Title:
TRANSMISSION CONTROL DEVICE, PORTABLE APPARATUS, VEHICLE SYSTEM, TRANSMISSION CONTROL METHOD, CONTROL METHOD, AND CONTROL PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/100415
Kind Code:
A1
Abstract:
A transmission control device that drives a plurality of antennas that have different transmission ranges. The transmission control device comprises: a first transmission control part (341) that makes one normal transmission antenna from among the antennas transmit, on a carrier wave, a normal code that that is for starting a portable apparatus and also makes the normal transmission antenna transmit, in succession with the normal code, a noise determination burst signal that is for determining whether there is noise at the portable apparatus; and a second transmission control part (342) that makes a group of other antennas transmit a noise determination burst signal, each at different timing and at timing that is offset from the timing of the noise determination burst signal transmitted by the normal transmission antenna, the other antennas being all of the antennas other than the normal transmission antenna from among a plurality of antennas that include the normal transmission antenna and do not have any overlap in the transmission ranges set therefor.
Inventors:
KATO KENJI (JP)
Application Number:
PCT/JP2019/036537
Publication Date:
May 22, 2020
Filing Date:
September 18, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01S5/02; B60R25/24; E05B49/00
Foreign References:
| JP2015183412A | 2015-10-22 | |||
| JP2015072162A | 2015-04-16 | |||
| JP2015045183A | 2015-03-12 | |||
| JP2016035133A | 2016-03-17 | |||
| US20120286927A1 | 2012-11-15 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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