Switch device, in-vehicle communication system, and communication method
US12021658B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 2, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Feb 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/445
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A switch device includes: a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN and priority information is added, to another function unit via a communication port, according to the priority information; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port, thereby generating a duplicate frame for diagnosis. The duplication unit is able to set the priority information to be added to the duplicate frame for diagnosis, separately from the priority information to be added to the frame as an original. The switch unit outputs the duplicate frame for diagnosis, from a communication port corresponding to the other switch device, according to the priority information set by the duplication unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.