means whereby the detection means and the recording means are moved simultaneously;

    storage means for storing individual event information representing an individual event in the class occurring at an arbitrary first location along the first scan path and for storing information representing other events in the class occurring before and after the individual event in segments of the first scan path lying on both sides of the first location;

    operating means for transmitting information representing events in the class from the detection means to the storage means and for operating the storage means;

    transmitting means for transmitting the individual event information from the storage means to the recording means;

    control means for analyzing the information stored in the storage means and for controlling the recording means so that the individual event information is recorded in response to the value of the stored information; and

    means for maintaining the recording means and the recording medium in a first relative position while the detection means is moving along the first scan path and for maintaining the recording means and the recording medium in a second relative position while the detection means is moving along the second scan path, whereby events occurring in adjacent locations of the first and second scan paths are recorded in adjacent locations on the recording medium.

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