Title:
COMMUNICATIONS DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/102309
Kind Code:
A1
Abstract:
A main control unit (10, 110) is configured so as to enable communications control between the main control unit and another communications node after completing startup from low-power mode to normal operation mode. An auxiliary control unit (20, 120) comprises a wakeup signal determination unit (51, 151) that detects a wakeup signal from a communications bus. The auxiliary control unit comprises at least one execution unit, being either a bus startup signal transmission unit (62, 162) that activates a communications bus for which a wakeup signal was detected beforehand or a dummy signal transmission unit (61, 161) that sends a dummy signal to the communications bus for which a wakeup signal was detected beforehand, in order to be able to start communications at the startup completion timing of the main control unit with another communications node that is connected to the communications bus, using the detection of the wakeup signal by the wakeup signal determination unit as a trigger.
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Inventors:
YOKOYAMA NAOTO (JP)
Application Number:
PCT/JP2021/037402
Publication Date:
May 19, 2022
Filing Date:
October 08, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H04L12/40; B60R16/023
Foreign References:
| JP2013107453A | 2013-06-06 | |||
| JP2013062722A | 2013-04-04 | |||
| JPH06261100A | 1994-09-16 | |||
| JP2004135168A | 2004-04-30 | |||
| JP2008283492A | 2008-11-20 |
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
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