Drive wave generation circuit

Details Drive wave generation circuit Drive wave generation circuit

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.

REFERENCES:
patent: 4316219 (1982-02-01), Smith et al.
patent: 4369455 (1983-01-01), McConica et al.
patent: 5155521 (1992-10-01), Bell et al.
patent: 6313777 (2001-11-01), Horvat et al.
patent: 6476537 (2002-11-01), Pease et al.
patent: 2004/0228400 (2004-11-01), Tanaka et al.
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.

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