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公开(公告)号：US11044587B2
公开(公告)日：2021-06-22
申请号：US16814141
申请日：2020-03-10
申请人： CenTrak, Inc.
发明人： Karuppiah Annamalai
摘要： A real-time location system including a backbone communication network having a plurality of network access point devices and a real-time location system server, a plurality of monitor devices where each monitor device being located at a location around a facility, each of the plurality of monitor devices being configured to transmit a unique monitor identification code using a secondary transmission technology, each of the monitor identifications codes being mapped to a single location in the facility at which a monitor device is located, each of the monitor devices further being configured to transmit an RF beacon using a first RF protocol, and at least one tag being configured to receive, detect and retransmit the monitor identification code back to at least one of the plurality of monitor devices using a second RF protocol.
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公开(公告)号：US10966056B1
公开(公告)日：2021-03-30
申请号：US16775880
申请日：2020-01-29
申请人： CenTrak, Inc.
发明人： Israel Amir
摘要： A system and methods for estimating the location of a mobile device are disclosed. In accordance with one embodiment, a mobile device receives an ultrasound signal lacking an identification of the source of the ultrasound signal. One or both of the mobile device or a server identify which of a plurality of beacons transmitted the ultrasound signal based on the time at which the mobile device received the ultrasound signal and the time at which the mobile device received a wireless electromagnetic signal prior to receiving the ultrasound signal. One or both of the mobile device or the server estimate a location of the mobile device based on the identified beacon and on the times at which the mobile device received the wireless electromagnetic and ultrasound signals.
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公开(公告)号：US10593187B2
公开(公告)日：2020-03-17
申请号：US15919747
申请日：2018-03-13
申请人： CenTrak, Inc.
发明人： Israel Amir
摘要： A bed proximity-determining system includes communications functionality and an ability to determine the proximity of a caregiver to a bed. Based on that proximity, the system transmits commands to the bed or a local system.
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公开(公告)号：US10395456B2
公开(公告)日：2019-08-27
申请号：US15849338
申请日：2017-12-20
申请人： CenTrak, Inc.
发明人： Israel Amir , Tim Boger
摘要： A security system and method includes a tag that continues to function in the presence of LF noise by (i) detecting the LF noise, and (ii) generating an RF signal comprising information that causes a controller to issue a lock command.
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公开(公告)号：US10094922B1
公开(公告)日：2018-10-09
申请号：US14616934
申请日：2015-02-09
申请人： CenTrak Inc.
发明人： Israel Amir
摘要： A position location system and method, the system including: an infrared (IR) transmitter, a first and a second ultrasound (US) transmitter, the first and a second US transmitters arranged at respective predetermined distances from a reference plane, an IR receiver configured to receive an IR signal from the IR transmitter, a US receiver configured to receive a first US signal from the first US transmitter and a second US signal from the second US transmitter; and a processor coupled to a memory and further coupled to the IR receiver and the US receiver, the processor configured to detect: a time of flight (ToF) of the first US signal from the first US transmitter to the US receiver; and a ToF of the second US signal from the second US transmitter to the US receiver.
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公开(公告)号：US09510146B1
公开(公告)日：2016-11-29
申请号：US14503831
申请日：2014-10-01
申请人： CenTrak Inc.
发明人： Israel Amir , Deepak Gopi
CPC分类号： H04W56/0025 , H04B10/1143 , H04B10/1149 , H04W4/021 , H04W56/0015 , H04W84/12
摘要： A RTL system and method for operating, the system including: a plurality of groups, each group including: a battery-operated wireless timing beacon generator to transmit timing beacons, wherein the timing beacon generator obtains its timing synchronization for the timing beacons wirelessly from a timing server; and one or more battery-operated secondary technology base-stations to receive the timing beacons, and to transmit respective secondary technology transmissions based on the received timing beacons; and a portable tag to be located, the portable tag configured to receive timing beacons and secondary technology transmissions from at least one group.
摘要翻译： 一种用于操作的RTL系统和方法，所述系统包括：多个组，每组包括：电池供电的无线定时信标发生器，用于发送定时信标，其中所述定时信标发生器从无线方式获得其定时信标的定时同步， 定时服务器 以及一个或多个电池供电的二次技术基站，用于接收定时信标，并且基于所接收的定时信标发送相应的二次技术传输; 以及待定位的便携式标签，所述便携式标签被配置为从至少一个组接收定时信标和二次技术传输。
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37.发明授权System and method of enhanced RTLS for improved performance in wireless networks 有权增强RTLS的系统和方法，以提高无线网络的性能公开(公告)号：US09298958B1
公开(公告)日：2016-03-29
申请号：US13875379
申请日：2013-05-02
申请人： Centrak, Inc.
发明人： Israel Amir
CPC分类号： G06K7/10009 , G06K19/0717 , G06K19/0723 , H04W52/0216 , Y02D70/00 , Y02D70/142 , Y02D70/166
摘要： A wireless active RFID tag, system and method, the system including: a plurality of access points, wherein each access point is groupable by a characteristic in common with another access point; a system controller communicatively coupled to a system memory and to the plurality of access points; and an active RFID tag, the tag comprising: a transmitter module configured to transmit, to access points in the system, request for an acknowledgement from any member of a predetermined group of access points. The acknowledgement may further include one or more of a time reference used by the system; and an identification of secondary technologies used by the system.
摘要翻译： 一种无线有源RFID标签，系统和方法，所述系统包括：多个接入点，其中每个接入点可由与另一接入点共同的特性分组; 通信地耦合到系统存储器和多个接入点的系统控制器; 和有源RFID标签，所述标签包括：发射机模块，被配置为向所述系统中的接入点发送对预定组接入点的任何成员的确认的请求。 所述确认还可以包括所述系统使用的时间参考中的一个或多个; 以及系统使用的二次技术的识别。
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公开(公告)号：US08139945B1
公开(公告)日：2012-03-20
申请号：US12016547
申请日：2008-01-18
申请人： Israel Amir , Karuppiah Annamalai
发明人： Israel Amir , Karuppiah Annamalai
CPC分类号： H04W4/02 , G01S5/22 , H04B10/1149 , H04W4/021 , H04W4/80
摘要： Methods and systems for determining a location and an identity of a portable device are provided. The system includes apparatus for transmitting timing synchronization information, a plurality of stationary infrared (IR) base stations and a plurality of portable devices. Each IR base station is configured to receive the timing synchronization information and to transmit a corresponding IR location code in a time period based on the received timing synchronization information. Each portable device is configured to: 1) receive the timing synchronization information, 2) detect the IR location codes from the IR base stations and 3) transmit an output signal including a portable device ID representative of the portable device and the detected IR location code. Each portable device is synchronized to detect the IR location code in the time period based on the received timing synchronization information.
摘要翻译： 提供了用于确定便携式设备的位置和身份的方法和系统。 该系统包括用于发送定时同步信息的装置，多个固定红外（IR）基站和多个便携式设备。 每个IR基站被配置为接收定时同步信息，并且基于接收的定时同步信息在一段时间内发送对应的IR位置码。 每个便携式设备被配置为：1）接收定时同步信息，2）从IR基站检测IR位置代码; 3）发送包括表示便携式设备的便携式设备ID的输出信号和检测到的IR位置代码 。 每个便携式设备被同步以基于接收到的定时同步信息在该时间段内检测IR位置代码。
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