Anti-theft system for motor vehicles
First Claim
1. An anti-theft system for motor vehicles, comprising:
- a vehicle ignition switch for starting the vehicle when turned to an On-position and for terminating vehicle operation when turned to an Off-position;
a code input device for inputing a code;
a storage device for storing a predetermined code;
an electronic system including comparison means for comparing the inputted code with the stored code;
an enabling device actuated by said comparison means when the inputted code corresponds to the storage code;
said enabling device being effective, when actuated, to enable starting the vehicle engine by the vehicle ignition switch being turned to its On-position;
a manually operable reset device effective, when operated with the ignition switch in its Off-position, to deactuate said enabling device, but not effective when operated with the ignition switch in its On-position to deactuate the enabling device;
and a manually operable protection-disable device effective, when operated, to disable said reset device from deactuating said enabling device when the reset device is operated with the ignition switch in its Off-position.
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Accused Products
Abstract
An anti-theft system for motor vehicles, comprises a code input device for inputing a code; a storage device for storing a predetermined code; an electronic system for comparing the inputted code with the stored code; and an enabling device actuated when the inputted code corresponds to the stored code. The enabling device is effective, when actuated, to enable starting the vehicle engine by the vehicle ignition switch being turned to its On-position. The system further includes a manually operable reset device effective, when operated with the ignition switch in its Off-position, to deactuate the enabling device, but not effective when operated with the ignition switch in its On-position to deactuate the enabling device.
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Citations
18 Claims
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1. An anti-theft system for motor vehicles, comprising:
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a vehicle ignition switch for starting the vehicle when turned to an On-position and for terminating vehicle operation when turned to an Off-position; a code input device for inputing a code; a storage device for storing a predetermined code; an electronic system including comparison means for comparing the inputted code with the stored code; an enabling device actuated by said comparison means when the inputted code corresponds to the storage code; said enabling device being effective, when actuated, to enable starting the vehicle engine by the vehicle ignition switch being turned to its On-position; a manually operable reset device effective, when operated with the ignition switch in its Off-position, to deactuate said enabling device, but not effective when operated with the ignition switch in its On-position to deactuate the enabling device; and a manually operable protection-disable device effective, when operated, to disable said reset device from deactuating said enabling device when the reset device is operated with the ignition switch in its Off-position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An anti-theft system for motor vehicles, comprising:
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a vehicle ignition switch for starting the vehicle when turned to an On-position and for terminating vehicle operation when turned to an Off-position; a code input device for inputing a code; a storage device for storing a predetermined code; an electronic system including comparison means for comparing the inputted code with the stored code; an enabling device actuated by said comparison means when the inputted code corresponds to the stored code; said enabling device being effective, when actuated, to enable starting the vehicle engine by the vehicle ignition switch being turned to its On-position; a reset device effective to deactuate said enabling device; and a manually operable protection-disable device effective, when operated, to disable said reset device from deactuating said enabling device when the reset device is operated with the ignition switch in its Off-position. - View Dependent Claims (13, 14)
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15. An anti-theft system for motor vehicles, comprising:
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a vehicle ignition switch for starting the vehicle when turned to an On-position and for terminating vehicle operation when turned to an Off-position; a code input device for inputing a code; a storage device for storing a predetermined code; an electronic system including comparison means for comparing the inputted code with the stored code; an enabling device actuated by said comparison means when the inputted code corresponds to the stored code; said enabling device being effective, when actuated, to enable starting the vehicle engine by the vehicle ignition switch being turned to its On-position; said code input device comprising a keyboard for inputting a plurality of numbers according to a predetermined combination and sequence; said electronic system comprising a resetting circuit effective to reset the comparison means whenever there is a deviation in the combination or sequence of the inputted numbers from the stored code before the enabling device is actuated, but ineffective to reset the comparision means whenever there is such a deviation after the enabling device has been actuated; a reset device effective to deactuate said enabling device; and a manually operable protection-disable device effective, when operated, to disable said reset device from deactuating said enabling device when the reset device is operated with the ignition switch in its Off-position. - View Dependent Claims (16, 17, 18)
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Specification