Appeal No. 96-3248
Application 08/022,347
that each module stores all the membership functions of a
corresponding logic variable. Nakano discloses that the
membership functions of the front preposition part of all the
rules are pre-stored in the two-port RAM 57 [column 8, lines 30-
36]. Nakano does not specifically disclose how two-port RAM 57
is arranged according to its addressing scheme, however, it is
clear that the single RAM 57 of Nakano does not meet the claim
limitation that there be a respective storage module for each
logic variable of each rule. The two-port RAM 57 of Nakano
constitutes a single storage module.
Claim 9 also recites that the rear implication part of
the membership functions of each rule be stored in a single
storage module, and that the functions are stored as memory words
having two discrete terms for calculating a center of gravity.
Although Nakano can be considered to store membership functions
of the rear implication part of the rules in a single storage
module (two-port RAM 67), the membership functions in Nakano are
stored as three coordinate points in a three-axis coordinate
system. Although the coordinate points in Nakano are used in a
center of gravity computation, there is no disclosure in Nakano
that each coordinate point is stored as two discrete terms for
calculating a center of gravity. These observations may seem
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Last modified: November 3, 2007