Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Reexamination Certificate
2007-10-30
2007-10-30
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
C318S129000, C310S317000
Reexamination Certificate
active
11433751
ABSTRACT:
Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standard waveforms are counted up by a 200-cycle counter. A drive counter is downcounted every 200 cycles, while the drive counter is upcounted in accordance with the number of drive pulses DRIVE. When the count value of the drive counter becomes zero, output from the output gate is thereby stopped. At the time of startup, outputs from the 200-cycle counter are counted so as to output a drive wave in a predetermined number in a predetermined direction.
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Yasuhiro Okamoto et al.; “The Development of a Smooth Impact Drive Mechanism (SIDM) Using a Piezoelectric Element”; Konica Minolta Technology Report; vol. 1 (2004), p. 23-26.
Ishii Takaaki
Okada Noriaki
Suzuki Akira
Ueshima Yasuyuki
Yoshitomi Tetsuya
Osha & Liang LLP
Ro Bentsu
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