Registers – Coded record sensors – Feed mechanisms
Patent
1990-02-28
1992-08-04
Pitts, Harold
Registers
Coded record sensors
Feed mechanisms
235469, 235472, G06K 1300
Patent
active
051361450
ABSTRACT:
A symbol reader is disclosed that uses a dynamic random access memory 24 as a detector element and a gradient refractive index material as the lens 14 to capture a symbol image. The rod shaped lens 14 passes through an opaque cover 26 and confronts the array of memory elements in the memory 24. The cover 26 is glued to a memory device package 28. The PN junctions of the random access memory 24 are activated by light reflected from a symbol 6 and appear as data when the random access memory 24 is read out. The light can be provided by light emitting diodes 34 positioned adjacent to the memory package 28 and in a hand held wand 46 that includes a light reflecting shield 48 in which the symbol is positioned for reading. The wand 46 is positioned over the symbol 6 and a read button 50 is depressed. A computer 58 monitoring the read button 50 activates the light emitting diodes 34 and then reads out the contents of the random access memory 24, unscrambles the data, signals the user that the symbol 6 has been captured and then outputs the symbol image.
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"How Japanese Square Route Could Cut the Cost of Coding", by Roy Garner, May 5, 1987, Colin Linn Financial Times.
Public Gaming Magazine, 1986, Jul. pp. 76-77, Application U.S. Ser. No. 013,026 Nov. 10, 1987.
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