Key actuated electronic lock for auto ignitions
First Claim
1. A mechanical-electronic lock system for actuating auto ignitions and the like only upon sequential electronic and mechanical unlocking operations including a matching of a stored electronic lock code with an electronic key code generated as a key is being inserted into a lock cylinder followed by a mechanical turning of the key in the cylinder, the lock system comprising:
- control means in a separate compartment and including storage means for storing a predetermined electrical lock code,comparator means for comparing said electrical lock code with electrical input codes to said control means, andmeans responsive only to a match between said lock and input codes for preconditioning an auto ignition and/or auto accessories for operating only in response to a subsequent mechanical turning of a lock cylinder in a mechanical key-actuated auto ignition lock;
a mechanical key-actuated auto ignition lock including a manually turnable lock cylinder for actuating said auto ignition and/or said auto accessories only after a preconditioning thereof by said control means followed by a turning of said lock cylinder, said cylinder having a keyway for receiving a mating ignition key for turning said lock cylinder in response to a turning of said mating ignition key;
a mating ignition key insertable into said keyway for turning said lock cylinder in response to a manual turning of said key and carrying a key code on a side face of said key, said key code matching said lock code;
transducer means in said auto ignition lock for reading said key code and generating an electrical key code indicative of said key code as said key is being inserted into said keyway; and
means for applying said electrical key code to said control means as an electrical input code for comparison and matching with said electrical lock code to precondition said auto ignition and/or accessories.
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Accused Products
Abstract
A key-actuated electronic lock system for auto ignitions including a conventional auto ignition key-lock combination. Electronic lock actuating information is stored on the key and the lock supports a transducer for sensing the information stored on the key as it is inserted into the lock and for generating a coded electric signal indicative of the lock actuating information for application to a control secured in a locked compartment remote from the ignition lock. Within the control, the coded signal is compared with programmable coded information stored in the control and indicative of the electronic lock actuating information. A match of the information actuates circuitry for applying electric power to the auto ignition and auto accessories as desired including a lock to the locked compartment. The control includes a time delay lock out preventing unauthorized pulse code generator input from operating the system and over voltage protection devices for preventing a voltage override of the system. An auxiliary circuit allows operation of the auto ignition only by a standard mechanically coded ignition key after a combined closing of an auxiliary permit switch and actuation of the auto ignition lock with the electronically coded key.
83 Citations
8 Claims
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1. A mechanical-electronic lock system for actuating auto ignitions and the like only upon sequential electronic and mechanical unlocking operations including a matching of a stored electronic lock code with an electronic key code generated as a key is being inserted into a lock cylinder followed by a mechanical turning of the key in the cylinder, the lock system comprising:
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control means in a separate compartment and including storage means for storing a predetermined electrical lock code, comparator means for comparing said electrical lock code with electrical input codes to said control means, and means responsive only to a match between said lock and input codes for preconditioning an auto ignition and/or auto accessories for operating only in response to a subsequent mechanical turning of a lock cylinder in a mechanical key-actuated auto ignition lock; a mechanical key-actuated auto ignition lock including a manually turnable lock cylinder for actuating said auto ignition and/or said auto accessories only after a preconditioning thereof by said control means followed by a turning of said lock cylinder, said cylinder having a keyway for receiving a mating ignition key for turning said lock cylinder in response to a turning of said mating ignition key; a mating ignition key insertable into said keyway for turning said lock cylinder in response to a manual turning of said key and carrying a key code on a side face of said key, said key code matching said lock code; transducer means in said auto ignition lock for reading said key code and generating an electrical key code indicative of said key code as said key is being inserted into said keyway; and means for applying said electrical key code to said control means as an electrical input code for comparison and matching with said electrical lock code to precondition said auto ignition and/or accessories. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification