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:
Jan. 07, 2020
Filed:
Jun. 06, 2019
Nidec Sankyo Corporation, Nagano, JP;
Munemasa Momose, Nagano, JP;
NIDEC SANKYO CORPORATION, Nagano, JP;
Abstract
A card reader may include a main body part including a card conveyance path; a shutter member structured to move between a closed position and an open position; a first capacitance sensor provided in the main body part; and a control unit. The control unit may be structured to calculate a first output difference between an output of the first capacitance sensor in a first state and an output of the first capacitance sensor in a second state; calculate a second output difference between a maximum output of the first capacitance sensor in a period from the first state to the second state and the output of the first capacitance sensor in the second state; and determine that an object is installed when the first output difference is greater than a predetermined first threshold and the second output difference is less than a predetermined second threshold.