Boots – shoes – and leggings
Patent
1981-09-28
1984-06-26
Boudreau, Leo H.
Boots, shoes, and leggings
382 36, G06F 706, G06K 900
Patent
active
044569688
ABSTRACT:
A hardware logic network, operating at real-time data rates, generates a signal which matches the Mth-largest signal of an input data set. To accomplish this signal-matching, the network utilizes an iterative series of value adjustments which cause an intermediate working quantity to converge to a number whose rank in comparison to the input set is the same as that of the true Mth-largest. When test comparisons indicate that the intermediate value's relative rank is too low, the value-adjustment is upward. The adjustment is downward otherwise. Operating upon input data whose range of possible values is limited to a predetermined interval, the system takes as its initial working quantity the midpoint of this interval. The magnitude of the first adjustment is one-half of the remaining interval on either side of the initial approximation. Subsequent magnitude adjustments are in turn one-half of the preceeding half-remaining-interval magnitude.
When the number R of inputs is odd and M is set equal to (R+1)/2, the network becomes a real-time median filter.
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Carter F. Anthony
Sacks Jacob M.
Benman, Jr. W. J.
Boudreau Leo H.
Hughes Aircraft Company
Karambelas A. W.
Woloson G. J.
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