Title:
車両用リモートコントロールシステム
Document Type and Number:
Japanese Patent JP4320554
Kind Code:
B2
Abstract:
To acquire a more satisfactory operation feel by making a time lag as short as possible from the instant when push button switches on the side of a vehicle are pushed to the instant when a door is actually locked/unlocked or when a trunk is actually opened. A vehicular remote control system includes a mobile unit carried by a driver and a vehicle unit mounted on a vehicle. The mobile unit sequentially receives signals transmitted from an n-number of transmission antennas of the vehicle unit to measure the reception intensities of the individual response signals, and then transmits those n-number of pieces of reception intensity information all at once to the vehicle unit. The vehicle unit locates the mobile unit on the basis of the n-number of pieces of reception intensity information. If the time period necessary for each reception intensity measurement is designated by Ta and if the time period necessary for the notification of the measurement result is designated by Tb, the time lag can be reduced by the difference between än x (Ta + Tb)) and (n x Ta + Tb).
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Inventors:
Satoshi Yamashita
Maki Fujii
Maki Fujii
Application Number:
JP2003055256A
Publication Date:
August 26, 2009
Filing Date:
March 03, 2003
Export Citation:
Assignee:
OMRON Corporation
International Classes:
E05B49/00; B60R25/01; B60R25/24; G07C9/00
Domestic Patent References:
| JP9317288A | ||||
| JP2002077972A |
Attorney, Agent or Firm:
Hidemi Kashima