Title:
INFORMATION MEDIA PROCESSING DEVICE AND MOTOR CONTROL METHOD
Document Type and Number:
Japanese Patent JP2022026088
Kind Code:
A
Abstract:
To provide an information medium processing device that detects the speed of a motor used to convey an information medium such as a magnetic card with an encoder, and can precisely control the moving speed of the information medium even when the duty ratio of a binary pulse signal output by the encoder during constant velocity motion does not reach 50%.SOLUTION: Every time the rising edge of a pulse signal S output by an encoder 1 is detected, a first value X which is the length of a period from the previous rising edge is obtained, and each time the falling edge is detected, a second value Y which is the length of a period from the previous falling edge is obtained, a motor is controlled according to the first value X each time the first value X is obtained, and each time the second value Y is obtained, the motor is controlled according to the second value Y.SELECTED DRAWING: Figure 1
Inventors:
KUROIWA YUKIO
Application Number:
JP2020129381A
Publication Date:
February 10, 2022
Filing Date:
July 30, 2020
Export Citation:
Assignee:
NIDEC SANKYO CORP
International Classes:
H02P6/08; G06K7/08; G06K13/06; H02P6/17
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata
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