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公开(公告)号：US10365347B1
公开(公告)日：2019-07-30
申请号：US16157657
申请日：2018-10-11
申请人： CenTrak, Inc.
发明人： Israel Amir , Karuppiah Annamalai
IPC分类号： G01S5/22
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 ultrasonic base stations and a plurality of portable devices. Each ultrasonic base station is configured to receive the timing synchronization information and to transmit a corresponding ultrasonic 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 ultrasonic location codes from the ultrasonic base stations and 3) transmit an output signal including a portable device ID representative of the portable device and the detected ultrasonic location code. Each portable device is synchronized to detect the ultrasonic location code in the time period based on the received timing synchronization information.
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公开(公告)号：US10152862B2
公开(公告)日：2018-12-11
申请号：US15685388
申请日：2017-08-24
申请人： CenTrak, Inc.
IPC分类号： G08B13/14 , G08B13/24 , E05B73/00 , G08B13/196
摘要： A security system in accordance with an embodiment of the present invention includes a security tag operable for connection to an object, a monitoring device operable to monitor whether a party removes or attempts to remove the security tag from the object; an alarm operable to emit a tamper signal when the monitoring device indicates that a party has removed or attempted to remove the security tag from the object in an unauthorized removal condition, and a remote collector system adapted to communicate with the security tag to set the security tag in the unauthorized removal condition and an authorized removal condition, wherein upon receipt of the tamper signal, the remote collector system generates a security message.
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公开(公告)号：US09622030B1
公开(公告)日：2017-04-11
申请号：US14549876
申请日：2014-11-21
申请人： Centrak, Inc.
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 ultrasonic base stations and a plurality of portable devices. Each ultrasonic base station is configured to receive the timing synchronization information and to transmit a corresponding ultrasonic 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 ultrasonic location codes from the ultrasonic base stations and 3) transmit an output signal including a portable device ID representative of the portable device and the detected ultrasonic location code. Each portable device is synchronized to detect the ultrasonic location code in the time period based on the received timing synchronization information.
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公开(公告)号：US09231699B1
公开(公告)日：2016-01-05
申请号：US13423662
申请日：2012-03-19
申请人： Israel Amir , Karuppiah Annamalai
发明人： Israel Amir , Karuppiah Annamalai
IPC分类号： H04B10/114
CPC分类号： H04W4/02 , G01S5/22 , H04B10/1149 , H04W4/021 , H04W4/80
摘要： Systems for determining a location of a portable device are provided. The system includes stationary infrared (IR) base stations, portable devices and at least one radio frequency (RF) transceiver. At least two of the IR base stations receive timing synchronization information and transmit corresponding IR location codes in a time period based on the received timing synchronization information. Each IR location code is representative of a location of the corresponding IR base station. Each portable device detects the IR location codes and, if one of the IR location codes is detected, transmits an output signal including a portable device ID representative of the portable device and the detected IR location code. The RF transceiver periodically provides, upon a request, the timing synchronization information to the respective IR base stations relative to a unified time of origin.
摘要翻译： 提供了用于确定便携式设备的位置的系统。 该系统包括固定红外（IR）基站，便携式设备和至少一个射频（RF）收发器。 至少两个IR基站接收定时同步信息，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IR位置代码代表对应的IR基站的位置。 每个便携式设备检测IR位置代码，并且如果检测到IR位置代码之一，则发送包括表示便携式设备的便携式设备ID和检测到的IR位置代码的输出信号。 RF收发器根据请求周期性地将定时同步信息相对于原始的统一时间提供给相应的IR基站。
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公开(公告)号：US08018584B1
公开(公告)日：2011-09-13
申请号：US12174964
申请日：2008-07-17
申请人： Israel Amir
发明人： Israel Amir
IPC分类号： G01B11/26
摘要： Methods and systems for locating a portable device in an enclosure having a location defining a virtual wall are provided. The system includes first and second infrared (IR) transmitters directed to opposite sides of the virtual wall. Each of the transmitters is configured to selectively transmit an interfering IR signal (IIS) and a data signal including a corresponding transmitter location ID.
摘要翻译： 提供了用于在具有限定虚拟壁的位置的外壳中定位便携式设备的方法和系统。 该系统包括指向虚拟墙的相对侧的第一和第二红外（IR）发射器。 每个发射机被配置为选择性地发送干扰IR信号（IIS）和包括对应的发射机位置ID的数据信号。
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公开(公告)号：US20230147044A1
公开(公告)日：2023-05-11
申请号：US18085596
申请日：2022-12-21
申请人： CenTrak, Inc.
发明人： Israel AMIR
CPC分类号： H04W4/029 , H04W64/003 , H04W4/80 , H04W4/023 , G01S5/14 , H04W4/33 , G01S5/0252
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 a wireless electromagnetic signal and an ultrasound signal from a first beacon during a first occurrence of a time slot. The mobile device further receives a wireless electromagnetic signal and an ultrasound signal from a second beacon during a second occurrence of the time slot, where the ultrasound signals from the first and second beacons have non-overlapping areas of coverage. The electromagnetic and ultrasound signals from the first beacon are used to estimate a first location of the mobile device, and the electromagnetic and ultrasound signals from the second beacon are used to estimate a second location of the mobile device.
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公开(公告)号：US20210235230A1
公开(公告)日：2021-07-29
申请号：US17178888
申请日：2021-02-18
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 located within a first corridor of a building receives (1) a first wireless electromagnetic signal and a first ultrasound signal from a first beacon located in the first corridor, (2) a second wireless electromagnetic signal and a second ultrasound signal from a second beacon located in the first corridor, and (3) a third wireless electromagnetic signal from a third beacon located in a second corridor of the building. The first wireless electromagnetic signal, the first ultrasound signal, the second wireless electromagnetic signal, and the second ultrasound signal are used to estimate a location of the mobile device.
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公开(公告)号：US10609526B2
公开(公告)日：2020-03-31
申请号：US15868101
申请日：2018-01-11
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：US10126407B1
公开(公告)日：2018-11-13
申请号：US15458153
申请日：2017-03-14
申请人： CenTrak, Inc.
发明人： Israel Amir , Karuppiah Annamalai
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 ultrasonic base stations and a plurality of portable devices. Each ultrasonic base station is configured to receive the timing synchronization information and to transmit a corresponding ultrasonic 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 ultrasonic location codes from the ultrasonic base stations and 3) transmit an output signal including a portable device ID representative of the portable device and the detected ultrasonic location code. Each portable device is synchronized to detect the ultrasonic location code in the time period based on the received timing synchronization information.
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公开(公告)号：US09794904B1
公开(公告)日：2017-10-17
申请号：US14971792
申请日：2015-12-16
申请人： Centrak Inc.
发明人： Israel Amir , Deepak Gopi
IPC分类号： H04W56/00 , H04B10/114
CPC分类号： H04W56/0025 , H04B10/1143 , H04B10/1149 , H04W4/021 , H04W56/0015 , H04W84/12
摘要： Real-time location system and method, the system including a tag and a plurality of groups, each group including: a plurality of battery operated secondary technology base-stations, and a battery operated wireless timing beacon generator to provide a timing beacon to the group, such that the timing beacon generator for a group obtains timing information for the timing beacon wirelessly from a timing server, and such that each timing beacon generator transmits timing beacons with timing information to the plurality of base-stations in the group, and each secondary technology base-station transmits a secondary technology signal to the tag based on the received timing beacon.
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