Method and apparatus for electronic random prize distribution with fixed prize inventory and unknown participant count
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United States of America Patent
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Apr 3, 2012
Grant Date -
Aug 14, 2008
app pub date -
Feb 8, 2008
filing date -
Feb 9, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A probability of winning at least one of a plurality of prizes for a contest is dynamically adjusted, given a fixed prize inventory and an a priori unknown number of participants. A variable probability is determined by approximately dividing a current number of participants in the contest by a current number of prizes awarded. The variable probability is dynamically adjusted based on a variable probability multiplier, that is obtained by dividing a current number of winners in a predefined time interval by a remaining number of prizes in the predefined time interval. A prize can be awarded based on the adjusted variable probability.
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