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Patent Searching and Data


Title:
RINGING SUPPRESSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/208612
Kind Code:
A1
Abstract:
A ringing suppression circuit (8, 61) is provided in a node (2) equipped with a communication circuit (7, 51) for performing communication with another node (2) by transmitting a differential signal via a pair of communication lines (3P, 3N), and is equipped with a suppression unit (17), and an operation control unit (18, 62). The suppression unit suppresses ringing that occurs with the transmission of the differential signal. The operation control unit determines the presence or absence of the communication, upon determining that the communication is present, causes the suppression unit to shift to a normal operation state in which a normal operation is executable, and upon determining that the communication is absent, causes the suppression unit to shift to a low consumption current operation state in which the amount of a consumption current is smaller than in the normal operation state. Power is always supplied to the suppression unit and the operation control unit from a direct-current power source (9), and power is supplied to the communication circuit by way of a route from the direct-current power source via a power switch (10).

Inventors:
ISOMURA, Hirofumi (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2017/013942
Publication Date:
December 07, 2017
Filing Date:
April 03, 2017
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
H04L25/02; B60R16/023; H03K19/0175
Domestic Patent References:
WO2011058714A12011-05-19
Foreign References:
JP2010206268A2010-09-16
JP2014127809A2014-07-07
JP2014030125A2014-02-13
JP2012257205A2012-12-27
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (Fourteen Hills Center Building, 6-15 Sakae 4-chome, Naka-ku, Nagoya-sh, Aichi 08, 〒4600008, JP)
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