US 2007/0164324 A1 · Electronic access control device

Abstract

An electronic lock utilizes two microprocessors remote from each other for enhanced security. The first microprocessor is disposed close to an input device such as a keypad, and the second microprocessor is disposed close to the lock mechanism and well protected from external access. The first microprocessor transmits a communication code to the second microprocessor when it receives via the input device an access code that matches a preset access code. The second microprocessor opens the lock if the transmitted communication code matches a preset communication code. The dual-microprocessor arrangement is advantageously used in a voice controlled access control system and in a motorcycle ignition control system. The present invention further provides an electronic access control system which has a master electronic key having a preset number of access, and an electronic alarm system for a bicycle that has a remote control mounted in the helmet of the rider.

Claims30

Dependent claims

An electronic access control device comprising:

first and second controllers conductively connected to each other and separated from each other, wherein the second controller is shielded from external access and comprising a memory for storing a communication code;
the second controller receiving a request and transmitting the communication code to the first controller;
the first controller receiving an input access signal from a key or keypad, and comparing the input access signal to a stored access code to determine if the input access code is valid;
the first controller sending the communication code to the second controller if the input access code is valid, wherein the second controller provides a signal to energize a circuit to access a lock.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/708,730Filed 21 Feb 2007

Priority

15 Nov 1994

Published

19 Jul 2007

Term ends

Not estimatedThe source records don’t support an estimate.

Classification20 codes

G07C 9/00571
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers…:…
B60R 25/102
Actuating a signalling device: a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security…
B62H 5/20
Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles: indicating unauthorised use, e.g. acting on…
G07C 9/00182
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers…:…

Family

Application08/339,555Continuation in part · filed 15 Nov 1994

Application08/760,062Continuation · filed 4 Dec 1996

Application08/760,062Continuation in part · filed 4 Dec 1996

Application10/024,945Continuation · filed 19 Dec 2001

Application10/885,948Continuation · filed 7 Jul 2004

Application11/254,263Continuation · filed 20 Oct 2005

Application11/708,730Continuation · filed 21 Feb 2007

US 2002/0097141 A1Published application

US 2004/0252016 A1Published application

US 2005/0077998 A2Published application

US 2006/0038657 A1Published application