KEYLESS ALERT SYSTEM AND METHOD FOR AUTOMOBILES
First Claim
1. A keyless alert system for use in an automobile incorporating a keyless control system having a master controller in the automobile and a remote controller co-operable with the master controller for starting an engine of the automobile, the keyless alert system comprising:
- a master alert unit, for use in the master controller, comprising a first control circuit and a first communicating device;
a remote alert unit, for use in the remote controller, comprising a second control circuit and a second communicating device for carrying out a communicating operation with the first communicating device; and
an alert signal generator in an associated one of the master alert unit and the remote alert unit and connected to control circuit off the associated one of the master alert unit and the remote alert unit, wherein the control circuit of the associated one of the master alert unit and the remote alert unit activates the alert signal generator to provide an alert signal while the engine is running and when the communicating operation fails by reason of the remote alert unit being separated from the master alert unit beyond a certain distance,
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Accused Products
Abstract
A keyless alert system for use in a car incorporating a keyless control system including a master controller and a remote controller co-operable via an RF communication link. The keyless alert system comprises a master alert unit in the master controller, a remote alert unit in the remote controller, and an alert signal generator in each of the alert units for providing an alert signal while the car engine is running and when the communication link fails by reason of the remote alert unit being separated from the master alert unit beyond a certain distance.
32 Citations
19 Claims
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1. A keyless alert system for use in an automobile incorporating a keyless control system having a master controller in the automobile and a remote controller co-operable with the master controller for starting an engine of the automobile, the keyless alert system comprising:
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a master alert unit, for use in the master controller, comprising a first control circuit and a first communicating device; a remote alert unit, for use in the remote controller, comprising a second control circuit and a second communicating device for carrying out a communicating operation with the first communicating device; and an alert signal generator in an associated one of the master alert unit and the remote alert unit and connected to control circuit off the associated one of the master alert unit and the remote alert unit, wherein the control circuit of the associated one of the master alert unit and the remote alert unit activates the alert signal generator to provide an alert signal while the engine is running and when the communicating operation fails by reason of the remote alert unit being separated from the master alert unit beyond a certain distance, - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In an automobile incorporating a keyless control system having a master controller in the automobile and a remote controller co-operable with the master controller for starting an engine of the automobile, a method of alerting separation of the remote controller from the master controller beyond a certain distance, comprising:
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(a) establishing a communication link between the master and the remote controllers; (b) starting the engine; (c) checking status of the communication link, any failure of which indicates that the remote controller is separated from the master alert unit beyond the certain distance; and (d) providing an alert signal when the communication link fails while the engine is running. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification