Remote control system for on-vehicle equipment and remote control method for the same
First Claim
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1. 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.
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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.
34 Citations
20 Claims
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1. An on-vehicle equipment remote control system, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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:
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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. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification