The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1999
Filed:
May. 30, 1997
Makoto Miura, Kameoka, JP;
Kohji Inoue, Kyoto, JP;
Mitsuo Yamashita, Kyoto, JP;
Takahiro Kaneuchi, Muko, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A micromanipulator system has a stepper motor driven at a microstep, and having a stepping angle which is subdivided in units of a predetermined reference subdivision. A micromanipulator moves an instrument by the stepper motor, and an input device inputs either a moving speed of the fine instrument or a moving position thereof. A present position calculating device calculates a present position of the stepper motor in a virtual subdivision unit which is obtained by subdividing the reference subdivision unit to a preselected subdivision number. A speed calculating device calculates a drive speed of the stepper motor based either on the moving speed or the moving position, which are entered from the input device. An output pulse setting device determines a target output pulse, and an energizing signal outputting device energizes the stepper motor in response to the target output pulse. The stepper motor is independently provided on the micromanipulator so as to move the fine instrument in a plurality of axial directions. A moving ratio calculating device calculates a ratio of moving amounts along the axial directions based upon a moving angle of the fine instrument. The input device calculates either the moving speed or the moving position along the respective axial directions based upon the ratio of moving amounts.