Title:
PORTABLE DEVICE AND REMOTE KEYLESS ENTRY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/044002
Kind Code:
A1
Abstract:
One embodiment of this portable device comprises: a receiver that receives an on-board device signal containing a determination signal having a portion with a constant signal level; a control unit that determines whether the on-board device signal is a legitimate signal on the basis of the waveform of a certain portion of the determination signal that has the portion with the constant signal level; and a transmitter that transmits a portable device signal that accords with the determination results for the on-board device signal.
Inventors:
MIYAZAWA AKIRA (JP)
Application Number:
PCT/JP2018/008602
Publication Date:
March 07, 2019
Filing Date:
March 06, 2018
Export Citation:
Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
E05B49/00; B60R25/24
Foreign References:
| JP2010185186A | 2010-08-26 | |||
| JP2017101496A | 2017-06-08 | |||
| JP2017201106A | 2017-11-09 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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