SIGNAL GENERATION DEVICE AND SIGNAL READING SYSTEM

WIPO Patent Application WO/2020/022387

A1

[Problem] To generate a code identifying signal that can identify a code corresponding to a logic signal transmitted to a communication channel without being connected to the communication channel via a connector. [Solution] The present invention is provided with: a first impedance element 12a that is connected to one electrode 21 brought into contact with a covered section of a covered conductive wire La and that generates a first voltage signal Vc1 the voltage of which changes according to a voltage Va transmitted to the covered conductive wire La, which is capacitively coupled with the one electrode 21; a second impedance element 12b that is connected to the other electrode 21 brought into contact with a covered section of a covered conductive wire Lb and that generates a second voltage signal Vc2 the voltage of which changes according to a voltage Vb transmitted to the covered conductive wire Lb, which is capacitively coupled with the other electrode 21; and a differential amplification unit 13 for outputting a single-ended signal Vd the voltage of which changes according to the difference voltage between the voltage signals Vc1, Vc2. A code identifying signal Sf is generated on the basis of this signal Vd.

YANAGISAWA KOICHI (JP)
IKEDA HIROYOSHI (JP)
KASAI SHIN (JP)
SAKAI TOMOHARU (JP)

PCT/JP2019/029047

January 30, 2020

July 24, 2019

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HIOKI ELECTRIC WORKS (JP)

H04L25/02; H03F3/34; H03K5/08

JP2018519703A	2018-07-19
US20090140849A1	2009-06-04
JP2013162159A	2013-08-19
JPH04132412A	1992-05-06

SAKAI Shinji (JP)

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