US 2019/0199550 A1Published application

Relay device

AssigneeDenso Corporation

InventorsHiroto TANAKA, Mitsutoshi KATO, Katsuhiko FURUTA

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Abstract

A relay device may include a plurality of communication circuits and a state control portion. The relay device may relay the data among a plurality of buses, each of which connecting one or more nodes. The plurality of communication circuits may perform transmission and reception of the data, and transition among a plurality of states including a transmission enabled state and a transmission disabled state. The plurality of communication circuits may be connected to the plurality of buses in one to one manner. The state control portion may cause a specific communication circuit to transition from the transmission enabled state to the transmission disabled state when a relay transition time has elapsed from an occurrence of predetermined event. The specific communication circuit may represent at least one of the plurality of communication circuits to which at least one of the plurality of buses connecting the specific node is connected.

Claims6

Dependent claims

A relay device configured to relay data among a plurality of buses, each of which connecting one or more nodes,

the relay device comprising:
a plurality of communication circuits configured to perform transmission and reception of the data and transition among a plurality of states including a transmission enabled state and a transmission disabled state, a transmission of the data enabled in the transmission enabled state, the transmission of the data disabled in the transmission disabled state, and the plurality of communication circuits connected to the plurality of buses in one to one manner;
and
a processor configured to cause a specific communication circuit to transition from the transmission enabled state to the transmission disabled state when a relay transition time has elapsed from an occurrence of predetermined event,
wherein:
a specific node, which represents at least one of the one or more nodes, transitions among the plurality of states including the transmission enabled state and the transmission disabled state;
the specific node transitions from the transmission enabled state to the transmission disabled state when a predetermined node transition time has elapsed from the occurrence of the predetermined event;
the specific communication circuit represents at least one of the plurality of communication circuits to which at least one of the plurality of buses connecting the specific node is connected;
and
the relay transition time is calculated to add a predetermined additional time to the node transition time.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/293,978Filed 6 Mar 2019
Priority: JP 2016-1768229 Sep 2016
Published: 27 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04L 12/46
Characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]: interconnection of networks
G06F 13/4045
Using bus bridges: where the bus bridge performs an extender function
H04L 12/12
Details: arrangements for remote connection or disconnection of substations or of equipment thereof
H04L 12/40006
Bus networks: architecture of a communication node