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Patent Searching and Data


Title:
SIGNAL TRANSMISSION CIRCUIT AND SIGNAL TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/171202
Kind Code:
A1
Abstract:
This signal transmission circuit is connected to a communication unit by signal wiring and performs signal transmissions between the signal transmission circuit and the communication unit through the signal wiring. The signal transmission circuit is provided with: a DC current supply unit which outputs a DC current with a variable output voltage and superimposes the DC current on the signal, and supplies the DC current to the communication unit via the signal wiring; a signal reception unit which receives the signal from the communication unit; and a signal processing unit which implements signal processing based on the signal received by the signal reception unit. The signal reception unit has an equalizer function to adjust the waveform of the signal to compensate for attenuation due to the signal wiring. The output voltage is controlled on the basis of an equalizer setting value used for controlling the equalizer function.

Inventors:
UEMATSU YUTAKA (JP)
SAKAMOTO HIDEYUKI (JP)
TOYAMA MASAHIRO (JP)
YAMAMOTO HIDETATSU (JP)
Application Number:
PCT/JP2020/007012
Publication Date:
August 27, 2020
Filing Date:
February 21, 2020
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H04L25/03; H04B3/04; H04L25/02
Foreign References:
JP2016046815A2016-04-04
US20140086297A12014-03-27
JP2007143055A2007-06-07
JP2010039544A2010-02-18
JPS55109023A1980-08-21
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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