Title:
RINGING SUPPRESSION CIRCUIT AND RINGING SUPPRESSION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/037883
Kind Code:
A1
Abstract:
This ringing suppression circuit is connected to a transmission line (3) which transmits a differential signal that changes between low and high binary levels using a pair comprising a high potential side signal line (3H) and a low potential side signal line (3L), and suppresses ringing that occurs concomitantly with the transmission of the signal. The ringing suppression circuit is provided with: a line-to-line switching element (24) connected between the pair of signal lines; a control unit (6) which, upon detecting that the level of the differential signal has changed, carries out a ringing suppression operation to reduce the impedance between the signal lines by causing the line-to-line switching element to turn on; and a suppression operation prohibiting unit (15, 32, 55) which prohibits the ringing suppression operation being carried out by the control unit if a signal generated as a result of a signal on the transmission line is detected.
Inventors:
MORI HIROYUKI (JP)
HONDA TAKUYA (JP)
KISHIGAMI TOMOHISA (JP)
ISOMURA HIROFUMI (JP)
HONDA TAKUYA (JP)
KISHIGAMI TOMOHISA (JP)
ISOMURA HIROFUMI (JP)
Application Number:
PCT/JP2017/028449
Publication Date:
March 01, 2018
Filing Date:
August 04, 2017
Export Citation:
Assignee:
SOKEN INC (JP)
DENSO CORP (JP)
DENSO CORP (JP)
International Classes:
H03K19/0175; H04L25/02
Foreign References:
| JP2012257205A | 2012-12-27 | |||
| JP2004032721A | 2004-01-29 | |||
| JPH0677763A | 1994-03-18 |
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
Download PDF: