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:
Jun. 02, 2020
Filed:
Jun. 30, 2017
Hitachi Metals, Ltd., Tokyo, JP;
Yukio Ikeda, Hitachi, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A line sensor includes a sensor cord including a resilient hollow insulator and two electrical wires arranged along an inner circumferential surface of the hollow insulator in an electrically non-contact state with each other, a constant current source which is connected to one of the two electrode wires at one end of the sensor cord, and a detecting device for detecting a pressed position. The other electric wire is grounded at the other end of the sensor cord. The two electric wires include a resistance wire having a resistance of 1 kΩ/m or more. The detecting device detects a voltage of the resistance wire at one end of the sensor cord to detect the pressed position in a longitudinal direction of the sensor cord based on the detected voltage.