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    • 7. 发明申请
    • Method of communicating in a radio frequency identification system using aloha networks
    • 使用aloha网络在射频识别系统中进行通信的方法
    • US20080180222A1
    • 2008-07-31
    • US11698242
    • 2007-01-26
    • Allen HollisterGary BartaJohn T. Armstrong
    • Allen HollisterGary BartaJohn T. Armstrong
    • H04Q7/00
    • H04L61/2046H04L29/12264H04L67/12
    • A method is presented for taking an unknown field of transponders and converting them to a slotted Aloha architecture and increasing the throughput allowed by the slotted Aloha architecture by using several different techniques including shortening the time of empty and collided timeslots, implementing a unique random number generator that creates random numbers that are uniquely based on an individual tags location, and on an ability to estimate the total number of transponders and control the offered rate such that throughput is always maximum. While these techniques work well together and produce the most benefit when used together, they are independent techniques and any one may be used alone without the others. Thus a system might use the estimated total number of transponders technique and the timeslot shortening technique, but use a standard random number generator rather one based on transponder location with only a small decrease in overall performance.
    • 提出了一种方法,用于采集应答器的未知字段并将其转换为时隙的Aloha架构,并通过使用几种不同的技术来增加时隙Aloha架构允许的吞吐量,包括缩短空和冲突时隙的时间,实现唯一的随机数生成器 其创建基于单个标签位置唯一的随机数,以及估计转发器总数并控制提供的速率使得吞吐量总是最大的能力。 虽然这些技术在一起工作,并且在一起使用时产生最大的收益,但是它们是独立的技术,任何一种都可以单独使用而不需要其他技术。 因此,系统可以使用估计的转发器技术总数和时隙缩短技术,但是使用标准随机数发生器,而不是基于应答器位置,而整体性能只有很小的降低。