发明名称 Electronic access control device
摘要 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.
申请公布号 US7741952(B2) 申请公布日期 2010.06.22
申请号 US20070708730 申请日期 2007.02.21
申请人 发明人 DENISON WILLIAM D.;BROWNFIELD LAWRENCE C.;SILVERS BRADLEY S.
分类号 H01L29/80 主分类号 H01L29/80
代理机构 代理人
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