Title:
COMMUNICATION SYSTEM, COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION PARAMETER DETERMINING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/051677
Kind Code:
A1
Abstract:
Provided are a communication system, communication device, communication method and communication parameter determining method enabling higher speed communication and a reduction in the impact of ringing. If transmission data is dominant, a transmission unit (17) in an ECU (1) outputs, to a communication line (5), a signal having a specific signal level spanning a pulse width (Tp) which is shorter than the transmission time for one bit, and then stops the output of the signal to the communication line (5), creating a high impedance state, and if the transmission data is recessive, the transmission unit (17) creates a high impedance state without the output of the signal to the communication line (5). Also, a reception unit (18) in the ECU (1) samples the signal level of the communication line (5) across a sampling period (Td), calculates the average value of the sampled signal levels, and makes a dominant/recessive determination according to whether the calculated average exceeds a threshold value or not.
Inventors:
UMEHARA DAISUKE (JP)
ISHIKO SHINICHI (JP)
TSUBOUCHI TOSHIYASU (JP)
ISHIKO SHINICHI (JP)
TSUBOUCHI TOSHIYASU (JP)
Application Number:
PCT/JP2012/075883
Publication Date:
April 11, 2013
Filing Date:
October 05, 2012
Export Citation:
Assignee:
NAT UNIV CORP KYOTO INST TECH (JP)
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H04L25/02; H04L12/40; H04L25/08
Foreign References:
| JP2006067543A | 2006-03-09 | |||
| JP2011259234A | 2011-12-22 | |||
| JP2011250282A | 2011-12-08 |
Attorney, Agent or Firm:
KOHNO, Hideto et al. (JP)
Hidehito Kono (JP)
Hidehito Kono (JP)
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Claims: