High security counter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 22, 1994
Grant Date -
N/A
app pub date -
Mar 18, 1992
filing date -
Mar 18, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high security counting system is shown for counting events represented by an event signal. The counting system includes a nonerasable programmable read only memory which is programmed by a programmer under the control of a controller. The controller is responsive to an event signal for controlling the programmer to program a bit from a first value to a second value wherein each bit programmed to a second value represents a unit of count and the number of bits programmed to the second value represents the count of said counter.
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