发明名称 System and method of extending communications with the wiegand protocol
摘要 An extension of the industry standard Wiegand protocol for enabling two way extended communication, enhanced error detection, encryption, multiple reader capability, and enhanced information regarding the embedded data stream between a Wiegand device such as a card reader and a control panel on the existing 5-wire bus structure without requiring the modification to the existing infrastructure.
申请公布号 US6988203(B2) 申请公布日期 2006.01.17
申请号 US20010828395 申请日期 2001.04.06
申请人 HONEYWELL INTERNATIONAL INC. 发明人 DAVIS MICHAEL;HULUSI TAM
分类号 H04L9/32;G07C9/00 主分类号 H04L9/32
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