Appeal No. 1997-1573
Application No. 08/276,551
1. An active vibration control system for controlling
vibrations at a structure resulting from at least one
excitation force acting upon the structure,
comprising:
at least one actuator located at the structure for
imparting a reaction force to the structure;
at least one sensor located away from said actuator,
said at least one sensor producing a sensor output;
a controller connected between said at least one
sensor and said at least one actuator, said controller
including:
a system identifier for receiving said sensor
output from said at least one sensor and
deriving a relationship between said sensor
output and said reaction force imparted to the
structure by said at least one actuator; and
an optimal controller connected to said system
identifier to receive said relationship and for
developing control driving signals from said
relationship for driving said at least one
actuator;
said system identifier including a Hopfield based
neural network for learning the dynamics of the
structure represented in a state space form and
for providing output signals that follow state
variables of the structure.
The Examiner relies on the following prior art : 2
Bozich et al. (Bozich) 5,386,689 Feb. 07, 1995
(Filed Oct. 13, 1992)
Claims 1, 2, 4, 7 through 9, 15, and 16 stand finally
2The Examiner has additionally relied on admissions of
the prior art at page 23 of Appellant’s specification.
3
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