Apparatus for displaying at least two parameters of populations of particles on a cathode ray tube
AssigneeBecton, Dickinson and Company
InventorMarc T. Kaufman
Life of this patent
Estimating the term…
Abstract
Apparatus for displaying dots on a cathode ray tube representing populations of particles being analyzed, which includes a pair of digital memories which concurrently store X-Y data pairs for several particles and which drive the X-Y deflection circuits of an associated CRT.
Claims4
Apparatus for displaying on a conventional cathode ray tube (CRT) with X-Y deflection circuits two parameters of populations of particles where said particles are being analyzed and/or sorted by apparatus which provides for each particle a pair of substantially concurrent analog signals representative of two properties of each particle of said populations comprising;
- analog-to-digital converter means for converting each of said analog signals to a digital number;
- a pair of digital storage means each with a predetermined amount of addressable storage locations for sequentially storing said digital numbers;
- means for overwriting, in the sequence in which stored, previously stored digital numbers when said storage is exceeded;
- means for reading said pair of storage means, including a pair of digital-to-analog converters for respectively receiving said stored digital numbers and driving the X-Y deflection circuits of said CRT;
- and including means for unblanking said CRT.
Dependencies are inferred from the claim text.