Vehicle control system including transponder jammer and related methods
First Claim
1. A vehicle control system comprising:
- a radio transponder to be carried by a user;
a radio transponder reader at the vehicle for enabling at least one vehicle function responsive to receiving a desired radio signal from said radio transponder when positioned in proximity therewith; and
a jammer radio transmitter at the vehicle for selectively preventing said radio transponder reader from receiving the desired radio signal from said radio transponder.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle control system includes a radio transponder to be carried by a user, and a radio transponder reader at the vehicle for generating control signals to enable at least one vehicle function based upon receiving a desired radio signal from the radio transponder when positioned in proximity to the reader. A jammer radio transmitter at the vehicle selectively prevents the radio transponder reader from receiving the desired radio signal from the radio transponder based upon a controller, such as an alarm controller of a vehicle security system, especially an after-market security system. The controller preferably includes a receiver for receiving remotely generated signals to operate the jammer radio transmitter. The control system may also include a remote transmitter for generating control signals to be received by the receiver. For example, the remote transmitter may be a portable transmitter carried by the user, or may be a satellite, cellular or paging transmitter remote from the vehicle. A vehicle anti-hijack switch may control the transponder jammer. The at least one vehicle function may be operation of a vehicle engine or control of the vehicle door locks.
146 Citations
41 Claims
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1. A vehicle control system comprising:
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a radio transponder to be carried by a user;
a radio transponder reader at the vehicle for enabling at least one vehicle function responsive to receiving a desired radio signal from said radio transponder when positioned in proximity therewith; and
a jammer radio transmitter at the vehicle for selectively preventing said radio transponder reader from receiving the desired radio signal from said radio transponder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vehicle control system comprising:
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a radio transponder to be carried by a user;
a radio transponder reader at the vehicle for enabling at least one vehicle function based upon receiving a desired radio signal from said radio transponder when positioned in proximity therewith;
an alarm controller at the vehicle and being switchable between an armed mode being capable of generating an alarm and a disarmed mode; and
a jammer radio transmitter at the vehicle and connected to said alarm controller for selectively preventing said radio transponder reader from receiving the desired radio signal from said radio transponder when said alarm controller is in the armed mode. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for vehicle control comprising the steps of:
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using a radio transponder reader at the vehicle for generating control signals to enable at least one vehicle function based upon receiving a desired radio signal from a radio transponder when positioned in proximity therewith; and
selectively operating a jammer radio transmitter at the vehicle for preventing the radio transponder reader from receiving the desired radio signal from the radio transponder. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification