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Title:
SIGNAL TRANSMISSION CIRCUIT AND ELECTRONIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/261790
Kind Code:
A1
Abstract:
A signal transmission circuit comprising: a circuit board housed inside a case; a connector mounted upon the circuit board and comprising a first signal terminal and a first ground terminal; and an integrated circuit mounted upon the circuit board and comprising a second signal terminal and a second ground terminal. The first signal terminal and the second signal terminal are mutually connected by signal wiring arranged on the circuit board. The first ground terminal and the second ground terminal are mutually connected by ground wiring arranged in a prescribed area of the circuit board that includes the area directly above or directly below the signal wiring. The ground wiring has a high-impedance structure that is formed wider than the signal wiring and narrower than the combined width of the first signal terminal and the first ground terminal, in at least part of the area directly above or directly below the signal wiring.

Inventors:
NAKAMURA YUKI (JP)
TOYAMA MASAHIRO (JP)
HODA ISAO (JP)
FUNATO HIROKI (JP)
PAOLETTI UMBERTO (JP)
SAKAMOTO HIDEYUKI (JP)
UEMATSU YUTAKA (JP)
Application Number:
PCT/JP2020/019163
Publication Date:
December 30, 2020
Filing Date:
May 13, 2020
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H04L25/02; H01P3/08; H01P5/10; H01R24/38; H05K1/02; H05K9/00
Domestic Patent References:
WO2010103901A12010-09-16
WO2019111655A12019-06-13
Foreign References:
JP2014049877A2014-03-17
JP2018029322A2018-02-22
JP3199753U2015-09-10
JP2015153920A2015-08-24
JP2006509374A2006-03-16
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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