Title:
KEYLESS SYSTEM FOR VEHICLE, VEHICLE MOUNTED DEVICE OF KEYLESS SYSTEM FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2017/159399
Kind Code:
A1
Abstract:
[Problem] To reliably deliver unit command signals to a CPU in a vehicle-mounted device; in this vehicle-mounted device, a receiving unit receives multiple unit command signals and sequentially stores these in the ring buffer, and unit command signals are inputted from the ring buffer to the CPU in response to an interrupt signal outputted from the receiving unit each time said storage has been completed.
[Solution] After storage of a first unit command signal RC(1) to a ring buffer has been completed, in the case that part of a second unit command signal RC(2) is stored in the ring buffer when the CPU inputs said first unit command signal RC(1), when receiving a first interrupt signal BQ(1), the CPU inputs, then separates, the first unit command signal and the part of the second unit command signal; when receiving a second interrupt signal BQ(2), the CPU inputs the remainder of the second unit command signal, and, by combining the aforementioned part of the second unit command signal and the remainder of said signal, acquires the previously divided second unit command signal as a signal in which all of the data is present.
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Inventors:
NAKASHIMA YUUKI (JP)
Application Number:
PCT/JP2017/008453
Publication Date:
September 21, 2017
Filing Date:
March 03, 2017
Export Citation:
Assignee:
CALSONIC KANSEI CORP (JP)
International Classes:
H04B1/59; B60R25/24; E05B49/00; H04B1/38
Foreign References:
| JP2009127244A | 2009-06-11 | |||
| JP2010222810A | 2010-10-07 | |||
| JP2010136270A | 2010-06-17 | |||
| JP2002026760A | 2002-01-25 |
Attorney, Agent or Firm:
TAKEHARA Naohiko et al. (JP)
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