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公开(公告)号：US20140266627A1
公开(公告)日：2014-09-18
申请号：US14212846
申请日：2014-03-14
申请人： Assa Abloy AB
IPC分类号： G06K7/00
CPC分类号： G06K7/0008 , G06K7/10138 , G06K7/10148 , G06K7/10198
摘要： Methods and systems are provided for an RFID system that can be tuned dynamically and/or in real-time during a coupling event between a reader and a transponder. The reader can comprise an antenna assembly, a signal driver, and a controller. The antenna assembly may include a tuning circuit and an antenna coupled to the tuning circuit. The tuning circuit can include registers that may be set to adjust one or more characteristics of the reader. A controller is coupled to the antenna assembly to determine characteristics of the received signal and to set hardware or firmware functions that improve the coupling of the reader and transponder and/or improve the reception of the signal(s) from the transponder.
摘要翻译： 为RFID系统提供方法和系统，其可以在读取器和应答器之间的耦合事件期间动态地和/或实时地调谐。 读取器可以包括天线组件，信号驱动器和控制器。 天线组件可以包括调谐电路和耦合到调谐电路的天线。 调谐电路可以包括可以设置为调整读取器的一个或多个特性的寄存器。 控制器耦合到天线组件以确定接收到的信号的特性并且设置改善读取器和应答器的耦合的硬件或固件功能和/或改善来自应答器的信号的接收。
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公开(公告)号：US09990485B2
公开(公告)日：2018-06-05
申请号：US14866417
申请日：2015-09-25
申请人： Assa Abloy AB
发明人： Toby Mark Padilla , David Edward Andresky , Bryan Stephen Holloway , Kieran Wingfield , Michael Margraf
CPC分类号： G06F21/34 , G06F21/32 , G06F21/6245 , G07C9/00111 , G07C9/00309 , G07C2209/08 , H04B5/0062
摘要： An anti-passback algorithm for an access control system is described. The anti-passback algorithm prevents the use of valid credentials to gain access to an access-controlled area by more than one person within a given period of time. The algorithm is capable of distinguishing between credentials intentionally presented to the access control system and credentials that are unintentionally read by the access control system. Certain variables may be set by the access control system manufacturer or a trusted individual to adapt the algorithm for applications.
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公开(公告)号：US09767328B2
公开(公告)日：2017-09-19
申请号：US14212846
申请日：2014-03-14
申请人： Assa Abloy AB
CPC分类号： G06K7/0008 , G06K7/10138 , G06K7/10148 , G06K7/10198
摘要： Methods and systems are provided for an RFID system that can be tuned dynamically and/or in real-time during a coupling event between a reader and a transponder. The reader can comprise an antenna assembly, a signal driver, and a controller. The antenna assembly may include a tuning circuit and an antenna coupled to the tuning circuit. The tuning circuit can include registers that may be set to adjust one or more characteristics of the reader. A controller is coupled to the antenna assembly to determine characteristics of the received signal and to set hardware or firmware functions that improve the coupling of the reader and transponder and/or improve the reception of the signal(s) from the transponder.
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公开(公告)号：US20180173907A1
公开(公告)日：2018-06-21
申请号：US15839578
申请日：2017-12-12
申请人： ASSA ABLOY AB
CPC分类号： G06K7/10297 , G06F21/34 , G06K7/10198 , G06K7/10465 , G07C9/00111
摘要： An access control reader includes a credential interface and a network interface. The access control reader includes a processor coupled to the credential interface and the network interface and computer memory coupled with the processor and comprising instructions that are executable by the processor. The instructions comprise instructions to determine that the access control reader has been connected to a power source, and instructions to monitor activity at the credential interface after the access control reader has been connected to the power source. The instructions comprise instructions that cause the access control reader to enter either a first mode of operation or a second mode of operation dependent upon whether or not activity is detected at the credential interface within a threshold amount of time after the access control reader has been connected to the power source.
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公开(公告)号：US10452877B2
公开(公告)日：2019-10-22
申请号：US15839578
申请日：2017-12-12
申请人： ASSA ABLOY AB
摘要： An access control reader includes a credential interface and a network interface. The access control reader includes a processor coupled to the credential interface and the network interface and computer memory coupled with the processor and comprising instructions that are executable by the processor. The instructions comprise instructions to determine that the access control reader has been connected to a power source, and instructions to monitor activity at the credential interface after the access control reader has been connected to the power source. The instructions comprise instructions that cause the access control reader to enter either a first mode of operation or a second mode of operation dependent upon whether or not activity is detected at the credential interface within a threshold amount of time after the access control reader has been connected to the power source.
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公开(公告)号：US20160092666A1
公开(公告)日：2016-03-31
申请号：US14866417
申请日：2015-09-25
申请人： Assa Abloy AB
发明人： Toby Mark Padilla , David Edward Andresky , Bryan Stephen Holloway , Kieran Wingfield , Michael Margraf
CPC分类号： G06F21/34 , G06F21/32 , G06F21/6245 , G07C9/00111 , G07C9/00309 , G07C2209/08 , H04B5/0062
摘要： An anti-passback algorithm for an access control system is described. The anti-passback algorithm prevents the use of valid credentials to gain access to an access-controlled area by more than one person within a given period of time. The algorithm is capable of distinguishing between credentials intentionally presented to the access control system and credentials that are unintentionally read by the access control system. Certain variables may be set by the access control system manufacturer or a trusted individual to adapt the algorithm for applications.
摘要翻译： 描述了用于访问控制系统的反回传算法。 反传递算法防止在给定的时间段内使用有效的凭据来访问多个人的访问控制区域。 该算法能够区分有意地呈现给访问控制系统的凭证和由访问控制系统无意地读取的凭证。 某些变量可以由访问控制系统制造商或信任的个体设置，以适应应用的算法。
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