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    • 1. 发明授权
    • Radio frequency identification transponder
    • 射频识别转发器
    • US07248145B2
    • 2007-07-24
    • US10204159
    • 2001-02-28
    • Stuart Colin LittlechildMichael John Stanton
    • Stuart Colin LittlechildMichael John Stanton
    • H04Q5/22
    • G06K7/10435G06K7/0008G06K7/10029G06K19/0723
    • A radio frequency identification transponder including a power supply and a dynamic memory array which stores data. When power from the power supply ceases the data in the dynamic memory array is validly maintained for a predetermined period of time. The dynamic memory array is responsive to an interrogating signal for selectively updating the data. Further claimed is a radio frequency identification transponder wherein a signal processor extracts an identifier from the interrogation signal and is responsive to the identifier and the stored data to determine whether some or all of the identifier is stored in the dynamic memory array. Further claimed is a system wherein a transmitter provides a plurality of temporally spaced interrogating signals which are received by a receiver which incorporates a signal processor that is able to determine the order in which transponders were first in receipt of the interrogating signal. Further claimed is a baggage handling system wherein a transmitter provides a plurality of temporally spaced interrogating signals into an interrogating space through which a conveyor sequentially progresses baggage, a receiver receives transponder response signals which include baggage identity data, a signal processor then extracts the identity data and determines the order in which the baggage has progressed through the interrogating space.
    • 射频识别应答器,包括电源和存储数据的动态存储器阵列。 当来自电源的电源停止时,动态存储器阵列中的数据被有效地保持预定的时间段。 动态存储器阵列响应于询问信号以选择性地更新数据。 进一步要求保护的是射频识别转发器,其中信号处理器从询问信号中提取标识符,并响应于标识符和存储的数据,以确定是否将部分或全部标识符存储在动态存储器阵列中。 进一步要求保护的是一种系统,其中发射机提供多个时间间隔的询问信号,这些信号由接收机接收,该接收机包括能够确定应答器首先接收询问信号的顺序的信号处理器。 进一步要求保护的是一种行李处理系统,其中发射机将多个时间间隔的询问信号提供到询问空间中,传送器通过该查询空间顺序地行进,接收机接收包括行李识别数据的应答器响应信号,然后信号处理器提取标识数据 并确定行李已经通过询问空间进行的顺序。