Vehicle burglar alarm apparatus with electronic memory and digital disabling combination
First Claim
1. A burglar alarm apparatus with electronic memory and digital disabling combination, particularly for use in motor-cars, motor boats or the like, comprising:
- (a) an electronic control board having;
(i) a keyboard provided with a plurality of digit combination entering keys, an engine start key, an engine stop key, a garage key, by means of which garage key the apparatus can be disabled after a valid combination has been entered, still keeping the normal ignition key operation on,(ii) a processing unit, responsive to said keyboard and preferably including a microcomputer, controlling the operation of the whole apparatus, an electronic memory connected to said microcomputer and having the initial combination stored in, a reset circuit for generating an enabling reset signal for said microcomputer whenever said stop key is depressed; and
(b) an electronic actuating board, responsive to said electronic control board and acting on the main engine circuits and alarms, having;
(i) a driver circuit responsive to the microcomputer outputs and issuing control signals, upon the ignition key insertion, to the power relays which operate the signalling and electrical engine circuits of the motor-car,(ii) at least one alarm circuit with a time-delay relay.
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Accused Products
Abstract
Burglar alarm apparatus particularly for motor-cars or the like, comprising an electronic memory with digital combination, associated with a microcomputer for controlling all the functions of the apparatus with no need to manually control its enabled or disabled operation modes, which automatically take place when the combination valid for operation has been entered.
The opportunity of starting the engine by means of the ignition key, with the valid combination entered, is also provided for, in order to permit the parking manoeuvres, still keeping on the function of automatically enabling the apparatus when the engine is stopped.
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Citations
19 Claims
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1. A burglar alarm apparatus with electronic memory and digital disabling combination, particularly for use in motor-cars, motor boats or the like, comprising:
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(a) an electronic control board having; (i) a keyboard provided with a plurality of digit combination entering keys, an engine start key, an engine stop key, a garage key, by means of which garage key the apparatus can be disabled after a valid combination has been entered, still keeping the normal ignition key operation on, (ii) a processing unit, responsive to said keyboard and preferably including a microcomputer, controlling the operation of the whole apparatus, an electronic memory connected to said microcomputer and having the initial combination stored in, a reset circuit for generating an enabling reset signal for said microcomputer whenever said stop key is depressed; and (b) an electronic actuating board, responsive to said electronic control board and acting on the main engine circuits and alarms, having; (i) a driver circuit responsive to the microcomputer outputs and issuing control signals, upon the ignition key insertion, to the power relays which operate the signalling and electrical engine circuits of the motor-car, (ii) at least one alarm circuit with a time-delay relay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification