公开(公告)号：US20160180121A1

公开(公告)日：2016-06-23

申请号：US15053874

申请日：2016-02-25

Applicant: ZIH Corp.

Inventor： Dani Raphaeli ,  Gideon Kaplan ,  Abraham Menkes ,  Guy Sela ,  Izhar Marinov ,  Uzi Ram

IPC: G06K7/10

CPC classification number: G06K7/10019 ,  G06K7/10306 ,  G06K7/10356 ,  H04W74/00

Abstract: An example method includes estimating whether a collision occurred between a plurality of wide band response signals, the wide band response signals being responsive to a first interrogation signal transmitted by a first reader; when the collision is estimated to have occurred and the first reader received a first response from a particular tag, transmitting, by the first reader, a second interrogation signal, the second interrogation signal initiating a communication session between the reader and the particular tag; and transmitting, by the first reader, an acknowledgement packet to cause the tag to refrain from responding to a command during the communication session; and a second reader to refrain from interrogating the particular tag during the communication session.

Abstract translation: 一种示例性方法包括估计在多个宽带响应信号之间是否发生冲突，宽带响应信号响应于由第一读取器发送的第一询问信号; 当估计碰撞已经发生并且第一读取器从特定标签接收到第一响应时，由第一读取器发送第二询问信号，第二询问信号发起读取器和特定标签之间的通信会话; 以及由所述第一读取器发送确认分组，以使所述标签在所述通信会话期间不响应命令; 以及在通信会话期间不要询问特定标签的第二读取器。

公开(公告)号：US09454885B2

公开(公告)日：2016-09-27

申请号：US14518629

申请日：2014-10-20

Applicant: ZIH CORP.

Inventor： Dani Raphaeli

IPC: G08B19/00 ,  G08B13/24 ,  G01S5/02 ,  G01S13/74

CPC classification number: G08B13/2494 ,  G01S5/0289 ,  G01S13/74

Abstract: A system capable of monitoring an area and detecting a disturbance with the area. The system has a plurality of ultra-wide band radio frequency tags, each of the tags including a digital signal processing module configured to monitor changes in radio frequency multipath properties of received packets transmitted by at least one other of the tags. Changes in the radio frequency multipath properties may be caused by a disturbance indicative of an object in the vicinity of the tags. A corresponding method is also disclosed.

Abstract translation: 一种能够监测区域并检测该区域的干扰的系统。 该系统具有多个超宽带射频标签，每个标签包括数字信号处理模块，该数字信号处理模块被配置为监视由至少另一个标签发送的接收分组的射频多径性质的变化。 射频多径性质的改变可能是由指示标签附近的物体的干扰引起的。 还公开了相应的方法。