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Title:
RINGING SUPPRESSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/203840
Kind Code:
A1
Abstract:
A ringing suppression circuit (5, 21, 31) is provided to a branch point (4) at which a transmission line (3) for transmitting a differential signal branches off, the ringing suppression circuit suppressing ringing generated due to transmission of the differential signal. The ringing suppression circuit is provided with impedance elements (R1, R2, R21, R22, R31-R42) and a switching unit (8, 22, 32) for switching between a connected state in which the impedance elements are interposed in series in a stub-side path formed by branching and a non-connected state in which the impedance elements are not interposed in the stub-side path. When it is detected that the signal level of the differential signal has changed from dominant to recessive, the switching unit switches to the connected state for a fixed period of time and switches to the non-connected state for periods other than the fixed period of time.

Inventors:
HONDA, Takuya (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
KISHIGAMI, Tomohisa (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
ISOMURA, Hirofumi (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2017/013941
Publication Date:
November 30, 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; G06F3/00; H03K19/0175; H04B3/02
Foreign References:
JP2007166109A2007-06-28
JP2009253498A2009-10-29
JP2014011776A2014-01-20
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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