Appeal No. 2001-1481
Application No. 09/088,976
time of a high speed electrifying circuit and a low speed
electrifying circuit of a driving pulse generating means. With
such control, a voltage waveform can be changed while an object
is moving in a single direction, thereby reducing the degree of
movement of the object as the object approaches a target
position.
Representative independent claim 1 is reproduced as follows:
1. A driving apparatus comprising:
an electromechanical transducer which can extend and
contract in a predetermined direction, said transducer having a
first end and a second end in the predetermined direction;
a first member connected to the first end of said
transducer;
a driving frictional member connected to the second end of
said transducer;
a second member frictionally coupled with said driving
frictional member;
a driving pulse generating means including a high-speed
electrifying circuit and a low-speed electrifying circuit, said
driving pulse generating means being connected to said
electromechanical transducer; and
a controller which is capable of controlling an
electrification period of time and an electrification start time
of said high-speed electrifying circuit and said low-speed
electrifying circuit of said driving pulse generating means.
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