Remote control system for on-vehicle equipment and remote control method for the same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroki Okada
Life of this patent
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Abstract
In an on-vehicle equipment remote control system provided with a portable unit that a vehicle operator can carry and an on-vehicle unit that executes a predetermined process if a code content of a response signal issued by the portable unit in response to a transmitted request signal matches a required code content, the on-vehicle unit transmits the request signal on a first frequency prior to the start of a vehicle power source and transmits the request signal on a second frequency that is higher than the first frequency after the start of the vehicle power source.
Claims20
An on-vehicle equipment remote control system, comprising:
- a portable unit that can be carried;
- and
- an on-vehicle unit that executes a predetermined process when a code content of a response signal issued by the portable unit in response to a transmitted request signal matches a required content, wherein
- the on-vehicle unit transmits a request signal on a first frequency prior to start of a vehicle power source, and transmits a request signal on a second frequency that is higher than the first frequency after the start of the vehicle power source.
A remote control method of an on-vehicle equipment remote control system provided with a portable unit and an on-vehicle unit, comprising the steps of:
- transmitting a request signal using the on-vehicle unit;
- transmitting a response signal using the portable unit issued in response to the request signal;
- and
- executing a predetermined procedure using the on-vehicle unit if a code content of the response signal matches a required code content, wherein
- the on-vehicle unit transmits the request signal on a first frequency prior to start of a vehicle power source, and transmits the request signal on a second frequency that is higher than the first frequency after the start of the vehicle power source.
Dependencies are inferred from the claim text.